Power Procedures Table

Transcription

1 Go To Table Of Contents Next Power Procedures Table Model Numbers: thru -005 Service and Parts Manual FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY SF-89 Part No Rev (9/0/7)

2 Table Of Contents General Information Section A Section B GENERAL INFORMATION Symbols... iii Ordering Parts... iii Serial Number Location... iii Specifications... iv Model Identification / Compliance Charts:... v Scheduled Maintenance... vi Warranty Information... vii OPERATION & TROUBLESHOOTING Power to the Chair: Standard Base... A- Rotational Base... A-4 Base Up / Down... A-8 Back Up / Down... A-6 Tilt Up / Down... A- Foot Up / Down... A-0 Crash Avoidance System... A-8 Position Programming... A-4 "Home" Function... A-44 Quick Chair Function... A-49 Foot Extension... A-5 Chair Receptacles... A-54 Rot. Base Brake System... A-56 TESTING & REPAIR Primary Fuses... B- Hand / Foot Control... B- Actuators / Limit Switches: Base... B-6 Back... B-0 Tilt... B-4 Foot... B-9 Foot Extension... B-4 Gas Springs... B-7 Isolation Transformer / Chair Receptacles... B-8 Section E Section D Section C Section B TESTING & REPAIR - continued Main System Transformer... B-9 Position Sensors... B- Main PC Board... B-7 Rotational Base Brake System... B-4 ACCESS PROCEDURES PC Board Cover: Standard Base... C- Rotational Base... C- Base Shrouds: Raising w/bungee cord... C-4 Lowering / Removing... C-5 Upholstery Installation... C-6 WIRING DIAGRAMS 64 (-00)... D- 64 (-00)... D- 64 (-004 & -005)... D-4 EXPLODED VIEWS / PARTS LISTS 64 (-00 & -00)... E- 64 (-004 & -005)... E- * Indicates multiple pages due to model / serial number break(s)

3 General Information Symbols DANGER Indicates an imminently hazardous situation which will result in serious or fatal injury if not avoided. This symbol is used only in the most extreme conditions. WARNING Indicates a potentially hazardous situation which could result in serious injury if not avoided. CAUTION Indicates a potentially hazardous situation which may result in minor or moderate injury if not avoided. It may also be used to alert against unsafe practices. Equipment Alert Indicates a potentially hazardous situation which could result in equipment damage if not avoided. In Section A, test the components in the order indicated. (ex. st then, nd ) Refer to Section B for component testing procedures. The symbols below may be used in this manual to represent the operational status of table functions and components. Indicates the function / component is working properly. No action required. Indicates the function / component is working, but a problem exists. Indicates the function / component is not working at all. Ordering Parts General Information The following information is required when ordering parts: Serial number & model number Part number for desired part. [Refer to Exploded Views / Parts Lists section] Non-warranty parts orders may be faxed to Midmark using the Fax Order Form in the back of this manual. For warranty parts orders, call Midmark's Technical Service Department with the required information. Hours: 8:00 am until 5:00 pm EST [Monday - Friday] Phone: -(800)-Midmark Model / Serial Number Location Model / Serial Number Label MA774500i iii Rev. 7/6/

4 General Information Specifications Patient Weight (maximum) lbs (04 kgs) Min. * see below Maximum Height standard base: 40 in. (0.6 cm) rotational base: 4.5 in. (0.5 cm) Range of Motion...See illustration on this page Dimensions...See illustration on next page Weight of Table: w/ Standard Base lbs (00 kg) w/ Rotational Base...55 lbs (8 kg) (Note: For packaged weight, contact Midmark Customer Service) 9 in. (48. cm) * Minimum Height standard base: rotational base: 9 in. (48. cm).5 in. (57. cm) MA767500i Max. 0 + Power Cord:...8 ft. (4.8 cm) long Electrical Requirements:...See Compliance Charts Foot / Hand Control Voltage:...0 VAC, SELV (Safety Extra Low Voltage) Min Duplex Receptacle (optional) maximum load:...5 VAC, 5A, 50/60 Hz MA767700i Fuses: Main Power (located at power cord inlet): F & F...6.A, 50V, Type-T, 5 x 0 mm High-Breaking Current Duty Cycle: Actuator motor run time:...intermittent Operation (0 seconds ON / 5 minutes off) Max Classifications:...Class, Type B Applied Part, Protection against ingress of fluids:...ordinary Equipment Foot Control only:...ipx MA767800i Min Max Regulatory Compliance:...See Compliance Charts Table Speeds (by function): Back / Tilt: w/patient Load <00lbs (<90 kg)...less than 6 seconds w/patient Load >00lbs (>90 kg)...less than 0 seconds Base...less than 0 seconds Min Foot...less than 4 seconds MA767600i iv Equipment not suitable for use in the presence of a flammable anesthetic mixture with air, or with oxygen, or nitrous oxide.

5 General Information Model Identification / Compliance Chart Complies To: Electrical Ratings: Fire Code Ratings: All Standard upholstery complies with California Bureau of Home Furnishing Technical Bulletin 7. Model Description UL CAN/CSA., #60.-M90 EN EN (EMC) VAC +/-0% Amps Cycles (Hz) Optional upholstery is available that complies with California Bureau of Home Furnishing Technical Bulletin Power Procedures Chair (Non-Programmable) Configurable / Power Procedures Table (Programmable) w/ Receptacles / Power Procedures Chair (Non-Programmable) w/rotational Base Configurable / Power Procedures Table (Programmable) w/ Rotational Base Configurable / 60 v Rev. (5/8/)

6 General Information Scheduled Maintenance 64 Power Procedures Chair Interval Inspection or Service Service, Adjust, Repair, and / or Replace as Required (Refer to appropriate S&P or Quick Reference Guide) 64 Clean upholstery with appropriate diluted bleach solution 0: (water:bleach) X Weekly Cleaning Wipe painted metal & plastic surfaces with a clean soft cloth and mild cleaner. (NOTE: Periodic application of common furniture wax will ease cleaning, and maintain the luster of the surfaces). X Obvious Damage Visually inspect components for damage that could cause problems during operation or unsafe operation. X Semi-Annually Check all mechanical functions using the foot control. Repeat using the hand control when present. X Mechanical Operation Table shrouds should move smoothly & quietly when base is raised & lowered. (NOTE: There are plastic glides on the shroud tabs. Missing glides may result in noisy operation) X Labels / Decals Replace any missing or illegible labels. X Hardware All fasteners must be present and fastened securely. X Electrical System Inspect power cord and all wiring for damage. Be sure all electrical connections are tight. X X Date of Service: / / Location: Model: Serial Number: Service Technician: vi

7 Warranty Information SCOPE OF WARRANTY Midmark Corporation ( Midmark ) warrants to the original retail purchaser that it will, at Midmark s option, repair or replace components of the domestic and international medical products manufactured by Midmark (except for components not warranted under Exclusions ) that are defective in material or workmanship under normal use and service. The sole remedy under this limited warranty is the repair or replacement, at Midmark s option, of the applicable components. This limited warranty shall only apply to defects that are reported to Midmark within the applicable warranty period and which are determined to exist upon examination by Midmark,. This warranty extends only to the original retail purchaser of a product and is not transferable or assignable. Replacement components or products may be used and/or refurbished components or products, provided they are of like quality and specifications as new components or products. Midmark warrants to the original retail purchaser that during the applicable warranty period it will repair or replace software contained within the products manufactured by Midmark (except for those not warranted under Exclusions ) if: () the media on which the software is furnished exhibits defects in material or workmanship under normal use; or () the software does not substantially conform to its published specifications. APPLICABLE WARRANTY PERIOD The applicable warranty period, measured from the date of invoice to the original retail purchaser of the product and shall be one () year for all warranted products and components. OBTAINING WARRANTY SERVICE Warranty service must be obtained through either Midmark or an authorized dealer in the Midmark product line for which warranty service is requested. Midmark may be contacted for warranty service inquiries or issues via at by phone at -800-MIDMARK or by mail to Midmark Corporation, 60 Vista Drive, Versailles, Ohio It is the retail purchaser s obligation to arrange for delivery of a product to Midmark or one of its authorized dealers for warranty service, which delivery shall be at retail purchaser s expense. It is also the retail purchaser s obligation to comply with the warranty service instructions provided either by Midmark or its authorized dealer. The retail purchaser must provide Midmark with completed warranty registration information within thirty (0) days after purchase in order to obtain the benefits of this limited warranty. EXCLUSIONS: This limited warranty does not cover and Midmark shall not be liable for the following: () Defects, damage or other conditions caused, in whole or in part, by misuse, abuse, negligence, alteration, accident, freight damage, negligent storage, tampering or failure to seek and obtain repair or replacement in a timely manner; () Products which are not installed, used, and properly cleaned and maintained as required or recommended in the Midmark Installation and/or Installation/Operation Manual for the applicable product, including the specified structural and operational environmental conditions and electrical requirements; () Products considered to be of a consumable or sterile nature; (4) Accessories or parts not manufactured by Midmark; (5) Charges by anyone for adjustments, repairs, replacement parts, installation or other work performed upon or in connection with such products which are not expressly authorized in writing in advance by Midmark; (6) Costs and expenses of routine maintenance and cleaning; and (7) Representations and warranties made by any person or entity other than Midmark. (8) Matching of color, grain or texture except to commercially acceptable standards; (9) Changes in color caused by natural or artificial light; (0) Custom manufactured products; () Alterations or modifications to the product by any person or entity other than Midmark; and () Products that would otherwise by covered under this limited warranty, but are acquired: (i) from a person or entity that is not Midmark or one of its authorized dealers; or (ii) from a Midmark dealer that is not authorized to sell the product at issue in the geographic territory where the purchaser is located, or is not authorized to sell the product at issue within the medical market. General Information Warranty Information Continued STATUTE OF LIMITATIONS No action may be brought against Midmark for breach of this limited warranty, an implied warranty, if any, or for any other claim arising out of or relating to the products, more than ninety (90) days following expiration of the limited warranty period. NO AUTHORIZATION No person or firm is authorized to create or approve for Midmark any other obligation or liability in connection with the products. Additional Information Failure to follow the guidelines listed below will void the warranty and/or render the table unsafe for use. If a malfunction is detected, do not use the table until necessary repairs are made. Do not attempt to disassemble table, replace components, or perform adjustments unless you are a Midmark authorized service technician. Do not use another manufacturer's parts to replace malfunctioning components. Use only Midmark replacement parts SOFTWARE; WITH RESPECT TO SOFTWARE THAT IS A PRODUCT OR COMPONENT THEREOF, MIDMARK DOES NOT WARRANT THAT THE SOFTWARE: () IS ERROR FREE; () CAN BE USED WITHOUT PROBLEMS OR INTERRUPTIONS; OR () IS FREE FROM VULNERABILITY TO INTRUSION OR ATTACK BY VIRUSES OR OTHER METHODS. EXCLUSIVE REMEDY; CONSEQUENTIAL DAMAGES DISCLAIMER MIDMARK S ONLY OBLIGATION UNDER THIS LIMITED WARRANTY IS THE REPAIR OR REPLACEMENT OF DEFECTIVE PARTS. MIDMARK SH NOT BE LIABLE FOR AND HEREBY DISCLAIMS ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES OR DELAYS, INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS OR INCOME, LOSS OF USE, LOSS OF DATA, DOWN- TIME, COVER AND EMPLOYEE OR INDEPENDENT CONTRACTOR WAGES, PAYMENTS AND BENEFITS. THIS DISCLAIMER SH SURVIVE ANY FAILURE OR ASSERTED FAILURE OF THE ESSENTIAL PURPOSE OF THIS LIMITED WARRANTY OR ITS REMEDIES SPECIFIED HEREIN. WARRANTY DISCLAIMER THIS WARRANTY IS MIDMARK S ONLY WARRANTY AND IS IN LIEU OF OTHER WARRANTIES, EXPRESS OR IMPLIED. MIDMARK MAKES NO IMPLIED WARRANTIES OF ANY KIND INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THIS WARRANTY IS LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE PARTS. vii

8 General Information viii

9 Section A Operation & Troubleshooting Operation & Troubleshooting Function / System Power To The Table: models w/standard Base... A- models w/rotational Base... A-4 Base Up / Down... A-8 Back Up / Down... A-8 Tilt Up/Down... A- Foot Up/Down... A-0 Crash Avoidance System... A-8 Position Programming... A-4 "Home" Function... A-44 Quick Chair Function... A-49 Foot Extension... A-5 Table Receptacles... A-54 Rotational Base Brake System... A-56 A-

10 Operation & Troubleshooting Power To The Table (models w/ Standard Base) This illustration shows only the components that affect TABLE FUNCTIONS. Refer to the following page for a detailed description of the power supply to the table. Hand Control Troubleshooting [No Power / No Functions Will Operate] Power Light is: OFF... A-6 ON... A-7 Foot Control 8-0 VAC 8-0 VAC P9 P0 J J J J4 J5 J6 J7 J8 J9 Main PC Board J0 J J J J4 P P Power Light If Power Light is OFF, there is no power to PC Board. If Power Light is ON, proper voltage is present at PC Board. J5 [Red & orange wires supply 4-7 VAC to power circuitry for the Tilt & Foot actuators, hand/foot controls, power light, all limit switches, and position sensors] GN / YL BK RD OR Main System Transformer MA64600i [Black & white wires supply VAC to power circuitry for the Base & Back actuators] BL BR BL BL / BR BR / GN / YL H G D C B A N L F F Power Inlet Facility Supply Voltage A- Power To The Table (Standard Base) 64 (-00 & -00) all

11 Power To The Table (models w/ Standard Base) Facility Supply Voltage With the table's power cord properly connected, facility supply voltage (5 or 0 VAC) is supplied thru the cord to the power inlet. Power Inlet EQUIPMENT ALERT The voltage setting displayed in the power inlet window must match facility supply voltage (5 or 0 VAC). [Remove fuse holder and rotate 80 to change voltage setting]. Current flows thru two fuses in the power inlet, to the main system transformer. Main System Transformer NOTE This transformer is protected from overload by a thermal cutout feature. This will automatically reset when the transformer cools. 5V Operation & Troubleshooting Power Indicator Light When voltage is applied to the PC board, the power light is illuminated. Main PC Board Circuitry on the PC board provides the required voltage to power all of the table's components: hand/foot controls, actuators, limit switches, and position sensors. Hand / Foot Controls Circuitry on the main PC board supplies 8-0 VAC to the hand / foot control connection ports. Line voltage (5 or 0 VAC) is supplied to the main system transformer. The transformer reduces the voltage and current flows to the main PC board thru two separate windings (four wires). 0V 5V [The black & white wires supply VAC to power circuitry for the Base & Back actuators only]. [The red & orange wires supply 4-7 VAC to power circuitry for the Tilt & Foot actuators, hand/foot controls, power light, all limit switches, and position sensors (on Midmark models only)]. MA64600i 64 (-00 & -00) all Power To The Table (Standard Base) Rev. 7/6/ A-

12 Operation & Troubleshooting Power To The Table (models w/ Rotational Base) This illustration shows only the components that affect TABLE FUNCTIONS. Refer to the following page for a detailed description of the power supply to the table. Hand Control Troubleshooting [No Power / No Functions Will Operate] Power Light is: OFF... A-6 ON... A-7 Foot Control 8-0 VAC 8-0 VAC P9 P0 J J J J4 J5 J6 J7 J8 J9 J0 J GN / YL J5 Main PC Board J J J4 P Power Light If Power Light is OFF, there is no power to PC Board. If Power Light is ON, proper voltage is present at PC Board. [Black & white wires supply VAC to power circuitry for the Base & Back actuators] [Red & orange wires supply 4-7 VAC to power circuitry for the Tilt & Foot actuators, hand/foot controls, power light, all limit switches, and position sensors] BK OR RD J0 J9 Rotational Base PC Board J J J7 J5 J6 J4 J GN / YL GN / YL OR RD BK BL Main System Transformer BL/ BR BR/ A B C D Power Inlet BR BL G H BR L N BL GN / YL J4 J6 J5 EMI Filter PC Board J J J Facility Supply Voltage MA709900i A-4 Power To The Table (Rotational Base) 64 (-004 & -005) all

13 Operation & Troubleshooting Power To The Table (models w/ Rotational Base) Facility Supply Voltage With the table's power cord properly connected, facility supply voltage (5 or 0 VAC) is supplied thru the cord to the power inlet. Power Inlet / EMI Filter Board EQUIPMENT ALERT The voltage setting displayed in the power inlet window must match facility supply voltage (5 or 0 VAC). [Remove fuse holder and rotate 80 to change voltage setting]. Current flows from the power inlet thru the EMI filter board, then back thru the power inlet fuses to the rotational base PC board. 5V 0V 5V MA64600i Rotational Base PC Board Current flows thru the rotational base PC board to the main system transformer. The transformer reduces the voltage and current flows back to the rotational base PC board. Circuitry on the rotational base PC board provides the required voltage to power the rotational base brake system. Main System Transformer NOTE This transformer is protected from overload by a thermal cutout feature. This will automatically reset when the transformer cools. Line voltage (5 or 0 VAC) is supplied to the main system transformer thru the rotational base PC board. The transformer reduces the voltage and current flows back to the rotational base PC board, then to the main PC board thru two separate windings (four wires). [The black & white wires supply VAC to power circuitry for the Base & Back actuators only]. [The red & orange wires supply 4-7 VAC to power circuitry for the Tilt & Foot actuators, hand/ foot controls, power light, all limit switches, and position sensors (on Midmark models only)]. Power Indicator Light When voltage is applied to the PC board, the power light is illuminated. Main PC Board Circuitry on the PC board provides the required voltage to power all of the table's components: hand/foot controls, actuators, limit switches, and position sensors. Hand / Foot Controls Circuitry on the main PC board supplies 8-0 VAC to the hand / foot control connection ports. The reduced voltage is supplied to the main PC board thru the rotational base PC board. 64 (-004 & -005) all Power To The Table (Rotational Base) Rev. 7/6/ A-5

14 Operation & Troubleshooting Power to the Table - continued Refer To: Primary Fuses... B- Main System Transformer... B-9 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Power Light: OFF Problem: No functions will operate - and Power light is OFF. nd Voltage setting Must match facility supply voltage (5 / 0 V). 5V 5th Main PC Board If the transformer is OK, replace main PC board. Refer to: Section B - Main PC Board Primary Fuses rd Refer to: Section B - Primary Fuses Faclity Supply Voltage st Check power cord connections. Check facility circuit breaker. MA755900i 4th Main System Transformer Check all wire connections between power inlet & main PC board. If connections are OK, test transformer. (Standard Base shown) Refer to: Section B - Main System Transformer Models w/rotational Base only: If there is no power to the main system transformer... Rotational Base PC Board / EMI Filter Board Check all wire connections between rotational base PC board & the transformer. If connections are OK, perform EMI Filter Board Test. Refer to: Section B - Rotational Base Brake System A-6 Power To The Table Rev. 9/05

