Some service parts may not be available for this product!

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1 -00 thru -00 Power Examination Table Service and Parts Manual Serial Number Prefixes: FA, FB NO LONGER IN PRODUCTION Some service parts may not be available for this product! -00 thru -00 FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY SF- Part No Rev. P (//)

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3 TABLE OF CONTENTS Section/Paragraph Page Section/Paragraph Page IMPORTANT INSTRUCTIONS General Safety Instructions... iii Warnings...iii Warranty Instructions... iii SECTION I GENERAL INFORMATION. Scope of Manual How to Use Manual Description of L Power Examination Table Specifications Parts Replacement Ordering Special Tools... - SECTION II TESTING AND TROUBLESHOOTING. Operational Test Troubleshooting Procedures... - SECTION III SCHEDULED MAINTENANCE. Scheduled Maintenance... - SECTION IV MAINTENANCE/SERVICE INSTRUCTIONS. Introduction PC Control Board Removal / Installation Tilt Actuator Removal / Installation Tilt Capacitor Removal / Installation Back Actuator Removal / Installation Back Capacitor Removal / Installation Back Actuator Limit Switch Removal / Installation / Adjustment Headlock Limit Switch Removal / Installation / Adjustment Foot Actuator Removal / Installation Foot Capacitor Removal / Installation Base Actuator Removal / Installation Base Capacitor Removal / Installation Column Assembly Removal / Installation Typical Actuator Motor / Actuator Brake Removal / Installation Base Down Limit Switch Removal / Installation / Adjustment Base Up Limit Switch Removal / Installation / Adjustment Pan Safety Limit Switch Removal / Installation / Adjustment Chain Tension Check / Adjustment Eccentric Bearings Adjustment Hand / Foot Inlet PC Board Removal / Installation Hand Control Panel Removal / Installation. -. Foot Control Interface Board Removal / Installation Typical Foot Pedal Foot Switch Removal / Installation Headrest Adjustment Headrest Handles Handle Stops Adjustment Stirrup Assembly Removal / Installation... - SECTION V SCHEMATICS AND DIAGRAMS. Electrical Schematics / Wiring Diagrams... - SECTION VI PARTS LIST. Introduction Description of Columns Torque Specifications And Important Assembly Notes... - Pictorial Index... - Upholstery Set - Styled (Standard)... - Upholstery Set - Plain (Optional)... - Headrest Components... - Headlock Assembly... -.* Back Components... - Back Actuator Assembly... - Seat Components... - Stirrup Assembly Leg Components... - Foot Actuator Assembly... - Base Cover Components... - Base Electrical Components - Domestic... - Base Electrical Components - Export... - Tilt Actuator Assembly... - Column Components... - Column Assembly... - Base Actuator Assembly... - Hand Control Assembly COMMENTS... - FAX ORDERING FORM... - (*) Indicates that there has been a serial number break for the illustration and that there are additional point page(s) following the original page. Midmark Corporation SF- Rev. /0 Page i Printed in U.S.A.

4 IMPORTANT INSTRUCTIONS General Safety Instructions Safety First: The primary concern of Midmark Corporation is that this power examination table is maintained with the safety of the patient and staff in mind. To assure that services and repairs are completed safely and correctly, proceed as follows: () Read this entire manual before performing any services or repairs on this table. () Be sure you understand the instructions contained in this manual before attempting to service or repair this table. Warnings Throughout this manual are Note, Caution, and Danger paragraphs that call attention to particular procedures. These items are used as follows: Warranty Instructions Refer to the Midmark Limited Warranty printed on the back cover of the Installation and Operation Manual for warranty information. Failure to follow the guidelines listed below will void the warranty and/or render the L Power Examination Table unsafe for operation. In the event of a malfunction, do not attempt to operate the table until necessary repairs have been made. Do not attempt to disassemble table, replace malfunctioning or damaged components, or perform adjustments unless you are one of Midmark s authorized service technicians. Do not substitute parts of another manufacturer when replacing inoperative or damaged components. Use only Midmark replacement parts. NOTE A note is used to amplify an operating procedure, practice or condition.! CAUTION A CAUTION is used for an operating procedure, practice, or condition which, if not correctly followed, could result in equipment damage.! DANGER A DANGER is used for an operating procedure, practice, or condition which, if not correctly followed, could result in loss of life or serious personal injury. Midmark Corporation SF- Page ii Printed in U.S.A.