15 Power to the Table - continued Operation & Troubleshooting Problem: No functions will operate - and Power light is ON. Note: The cord connector is keyed and must be oriented properly to connect. Tighten lockig ring to secure connector. st Hand / Foot Controls Check cords for damage / proper connection. Locking Check both connection ports on table. Ring Refer to: Section B - Hand & Foot Controls Loose / Damaged Wire Connections (between connection ports & PC board) rd Refer To: Hand & Foot Controls... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Power Light: ON 4th Check for error code(s) Refer to: Section B - Main PC Board Position "4" Button Programmable Models only: Press "4" button on hand control for five seconds, then try functions again... If table functions operate, go to Section B, Main PC Board (Hand/Foot Control Lockout Feature) nd If table functions still will not move, go to next check. (Standard Base shown) MA756000i Power To The Table Rev. 9/05 A-7

16 Operation & Troubleshooting Base UP / DOWN Function This illustration shows only the components that affect the Base UP / DOWN function. Refer to the following page for a detailed description of Base UP / DOWN operation. Base Actuator BK Hand Control Foot Control Troubleshooting [Base Up / Down Function] Problem No Base UP or DOWN... A-0 No Base UP (DOWN - OK)... A- No Base DOWN (UP - OK)... A- Base Drifts Down... A- Noisy Operation... A- Moves Slowly / Will Not Lift Patient... A-4 Up and/or Down Function Moves Briefly, Then Stops... A-5 Headrest and/or Foot Extension Collides w/floor... A-8 BK BK Choke J J5 BK J J J4 J5 Main System Transformer J6 J7 J8 P9 J9 Main PC Board [Black & white wires supply VAC to power circuitry for the Base & Back actuators] Note: P0 J0 J J J J4 MA646400i P P On models w/ rotational base, the Main System Transformer connections are supplied thru the Rotational Base PC Board (not shown). OR Only the wires that affect the Base Function are shown. YL Power Light RD BN BK GN GN If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. COM NC NO COM NC NO Base Sensor Base Up Limit Switch Base Down Limit Switch A-8 Base Up / Down

17 Base UP / DOWN Function Base Up Operation Operation & Troubleshooting Base Down Operation Is There Power To The Table? When voltage is present at the PC board, the power light is illuminated. [Refer to 'Power To The Table' (page A-), for description of current flow to the PC board]. Power To Foot / Hand Controls Circuitry on the PC board supplies 8-0 VAC to the hand / foot control connection ports. When the Base Up function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the base actuator motor. The actuator motor runs and raises the table. NOTE The PC board continuously monitors the Base Up limit switch and the Base position sensor. If the Base Up limit switch is tripped (open), the Base Up function will not operate. If the Base position sensor detects that the table has reached its upper limit, the Base Up function will not operate. Actuator Motor runs until:. Hand / foot control button is released.. Base Up limit switch is tripped.. Emergency Stop button is pressed. 4. Position Sensor detects upper limit. 5. Overcurrent protection tripped. 6. Software time-out limit is reached (approx. 5 seconds). When the Base Down function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 40 VDC to the base actuator motor. The actuator motor runs and lowers the table. NOTE The PC board continuously monitors the Base Down limit switch and the Base position sensor. If the Base Down limit switch is tripped (open), the Base Down function will not operate. If the Base position sensor detects that the table is in a potential "crash position", or that the base has reached its lower limit, the Base Down function will not operate*. Actuator Motor runs until:. Hand / foot control button is released.. Base Down limit switch is tripped.. Emergency Stop button is pressed. 4. Crash Avoidance System activated*. 5. Position Sensor detects lower limit. 6. Overcurrent protection tripped. 7. Software time-out limit is reached (approx. 5 seconds). *Note: Refer to Section A: Crash Avoidance System for a detailed description of "crash position", and the table functions that are disabled. Base Up / Down Base Up / Down A-9

18 Operation & Troubleshooting Base Up / Down Function - continued Refer To: Hand & Foot Controls... B- Base Actuator / Limit Switches... B-6 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Problem: No Base Up or Base Down st Loose / Damaged Wire Connections (Base Actuator, Base Up/Down Limit Switches, hand/foot control ports, black & white wires between main system transformer & PC board) Main PC Board 4th Refer to: Section B - Main PC Board MA756400i nd Hand / Foot Control Refer to: Section B - Hand & Foot Controls rd Base Actuator Refer to: Section B - Base Actuator / Limit Switches A-0 Base Up / Down

19 Base Up / Down Function - continued Problem: No Base Up. [Base Down - OK] -or No Base Down. [Base Up - OK] Attention: If Base Down is inoperable, move the other chair functions to the positions listed below: Back / Foot: full UP Tilt: full DOWN If Base Down function becomes operable, refer to: Section A - Crash Avoidance System Operation & Troubleshooting Refer To: Crash Avoidance System... A-8 Hand & Foot Controls... B- Base Actuator / Limit Switches... B-6 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Loose / Damaged Wire Connections (Hand/Foot Control & Base Up / Down Limit Switches) Main PC Board 5th Refer to: Section B - Main PC Board nd Base Up/Down Limit Switches Refer to: Section B - Base Actuator / Limit Switches MA75600i rd Hand / Foot Control Refer to: Section B - Hand & Foot Controls 4th Base Actuator Refer to: Section B - Base Actuator / Limit Switches Base Up / Down A-

20 Operation & Troubleshooting Refer To: Base Actuator / Limit Switches... B-6 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Base Up / Down Function - continued Problem: Base drifts down. MA756700i st Base Actuator Refer to: Section B - Base Actuator / Limit Switches A- Base Up / Down

21 Base Up / Down Function - continued Operation & Troubleshooting Problem: Noisy operation. (Grinding, squeaking, etc) Clean / lubricate gas spring pivot joints Recommended lubricant: Lithium grease Refer to: Section B - Gas Springs st Refer To: Base Actuator / Limit Switches... B-6 Gas Springs... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Pivot Joints MA756800i 4th Base Actuator Refer to: Section B - Base Actuator / Limit Switches Clean / lubricate base actuator threads. Recommended lubricant: Lithium grease nd Guide Bars Wipe guide bars with a clean, dry cloth. NEVER lubricate base slides / scissor mechanism. rd Base Up / Down A-

22 Operation & Troubleshooting Base Up / Down Function - continued Refer To: General Information (Specifications)... ii Base Actuator... B-6 Gas Springs... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Did patient exceed 450 lb. weight limit? Inform staff that max. patient weight is 450 lbs. Refer to: General Information section Problem: Moves slowly - and/or Will not lift patient. st rd Gas Springs Refer to: Section B - Gas Springs nd Low voltage to table Required voltage: 5 VAC setting % VAC 0 VAC setting % VAC MA756900i 4th Base Actuator Refer to: Section B - Base Actuator / Limit Switches A-4 Base Up / Down

23 Base Up / Down Function - continued Operation & Troubleshooting Problem: Base Up and/or Base Down moves briefly, then stops ("beeps"). Attention: Before performing any of the checks on this page, move the chair functions to the positions listed below: Back / Foot: full UP Tilt: full DOWN If Base function becomes operable, refer to: Section A - Crash Avoidance System Loose / Damaged Wire Connections (Base Position Sensor, Hand/Foot Controls) nd Refer To: Crash Avoidance System... A-8 Base Actuator / Limit Switches... B-6 Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Calibrate PC Board Refer to: Section B - Main PC Board rd Base Position Sensor Refer to: Section B - Position Sensors MA757000i 4th Base Actuator Refer to: Section B - Base Actuator / Limit Switches Base Up / Down A-5

24 Operation & Troubleshooting Back UP / DOWN Function This illustration shows only the components that affect the Back UP / DOWN function. Refer to the following page for a detailed description of Back UP / DOWN operation. Back Actuator Hand Control Foot Control Troubleshooting [Back Up / Down Function] Problem No Back UP or DOWN... A-8 No Back UP (DOWN - OK)... A-9 No Back DOWN (UP - OK)... A-9 Back Drifts Down... A-0 Noisy Operation... A-0 Moves Slowly / Will Not Lift Patient... A- Up / Down Function Moves Briefly, then Stops ("beeps").. A- Headrest Collides w/floor... A-8 Choke P9 P0 J J BL J BR J4 J5 J6 J7 J8 J9 J0 J P Only the wires that affect the Back Function are shown. J5 Main PC Board J J J4 P BR BL 4 4 BK RD RD BK NC NO COM NC NO COM Back Up Limit Switch Back Down Limit Switch BK [Black & white wires supply VAC to power the Base & Back actuators] Note: Main System Transformer On models w/ rotational base, the Main System Transformer connections are supplied thru the Rotational Base PC Board (not shown). Power Light If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. VI YL GY 4 4 GY VI YL VI GY YL Back Position Sensor MA758500i A-6 Back Up / Down

25 Operation & Troubleshooting Back UP / DOWN Function Is There Power To The Table? When voltage is present at the PC board, the power light is illuminated. [Refer to 'Power To The Table' (page A-), for description of current flow to the PC board]. Power To Foot / Hand Controls Circuitry on the PC board supplies 8-0 VAC to the hand / foot control connection ports. Back Up Operation When the Back Up function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the back actuator motor. The actuator motor runs and raises the back section. NOTE The PC board continuously monitors the Back Up limit switch and the Back position sensor. If the Back Up limit switch is tripped (closed), the Back Up function will not operate. If the Back position sensor detects that the back section has reached its upper limit, the Back Up function will not operate. Actuator Motor runs until:. Hand / foot control button is released.. Back Up limit switch is tripped.. Emergency Stop button is pressed. 4. Position Sensor detects upper limit. 5. Overcurrent protection tripped. 6. Software time-out limit is reached (approx. 0 seconds). Back Down Operation Troubleshooting When the Back Down function is activated, current [Crash flows Protection thru the hand System] / foot control, back to the PC board. Circuitry on the PC Board Problem supplies approximately 44 VDC to the back actuator Headrest motor. Mechanism Collides w/floor... A-x The actuator motor runs and lowers the back section. Chair NOT in "Crash Position: Base Down, Back Down, & Tilt Up NOTE The PC Functions board continuously Will Not Move monitors... the Back A-x Down limit switch and the Back position sensor. If the Back Down limit switch is tripped (open), the Back Down function will not operate. If the Back position sensor detects that the table is in a potential "crash position", or that the back section has reached its lower limit, the Back Down function will not operate*. Actuator Motor runs until:. Hand / foot control button is released.. Back Down limit switch is tripped.. Emergency Stop button is pressed. 4. Crash Avoidance System activated*. 5. Position Sensor detects lower limit. 6. Overcurrent protection tripped. 7. Software time-out limit is reached (approx. 0 seconds). *Note: Refer to Section A: Crash Avoidance System for a detailed description of "crash position", and the table functions that are disabled. Back Up / Down A-7

26 Back Operation & Troubleshooting Go To Table Of Contents Next Back Up / Down Function - continued Problem: No Back Up or Back Down. Go To : Refer To: Hand & Foot Controls... B- Back Actuator / Limit Switches... B-0 Main PC Board... B-7 Wiring Diagrams... D- Loose / Damaged Wire Connections Exploded Views / Part Numbers... E- st (Back Actuator, Back Up/Down Limit Switches, hand/foot control ports, black & white wires between main system transformer & PC board) rd Back Actuator / Limit Switches Refer to: Section B - Back Actuator / Limit Switches Main PC Board 4th Refer to: Section B - Main PC Board Hand / Foot Control MA765800i A-8 Back Up / Down nd Refer to: Section B - Hand & Foot Controls

27 Go To Table Of Contents Back Back Up / Down Function Next Operation & Troubleshooting - continued Problem: No Back Up. [Back Down - OK] -or No Back Down. [Back Up - OK] Go To : Refer To: Crash Avoidance System... A-8 Hand & Foot Controls... B- Back Actuator / Limit Switches... B-0 Main PC Board... B-7 Attention: If Back Down is inoperable, move the other chair functions to the positions listed below: Base / Foot: full UP Tilt: full DOWN Wiring Diagrams... D- Exploded Views / Part Numbers... E- If Back Down function becomes operable, refer to: Section A - Crash Avoidance System Loose / Damaged Wire Connections st (Hand/Foot Control & Back Up / Down Limit Switches) Back Actuator / Limit Switches rd Refer to: Section B - Back Actuator / Limit Switches 4th Main PC Board Refer to: Section B - Main PC Board MA765800i Hand / Foot Control nd Refer to: Section B - Hand & Foot Controls Back Up / Down A-9

28 Operation & Troubleshooting Back Up / Down Function - continued Refer To: Back Actuator / Limit Switches... B-0 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Problem: Back drifts down.- and/or Noisy operation. (Grinding / squeaking) st Back Actuator Refer to: Section B - Back Actuator / Limit Switches MA765900i A-0 Back Up / Down

29 Back Up / Down Function - continued Operation & Troubleshooting Problem: Moves slowly - and/or Will not lift patient. Refer To: General Information (Specifications)... ii Back Actuator / Limit Switches... B-0 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Did patient exceed 450 lb. weight limit? Inform staff that max. patient weight is 450 lbs. st Refer to: General Information Section Back Actuator rd Refer to: Section B - Back Actuator / Limit Switches nd Low voltage to table Required voltage: 5 VAC setting % VAC 0 VAC setting % VAC MA766000i Back Up / Down A-

30 Operation & Troubleshooting Back Up / Down Function - continued Refer To: Crash Avoidance System... A-8 Back Actuator / Limit Switches... B-0 Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Loose / Damaged Wire Connections (Back Position Sensor, Hand/Foot Controls) nd Problem: Back Up and/or Back Down moves briefly, then stops ("beeps"). Attention: Before performing any of the checks on this page, move the chair functions to the positions listed below: Base / Foot: full UP Tilt: full DOWN If Tilt function becomes operable, refer to: Section A - Crash Avoidance System st Calibrate PC Board Refer to: Section B - Main PC Board Back Actuator 4th Refer to: Section B - Back Actuator / Limit Switches rd Back Position Sensor Refer to: Section B - Position Sensors MA76600i A- Back Up / Down

31 Operation & Troubleshooting Tilt UP / DOWN Function This illustration shows only the components that affect the Tilt UP / DOWN function. Refer to the following page for a detailed description of Tilt UP / DOWN operation. Troubleshooting [Tilt Up / Down Function] Tilt Actuator Hand Control Foot Control Only the wires that affect the Tilt Function are shown. Problem No Tilt UP or DOWN... A-5 No Tilt DOWN (UP - OK)... A-6 No Tilt UP (DOWN - OK)... A-6 Seat Drifts Down... A-7 Noisy Operation... A-7 Moves Slowly / Will Not Lift Patient... A-8 Up / Down Function Moves Briefly, Then Stops... A-9 Headrest or Foot Extension Collides w/floor... A-8 J J5 J J J4 J5 J6 5 5 BK 4 4 BK RD RD P9 P0 BR BL RD J7 J8 J9 J0 4 J 4 J P Main PC Board J J4 P If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. Power Light YL / VI YL BR YL VI VI BR YL COM NC NO [Connected to Foot Limit Switch Harness] [Connected to Back Limit Switch Harness] Tilt Down Limit Switch Tilt Position Sensor Tilt Up / Down A-

32 Operation & Troubleshooting Tilt UP / DOWN Function Is There Power To The Table? When voltage is present at the PC board, the power light is illuminated. [Refer to 'Power To The Table' (page A-), for description of current flow to the PC board]. Power To Foot / Hand Controls Circuitry on the PC board supplies 8-0 VAC to the hand / foot control connection ports. Tilt Up Operation When the Tilt Up function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the tilt actuator motor. The actuator motor runs and reclines the seat section. NOTE The PC board continuously monitors the Tilt position sensor. When the Tilt position sensor detects that the seat section has reached its upper limit, or that the table is in a potential "crash position", the Tilt Up function will not operate*. Actuator Motor runs until:. Hand / foot control button is released.. Emergency Stop button is pressed.. Crash Avoidance System activated*. 4. Position Sensor malfunction. 5. Overcurrent protection tripped. 6. Software time-out limit is reached. (approx. 0 seconds). Tilt Down Operation When the Tilt Down function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the tilt actuator motor. The actuator motor runs and brings the seat section back to a flat position. NOTE The PC board continuously monitors the Tilt Down limit switch and the Tilt position sensor. If the Tilt Down limit switch is tripped (open), the Tilt Down function will not operate. If the Tilt position sensor detects that the table is in a potential "crash position", or that the seat section has reached its lower limit, the Tilt Down function will not operate*. Actuator Motor runs until:. Hand / foot control button is released.. Tilt Down limit switch is tripped.. Emergency Stop button is pressed. 4. Crash Avoidance System activated*. 5. Position Sensor malfunction. 6. Overcurrent protection tripped. 7. Software time-out limit is reached (approx. 0 seconds). *Note: Refer to Section A: Crash Avoidance System for a detailed description of "crash position", and the table functions that are disabled. A-4 Tilt Up / Down

33 Tilt Up / Down Function - continued Operation & Troubleshooting Problem: No Tilt Up or Tilt Down. Loose / Damaged Wire Connections (Tilt Actuator, hand/foot control ports) st Refer To: Hand & Foot Controls... B- Tilt Actuator / Limit Switch... B-4 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- rd Tilt Actuator Refer to: Section B - Tilt Actuator / Limit Switch 4th Main PC Board Refer to: Section B - Main PC Board nd Hand / Foot Control Refer to: Section B - Hand & Foot Controls MA76600i Tilt Up / Down A-5

34 Operation & Troubleshooting Tilt Up / Down Function - continued Refer To: Crash Avoidance System... A-8 Hand & Foot Controls... B- Tilt Actuator / Limit Switch... B-4 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Loose / Damaged Wire Connections (Tilt Down Limit Switch, & hand/foot control ports) Problem: No Tilt Up. [Tilt Down - OK] -or No Tilt Down. [Tilt Up - OK] Attention: Before performing any of the checks on this page, move the chair functions to the positions listed below: Base / Back / Foot: full UP If Tilt function becomes operable, refer to: Section A - Crash Avoidance System rd (No Tilt Down) Tilt Down Limit Switch Refer to: Section B - Tilt Actuator / Limit Switch 4th Main PC Board Refer to: Section B - Main PC Board nd Hand / Foot Control Refer to: Section B - Hand & Foot Controls rd (No Tilt Up) Tilt Position Sensor Refer to: Section B - Position Sensors MA76600i A-6 Tilt Up / Down Rev. /09

35 Tilt Up / Down Function - continued Problem: Seat drifts down. -or Noisy operation. (Grinding / squeaking) Operation & Troubleshooting Refer To: Tilt Actuator / Limit Switch... B-4 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Tilt Actuator Refer to: Section B - Tilt Actuator / Limit Switch st MA76600i Tilt Up / Down A-7

36 Operation & Troubleshooting Refer To: General Information (Specifications)... ii Tilt Actuator / Limit Switch... B-4 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Tilt Up / Down Function - continued Problem: Moves slowly - and/or Will not lift patient. Did patient exceed 450 lb. weight limit? Inform staff that max. patient weight is 450 lbs. st Refer to: General Information Section rd Tilt Actuator Refer to: Section B - Tilt Actuator / Limit Switch nd Low voltage to table Required voltage: 5 VAC setting % VAC 0 VAC setting % VAC MA766400i A-8 Tilt Up / Down

37 Tilt Up / Down Function - continued Operation & Troubleshooting Problem: Tilt Up and/or Tilt Down moves briefly, then stops ("beeps"). Refer To: Crash Avoidance System... A-8 Attention: Before performing any of the checks on this page, move the chair functions to the positions listed below: Base / Back / Foot: all the way up If Tilt function becomes operable, refer to: Section A - Crash Avoidance System Tilt Actuator Refer to: Section B - Tilt Actuator / Limit Switch 4th Tilt Actuator / Limit Switch... B-4 Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Calibrate PC Board Refer to: Section B - Main PC Board Loose / Damaged Wire Connections (Tilt Position Sensor, Hand/Foot Controls) nd rd Tilt Position Sensor Refer to: Section B - Position Sensors MA766500i Tilt Up / Down A-9

38 Operation & Troubleshooting Foot UP / DOWN Function This illustration shows only the components that affect the Foot UP / DOWN function. Refer to the following page for a detailed description of Foot UP / DOWN operation. Foot Actuator Hand Control Foot Control Only the wires that affect the Foot Function are shown. Troubleshooting [Foot Up / Down Function] Problem No Foot UP or DOWN... A- No Foot UP (DOWN - OK)... A- No Foot DOWN (UP - OK) "beeps"... A- Foot Drifts Down... A-4 Noisy Operation... A-4 Moves Slowly... A-5 Up / Down moves briefly, then stops & "beeps"... A-6 Foot moves past Max / Min position... A-7 Foot section collides w/floor... A-8 BK / NC NO COM Foot Extension Switch 5 J J5 J J J4 BL J5 J6 BR J7 J8 P9 J9 Main PC Board P0 J0 J J J J4 If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. P P Power Light OR GN GN / VI VI YL YL COM Foot Up RD Limit Switch 4 4 [Connected to Tilt Limit Switch Harness] 4 RD BK 4 Foot 4 GN VI YL YL GN VI BK NC NO COM NC NO Foot Down Limit Switch [Connected to Back Limit Switch Harness] Position Sensor 4 [Connected to Tilt / Back Position Sensor Harness] MA758800i A-0 Foot Up / Down Rev. //6

39 Operation & Troubleshooting Foot UP / DOWN Function Is There Power To The Table? When voltage is present at the PC board, the power light is illuminated. [Refer to 'Power To The Table' (page A-), for description of current flow to the PC board]. Power To Foot / Hand Controls Circuitry on the PC board supplies 8-0 VAC to the hand / foot control connection ports. Foot Up Operation When the Foot Up function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the foot actuator motor. The actuator motor runs and raises the foot section. NOTE The PC board continuously monitors the Foot Up Limit Switch and the Foot position sensor. If the Foot Up Limit Switch is tripped (open), the Foot Up function will not operate. If the Foot position sensor detects that the foot section has reached its upper limit, the Foot Up function will not operate. Foot Down Operation When the Foot Down function is activated, current flows thru the hand / foot control, back to the PC board. Circuitry on the PC Board supplies approximately 48 VDC to the foot actuator motor. The actuator motor runs and lowers the foot section. NOTE The PC board continuously monitors the Foot Down limit switch, the Foot position sensor, and the Foot Extension switch. If the Foot Down limit switch is tripped (closed), the Foot Down function will not operate. If the Foot position sensor detects that the foot section has reached its lower limit, the Foot Down function will not operate. *Note: Actuator Motor runs until:. Hand / foot control button is released.. Foot Up limit switch is tripped.. Emergency Stop button is pressed. 4. Position Sensor malfunction. 5. Overcurrent protection tripped. 6. Software time-out limit is reached. (approx. 0 seconds). Refer to Section A: Crash Avoidance System for a detailed description of "crash position", and the table functions that are disabled. If the Foot Extension switch is not tripped, and the Foot position sensor detects that the table is in a potential "crash position", the Foot Down function will not operate*. Actuator Motor runs until:. Hand / foot control button is released.. Foot Down limit switch is tripped.. Emergency Stop button is pressed. 4. Crash Avoidance System activated*. 5. Position Sensor malfunction. 6. Overcurrent protection tripped. 7. Software time-out limit is reached (approx. 0 seconds). Foot Up / Down A-

40 Operation & Troubleshooting Foot Up / Down Function - continued Refer To: Hand & Foot Controls... B- Foot Actuator / Limit Switches... B-9 Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Loose / Damaged Wire Connections (Hand/Foot Control, Foot Actuator, & Foot Up/Down Limit Switches) Problem: No Foot Up or Foot Down. rd Foot Actuator Refer to: Section B - Foot Actuator 4th Main PC Board Refer to: Section B - Main PC Board nd Hand / Foot Control Refer to: Section B - Hand & Foot Controls MA77700i A- Foot Up / Down

41 Foot Up / Down Function - continued Operation & Troubleshooting Problem: No Foot Up. [Foot Down - OK] -or No Foot Down. [Foot Up - OK] "beeps" Attention: If Foot Down is inoperable, move the foot extension to its stowed position, and move the other chair functions to the positions listed below: Base / Back: full UP Tilt: full DOWN If Foot Down function becomes operable, refer to: Section A - Crash Avoidance System st Loose / Damaged Wire Connections Hand/Foot Control, Foot Up /Down Limit Switches, Foot Extension Limit Switch Refer To: Crash Avoidance System... A-8 Foot Actuator / Limit Switches... B-9 Hand & Foot Controls... B- Main PC Board... B-7 Foot Extension / Limit Switch... B-4 Wiring Diagrams... D- Exploded Views / Part Numbers... E- 5th Foot Actuator / Limit Switches Refer to: Section B - Foot Actuator / Limit Switches nd Switch affects DOWN function only Foot Extension Limit Switch Refer to: Section B - Foot Extension / Limit Switch 4th Main PC Board Refer to: Section B - Main PC Board rd Hand / Foot Control Refer to: Section B - Hand & Foot Controls MA766600i Foot Up / Down A- Rev. /05

42 Operation & Troubleshooting Refer To: Foot Actuator / Limit Switches... B-9 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Foot Up / Down Function - continued Problem: Foot drifts down. -or Noisy operation. (Grinding, / squeaking) Foot Actuator Refer to: Section B - Foot Actuator st MA766700i A-4 Foot Up / Down

43 Foot Up / Down Function - continued Operation & Troubleshooting Problem: Moves slowly - and/or Will not lift patient. Refer To: General Information (Specifications)... ii Foot Actuator / Limit Switches... B-9 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Did patient exceed 450 lb. weight limit? Inform staff that max. patient weight is 450 lbs. st Refer to: General Information Section rd Foot Actuator Refer to: Section B - Foot Actuator nd Low voltage to table Required voltage: 5 VAC setting % VAC 0 VAC setting % VAC MA766800i Foot Up / Down A-5

44 Operation & Troubleshooting Refer To: Foot Actuator / Limit Switches... B-9 Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Foot Up / Down Function - continued Problem: Foot Up and/or Foot Down moves briefly, then stops ("beeps"). Attention: If only the Foot Down function is inoperable, move the chair functions to the positions listed below: Base / Back: Tilt: all the way up all the way down If Foot Down function becomes operable, refer to: Section A - Crash Avoidance System Loose / Damaged Wire Connections (Foot Position Sensor, Hand/Foot Controls, Foot limit switches, Foot actuator) nd Foot Actuator Refer to: Section B - Foot Actuator 4th st Calibrate PC Board Refer to: Section B - Main PC Board rd Foot Position Sensor Refer to: Section B - Position Sensors MA766900i A-6 Foot Up / Down

45 Foot Up / Down Function - continued Problem: Foot moves past Max. / Min. position. Operation & Troubleshooting Refer To: Foot Actuator / Limit Switches... B-9 Exploded Views / Part Numbers... E- st Adjust Foot Limit Switch Bracket Loosen two bracket screws & reposition bracket assembly. Check for proper operation. Repeat as necessary. Bracket Screws MA7700i Foot Up / Down A-7

46 Operation & Troubleshooting Crash Avoidance System The Crash Avoidance System prevents damage to the chair by disabling certain functions if a potential crash position is detected. This illustration shows only the components that are monitored by the Crash Avoidance System. Refer to the following page for a detailed description of "crash" position and how the system functions. Troubleshooting [Crash Avoidance System] Problem One or more functions not working properly (Chair not in Crash Position): Base Down, Back Down, Tilt Up/Down, Foot Down... A-40 J J5 J J Only the wires that affect the Crash Avoidance System are shown. J4 J5 J6 J7 J8 J9 Main PC Board J0 J J J J4 MA649400i If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. P P P Power Light RD BN BK GY YL / BK VI YL GN / VI YL Base Position Sensor 4 GN VI 4 GY BR YL YL VI BK / VI NC NO COM YL GN VI GY YL VI BR YL Foot Extension Switch [Connected to Tilt Limit Switch Harness] [Connected to Foot Limit Switch Harness] [Connected to Back Limit Switch Harness] Foot Position Sensor* Tilt Position Sensor Back Position Sensor A-8 Crash Avoidance System

47 Operation & Troubleshooting Crash Avoidance System When Are Functions Disabled? The main PC board continuously monitors the all four position sensors, as well as the foot extension switch. Based on the position sensor readings, and the status of the foot extension switch, circuitry on the PC Board estimates the position of the headrest and the foot extension. If the estimated position of the headrest indicates a potential collision with the floor, the Base Down, Tilt Up, and/or Back Down function(s) are disabled. If the estimated position of the foot extension indicates a potential collision with the floor or the chair shrouds, the Base Down, Tilt Down, and/or Foot Down function(s) are disabled. What Is Crash Position? The chair is considered to be in a potential crash position when: A. The Base, Back, and Tilt position sensors indicate that the headrest mechanism is approximately in. (5 cm) from the floor*. B. The Foot Extension switch is not tripped (indicating the foot extension is not in the stowed position), and the Base, Tilt, and Foot position sensors indicate that the foot extension cannot be moved to the stowed position without contacting the floor or chair shrouds. * This measurement is an estimate based on "normal" headrest position (shown). The distance from the floor will vary with the headrest position. When Are Functions Restored? Functionality is restored when one or more of the axis are moved out of the potential crash position. MA76800i Crash Position A: Potential Headrest Collision Crash Position B: Potential Foot Extension Collision One or more of the following functions may be disabled: Base Down / Tilt Up / Back Down One or more of the following functions may be disabled: Base Down / Tilt Down / Foot Down Crash Avoidance System A-9

48 Operation & Troubleshooting Refer To: Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Crash Avoidance System - continued Problem: One or more of the following functions not working properly. Base Down Back Down Tilt Up/Down Foot Down (Chair is not in "Crash Position") Attention: Before performing any of the checks on this page, move the foot extension to its stowed position. Position Sensors [Base / Back / Tilt / Foot] Refer to: Section B - Position Sensors rd Note: One (or more) malfunctioning sensor may cause this problem to occur. Foot Position Sensor Back Position Sensor st Calibrate PC Board Refer to: Section B - Main PC Board Tilt Position Sensor Loose / Damaged Wire Connections (Base / Tilt / Back Position Sensor wires) nd Base Position Sensor MA767000i A-40 Crash Avoidance System

49 Operation & Troubleshooting Position Programming The programming feature allows the user to store up to four frequently used table positions. This illustration shows only the components that affect the position programming. Refer to the following page for a detailed description of this feature. Hand Control Troubleshooting [Position Programming] Problem Positions cannot be programmed... A-4 When Position Button (,,,4) is pressed: Table does not move... A-4 Table moves to wrong position... A-4 Foot Control Only the wires that affect the position programming are shown. Base Actuator Back Actuator Foot Actuator Tilt Actuator If actuator(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) P9 P0 GN / VI YL 4 4 GN VI YL YL GN VI Foot Position Sensor J J J J4 J5 J6 J7 J8 J9 Main PC Board J0 J J J J4 P P P GY YL / VI YL 4 4 GY BR YL VI VI BR YL VI GY YL If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. Tilt Position Sensor Back Position Sensor J5 Power Light RD BN BK Base Position Sensor MA77900i 64 (-00 & -005) all Position Programming A-4

50 Operation & Troubleshooting Position Programming Programming a Table Position The four position sensors continuously monitor the position of each axis (Base, Back, Tilt, Foot). This information is transmitted to the PC Board. When a table position is properly programmed into the PC board's memory, the position of each axis is recorded based on the readings from the four sensors. To program a table position... A. Move the table to desired position. B. Press the Program button. (you will hear a single beep ) C. Press the desired Position button (,,, or 4). (three beeps ) Tip: You must press the Position button within 5 seconds of pressing the Program button. Recalling a Programmed Position When a programmed position is recalled, the PC board activates the required functions (all at the same time) until the readings from the four position sensors match those of the recorded position. Program Stop Position Buttons Position Buttons Program Stop To recall a programmed position... Press and hold the desired Position button (,,, or 4). Position Buttons A-4 Position Programming 64 (-00 & -005) all

51 Position Programming - continued Problem: Positions cannot be programmed. - or When position button is pressed, table does not move, or moves to wrong position. st Reprogram the desired position. (see previous page) Did you hear all of the "beeps" indicated in the programming procedure? If NO, go to [All manual functions - OK] Note: If manual function(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) nd If YES, go to rd nd Hand / Foot Controls Refer to: Section B - Hand & Foot Controls. Operation & Troubleshooting Refer To: Hand & Foot Controls... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- rd Calibrate PC Board Refer to: Section B - Main PC Board 4th Main PC Board Refer to: Section B - Main PC Board MA75700i 64 (-00 & -005) all Position Programming A-4

52 Operation & Troubleshooting "Home" Function The Home function automatically lowers the table base to Home Position "A" [ in. (58.4 cm)] or Home Position "B" [9 in. (48. cm)]. This illustration shows only the components that affect the Home Function. Refer to the following page for a detailed description of this feature. Hand Control Troubleshooting ["Home" Function] Problem When Home button is pressed, nothing happens... A-46 Table does not stop at correct height: Home Position "A" ( in.)... A-47 Home Position "B" (9 in.)... A-48 Foot Control Base Actuator If actuator is not working properly, refer to the Base Up /Down section for troubleshooting. P9 P0 J J J J4 J5 J6 J7 J8 J9 J0 J Main PC Board J J J4 P P Power Light If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. Only the wires that affect the Home Function are shown. J5 MA649800i RD BN BK GN Base Position Sensor [Only affects Home Position "A"] OR GN [Base Up Limit Switch shown for reference only. It does not affect the Home Function] COM NC NO Base Down Limit Switch [Only affects Home Position "B"] A-44 "Home" Function

53 Operation & Troubleshooting "Home" Function Home Position "A" [ in. (58.4 cm)] When the Home button is pressed then immediately released, the Base Down function is activated. When the Base Position Sensor indicates that table has reached in., the PC Board stops the table. To go to Home Position "A" [ in. (58.4 cm)]... Press, then immediately release the Home button. Home Home Position "B" [9 in. (48. cm)] When the Home button is pressed and held for approximately seconds a short "beep" is emitted, and the Base Down function is activated. Home The table stops when the Base Down Limit Switch is tripped at approx. 9 in. Home Position "A" [ in (58.4 cm)] Home Position "B" [9 in (48. cm)] To go to Home Position "B" [9 in. (48. cm)]... Press and hold the Home button until you hear a single beep (approx. seconds). MA767900i "Home" Function A-45

54 Operation & Troubleshooting Refer To: Hand & Foot Controls... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- "Home" Function - continued Problem: When Home button is pressed, nothing happens. [All manual functions - OK] Note: If manual function(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) st Hand / Foot Controls Refer to: Section B - Hand & Foot Controls. nd Check Error Code(s) Refer to: Section B - Main PC Board MA75700i A-46 "Home" Function

55 "Home" Function - continued Operation & Troubleshooting Problem: Home position "A" does not stop at in. (58 cm). Home position "B" - OK. [All manual functions - OK] Note: If manual function(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) Refer To: Position Sensors... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- st Calibrate Main PC Board Refer to: Section B - Main PC Board nd Base Position Sensor Refer to: Section B - Position Sensors MA75700i "Home" Function A-47

56 Operation & Troubleshooting "Home" Function - continued Refer To: Base Actuator / Limit Switches... B-6 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Loose / Damaged Wire Connections (Base Down Limit Switch) st Problem: Home position "B" does not stop at 9 in. (48 cm). Home position "A" - OK. [All manual functions - OK] Note: If manual function(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) nd Base Down Limit Switch Refer to: Section B - Base Actuator / Limit Switches MA75700i A-48 "Home" Function

57 Operation & Troubleshooting QuickChair Function (w/ Foot Control Only) This function activates the Base Down, Tilt Down, Foot Down, and Back Up functions at the same time to move the table into "chair position". This illustration shows only the components that affect the QuickChair Function. Refer to the following page for a detailed description of this feature. Only the wires that affect the QickChair Function are shown. Troubleshooting [QuickChair Function] Problem When QuickChair button is pressed & held, the table does not move... A-5 Base Actuator Back Actuator Foot Actuator Tilt Actuator Foot Control BK BK BK COM NC NO Tilt Down Limit Switch If actuator(s) are not working properly, refer to that section for troubleshooting (ex. Base Up / Down). J J J J4 J5 J6 J7 J8 J5 J9 Main PC Board P0 J0 J J J J4 P P P BL OR BK BK BK BK COM NC NO COM NC COM NC [Foot Up Limit Switch does not affect this function] Foot Down Limit Switch Back Up Limit Switch [Back Down Limit Switch does not affect this function] Power Light If Power Light is ON, proper voltage is present at PC Board. If Power Light is OFF, refer to A- for troubleshooting. OR GN GN COM NC NO [Base Up Limit Switch does not affect this function] Base Down Limit Switch MA75900i QuickChair Function A-49

58 Operation & Troubleshooting QuickChair Function What is "Chair Position"? Base: all the way down Back: all the way up Tilt: all the way down Foot: all the way down To activate the QuickChair function... Press and hold the Chair Position button. How it works... When the QuickChair button is pressed and held, the PC Board activates all of the following functions: Function Base Down Back Up Tilt Down Foot Down Runs until... Base Down limit switch is tripped Back Up limit switch is tripped Tilt Down limit switch is tripped Foot Down limit switch is tripped QuickChair Button MA768000i A-50 QuickChair Function

59 QuickChair Function - continued Operation & Troubleshooting Problem: When QuickChair button is pressed & held, the table does not move. [All manual functions - OK] Note: If manual function(s) are not working properly, refer to that section for troubleshooting. (ex. Base Up / Down) Refer To: Hand Foot Controls... B- Main PC Board... B-7 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Is table already in Chair Position? Loose / Damaged Wire Connections (Foot control to PC Board) rd Foot Control Refer to: Section B - Hand & Foot Controls st nd Main PC Board 4th Refer to: Section B - Main PC Board MA75700i Quick-Chair Function A-5

60 Operation & Troubleshooting Foot Extension This illustration highlights the mechanical components of the foot extension latch mechanism. Troubleshooting [Foot Extension] Problem Foot extension will not lock in place... A-5 Foot extension will not release... A-5 Equipment Alert The weight capacity of the foot extension is 0 lbs (54.4kg). Exceeding this limit may result in equipment damage. Receiver Block Release Handle Locking Pin Latch Mechanism When either foot extension release handle is pressed, the associated linkage retracts the locking pin. When the locking pin disengages the receiver block, the foot extension will move freely. When the foot extension is moved to either of the two locking positions (extended / stowed), spring pressure engages the locking pin into the receiver block. Spring Foot Extension Limit Switch The foot extension limit switch does not affect the mechanical function of the foot extension. MA770900i A faulty switch may affect any / all of the following chair functions: Base Down, Tilt Down, Foot Down A-5 Foot Extension

61 Foot Extension - continued Operation & Troubleshooting Problem: Foot extension will not lock in place. - or Foot extension will not release. Refer To: Foot Extension & Limit Switch... B-4 Exploded Views / Part Numbers... E-7 st Inspect Latch Mechanism Remove any debris, replace damaged / faulty components Refer to: Section B - Foot Extension & Limit Switch Release Handle Equipment Alert The weight capacity of the foot extension is 0 lbs (54 kg). Exceeding this limit may result in equipment damage. Locking Pin Receiver Block Spring MA7700i Foot Extension A-5

62 Operation & Troubleshooting Chair Receptacles (optional - 5 VAC models only) This illustration shows only the components that affect the chair receptacle. Troubleshooting [Chair Receptacles] Problem No power at receptacles... A-55 Only the wires that affect the chair receptacles are shown. BR / BR / Facility Supply Voltage With the chair power cord properly connected, facility supply voltage (5 VAC) is supplied thru the cord to the power inlet. Power Inlet F F L N GN / YL A B C D G H BR BL BR BL GN/ YL BL / Isolation Transformer BL / Facility Supply Voltage GN/ YL Power Inlet Equipment Alert The voltage setting displayed in the power inlet window must match facility supply voltage (5 VAC). [Remove fuse holder and rotate 80 to change voltage setting]. Current flows thru two fuses in the power inlet, to the isolation transformer. Isolation Transformer Note The isolation transformer separates the receptacles from the rest of the chair's electrical system. This transformer is protected from overload by a thermal cutout feature. It will automatically reset when the transformer cools. The isolation transformer provides 5 VAC to each of the chair receptacles. A-54 Chair Receptacles 64 (-00) all

63 Chair Receptacles - continued Problem: No power at receptacle(s). Operation & Troubleshooting Refer To: Isolation Transformer / Chair Receptacle... B-8 Wiring Diagrams... D- Exploded Views / Part Numbers... E- Is there power to the chair? st MA757400i Loose / Damaged Wire Connections (between power inlet & receptacles) nd Isolation Transformer / Receptacle rd Refer to: Section B - Isolation Transformer / Chair Receptacle 64 (-00) all Chair Receptacles A-55

64 Operation & Troubleshooting Rotational Base Brake System (optional) This illustration shows only the components that affect the Rotational Base Brake System. A detailed description of current flow during this function also appears below. Brake Lever Electro-magnet Brake Pad Assembly Troubleshooting [Rotational Base Brake System] Problem Base rotation will not unlock... A-57 Base rotation will not lock... A-58 Base "wobbles" when locked... A-59 Base grinds when rotating... A-59 Brake Disk Brake Springs () MA767400i Base Rotation LOCKED: The two brake springs press upward on the brake lever. This pivots the brake lever so that pressure is applied to the brake pad assembly. This prevents the brake disk from rotating. To unlock base rotation: Press & release either brake pedal. Base Rotation UNLOCKED: The rotational base PC board supplies - 6 VAC to the two normally closed brake switches. When either brake pedal is pressed & released, the corresponding brake switch opens. When the open switch is detected, the PC board supplies approximately 5-0 VAC to the electro-magnet thru the F fuse. When voltage is applied to the electro-magnet, the magnet's pull overpowers the brake springs. This removes pressure from the brake pad asembly allowing the brake disk to rotate. To lock base rotation: Press & release either brake pedal. J0 J9 Fuse (F) Rotational Base PC Board Rotational Brake Switches J7 J (-6 VAC) J5 J6 J J4 J COM NC NO [Right] COM NC NO [Left] Electro-magnet (5-0 VAC) MA708900i Note: Base automatically locks in place after minutes. A-56 Rotational Base Brake System 64 (-004 & -005) all

65 Rotational Base Brake System - continued Problem: Base rotation will not unlock. Check both brake pedals If one brake pedal unlocks the base, go to: If neither pedal unlocks the base, go to: nd rd st Operation & Troubleshooting Refer To: Rotational Base Brake System... B-4 Wiring Diagrams... D- 5th Check Rotational Base PC Board Fuse If fuse is OK, perform Rotational Brake Electrical Test Refer to: Section B - Rotational Base Brake System nd Faulty brake pedal switch Check connections / replace switch if necessary. Refer to: Section B - Rotational Base Brake System rd Check the electro-magnet While holding a screwdriver on the brake lever, press & release the brake pedal. 4th Perform Magnet Position Adjustment Refer to: Section B - Rotational Base Brake System MA76700i Can you feel the electro-magnet energize? If YES, go to: If NO, go to: 4th 5th 64 (-004 & -005) all Rotational Base Brake System A-57

66 Operation & Troubleshooting Refer To: Rotational Base Brake System... B-4 Wiring Diagrams... D- Unplug table power cord If base rotation locks, go to: If base does not lock, go to: nd rd st Rotational Base Brake System - continued Problem: Base rotation will not lock. Perform Rotational Brake Electrical Test Refer to: Section B - Rotational Base Brake System nd Inspect mechanical brake components. MA76700i Refer to: Section B - Rotational Base Brake System (Brake Lever Removal) rd A-58 Rotational Base Brake System 64 (-004 & -005) all

67 Rotational Base Brake System - continued Problem: Base "wobbles" when locked. - and / or Base makes grinding noise when rotating Operation & Troubleshooting Refer To: Refer Rotational To: Base Brake System... B-4 Rotation Wiring Diagrams Bearing Repair B-xx D- st Debris between upper & lower castings Without separating the base castings, remove any debris. Loose hub screws Tighten four screws securing the upper & lower castings. nd Hub Screw For access instructions refer to: Section B - Rotational Base Brake System (Separating Upper & Lower Base Castings) rd Inspect rotation bearings / brake disc Inspect needle bearing & brake disc for damage, debris, etc. For access instructions refer to: Section B - Rotational Base Brake System (Separating Upper & Lower Base Castings) Re 64 (-004 & -005) all Rotational Base Brake System Rev. 6//6 A-59

68 Component Section BTesting & Repair Component Testing & Repair Components Primary Fuses... B- Hand / Foot Control... B- Base Actuator / Limit Switches... B-6 Back Actuator / Limit Switches... B-0 Tilt Actuator / Limit Switch... B-4 Foot Actuator / Limit Switches... B-9 Foot Extension / Limit Switch... B-4 Gas Springs... B-7 Isolation Transformer / Table Receptacles... B-8 Main System Transformer... B-9 Position Sensors... B- Main PC Board... B-7 Rotational Base Brake System... B-4 B-

69 Component Testing & Repair Primary Fuses Location / Voltage Setting 5V 5V Equipment Alert When replacing fuses, rotate fuse holder so that the correct voltage setting appears in window. Voltage setting must match facility supply voltage. Primary Fuses Location / Voltage Setting...B- Wiring Diagrams... D- Fuse Rating...6.A, 50V Type T, 5 x 0mm Part Number Incorrect setting will result in damage to the table. If Power Indicator Light is... OFF: No power to table (check the fuses) ON: Table has power (fuses - OK) 0V5V MA76800i B- Primary Fuses Rev. 7/6/

70 Component Testing & Repair Hand & Foot Controls Isolating a Malfunction Hand & Foot Controls Isolating a Malfunction... B- Hand / Foot Control Test... B-4 Control Cord Continuity Test... B-5 Wiring Diagrams... D- Exploded View / Part Numbers: Foot Control (Linear-style)... E- Foot Control (Disc-style)... E-4 Hand Control... E-5 To isolate a malfunction... Plug the hand / foot control into the other connection port. Does the hand / foot control work properly? If YES, replace the wire harness at the malfunctioning connection port. (Refer to Wiring Diagrams for part number). If NO, perform the Hand / Foot Control Test. Note: The cord connector is keyed and must be oriented properly to connect. Tighten locking ring to secure connection. Locking Ring Connection Port (head-end) Connection Port (foot-end) MA76800i Hand & Foot Controls B-

71 Component Testing & Repair Hand & Foot Controls - continued Hand / Foot Control Test Refer To: Control Cord Test... B-5 Access Procedures (Cover Removal)... C- Hand/Foot Control Test Step : Unplug table (to reset PC Board). Plug table back in. J9 Hand/Foot Control Test Step : One at a time, press & hold each button on the hand / foot control. Do you hear"beeps" each time a button is pressed? J If YES, that button is functioning properly. If NO, perform the Control Cord Test. MA65000i O N Hand/Foot Control Test Step : Move both switches on MODE SELECT block to ON. MODE SELECT ATTENTION! To return to normal operation... A. Move MODE SELECT block switches back to original position. B. Unplug table (to reset board). C. Plug table back in. B-4 Hand & Foot Controls

72 Component Testing & Repair Hand & Foot Controls - continued Meter Reading Status Required Action Control Cord Test Attention The hand & foot control cords are interchangeable. If a working cord is available, switch the cords to test. If one is not available, perform the Continuity Test. pins less than 00 ANY pin(s) OL Cord - OK [Replace touch pad] Replace control cord. Continuity Test Step : Disconnect cord from hand / foot control. [For detailed illustration of assemblies, refer to Section E: Hand Control / Foot Control] Continuity Test Step : Place one meter probe on Pin # of round connector. Place other meter probe on Pin # of flat connector. Check meter reading. Continuity Test Step : Repeat Step for connector Pins # thru 8. MA65400i Hand & Foot Controls B-5

73 Component Testing & Repair Base Actuator / Limit Switches Isolating a Malfunction This illustration shows the base limit switches and the three seviceable components of the base actuator. Use the table below to isolate the malfunction. Problem Motor runs, but makes grinding noise. Motor runs, but table does not move. Motor does not run. Required Action Clean / lube actuator threads. Replace actuator if necessary*. Inspect / replace motor coupler*. Perform Limit Switch Test - If OK... Perform Actuator Motor Test Base Actuator Isolating a Malfunction... B-6 Limit Switch Test... B-7 Actuator Motor Test... B-8 PC Board Test... B-9 Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers... E-9 File Name Base Actuator / Motor Replacement *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Actuator Motor Ball Screw Assembly (Lube threads w/lithium grease) Motor Coupler Base Limit Switches Up Down MA768500i B-6 Base Actuator / Limit Switches

74 Component Testing & Repair Base Actuator / Limit Switches - continued Limit Switch / Harness Test Step : Disconnect harness from J on main PC board. Limit Switch Continuity Test Refer To: Actuator Motor Test... B-8 J9 Step : Place one meter probe on the common (green). Step : Tag / disconnect wires from switch. MA795i J Base Down Switch (orange) Common (green) Base Up Switch (yellow) Step : Place meter probes on COM and NC terminals. Note: Check switch 'tripped' and 'untripped'. Step : Place other meter probe on the wire corresponding to the desired switch (see ilustration). Note: Check switch "tripped" & "untripped". J With switch "untripped"... Meter Reading Req'd Action OL Perform Limit Switch Continuity Test less than 0 Limit switch / harness - OK Perform Actuator Motor Test With switch "tripped"... less than 0 Perform Limit Switch Continuity Test OL Limit switch / harness - OK Perform Actuator Motor Test With switch "untripped"... Meter Reading Req'd Action OL Replace limit switch. less than 5 Limit switch - OK Replace limit switch harness. With switch "tripped"... less than 5 Replace limit switch. OL Limit switch - OK Replace limit switch harness. Base Actuator / Limit Switches Rev. 0/08 B-7

75 J9 Component Testing & Repair Base Actuator / Limit Switches - continued Actuator Motor Test Refer To: PC Board Test... B-9 Actuator Motor Test Step : Tag, then disconnect base actuator wires (J & J). J File Name Base Actuator / Motor Replacement J Motor Ground Test J J Actuator Motor Test Step : Place meter probes on actuator wires. Check meter reading. J J9 Meter Reading Status Required Action MA6550i J to 0 OL -orless than Actuator motor - OK. Perform Motor Ground Test Replace motor*. Motor Ground Test Step : Place one meter probe on actuator wire (J). Place other meter probe on PC board ground wire. Check meter reading. (Repeat for J) *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Meter Reading Status Required Action OL -ormore than M Motor harness - OK. Perform PC Board Test less than Replace motor*. B-8 Base Actuator / Limit Switches

76 Component Testing & Repair Base Actuator / Limit Switches - continued PC Board Test Back Section Max. Position File Name PC Board Replacement PC Board Test Step : Move BACK section so that it is approx. halfway between its maximum & minimum positions. PC Board Test Step : Tag, then disconnect base actuator wires from J & J. Back Section Min. Position Base Max. Position (Up limit switch is tripped) Base Min. Position (Down limit switch is tripped) PC Board Test Step : This test cannot be performed if either base limit switch is tripped. If necessary, remove switch bracket. (Switch wires must remain connected) PC Board Test Step 4: Move wire from J to J. Move wire from J4 to J. Equipment Alert The back limit switches will not stop movement during this test. Do not run past max. / min. positions. PC Board Test Step 5: Press & hold Base Up button for 5 seconds. Base Up Does back section move up briefly, then stop & "beep"? If YES, go to Step 6. If NO, replace PC Board*. J9 Base Down PC Board Test Step 6: Press & hold Base Down button for 5 seconds. MA768700i J Does back section move down briefly, then stop & "beep"? If YES, PC Board is OK. If NO, replace PC Board*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Base Actuator / Limit Switches Rev. 7/6/ B-9

77 Component Testing & Repair Back Actuator / Limit Switches Isolating a Malfunction This illustration shows the back limit switches and the three seviceable components of the back actuator. Use the table below to isolate the malfunction. Problem Motor runs, but makes grinding noise. Motor runs, but table does not move. Motor does not run. Required Action Clean / lube actuator threads. Replace actuator if necessary*. Inspect / replace motor coupler*. Check limit switch wire connections. - If OK... Perform Actuator Motor Test. Back Actuator / Limit Switches Isolating a Malfunction... B-0 Limit Switch / Harness Test... B- Actuator Motor Test... B- PC Board Test... B- Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers... E-0 File Name Back Actuator / Motor Replacement *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Back Limit Switches** ** Equipment Alert Do not adjust the individual switches! The limit switches & bracket must be replaced as a complete assembly. Screw Assembly (Lube threads w/lithium grease) Actuator Motor Motor Coupler MA76900i B-0 Back Actuator / Limit Switches

78 J Component Testing & Repair Back Actuator / Limit Switches - continued PC Board Harness Test Refer To: Actuator Motor Test... B- Limit Switch Harness Test J9 Step : Disconnect harness from J on main PC board Step : Unplug the appropriate limit switch harness. MA7954i Step : Place one meter probe on the common (white). Back Up (blue) Back Down (brown) Common (white) Step : Place other meter probe on the wire corresponding to the desired switch (see illustration). J Note: Check switch "tripped" & "untripped". Back Down switch "untripped"... - OR - Back Up Switch "tripped"... Meter Reading Req'd Action OL Perform Limit Switch Harness Test less than 0 Limit switch / harness - OK Perform Actuator Motor Test Back Down switch "tripped"... - OR - Back Up Switch "untripped"... less than 0 Perform Limit Switch Harness Test OL Limit switch / harness - OK Perform Actuator Motor Test Step : Measure continuity, Actuator Full Up Actuator Full Down Actuator Midway Point Meter reading should be... White to Black - Open White to Red - Closed White to Black - Closed White to Red - Open White to Black - Closed White to Red - Closed Back Actuator / Limit Switches Rev. 7/ B-

79 Component Testing & Repair Back Actuator / Limit Switches - continued Actuator Motor Test Actuator Motor Test Step : Tag / disconnect back actuator wires (J & J4). J Refer To: PC Board Test... B- File Name Back Actuator / Motor Replacement Motor Ground Test J J4 J4 J9 Actuator Motor Test Step : Place meter probes on actuator wires. Check meter reading. MA65600i MA6560i J J9 Meter Reading to 0 OL -orless than Status Required Action Actuator motor - OK. Perform Motor Ground Test Replace motor*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. MA6560i MA65600i MA6560i Motor Ground Test Step : Place one meter probe on actuator wire (J). Place other meter probe on PC board ground wire. Check meter reading. (Repeat for J4) Meter Reading OL -ormore than M Status Required Action Motor harness - OK. Perform PC Board Test J less than Replace motor*. B- Back Actuator / Limit Switches

80 Back Actuator / Limit Switches - continued PC Board Test Back Section Max. Position Component Testing & Repair File Name PC Board Replacement PC Board Test Step : This test cannot be performed with the back section in the max. or min. position. If necessary, reposition the back section. Refer to: Base Actuator - PC Board Test Base Max. Position PC Board Test Step : Tag, then disconnect back actuator wires from J & J4. Back Section Min. Position Base Min. Position PC Board Test Step : Move the BASE function so that it is approx. halfway between the maximum & minimum positions. PC Board Test Step 4: Move wire from J to J. Move wire from J to J4. Back Up Back Down Equipment Alert The base limit switches will not stop movement during this test. Do not run past max. / min. positions. PC Board Test Step 5: Press & hold Back Up button for 5 seconds. Does the base move up, then stop & "beep"? If YES, go to Step 6. If NO, replace PC Board*. J9 PC Board Test Step 6: Press & hold Back Down button for 5 seconds. MA655400i MA76900i J Does the base move down, then stop & "beep"? If YES, PC Board is OK. If NO, replace PC Board*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Back Actuator / Limit Switches Rev. 7/6/ B-

81 Component Testing & Repair Tilt Actuator / Limit Switch Isolating a Malfunction This illustration shows the Tilt Down Limit Switch and the three seviceable components of the tilt actuator. Use the table below to isolate the malfunction. Problem Motor runs, but makes grinding noise. Required Action Clean / lube actuator threads. Replace actuator if necessary*. Tilt Actuator / Limit Switch Isolating a Malfunction... B-4 Limit Switch / Harness Test... B-5 Actuator Motor Test... B-7 PC Board Test... B-8 Position Sensor Test... B- Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers... E- Motor runs, but table does not move. Motor does not run. Inspect / replace motor coupler*. (Up only) Perform Position Sensor Test (at Tilt Sensor) (Down only) Perform Limit SwitchTest. - If OK, (Up / Down) Perform Actuator Motor Test. File Name Tilt Actuator / Motor Replacement *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Screw Assembly (Lube threads w/lithium grease) ** There is only one limit switch for the Tilt function. The upper limit is controlled by the Tilt position sensor. Motor Coupler Tilt Down Switch** Actuator Motor MA769700i B-4 Tilt Actuator / Limit Switch Rev. /09

82 J Component Testing & Repair Tilt Actuator / Limit Switch - continued PC Board Harness Test Step : Disconnect harness from J on main PC board Refer To: Limit Switch Continuity Test... B-6 Actuator Motor Test... B-7 J9 Step : Place one meter probe on the common (white). MA7955i Tilt Down Switch (red) Common (white) Step : Place other probe on the Tilt Down limit switch wire (red). Note: Check switch "tripped" & "untripped". Tilt Down Switch "untripped"... Meter Reading Req'd Action OL Perform Limit Switch / Harness Test J less than 0 Limit switch / harness - OK Perform Actuator Motor Test Tilt Down Switch "tripped"... less than 0 Perform Limit Switch / Harness Test OL Limit switch / harness - OK Perform Actuator Motor Test Tilt Actuator / Limit Switch Rev. 7/ B-5

83 Component Testing & Repair Tilt Actuator / Limit Switch - continued Limit Switch Harness Test Refer To: Actuator Motor Test... B-7 Step : Unplug the appropriate limit switch harness. Limit Switch Test Step : Tag & disconnect wires from switch. Step : Place meter probes on COM and NC terminals. Note: Check switch 'tripped' and 'untripped'. Step : Measure continuity, With switch 'tripped'... Meter Reading OL Status Required Action Limit switch - OK Actuator Full Up Actuator Full Down Actuator Midway Point Meter reading should be... White to Black - Open White to Red - Closed White to Black - Closed White to Red - Open White to Black - Closed White to Red - Closed less than 5 With switch 'untripped'... Meter Reading OL less than 5 Status Replace switch Required Action Replace switch Limit switch - OK Perform Actuator Motor Test B-6 Tilt Actuator / Limit Switch Rev. 7/

84 Component Testing & Repair Tilt Actuator / Limit Switch - continued Actuator Motor Test Actuator Motor Test Step : Tag, then disconnect tilt actuator wires (J7 & J8). Refer To: PC Board Test... B-8 File Name Tilt Actuator / Motor Replacement J7 Motor Ground Test J8 J7 J9 J8 MA6570i J Actuator Motor Test Step : Place meter probes on actuator wires. Check meter reading. Meter Reading to 0 OL -orless than Status Required Action Actuator motor - OK. Perform Motor Ground Test Replace motor*. J9 MA6570i MA6570i Motor Ground Test Step : Place one meter probe on actuator wire (J7). Place other meter probe on PC board ground wire. Check meter reading. (Repeat for J8) Meter Reading Status J Required Action *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. OL -ormore than M less than Motor harness - OK. Perform PC Board Test Replace motor*. Tilt Actuator / Limit Switch B-7

85 Component Testing & Repair Tilt Actuator / Limit Switch - continued PC Board Test Tilt Max. Position File Name PC Board Replacement PC Board Test Step : This test cannot be performed with the tilt function in the max. or min. position. If necessary, reposition the tilt function. Refer to: Foot Actuator - PC Board Test Tilt Min. Position PC Board Test Step : Tag, then disconnect tilt actuator wires from J7 & J8. Foot Section Max. Position PC Board Test Step : Move the FOOT section halfway between the max. & min. positions. PC Board Test Step 4: Move wire from J6 to J7. Move wire from J5 to J8. Tilt Up Min. Position Equipment Alert The foot limit switches will not stop movement during this test. Do not run past max. / min. positions. PC Board Test Step 5: Press & hold Tilt Up button for 5 seconds. J9 Tilt Down Does the foot section move up, then stop & "beep"? If YES, go to Step 6. If NO, replace PC Board*. MA769800i MA769800i J PC Board Test Step 6: Press & hold Tilt Down button for 5 seconds. Does the foot section move down, then stop & "beep"? If YES, PC Board is OK. If NO, replace PC Board*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. B-8 Tilt Actuator / Limit Switch Rev. 7/6/

86 Component Testing & Repair Foot Actuator / Limit Switches Isolating a Malfunction This illustration shows the foot limit switches and the three seviceable components of the foot actuator. Use the table below to isolate the malfunction. Problem Motor runs, but makes grinding noise. Required Action Clean / lube actuator threads. Replace actuator if necessary*. Foot Actuator / Limit Switches Isolating a Malfunction... B-9 Limit Switch / Harness Test... B-0 Actuator Motor Test... B- PC Board Test... B- Limit Switch Bracket Adjustment... B- Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers... E- Motor runs, but table does not move. Motor does not run. Actuator runs past max / min position. Inspect / replace motor coupler*. Check limit switch wire connections. - If OK... Perform Actuator Motor Test. Perform Limit Switch Bracket Adjustment. File Name Foot Actuator / Motor Replacement *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Motor Coupler Actuator Motor Foot Limit Switches** ** Equipment Alert Do not adjust the individual switches! The limit switches & bracket must be adjusted or replaced as a complete assembly. MA770500i Screw Assembly (Lube threads w/lithium grease) Foot Actuator / Limit Switches B-9

87 Component Testing & Repair Foot Actuator / Limit Switch - continued PC Board Harness Test Step : Disconnect harness from J on main PC board Limit Switch Harness Test Refer To: Actuator Motor Test... B- J9 J Foot Up (orange) Common (white) Foot Down (green) Step : Unplug the appropriate limit switch harness. MA7958i Step : Place one meter probe on the common (white). J Step : Place other meter probe on the wire corresponding to the desired switch (see illustration). Note: Check switch "tripped" & "untripped". With switch "tripped"... Meter Reading Req'd Action OL Perform Limit Switch Harness Test less than 0 Limit switch / harness - OK Perform Actuator Motor Test With switch "untripped"... less than 0 Perform Limit Switch Harness Test OL Limit switch / harness - OK Perform Actuator Motor Test Step : Measure continuity, Actuator Full Up Actuator Full Down Actuator Midway Point Meter reading should be... White to Black - Open White to Red - Closed White to Black - Closed White to Red - Open White to Black - Closed White to Red - Closed B-0 Foot Actuator / Limit Switches Rev. 7/

88 Component Testing & Repair Foot Actuator / Limit Switches - continued Actuator Motor Test Actuator Motor Test Step : Tag / disconnect foot actuator wires (J5 & J6). J5 Refer To: PC Board Test... B- File Name Foot Actuator / Motor Replacement J6 Motor Ground Test J5 J9 J6 J Actuator Motor Test Step : Place meter probes on actuator wires. Check meter reading. J9 Meter Reading Status Required Action MA6580i J to 0 OL -orless than Actuator motor - OK. Perform Motor Ground Test Replace motor*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Motor Ground Test Step : Place one meter probe on actuator wire (J5). Place other meter probe on PC board ground wire. Check meter reading. (Repeat for J6) Meter Reading OL -ormore than M Status Required Action Motor harness - OK. Perform PC Board Test less than Replace motor*. Foot Actuator / Limit Switches B-

89 Component Testing & Repair Foot Actuator / Limit Switches - continued PC Board Test Tilt Max. Position File Name PC Board Replacement PC Board Test Step : This test cannot be performed with the foot function in the max. or min. position. If necessary, reposition the foot section. Refer to: Tilt Actuator - PC Board Test Tilt Min. Position PC Board Test Step : Move TILT function so that it is approx. halfway between its maximum & minimum positions. PC Board Test Step : Tag / disconnect foot actuator wires from J5 & J6. Foot Section Max. Position (Up limit switch is tripped) Foot Down Min. Position (Down limit switch is tripped) Foot Up Equipment Alert The foot limit switches will not stop movement during this test. Do not run past max. / min. positions. PC Board Test Step 5: Press & hold Foot Up button for 5 seconds. MA770600i J9 Does the tilt function move up, then stop & "beep"? If YES, go to Step 6. If NO, replace PC Board*. J PC Board Test Step 4: Move brown wire from J7 to J6. Move blue wire from J8 to J5. PC Board Test Step 6: Press & hold Foot Down button for 5 seconds. Does the tilt function move down, then stop & "beep"? If YES, PC Board is OK. If NO, replace PC Board*. *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. B- Foot Actuator / Limit Switches Rev. 7/6/

90 Component Testing & Repair Foot Actuator / Limit Switches - continued Limit Switch Bracket Adjustment The foot limit switch adjustment is critical to ensure proper operation (tolerance: 0.00"). Do not attempt to adjust the individual switches. Switch Bracket Adjustment Step : Loosen two bracket screws. Bracket Screws Switch Bracket Adjustment Step : Slide bracket assembly forward / backward. Check for proper operation. Readjust as necessary. MA7700i Foot Actuator / Limit Switches B-

91 Component Testing & Repair Foot Extension / Limit Switch Latch Inspection Equipment Alert The weight capacity of the foot extension is 0 lbs (54 kg). Exceeding this limit may result in equipment damage. Latch Inspection Step : Remove foot extension cover (not shown). Squeeze release handle(s). Foot Extension / Limit Switch Latch Inspection... B-4 Limit Switch / Harness Test... B-5 Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers: Foot Extension (incl. latch)... E-7 Leg Section (incl. limit switch)... E-8 [Linkage should retract locking pin, disengaging it from the receiver block] Receiver Block Release Handle Locking Pin Latch Inspection Step : Move the foot extension to both locking positions (stowed / extended). [Foot extension should move freely. Spring tension should engage the locking pin in each position] Spring Latch Inspection Step : Remove any debris restricting movement. Tighten any loose fasteners. Replace any damaged components. MA7700i B-4 Foot Extension / Limit Switch

92 Component Testing & Repair Foot Extension / Limit Switch - continued Limit Switch / Harness Test Refer To: Limit Switch Continuity Test... B-6 Step : Disconnect harness from J on main PC board J9 Step : Place one meter probe on the common (white). J J Foot Extension Limit Switch (black / white) MA7959i Common (white) Step : Place other meter probe on the Foot Extension limit switch wire (black / white). Note: Check switch "tripped" & "untripped". With switch "tripped"... Meter Reading Req'd Action OL Perform Limit Switch Continuity Test less than 0 Limit switch / harness - OK Test inoperable function(s). With switch "untripped"... less than 0 Perform Limit Switch Continuity Test OL Limit switch / harness - OK Test inoperable function(s). Foot Extension / Limit Switch B-5

93 Component Testing & Repair Foot Extension / Limit Switch - continued Limit Switch Continuity Test Before performing test... Inspect limit switch wire connections Tighten any loose connections. Replace any damaged wire harnesses st White (Com.) White / Black (NO) Step : Tag / disconnect wires. MA77400i Step : Place meter probes on COM and NO terminals. Note: Check switch 'tripped' and 'untripped'. With switch 'tripped'... With switch 'untripped'... Meter Reading Status Required Action Meter Reading Status Required Action OL Replace switch OL Limit switch - OK less than 5 Limit switch - OK less than 5 Replace switch B-6 Foot Extension / Limit Switch

94 Gas Springs Isolating a Malfunction Problem Squeaking, grinding sound coming from pivot joints. Diminished lifting capacity. (Base actuator - OK) Required Action Clean / lube pivot joints. (lubricant: lithium grease) Replace gas spring(s)*. Component Testing & Repair Gas Springs Isolating a Malfunction... B-7 Access Procedures (Cover Removal)... C- Exploded View / Part Numbers... E-4 File Name Gas Spring Replacement *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Pivot Joints MA77700i Gas Springs B-7

95 Component Testing & Repair Isolation Transformer / Chair Receptacles [NOTE: This transformer affects chair receptacles only]. Output Voltage Test Isolation Transformer Output Voltage Test... B-8 Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers... E-6 Output Voltage Test Step : Place meter probes on receptacle screws (top & bottom). Check meter reading. Meter Reading Status Required Action 0 (+) VAC Transformer - OK Replace receptacle(s). MA657700i less than 08 VAC If table power light is ON, replace transformer. If not, check supply voltage. B-8 Isolation Transformer / Chair Receptacles 64 (-00) All

96 Component Testing & Repair Main System Transformer [NOTE: This transformer affects all table functions (except table receptacles)]. Output Voltage Test Output Voltage Test Step : Set meter to 00 VAC. Main System Transformer Output Voltage Test... B-9 Resistance Test... B-0 Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers: Standard Base... E-5 Rotational Base... E-6 Output Voltage Test Step : Place meter probes on red and orange wires of transformer connector. Check meter reading. Output Voltage Test Step : Place meter probes on black and white wires of transformer connector. Check meter reading. [Black & White Wires] Meter Readng Status Required Action MA65500i [Red & Orange Wires] Meter Readng Status Required Action 4 to 58 VAC Transformer - OK to 4 VAC Transformer - OK less than 4 VAC more than 58 VAC Perform Resistance Test less than VAC Perform Resistance Test Main System Transformer B-9

97 Component Testing & Repair Main System Transformer - continued Resistance Test MA657500i Resistance Test Step 5: Place meter probes on blue and brown wires. Check meter reading. Resistance Test Step : Unplug table. Blue Brown Resistance Test Step : Disconnect four transformer wires from appliance inlet. Wires: Blue Blue/White Brown Brown/White Resistance Test Step 4: Place meter probes on blue/white and brown/white wires. Check meter reading. Resistance Test Step : Set meter to 00 Blue/White Meter Readng Status Required Action less than 0 Transformer - OK Brown/White OL -ormore than 0 Replace transformer. B-0 Main System Transformer

98 Component Testing & Repair Position Sensors Testing Step : Verify position sensor shoulder bolts are tight (50 ft-lbs). Note: This step does not apply to the Base position sensor. Step : Perform Output Voltage Test (at Sensor). Position Sensors Testing... B- Location... B- Output Voltage Test (at Sensor)... B- Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded View / Part Numbers...E-8 Note: This test must always be performed first. The results from this test determine the next required action. Location Back Sensor Affected Functions: Back UP / DOWN Crash Avoidance System Position Programming Foot Sensor Foot Sensor Affected Functions: Foot UP / DOWN Crash Avoidance System Position Programming Back Sensor Tilt Sensor Base Sensor MA77500i Tilt Sensor Affected Functions: Tilt UP / DOWN Crash Avoidance System Position Programming Base Sensor Affected Functions: Base UP / DOWN Crash Avoidance System Position Programming "Home" Function Position Sensors Rev. /0 B-

99 Component Testing & Repair Position Sensors - continued Output Voltage Test (at Sensor) Go to: Output Voltage Test (at PC Board)... B- Supply Voltage Test (at Sensor)... B-4 Note: If Tilt is stuck in Down position... Disconnect the White and Black wires at J7 & J8 on Main PC Board. Connect Black wire to J7 and White wire to J8. Perform Output Voltage Test on Tilt Up function by pressing the Tilt DOWN button. Caution: Do not run Tilt Up function beyond the halfway position. Reconnect White wire to J7 and Black wire to J8. Perform Output Voltage Test on the Tilt Down function. Base Sensor Foot Sensor Output Voltage Test Step : Set meter to 0 VDC. Place meter probes on proper terminals. (See appropriate illustration) Output Voltage Test Step : Run desired function up & down. Watch meter reading as function moves. Tilt Sensor Back Sensor Note: Each sensor has a different voltage range. Meter Readng Position Sensor Status Required Action Voltage steadily Perform Output Voltage Test increases / decreases (at PC Board) as function moves up / down Voltage does not change, or changes erratically as function moves up / down Perform Supply Voltage Test (at Sensor) B- Position Sensors Rev. 7/6/

100 Component Testing & Repair Position Sensors - continued Output Voltage Test (at PC Board) Go to: File Name PC Board Replacement B-44 Output Voltage Test Step : Set meter to VDC J9 J Probe position for: Back Sensor Yellow Grey J MA656800i Output Voltage Test Step : Place meter probes on proper wires. (See appropriate illustration) Probe position for: Base Sensor Black Brown J Yellow Yellow / White J Output Voltage Test Step : Run desired function up & down. Watch meter reading as function moves. Probe position for: Tilt Sensor J Note: Each sensor has a different voltage range. Meter Readng Voltage does not change, or changes erratically as function moves up / down PC Board Status Required Action Check wire harness (connections, damage, etc) Probe position for: Foot Sensor Green / White Yellow J Voltage steadily increases / decreases as function moves up / down Replace PC Board*. * Before replacing PC board, be sure shoulder bolt at the position sensor pivot point is tight. If bolt is loose, tighten it, then recalibrate PC board & check for proper operation. Position Sensors Rev. /08 B-

101 Component Testing & Repair Position Sensors - continued Supply Voltage Test (at Sensor) Supply Voltage Test Step : Set meter to 0 VDC Base Sensor Go To: Supply Voltage Test (at PC Board)... B-5 Position Sensor Adjustment... B-6 File Name Position Sensor Replacement Foot Sensor Supply Voltage Test Step : Place meter probes on proper terminals. (See appropriate illustration) Check meter reading. Supply Voltage Test Step : With meter probes in same position, run BASE function to max / min. position. Check reading as function moves. Meter Readng Position Sensor Status Required Action Tilt Sensor Back Sensor to 4 VDC less than VDC more than 4 VDC Reading changes erratically as BASE moves up / down. Position Sensor Adjustment. Replace position sensor*. Perform Supply Voltage Test (at PC Board) Perform Supply Voltage Test (at PC Board) *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. B-4 Position Sensors

102 J Component Testing & Repair Position Sensors - continued Supply Voltage Test (at PC Board) File Name PC Board Replacement Supply Voltage Test Step : Set meter to 0 VDC J9 MA654700i * Attention (Back / Tilt / Foot only) If initial reading is less than VDC or more than 4VDC, unplug J connector & check meter reading at pins on PC board (same location). If reading is: to 4 VDC Replace sensor wire harness. < VDC Replace PC board. > 4 VDC Replace PC board Supply Voltage Test Step : Place meter probes on proper wires. (See appropriate illustration) Probe position for: Back Sensor* Tilt Sensor* Foot Sensor* Violet Yellow J Meter Reading to 4 VDC less than VDC more than 4 VDC PC Board Status Required Action Replace wire harness between: (sensor & junction board) - or (junction board & PC board) Replace PC board*. Probe position for: Base Sensor J Black Red J *Replacement instructions are provided with the part. They are also available on Documark.com, or by clicking on the link in the blue box. Position Sensors B-5

103 Component Testing & Repair Position Sensors - continued Adjustment Adjustment Step : Position corresponding table function as indicated (see Note). Turn sensor knob until voltage matches the chart below. Note: Base / Back / Foot functions: all the way UP Tilt function: all the way DOWN Yellow Yellow / White Tilt Sensor SENSOR FUNCTION POSITION VOLTAGE READING J BASE all the way UP.7 to. VDC BACK all the way UP.4 to.6 VDC TILT all the way DOWN.8 to. VDC FOOT all the way UP.4 to.6 VDC Adjustment Step : Remove main PC board cover. Place meter probes as shown to test desired sensor. Back Sensor Yellow Grey J Base Sensor Black Brown* Green / White Yellow J Foot Sensor J J9 MA656800i J J *Alternate wire color: Blue Adjustment Step : Perform PC Board Calibration. [Refer to PC Board in Section B]. MA8060i B-6 Position Sensors Rev. /4/

104 Component Testing & Repair Main PC Board Error Codes If the PC Board detects a malfunction in the electrical system, the two Error Code LEDs on the PC Board will flash in a specific sequence to identify the cause of the problem. How to Display an Error Code If you suspect a problem with a specific function... A. Remove PC Board cover / locate Error Code LEDs B. Press hand/foot control button for desired function. Main PC Board Error Codes: How To Display / Recall Last Five... B-7 Identification (Error Code Charts)... B-8 Calibration Procedure... B-9 Child Lock-Out Mode... B-40 Access Procedures (Cover Removal)... C- Wiring Diagrams... D- Exploded Views / Part Numbers: Standard Base... E-5 Rotational Base... E-6 If an electrical malfunction is detected: Function will stop moving. You will hear a "beep". Error Code LEDs will flash error code sequence. ON S Button How to Recall Last Five Error Codes J To recall the last five error codes... A. Move both MODE SELECT switches to ON (up). B. Unplug table (to reset PC Board), then plug back in. C. Press and release S Button. (To repeat error codes, press S Button again) (To erase all error codes from memory, press & hold S Button until you hear three "beeps") If there are error codes stored in the system memory: Error Code LEDs will flash the sequence of the five most recent error codes. (You will hear three "beeps" between each error code) O N MODE SELECT Error Code LEDs MA657000i ATTENTION! To return to normal operation... A. Move MODE SELECT block switches back to original position. B. Unplug table (to reset board). C. Plug table back in. Main PC Board B-7

105 Component Testing & Repair Main PC Board - continued Error Codes - continued Identification Digit LED: This LED identifies the function or mode during which the error was detected. (ex. Base / Back / Tilt / Foot, Programming Mode, Calibration Mode, Software System) Record the number of times this LED flashes before Digit LED begins to flash. ON Digit LED Digit LED Digit LED: This LED identifies cause of the error. (ex. actuator motor overload, treatment pan out, etc.) Record the number of times this LED flashes before Digit LED flashes again. DIGIT DIGIT Locate the two digit error code in the charts below: MA65700i (# of flashes) Digit LED Table Function (# of flashes) Digit LED BASE BACK TILT 4 FOOT 4 Cause of the Error Function in potential crash position Actuator motor run time exceeded max. limit Position sensor did not move when function was activated Position sensor reading acceptable range is out of (# of flashes) Digit LED 8 Table Function Calibration Mode Error Recall Mode (# of flashes) Digit LED Cause of the Error Calibration was not successful Incorrect button pressed Calibration Mode. Incorrect button pressed Error Recall Mode. while in while in 5 ( not used) 5 Actuator motor overload 6 ( not used) 6 Function failed calibration during 9 Software System Software malfunction Software malfunction 7 Programming Mode P osition Button (,,, or 4) not pressed within 5 seconds. Incorrect button pressed while in Programming Mode. Position cannot be programmed (possible "crash" position) Software malfunction 4 5 Foot Down function activated w/ foot extension folded out. Hand/foot control button pressed while in Child Lock-Out Mode 9 Disregard this error. B-8 Main PC Board Rev. 5/08

106 Component Testing & Repair Main PC Board - continued Calibration Procedure During the Calibration Procedure, the PC Board records the voltage readings from the position sensors as the base, back, and foot actuators move to their maximum, then minimum positions. Note: The tilt actuator will only move momentarily as it clears the tilt down limit switch and then returns to the minimum position.you will hear a steady pattern of "beeps" as the table moves during calibration. When successful calibration is complete, the table will stop moving and you will hear three "beeps". You must calibrate the PC Board in the following situations: After replacing the PC Board After replacing any of the position sensors After any of the position sensors are removed or disconnected Calibration Procedure Step 4: Wait 5 seconds, then press S Button. S Button Equipment Alert On models with rotational base, remove PC board cover before performing the calibration procedure. ON ON Calibration Procedure Step : Move the foot section to the stowed position. Calibration Procedure Step : Move MODE SELECT switches: Switch - ON (up) Switch - off (down) O N MODE SELECT J Calibration Procedure Step : Unplug table (to reset PC Board), then plug table back in. MA65700i ATTENTION! To return to normal operation... A. Move MODE SELECT block switches back to original position. B. Unplug table (to reset board). C. Plug table back in. Main PC Board Rev. 4/0 B-9

107 Component Testing & Repair Main PC Board - continued Child Lock-Out Mode (Programmable models only) This feature allows the user to lock-out the hand & foot controls to prevent unauthorized use. [NOTE: When the table is in Child Lock-Out Mode, the Position "4" button cannot be used to store a programmed position.] Child Lock-Out Mode Step : Move MODE SELECT switches: Switch - off (down) Switch - ON (up) ON ON Child Lock-Out Mode Step : To lock hand / foot controls... Press & hold "4" button on hand / foot control. (After 5 seconds you will hear a "beep". This indicates the controls are locked) Note: If a button is pressed while controls are locked, you will hear a "beep". To unlock hand / foot controls... Press & hold "4" button on hand / foot control. (After 5 seconds you will hear a "beep". This indicates the controls are unlocked) O N Position "4" Button MODE SELECT Child Lock-Out Mode Step : Unplug table (to reset PC Board), then plug table back in. MA657400i To deactivate Child Lock-Out Mode... A. Move MODE SELECT switches: Switches & - off (down). B. Unplug table (to reset board). C. Plug table back in. B-40 Main PC Board 64 (-00 & -005) All

108 Component Testing & Repair Rotational Base Brake System Magnet Position Adjustment If the rotational brake will not unlock, the electro-magnet may be out of adjustment. Magnet Position Adjustment Step : Rotate the base to access the brake lever cover. Remove brake lever cover. Note: If the brake will not release, the base can still be rotated manually by applying additional force. The brake lever cover is located between the upper & lower base castings at the patient's left rear corner. Magnet Screw Rotational Base Brake System Magnet Position Adjustment... B-4 Rotational Brake Electrical Test / Fuse Location... B-4 Electro-magnet Test... B-4 EMI Filter Board Test... B-44 Brake Pedal Switch Access... B-45 Seperating Upper & Lower Base Castings... B-46 Brake Lever & Electro-magnet Access... B-5 Foot Control Inlet / Power Inlet / EMI Filter Board Access... B-5 Wiring Diagrams... D- Exploded View / Part Numbers: Upper Section... E-6 Lower Section... E-7 Brake Lever Cover Magnet Position Adjustment Step : Press the brake pedal while watching the brake lever. If the magnet "grabs" the brake lever... Tighten the magnet screw /4 turn. If the magnet does not "grab" the brake lever... Loosen the magnet screw /4 turn. Check for proper operation. Repeat if necessary. MA7000i 64 (-004 & -005) All Rotational Base Brake System B-4

109 Component Testing & Repair Rotational Base Brake System - continued Rotational Brake Electrical Test / Fuse Location Refer to: Electro-magnet Test... B-4 Access Procedures (Cover Removal)... C- Rotational Brake Electrical Test. Step : Remove PC board cover. Refer to: Section C - PC Board Cover Rotational Base PC Board Rotational Brake Electrical Test Step : Set meter to VAC Rotational Brake Electrical Test Step : Place meter probes on wires at J on Rotational Base PC Board. Rotational Brake Electrical Test Step 4: Check voltage. Note: If no voltage is detected, press & release the brake pedal - check voltage again. Fuse Meter Reading 5 - VAC Status Required Action PC board is OK. Perform Electro-magnet Test. 0 VAC Check Rot. Base PC board fuse. If fuse is OK, replace PC board. J MA700i B-4 Rotational Base Brake System 64 (-004 & -005) All

110 Component Testing & Repair Rotational Base Brake System - continued Electro-magnet Test Refer to: Electro-magnet Access... B-5 Access Procedures (Cover Removal)... C- Electro-magnet Test. Step : Remove PC board cover. Refer to: Section C - PC Board Cover Rotational Base PC Board Electro-magnet Test. Step : Set meter to Electro-magnet Test. Step 4: Place meter probes on wire harness. Electro-magnet Test. Step : Disconnect electro-magnet wire harness from J on Rotational Base PC Board. Meter Reading approx. 0 Status Required Action Electro-magnet is OK. Check mechanical components. OL - or less than 5 Inspect magnet wire harness. If OK, replace electro-magnet. J J MA700i 64 (-004 & -005) All Rotational Base Brake System B-4

111 Component Testing & Repair Rotational Base Brake System - continued EMI Filter Board Test This test allows you to check for line voltage coming thru the EMI filter board without separating the upper & lower base castings. Refer to: Primary Fuses... B- EMI Filter Board Access... B-5 Access Procedures (Cover Removal)... C- Rotational Brake Electrical Test. Step : Remove PC board cover. Refer to: Section C - PC Board Cover Rotational Base PC Board Rotational Brake Electrical Test Step : Set meter to VAC Blue Brown / White Meter Reading Line voltage (5 / 0 VAC) Status Required Action EMI Filter board is OK. Check connections to main PC board. Rotational Brake Electrical Test Step : Place meter probes on blue wire and brown / white wire at J on Rotational Base PC Board. 0 VAC Check primary fuses & wire harness. If fuses & harness are OK, replace EMI filter board. J MA77800i B-44 Rotational Base Brake System 64 (-004 & -005) All

112 Go To Table Of Contents Back Next Component Testing & Repair Rotational Base Brake System - continued Brake Pedal Switch Access Go To : Refer To: Access Procedures (Cover Removal)... C- Removal. Step : Raise base shrouds. Refer to: Section C - Base Shrouds Installation Step : Secure shroud spacer w/ two screws. Lower base shrouds. Removal. Step : Remove two screws from shroud spacer. Installation Step : Install brake pedal. Connect wires to proper terminals. Removal. Step : Remove brake pedal. Removal. Step 4: Tag & disconnect wires from switch. Note: Pivot brake pedal toward column, then press down and push forward to release. Remove switch. Installation Step : Install switch. Connect wires to proper terminals. MA75000i 64 (-004 & -005) All Rotational Base Brake System B-45

113 Component Testing & Repair Rotational Base Brake System - continued Separating Upper & Lower Base Castings Separating Step : Route bungee cord across top of base column (under seat). Note: It may be necessary to run the Tilt UP function to route bungee cord under seat section. Separating Step : Run Base UP function to its max height. Position table so that foot & back sections are level as shown. Assembling Base Castings Step 7: Install shroud spacer. Lower base shrouds. Replace PC board cover. Bungee Cord Separating Step 4: Raise shrouds, then attach bungee cord hooks under shrouds on both sides. Installation Step 0: Remove bungee cord. Secure inner shrouds w/screws. Separating WARNING Always disconnect table power cord before removing any covers or shrouds. Step : Remove bottom screws from inner shrouds. MA775600i Procedure continued on following page... B-46 Rotational Base Brake System Rev. 7/6/ 64 (-004 & -005) All

114 Component Testing & Repair Rotational Base Brake System - continued Separating Upper & Lower Base Castings - continued Removal Step 5: Partially separate PC board cover. Note: Do not disconnect wire harnesses. Installation Step 9: Replace PC board cover. Installation Step 7: Install wire harness cover. Removal Step 7: Remove wire harness cover. Removal Step 6: Remove shroud spacer. Installation Step 8: Install shroud spacer. Lower Harness (B) Installation Step 6: Replace all cable ties. Connect ground wires for lower harness (A). Lower Harness (A) Removal Step 8: Disconnect ground wire for lower harness (A). Remove cable ties securing lower harnesses (A & B) to base. MA746600i Procedure continued on following page (-004 & -005) All Rotational Base Brake System B-47

115 Component Testing & Repair Rotational Base Brake System - continued Separating Upper & Lower Base Castings - continued Removal CAUTION The table weighs approx. 540 lbs (44 kg). Use supports designed for this amount of weight. Step 9: Position sawhorses (or other suitable supports) under back section weldment & foot section weldment. Hub Screw Installation WARNING Disconnect the table power cord before performing the remaining Installation steps. Step 5: Install four hub screws. Removal CAUTION The table top / upper base is not secured once the hub screws are removed. Hold onto the table when performing the following steps. Step 0: Remove four hub screws. MA775700i Procedure continued on following page... B-48 Rotational Base Brake System Rev. 7/6/ 64 (-004 & -005) All

116 Component Testing & Repair Rotational Base Brake System - continued Separating Upper & Lower Base Castings - continued Removal & Installation WARNING The Removal & Installation steps on this page require power to be connected to the table. Avoid all contact with wiring & electrical components. Removal Equipment Alert The two lower wire harnesses are still conected to upper casting. Running the Base Down function too long may result in damage to the table. Step : Press Base DOWN button on hand or foot control until upper and lower base castings separate slightly. Base UP Base DOWN Installation CAUTION The table top / upper base is not secured until the hub screws are installed. Hold onto the table when performing the following steps. Step : Press Base UP button on hand / foot control until table raises (slightly) off of sawhorses. Upper Base Casting (bottom view) Installation Step 4: Carefully adjust table top until alignment studs on bottom of upper casting lock into the notches on the rotation wheel. Alignment Stud Note: You will feel table top drop into place when alignment studs engage notches. MA775800i Notch Rotation Wheel (in Lower Base Assembly) Procedure continued on following page (-004 & -005) All Rotational Base Brake System Rev. 7/6/ B-49

117 Component Testing & Repair Rotational Base Brake System - continued Separating Upper & Lower Base Castings - continued Removal & Installation WARNING Disconnect table power cord before performing any of the Removal / Installation steps on this page. Installation Step : Route wire harnesses thru upper casting. Reconnect all wire harnesses as shown. Removal Step : Disconnect wire harness from J & J on rotational base PC board. J Removal Step : Disconnect wire harness from J9 on main PC board. J J9 I/O PORT Removal Step 4: Slide lower base assembly out. MA775900i Installation Step : Slide lower base assembly under table. Note: To ease installation, align the new lower base assembly in the same position as the old base. B-50 Rotational Base Brake System Rev. 7/6/ 64 (-004 & -005) All

118 Component Testing & Repair Rotational Base Brake System - continued Brake Lever & Power Electro-magnet Access Refer To: Separating Upper & Lower Base Castings... B-46 Brake Lever Removal Step : Separate upper & lower base castings. Refer to: Section B - Rot. Base Brake System. Brake Lever Removal Step : Remove corner cover & top cover from lower base assembly. Brake Lever Installation Step : Position brake lever so that it aligns w/ slots in brake pad. Secure lever with two screws. Note: Be sure roll pins (in brake lever) align with springs Brake Lever Removal Step : Remove brake lever. Attention: Check brake pad for excessive wear. Brake disk should rotate when lever is removed. Remove any debris in mechanism. Brake Disk Brake Pad Spring Washer Electro-magnet Removal Step : Remove brake lever. Electro-magnet Removal Step : Disconnect magnet wire harness. Remove magnet. Electro-magnet Installation Step : Connect magnet wire harness. Install magnet. Spring MA77500i Note: Be sure spring washer is in place under magnet. 64 (-004 & -005) All Rotational Base Brake System B-5

119 Component Testing & Repair Rotational Base Brake System - continued Foot Control Inlet / Power Inlet / EMI FIlter Board Access Removal (all) Step : Separate upper & lower base castings. Refer to: Section B - Rot. Base Brake System. Refer To: Separating Upper & Lower Base Castings... B-46 Removal (all) Step : Turn lower base casting upside down. Remove bottom cover. To remove EMI filter board... A. Tag & disconnect all wires to board. B. Remove board from mtg. studs. To remove foot control inlet... A. Unscrew lock nut. B. Remove foot control inlet / harness assembly. To remove power inlet... A. Tag & disconnect all wires to power inlet. B. Pry power inlet out of bottom cover. MA77700i B-5 Rotational Base Brake System Rev. 5/06 64 (-004 & -005) All

120 Section C Access Procedures Access Procedures Removing & Installing: PC Board Cover: models w/ Standard Base... C- models w/rotational Base... C- Base Shrouds: Raising (w/bungee cord)... C-4 Lowering / Removing / Installing... C-5 Upholstery... C-6 C-

121 Access Procedures PC Board Cover (models w/ Standard Base) Removal / Installation Caution Unplug power cord before removing PC Board cover. Installation Step : Position cover. Secure with two screws. Removal Step : Remove two screw(s) and partially separate cover. Note: You must perform Step before cover can be completely removed. Installation Step : Connect wire harnesses to J9 & J on PC Board. Removal Step : Disconnect wire harnesses from J9 & J on PC Board. Removal (if necessary) Step : Remove wire harness cover. J9 Installation (if necessary) Step : Install wire harness cover. J MA6500i C- PC Board Cover (Standard Base) Rev. 7/6/ 64 (-00 & -00) all

122 J Access Procedures PC Board Cover (models w/ Rotational Base) Removal / Installation Caution Unplug power cord before removing PC Board cover. Removal Step : Remove two screw(s) and partially separate cover. Note: You must perform Step before cover can be completely removed. Removal Step : Remove two screw(s) from transformer mtg. plate. Installation Step : Secure transformer mtg. plate. Position cover. Secure with two screws. Installation Step : Position transformer mtg.plate so that tab is engaged. Removal Step : Pull transformer mtg. plate out to disengage tab. Prop mtg. plate up behind two standoffs as shown. Removal Step 4: Disconnect wire harnesses from J9 & J on PC Board. Tab Installation Step : Connect wire harnesses to J9 & J on PC Board. J9 MA700i 64 (-004 & -005) all PC Board Cover (Rotational Base) Rev. 7/6/ C-

123 Access Procedures Base Shrouds Raising (w/ bungee cord) Raising Shrouds Step : Lift shrouds, then attach bungee cord hooks under shrouds on both sides. Raising Shrouds Step : Stretch bungee cord across top of base column (under seat). Note: It may be necessary to run Tilt UP function to route bungee cord under seat section. Bungee Cord Raising Shrouds Step : Remove bottom screws from inner shrouds. C-4 Base Shrouds

124 Access Procedures Base Shrouds - continued Lowering / Removal / Installation Lowering / Removal Step : Remove magnetic cladding ( pcs). Installation Step : Install magnetic cladding. Installation Step : Position outer shrouds. Secure with screws at both ends. Note: Insert shroud tabs into seat weldment slots. Equipment Alert Lower the base before performing Step. This will prevent the shrouds from falling when the outer shrouds are removed. Lowering / Removal Step : Remove screws from outer shrouds only. Pull shrouds outward to disengage tabs. MA77800i Installation Step : Position inner shrouds, then secure with screws. Repeat for middle shrouds Note: Be sure shroud tabs stack on top of each other. Equipment Alert The middle & inner shrouds sets are different sizes. Be sure to keep the sets together. Removal Step : Remove screws from inner & middle shrouds. Base Shrouds C-5

125 Access Procedures Upholstery Removal / Installation NOTE: Upholstery is fastened with velcro. To remove, simply pull desired section away from mounting surface. To install seat / back section upholstery... A. Raise back section of table to approx. 0. B. Position front of seat upholstery against mounting board. C. Press seat section down firmly, then lay back section into position and press down firmly. Raise approx. 0 To install headrest assembly... A. Loosen headrest adjustment knob. B. Insert mounting stud into headrest fixture. C. Position headrest as desired. D. Tighten headrest adjustment knob. To install foot rest / extension upholstery... A. Position upholstery section with mounting board. B. Lay upholstery flat, then press down firmly. MA757900i C-6 Upholstery Rev. /05

126 Section D Wiring Diagrams Model 64: (-00)... D- (-00)... D- (-004 & -005)... D-4 D-

127 Wiring Diagrams Refer To: Primary Fuses... B- Hand Control Base Actuator Back Actuator BK Foot Actuator Tilt Actuator A Foot Control B BK 5 5 BK 4 4 RD BK / F K BK / RD COM NC NO NC NO COM Foot Extension Switch Tilt Down Limit Switch Item A Harness Description (sensors & switches not included) Connection Port Harness [short - head end] Part Number BK BK Choke J J BL Choke BR BK BL BR J J4 J5 J6 J7 J8 BK P9 J9 P0 J0 J P E RD OR GN RD BK G RD BK COM NC NO COM NC NO Foot Up Limit Switch Foot Down Limit Switch B C D E F G H I J Connection Port Harness [long - foot end] Position Sensor / Limit Switch Harness - BASE Power Light Harness [includes green light] 'PC Board to Junction Board' Harness Tilt Limit Switch Harness Foot Limit Switch Assembly [includes harness & two switches] Back Limit Switch Assembly [includes harness & two switches] Position Sensor Harness - FOOT Position Sensor Harness - TILT & BACK (incl. sensor) (incl. both sensors) GN / YL J5 GN / YL BL N BR L BK RD OR H G BL BL / D F C BR B F BR / A Main PC Board Main System Transformer J J J4 P P Power Inlet Fuses: Refer to Fuses in Section B for part number & rating C D L Power Light BR GY YL / BK VI YL BL GN / VI BK 4 4 RD YL Blue or Brown Yellow or White OR GN VI 4 GY BR RD BK GN GN YL YL VI COM NC NO COM NC NO H I J BK RD VI YL Base Position Sensor YL GN VI BR YL VI GY Base Up Limit Switch Base Down Limit Switch NC NO COM NC NO COM Back Up Limit Switch Back Down Limit Switch Foot Position Sensor Tilt Position Sensor Back Position Sensor K Foot Extension Switch Harness MA75700i D- Wiring Diagrams Rev. 6/0/ 64 (-00) all

128 Wiring Diagrams Hand Control Refer To: Primary Fuses... B- Base Actuator Back Actuator BK Foot Actuator Tilt Actuator A Foot Control (optional) B BK BK / 5 5 BK 4 4 RD F K BK / RD NC NO COM COM NC NO Foot Extension Switch Tilt Down Limit Switch BK BK Choke J J BL Choke BR BK BL BR J J4 J5 J6 J7 J8 BK P9 J9 P0 J0 J P E RD OR GN RD BK G RD BK COM NC NO COM NC NO Foot Up Limit Switch Foot Down Limit Switch Item A Harness Description (sensors & switches not included) Connection Port Harness [short - head end] Part Number GN / YL J5 BK RD OR Main System Transformer Power Inlet BL / A F B BR C F D G BL H L BR N GN / YL BL BL Main PC Board BR / BR BR / GN/ YL BL / J J J4 BL / GN/ YL P P BR / Isolation Transformer C D L Power Light BR GY YL / BK VI YL BL GN / VI BK 4 4 RD YL Blue or Brown Yellow or White OR GN VI 4 GY BR RD BK GN GN YL YL VI COM NC NO COM NC NO H I J BK RD VI YL Base Position Sensor YL GN VI BR YL VI GY Base Up Limit Switch Base Down Limit Switch NC NO COM NC NO COM Back Up Limit Switch Back Down Limit Switch Foot Position Sensor Tilt Position Sensor Back Position Sensor B C D E F G H I J Connection Port Harness [long - foot end] Position Sensor / Limit Switch Harness - BASE Power Light Harness [includes green light] 'PC Board to Junction Board' Harness Tilt Limit Switch Harness Foot Limit Switch Assembly [includes harness & two switches] Back Limit Switch Assembly [includes harness & two switches] Position Sensor Harness - FOOT Position Sensor Harness - TILT & BACK (incl. sensor) (incl. both sensors) MA75800i K Foot Extension Switch Harness (-00) all Wiring Diagrams Rev. 6/0/ D-

129 Wiring Diagrams Refer To: Primary Fuses... B- Item A B C D E F G H I J K L M N Harness Description (sensors & switches not included) Connection Port Harness [short - head end] Connection Port Harness [long - foot end] Position Sensor / Limit Switch Harness - BASE Power Light Harness [includes green light] 'PC Board to Junction Board' Harness Part Number Tilt Limit Switch Harness Foot Limit Switch Assembly [includes harness & two switches] Back Limit Switch Assembly [includes harness & two switches] Position Sensor Harness - FOOT Position Sensor Harness - TILT & BACK Foot Extension Switch Harness (incl. sensor) (incl. both sensors) Brake Switch Harness Rotational Base PC Board - Power Inlet Rotational Base PC Board - Main PC Board To J5 on Main PC Board N Base Actuator GN / YL BK BK Choke J J5 J N Back Actuator To J0 on Rotational Base PC Board J0 J9 BK BL Choke BK BL BR J J4 J5 J6 J7 Rotational Base PC Board OR RD BK BR Foot Actuator Main PC Board Hand Control P9 J9 A Rotational Brake Switches J7 BL Tilt Actuator J J5 BL/ BR J8 J6 BK BR/ J J4 J GN / YL L BK Foot Control P0 J0 COM NC NO BK BK BK BK B BK J J J J4 [Right] COM NC NO M Electro-magnet P P P [Left] A B C D Fuses: Refer to Fuses in Section B for part number & rating E D C BR G Power Inlet Power Light BL H Blue or Brown Yellow or White BR L GN / YL N BL GN / YL BK RD OR BR GY YL / BK VI YL GN BL GN / OR VI 4 4 RD BK BK 4 4 RD YL BK / 5 5 BK 4 4 RD GN J4 J6 J GN VI RD BK GN COM NC NO COM NC NO GY BR YL EMI Filter PC Board J J J YL VI F G H I J K Base Position Sensor RD BK Base Up Limit Switch Base Down Limit Switch BK / BK VI RD RD COM NC NO COM NC NO YL GN VI BR YL VI GY YL NC NO COM COM NC NO NC NO COM NC NO COM Foot Extension Switch Tilt Down Limit Switch Foot Up Limit Switch Foot Down Limit Switch Back Up Limit Switch Back Down Limit Switch Foot Position Sensor* Tilt Position Sensor Back Position Sensor MA75900i D-4 Wiring Diagrams Rev. 6/0/ 64 (-004 & -005) all

130 Exploded Views & Section EParts Lists Model 64: Standard Base (-00 /-00)... E- Rotational Base (-004 /-005)... E- E-

131 Go To Table Of Contents Back 64(-00 / -00) Next The blue boxes on this page are "linked". Point and click on the text in the desired box to go to that page, or use the Go To button. w/ Standard Base Go To : Adjustment Knobs... E- Upholstered Top: Premium... E-4 Ultra-Premium... E-5 Headlock Assembly... E-6 Position Sensors... E-8 Actuators / Limit Switches: Base (w/limit switches)... E-9 Back (w/limit switches)... E-0 Tilt (w/limit switch)... E- Foot (w/limit switches)... E- Back Section... E-0 Leg Section... E-8 Seat Section... Seat Section... E-9E-9 includes: side cover Foot Extension... E-7 Column Top Components... E- Standard Base Components... E-5 includes: upper glides & wire routing strap includes: main PC board, power cord, fuses, main transformer, etc. Base Shrouds... E- Hand Control... E-5 Foot Control: Linear-style... E- Disc-style... E-4 Optional Features Scissor Components... E-4 includes: base limit switches & gas springs E- * Indicates multiple pages due to a serial number break for the parts illustration Chair Receptacles... E-6 Optional Headrests... E-7 Paper Roll Holder... E-8

132 Go To Table Of Contents Back Next The blue boxes on this page are "linked". Point and click on the text in the desired box to go to that page, or use the Go To button. 64(-004 / -005) w/ Rotational Base Go To : Adjustment Knobs... E- Upholstered Top: Premium... E-4 Ultra-Premium... E-5 Headlock Assembly... E-6 Position Sensors... E-8 Actuators / Limit Switches: Base (w/limit switches)... E-9 Back (w/limit switches)... E-0 Tilt (w/limit switch)... E- Foot (w/limit switches)... E- Back Section... E-0 Leg Section... E-8 Seat Section... E-9E-9 Seat Section... includes: side cover Foot Extension... E-7 Column Top Components... E- Rotational Base: Upper Section... E-6 includes: upper glides & wire routing strap includes: main PC board, brake switches, main transformer, rotation control PC board, etc. Base Shrouds... E- Rotational Base: Lower Section... E-7 includes: brake, rotation bearings, etc. Hand Control... E-5 Optional Features Foot Control: Linear-style... E- Disc-style... E-4 Scissor Components... E-4 Chair Receptacles... E-6 Optional Headrests... E-7 Paper Roll Holder... E-8 includes: base limit switches & gas springs * Indicates multiple pages due to a serial number break for the parts illustration E-

133 ATTENTION: Refer to Current Color Options link for appropriate numbers to replace -xxx. Refer To: Optional Headrests... E-7 a) xxx b) xxx c) 00--xxx d) xxx e) xxx Color Selector... a) xxx b) xxx c) xxx 6 a) xxx b) xxx c) xxx a) xxx b) xxx c) xxx 5 4 Item Description Qty. Premium Upholstery Kit (incl. items thru 5): a) Standard... b) Standard Cal... c) PVC-free... d) UltraFree... e) UltraFree Cal... Contoured Headrest Assembly Refer to: "Optional Headrests"... Ref Back / Seat Section Uph. a) Standard & UltraFree... b) Standard & UltraFree Cal... c) PVC-free... 4 Leg Section Uph. a) Standard & UltraFree... b) Standard & UltraFree Cal... c) PVC-free... 5 Foot Extension Uph. a) Standard & UltraFree... b) Standard & UltraFree Cal... c) PVC-free... 6 Refer to: "Optional Headrests"... Ref MA76500i Always Specify Model & Serial Number E-4 Upholstered Top: Premium Rev. 9/0/7 All

134 ATTENTION: Refer to Current Color Options link for appropriate numbers to replace -xxx. Refer Refer To: To: Optional Headrest Headrests Assembly...E-x E-7 Color Section Selector F...F- a) xxx b) xxx a) xxx b) xxx 6 a) xxx b) xxx 4 Item Description Qty. a) xxx b) xxx 5 Ultra-Premium Uph. Kit (incl. items thru 5): a) Standard... b) Cal... Contoured Headrest Assembly Refer to: "Optional Headrests"... Ref Back / Seat Section Uph. a) Standard... b) Cal... 4 Leg Section Uph. a) Standard... b) Cal... 5 Foot Extension Uph. a) Standard... b) Cal... 6 Refer to: "Optional Headrests"... Ref MA76600i Always Specify Model & Serial Number All Upholstered Top: Ultra-Premium Rev. 9/0/7 E-5

135 Refer To: Upholstered Top: Premium... E-4 Ultra-Premium... E-5 Adjustment Knob Assembly... E Item Description Qty. Headlock Assembly (includes items thru )... Headlock Housing: Back... Refer to: "Adjustment Knob Assy"... Ref 4 Screw (.5 mm x 0mm)... 5 Sleeve Bearing... 6 E-ring (0.75" dia.)... 7 Headlock Pivot... 8 Headlock Shaft (apply red Loctite)... 9 Headrest Clamp... 0 Headlock Housing: Front... Screw (#0- x /")... Refer to: "Upholstered Top"... Ref Head Pivot Weldment... MA76700i Always Specify Model & Serial Number E-6 Headlock Assembly Rev. 0/0 All

136 Refer To: Leg Section... E Item Description Qty Foot Extension Assembly (incl. items thru )... Foot Ext. Weldment... Spring... 4 Locking Pin... 5 Clevis Pin (incl. item 8)... 6 Handle... 7 Bracket... 8 E-ring (small)... Ref 9 E-ring (large)... 0 Screw (#0-4 x /8")... 6 Bottom Cover... Stem Bumper... Screw (#0-4 x /8")... 4 Foot Ext. Substrate (incl. velcro)... 5 Screw... 6 Refer to: "Leg Section"... Ref MA76440i Always Specify Model & Serial Number All Foot Extension Rev. 6/6/7 E-7

137 Refer To: Position Sensors... E-8 Foot Extension... E Torque: 0 ft/lbs Torque: ft/lbs Item Description Qty Screw... 4 Leg Section Substrate (incl. velcro)... Nut... 4 Thrust Washer... 5 Shoulder Screw... 6 Refer to: "Position Sensors"... Ref 7 Leg Section Assy. (incl. items 8 thru 4)... 8 Limit Switch... 9 Bottom Cover... 0 Screw (#0-4 x /8")... 4 Receiver Block... Bushing... Leg Section Weldment... 4 Hex Screw (5/6"-8 x ") Pin... 6 Set Screw... 7 Refer to: "Foot Extension"... Ref MA764600i Always Specify Model & Serial Number E-8 Leg Section All Rev. 7/5

138 Refer To: Back Actuator / Limit Switches... E Tilt Actuator / Limit Switch... E- Foot Actuator / Limit Switches... E Torque: 55 ft/lbs Torque: ft/lbs Item Description Qty Screw... Seat Section Substrate... Support Plate... 4 Harness Cover... 5 Tubing Bracket... 6 Rubber Strip... 7 Cover (left)... 8 Screw (#0-4 x /8") Seat Weldment... 0 Cover (right)... Shoulder Bolt (5/8" x /4")... Washer, nylon... Flange Bearing... 4 Jam Nut (/"-) MA80i For Actuators & Limit Switches, refer to: 5 "Back Actuator / Limit Switches"... Ref 6 "Foot Actuator / Limit Switches"... Ref 7 "Tilt Actuator / Limit Switch"... Ref Always Specify Model & Serial Number All Seat Section Rev. 8/0 E-9

139 Refer To: Adjustment Knob Assembly... E Item Description Qty Back Weldment... Back Section Cover... Screw (0-4 x /8") Refer to: "Adjustment Knob Assembly"... Ref 5 Rubber Washer... 6 Side Rail... 7 E-ring... 8 Cap... 9 Bumper... 0 Chair Arm Spline... E-ring... 4 Clevis Pin... Bearing... 4 Link Assembly... 5 E-ring... 6 Bushing... 7 Screw Back Substrate... 9 Clamp Retainer... 0 Clamp... Bushing... 6 MA76500i Always Specify Model & Serial Number E-0 Back Section Rev. /0 All

140 Rev. /0 Item Description Qty. Knob Assembly (incl. items thru 6)... 4 Knob Handle... Needle Thrust Bearing... 4 Spring Washer... 5 O-ring... 6 Thrust Washer... MA765500i Always Specify Model & Serial Number All Adjustment Knob Assembly Rev. 8/ E-

141 a) b) a) b) a) b) MA774600i NOTE: Shroud assemblies include all Snap-on-Guides (item 5) and nutserts. Item Description Qty. Shroud Set (incl. items thru 7): a) Standard base... b) Rotational base... Cladding Set (includes RH, LH, & front pieces)... Outer Shroud Seal... 4 Screw (#8- x /4" truss head) Snap-on-guide Velcro Loop Outer Shroud Assembly... 8 Screw (#8- x /4" Pan Head) Wire Harness Cover: a) Standard base... b) Rotational base... 0 Screw... Middle Outer Shroud Assembly... Middle Inner Shroud Assembly... Inner Shroud... 4 Shroud Spacer: a) Standard base (incl. two #8- x /8" screws)... b) Rotational base... 5 Bumper... 6 Hole Plug... 7 Midmark Nameplate... 8 Control Cord Bracket Kit (incl. bracket, two #8- x /8" screws, & two nuts)... Always Specify Model & Serial Number E- Base Shrouds Rev. (8/8/) All

142 Torque: 55 ft/lb Torque: 50 in/lb Torque: ft/lb Item Description Qty MA8- i Barbed Push Fastener... 4 Column Adaptor Weldment... Screw Tip Cover... 4 Screw (/4-0 x /" Phillips)... 5 Corrugated Tubing Bracket... 6 Cable Restraint Clamp... 7 Screw (/4-0 x /4" Phillips Head)... 8 Rivot Drive Upper Glide Kit (incl. two glides)... 0 Guide Bar... Cap Screw (5/6-8 " Socket Head)... 4 Lower Wire Clamp... Wire Ribbon Guide... 4 Upper Wire Clamp... 5 Cap Screw (/4-0 x /4" Socket Head) (Note: apply permanant thread adhesive) Washer Shoulder Bolt (5/8" x /4")... 8 Washer, nylon... 9 Flange Bearing... 0 Jam Nut (/"-)... Spacer... Always Specify Model & Serial Number All Column Top Assembly Rev. 0/0 E-

143 Item Description Qty Scissors Assembly... Clip Ring (/4")... Gas Spring Ball Stud Gas Spring Kit (includes two springs & four ball clips)... 5 Gas Spring Ball Clip Cotter Pin... 7 Main Bearing Housing... 8 Flange Bearing... 9 Slotted Nut... 0 Slide Weldment (incl. item )... Bearing Insert... Guide Shaft... Bolt (5/6-8 x ") socket head cap Guide Bar... 5 Bolt (5/6-8 x -/") socket head cap Limit Switch Actuator Bolt (/4-0 x ")... 7 Nut (/4-0)... MA760800i Always Specify Model & Serial Number E-4 Scissor Components Rev. / All

144 Refer Refer To: To: Main Base System Actuator Transformer... Test E-8 B-5 Main Electrical PC Board Components - Error Codes... E-6 B- Section D - Wiring Diagrams... D File Name PC Board Replacement a) b) R c) d) R Error Codes MA765700i Test Item Description Qty. Control Cord Bracket Kit (incl. bracket & #0-4 x /" screws)... Power Light (w/wire harness) Refer to: "Section D"... Ref Cable Holder... 4 Connection Port (includes nut) Refer to: "Section D"... Ref 5 Screw (0-4 x /") Lockwasher... 7 Main System Transformer... 8 Rubber Washer ft Cordset (North American) Note: Export.. units require 9A5 International Cordsets. 0 Fuse (6.A, 50V, Type "T", 5 x 0mm)... Power Inlet... Inlet Plate... Cover Plate (models w/o receptacles)... 4 Grounding Plate... 5 Base Casting... 6 Leveling Feet Harness Clip... 8 Screw (#0-4 x /8")... 9 Base Plate... 0 Main PC Board: a) Non-Programmable... b) Non-Programmable (Refurbished)... c) Programmable... d) Programmable (Refurbished)... Standoff... Dust Cap... PC Board Cover... Always Specify Model & Serial Number 64 (-00 & -00) All Standard Base Components Rev. /7/7 E-5

145 Test Refer To: Main System Transformer Test... B-5 Main PC Board - Error Codes... B- Rot. Base PC Board Test... B-8 Section D - Wiring Diagrams... D- Base Shrouds... E Test File Name PC Board Replacement Error Codes a) b) R c) d) R MA76400i Item Description Qty. Screw (0-4 x.50 tt)... Lockwasher (#0 Int. tooth)... Rotation Control PC Board Assy PC Board Standoff Screw (Pan hd phl. 0-4 X /8") Main System Transformer Assy Nutsert (0-4) Transformer Bracket... 9 Refer to: Base Shrouds... Ref. 0 Bolt (/8"-6 x ")... 4 Harness Clip... Brake Pedal... Limit Switch... 4 Compression Spring Switch Hinge Bracket... 6 Upper Base Casting... 7 PC Board Base Plate... 8 Main PC Board: a) Non-Programmable... b) Non-Programmable (Refurbished)... c) Programmable... d) Programmable (Refurbished)... 9 Cable Holder... 0 PC Board Cover... ConnectionPort / Wiring Harness (incl. nut) (Refer to Section D)... Ref. Control Cord Bracket Kit (incl. bracket & screws)... Grounding Plate... Always Specify Model & Serial Number E-6 Rotational Base: Upper Section Rev. 0// 64 (-004 & -005) All

146 Refer To: Electro-magnet Test... B-9 EMI Filter Board Test... B Test Test Item Description Qty. Rotational Base Repair Kit (incl. items thru 7)... Screw(#0-4 x /8")... 8 Rotational Base Cover... 4 Screw (5/6"-8 x ")... 5 Shaft Mount... 6 DU Bearing... 7 Bearing Shaft... 8 Brake Lever Cover... 9 Roll Pin... 0 Brake Lever... Spring... Swivel Plate Assy(incl. items &4)... Swivel Plate... 4 Brake Pad Assembly... 5 Cap Screw (5/6"x8 x /4")... 6 Electromagnet Assembly... 7 Wave Spring... 8 Fuse (50V, 6.A, Type-T, Slo-Blo)... 9 Power Inlet... 0 PC Board (inlet filter)... PC Board Standoff... 4 Screw(#0-4 x /8")... Wire Trough Cover... 4 I/O Harness Assembly... 5 Control Cord Bracket Kit (incl. bracket & two #0-4 x /" screws): a) Midmark models... b) Ritter models... 6 Leveling Screw Outer Seal ft Cordset (North American) Note: Export.. units require 9A5 International Cordsets. Always Specify Model & Serial Number 64 (-004 & -005) All Rotational Base: Lower Section Rev. 5/7/6 E-7

147 Refer To: Position Sensor Test... B-7 0 a) b) File Name Position Sensor Replacement a) b) Test Test Test Test MA765400i Item Description Qty. Back / Foot Sensor Kit (w/bracket) (incl. sensor, bracket, coupler)... Tilt Sensor w/bracket Kit (incl. sensor, bracket, coupler)... Base Sensor Kit (w/bracket) (incl. sensor, bracket, coupler)... 4 Screw (#0-4 x /4")... 5 Cover (Back Sensor)... 6 Screw (#0-4 x /8")... 7 Cover (Tilt Sensor)... 8 Screw (#0-4 x /8") Screw: a) Back & Foot (#8- x /4")... b) Tilt (#8- x /8")... 0 Coupler: a) Back / Tilt / Base... b) Foot... Wire Clamp (Tilt Sensor only)... Always Specify Model & Serial Number E-8 Position Sensors Rev. 9/09 64 V00 thru V775

148 Refer To: Position Sensor Test... B-7 File Name Position Sensor Replacement NOTE: Only programmable models have foot position sensor MA8048i Item Description Qty. Position Sensor Only Kit (includes items thru 4)... 4 Position Sensor (incl. washer & nut)... Coupler (small: for Foot)... 4 Coupler (large: for Base / Back / Tilt)... 5 BASE Sensor Kit w/bracket (includes items & 6)... 6 Bracket Kit: BASE (incl. items 7 & 8)... 7 Mounting Plate... 8 Flange Bushing... 9 BACK / FOOT Sensor Kit w/bracket (includes items & 0)... 0 Bracket Kit: BACK / FOOT (includes items & )... Bracket... Mounting Plate... Screw (#0-4 x /4")... 4 Cover (BACK Sensor)... 5 TILT Sensor Kit w/bracket (includes items & 6)... 6 Bracket Kit: TILT (includes items 7 & 8)... 7 Bracket... 8 Mounting Plate... 9 Cover (TILT Sensor)... 0 Screw (#0-4 x /8")... Screw (#8- x /4")... 5 Screw (#8- x /8")... Wire Clamp... Always Specify Model & Serial Number 64 V775 thru present Position Sensors Rev. 9/09 E-8.

149 Test Refer To: Base Actuator Test... B-6 File Name Base Actuator Replacement Test Test Item Description Qty Test Base Actuator Kit (includes items thru 7)... Motor... Motor Isolator... 4 Coupler... 5 Nut... 6 Shoulder Washer... 7 Actuator Kit w/o motor (includes item 8)... 8 Stop Bolt... 9 Hex Bolt (/4"-0 x /8")... 0 Klip Ring... Screw (5/6"-8 x ")... Retaining Plate... Dowel Pin... 4 Limit Switch Bracket... 5 Limit Switch... 6 Screw (#0- x /8")... MA765600i Always Specify Model & Serial Number E-9 Base Actuator / Limit Switches Rev. /5/ 64 V00 thru V9945

150 Test Refer To: Base Actuator Test... B-6 File Name Base Actuator Replacement Test Test Item Description Qty Test Base Actuator Kit (includes items thru 7)... Motor... Motor Isolator... 4 Coupler... 5 Nut... 6 Shoulder Washer... 7 Actuator Kit w/o motor (includes item 8)... 8 Stop Bolt... 9 Hex Bolt (/4"-0 x /8")... 0 Klip Ring... Screw (5/6"-8 x ")... Retaining Plate... Dowel Pin... 4 Limit Switch Bracket... 5 Limit Switch... 6 Screw (#0- x /8")... MA765600i Always Specify Model & Serial Number 64 V9945 thru present Base Actuator / Limit Switches E-9.

151 Refer To: Back Actuator Test... B * Torque: 8- ft-lbs File Name Back Actuator Replacement Test *The foot limit switch adjustment is critical to ensure proper operation (tolerance: 0.00"). Do not attempt to adjust the individual switches Test Test Item Description Qty. Back Actuator Kit (includes items thru 7)... Coupler... Motor... 4 Isolator... 5 Actuator Kit w/o motor... 6 Nut... 7 Shoulder Washer... 8 Bushing... 9 Crescent Ring... 0 Clevis Pin... Set Screw (5/6-8 x /4)... Lock Washer... Screw (#6- x /6")... 4 Limit Switch Assembly (incl. switches, bracket, & harnesses)... 5 Cotter Pin... 6 Clevis Pin... MA764800i Always Specify Model & Serial Number E-0 Back Actuator / Limit Switches All

152 Refer To: Tilt Actuator Test... B xxx File Name Tilt Actuator Replacement Test Test Test Note: The Tilt UP limit is controlled by the Tilt Position Sensor Torque: 45/55 ft/lb Item Description Qty. Tilt Actuator Kit (includes items thru 7)... Nut... Shoulder Washer... 4 Ball Screw Asssembly... 5 Coupler... 6 Isolator... 7 Motor... 8 E-ring Clevis Pin... 0 Hex Screw (/8"-6 x /4")... Bracket... Clevis Pin... Pivot Screw... 4 Nut... 5 Limit Switch (Tilt Down)... MA76500i Always Specify Model & Serial Number All Tilt Actuator / Limit Switch Rev. (//) E-

153 Refer To: Foot Actuator Test... B-7 Test Test File Name Foot Actuator Replacement *The foot limit switch adjustment is critical to ensure proper operation (tolerance: 0.00"). Do not attempt to adjust the individual switches * Item Description Qty Test Foot Actuator Kit (includes items thru 8)... Motor... Isolator... 4 Coupler... 5 Shoulder Washer... 6 Nut... 7 Ball Screw Asssembly... 8 Bushing... 9 Cotter Pin... 0 Clevis Pin... Crescent Ring... Clevis Pin... Limit Switch Assembly (incl. switches, bracket, & harnesses)... 4 Screw (#6- x /6")... 5 Lock Washer... MA765000i Always Specify Model & Serial Number E- Foot Actuator / Limit Switches Rev. /08 All

154 a) b) Refer To: Foot Control Test... B- Control Cord Continuity Test... B-5 Test Test a) 9A700 b) 9A Test Attention: Verify foot control style (Disc / Linear) when ordering parts Slide strain relief block (on cord) into slot on base Item Description Qty. Linear-Style Foot Control Assembly (includes items thru 9): a) Non-Programmable... b) Programmable... Keypad Assembly: a) Non-Programmable... b) Programmable... Switch Membrane Kit... 4 Base... 5 Cord... 6 Base Plate... 7 Screw (.5 mm x 0mm) Stem Bumper IPX Label (not shown)... NOTE: The linear-style foot control comes standard with all 64 models. MA760600i Always Specify Model & Serial Number Foot Control (Linear-Style) E-

155 a) b) Refer To: Foot Control Test... B- Control Cord Continuity TestB-... B-5 Test Test a) 9A7000 b) 9A Test Attention: Verify foot control style (Disc / Linear) when ordering parts Slide strain relief block (on cord) into slot on base Item Description Qty. Disc-Style Foot Control Assembly (includes items thru 9): a) Non-Programmable... b) Programmable... Keypad Assembly: a) Non-Programmable... b) Programmable... Switch Membrane Kit... 4 Base... 5 Cord... 6 Base Plate... 7 Screw (.5mm x 0mm) Stem Bumper IPX Label (not shown)... MA760700i Always Specify Model & Serial Number E-4 Foot Control (Disc-Style) Rev. //5 This accessory foot control is compatible with all 64 models.

156 Refer To: Hand Control Test... B- Control Cord Continuity Test... B-5 Test a) b) Position strain relief block (on cord) so that it is held in position by bottom housing. a) b) Item Description Qty Test MA760900i Hand Control Assy. (incl. items thru 8) a) Programmable... b) Non-Prog.... Touch Pad: a) Programmable... b) Non-Prog.... Top Housing... 4 Bottom Housing... 5 Retractable Cord Assembly... 6 Hand Control Weight... 7 Screw (.5 x 0) Kit, Hand Control Holsters (Includes Items 9)... 9 Siderail Hand Control Brackets... Always Specify Model & Serial Number All Hand Control Rev. (/9/) E-5

157 Refer To: Isolation Transformer Test... B Test a) b) Item Description Qty. Screw(6- x self-tap)... 4 Receptacle Plate... Screw (0-4 x /8" pan head) Duplex Receptacle... 5 Nut (6- hex) Rubber Washer Screw (0-4 x /" Phillips) Isolation Transformer... MA6580i Always Specify Model & Serial Number E-6 Chair Receptacles Rev. 0/ 64 (-00) All

158 ATTENTION: Refer to Current Color Options link for appropriate numbers to replace -xxx. Refer To: Color Selector... a) 9A7400-xxx b) 9A7500-xxx c) 9A7600-xxx d) 9A7700-xxx e) xxx a) 9A7800-xxx b) 9A7900-xxx c) 9A8000-xxx d) 9A800-xxx a) 9A800-xxx b) 9A800-xxx c) 9A8400-xxx d) 9A8500-xxx Item Description Qty. 4 a) 9A8600-xxx b) 9A8700-xxx c) 9A8800-xxx d) 9A8900-xxx 5 a) 9A9000-xxx b) 9A900-xxx c) 9A900-xxx d) 9A900-xxx 6 a) 9A9400-xxx b) 9A9500-xxx Contoured Headrest (standard on all 64s): a) Premium... b) Premium (Cal. )... c) Ultra-Premium... d) Ultra-Premium (Cal. )... e) PVC-free... Flat Headrest a) Premium... b) Premium (Cal. )... c) Ultra-Premium... d) Ultra-Premium (Cal. )... U-Shaped Headrest a) Premium... b) Premium (Cal. )... c) Ultra-Premium... d) Ultra-Premium (Cal. )... 4 Oval-shaped Headrest a) Premium... b) Premium (Cal. )... c) Ultra-Premium... d) Ultra-Premium (Cal. )... 5 Rectangular-shaped Headrest a) Premium... b) Premium (Cal. )... c) Ultra-Premium... d) Ultra-Premium (Cal. )... 6 Magnetic Headrest a) Premium... b) Ultra-Premium... Always Specify Model & Serial Number The accessory headrests are compatible with all 64 models. Optional Headrests Rev. 4/08 E-7

159 9A4900 a) b) NOTE: The Paper Roll Holder was optional at the initial release of this product. It became standard equipment from serial number V844 thru present. MA7840i Item Description Qty. Paper Roll Holder Assembly (includes item thru 5)... Paper Roll Housing... Screw (#0-4 x /8") Acorn Nut Hanger Clip a) L.H.... b) R.H.... Always Specify Model & Serial Number E-8 Paper Roll Holder Rev. 7/8/4 The paper roll holder is compatible with all 64 models.

160 COMMENTS The Technical Publications Department of Midmark Corporation takes pride in its manuals. We are sure that our manuals will fill all your needs when you are performing scheduled maintenance, servicing, or repairs on a Midmark product. However, if you find any errors or feel there should be a change, addition, or deletion to the manuals, please let us know. We will correct any errors that we are made aware of and we will review requests for changes, additions, or deletions to the manuals and incorporate those requests deemed appropriate. If you see something in one of our manuals that you like or dislike, please let us know. Also, if there is something you feel we could do to produce a better manual, please let us know. If an error is found, please list the page and paragraph/figure in which the error was found along with a brief description of what the error is. If the correction to the error is known, please include that information also. If a change, addition, or deletion is being requested, please list the page and paragraph/figure needing the change, along with a brief description of how you feel the paragraph/figure should be changed. Please fax or mail a copy of this completed comment sheet to: Midmark Corporation ATTN: Technical Publications Dept. 60 Vista Drive Versailles, Ohio 4580 Fax: (97) Number Paragraph/Figure Description

161 ATTENTION: CUSTOMER SERVICE DEPARTMENT IMPORTANT NOTES: ) Use this form for all non-warranty orders only. Warranty orders must be telephoned in ( ). ) FAX number to send order to: ) All emergency orders must be Midmark by :00 pm EST. 4) All underlined headings should be filled in prior to submittal. ADDITIONAL COMMENTS: NAME: SERVICE PARTS FAX ORDERING FORM (Do not tear out this page. Photo copy this page for use only.) DATE: / / TIME: METHOD OF SHIPMENT: PRIORITY: MODEL #: SERIAL #: SALES ORDER # (if applicable) ADDRESS: CITY: STATE: ZIP: CONTACT: PHONE: FAX #: SHIP TO: LINE # PART NUMBER QTY. DESCRIPTION COLOR (if applicable) CREDIT CARD INFORMATION NON-EMERGENCY ORDER {to ship within 7 hours if part(s) are in stock.} EMERGENCY ORDER {to ship within 4 hours if part(s) are in stock.} [see note ] am pm DEALER P.O. #: ACCOUNT #: CARD TYPE CARD # EXP. DATE / / NAME ON CARD SIGNATURE

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163 Midmark Corporation 60 Vista Drive P.O. Box 86 Versailles, OH Fax