5 SECTION I GENERAL INFORMATION SECTION I GENERAL INFORMATION. Scope of Manual This manual contains detailed troubleshooting, scheduled maintenance, maintenance, and service instructions for L Power Examination Table. This manual is intended to be used by Midmark s authorized service technicians.. How to Use Manual A. Manual Use When Performing Scheduled Maintenance. () Perform inspections and services listed in Scheduled Maintenance Chart (Refer to para.). () If a component is discovered to be faulty or out of adjustment, replace or adjust component in accordance with maintenance/service instructions (Refer to para.). B. Manual Use When Table Is Malfunctioning And Cause Is Unknown. () Perform an operational test on table (Refer to para.). () Perform troubleshooting procedures listed in Troubleshooting Guide (Refer to para.). () If a component is discovered to be faulty or out of adjustment, replace or adjust component in accordance with maintenance/service instructions (Refer to para.). C. Manual Use When Damaged Component Is Known. () Replace or adjust component in accordance with maintenance/service instructions (Refer to para.).. Description Of L Power Examination Table A. General Description (See Figure -). The L Power Examination Table is an examination table designed specifically for performing general medical examinations and procedures. The major serviceable components of the table are the headlock limit switch, back actuator limit switch, pan safety limit switch, base down limit switch, base up limit switch, tilt actuator, tilt capacitor, back actuator, back capacitor, foot actuator, foot capacitor, base actuator, base capacitor, PC control board, foot inlet PC board, hand inlet PC board, duplex receptacle, hand control panel, foot control interface board, foot control foot switches, stirrup assembly, headlock assembly, chain assembly, and column assembly. B. Theory of Operation (See Figures - and - for wiring diagrams / electrical schematics) Electrical Power: Line voltage ( VAC for domestic units and 0 VAC for export units) is supplied directly to the table's PC control board. There is a transformer and associated follow-on circuitry on the PC control board which reduces the line voltage to VDC. The VDC provides power to operate the circuitry on the PC control board, foot control, and hand control. On domestic units, VAC is continuously supplied to the L.H. and R.H. receptacles. Export units do not have receptacles. Operation Of Tilt, Back, and Foot Actuator Assemblies: When a function is selected using the hand control, the hand control sends a signal to the PC control board. The signal causes the appropriate relay on the PC control board to energize (i.e., if the TILT UP button is depressed on hand control, the Tilt UP relay on PC control board is energized). Line voltage is continuously supplied to all relays on PC control board. So, when a relay is energized, the line voltage flows thru the relay and is applied across the windings of the actuator motor, causing it to run. When the hand control button is released, the relay de-energizes, removing the line voltage from the windings of the actuator motor and causing it to stop running. The Tilt, Back, and Foot actuators are ball screw driven. The actuator assemblies contain a pivot point on the end of the ball screw. If an actuator assembly is run to the end of its stroke, the ball screw shaft spins inside the nut, which allows the actuator assembly to run without damaging or advancing the nut. Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

6 SECTION I GENERAL INFORMATION HEADLOCK ASSEMBLY BACK ACTUATOR BACK ACTUATOR LIMIT SWITCH BACK CAPACITOR PAN SAFETY LIMIT SWITCH HEADLOCK LIMIT SWITCH STIRRUP ASSEMBLY HAND CONTROL PANEL BASE DOWN LIMIT SWITCH FOOT CAPACITOR FOOT ACTUATOR TILT CAPACITOR TILT ACTUATOR BASE UP LIMIT SWITCH CHAIN ASSEMBLY FOOT SWITCHES FOOT CONTROL INTERFACE BOARD BASE CAPACITOR FOOT INLET PC BOARD BASE ACTUATOR COLUMN ASSEMBLY DUPLEX RECEPTACLE PC CONTROL BOARD HAND INLET PC BOARD MA00 Figure -. Major Components Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

7 SECTION I GENERAL INFORMATION The Tilt, Back, and Foot actuators have internal braking mechanisms which disengage when a motor starts running and engage when a motor stops running. Operation Of Base Actuator Assembly: When a BASE UP or BASE DOWN function is selected using the hand control, the hand control sends a signal to the PC control board. The signal causes the base up or down relay, and the base brake relay on the PC control board to energize (i.e., if BASE UP button is depressed on hand control, Base Up relay and the base brake relay on PC control board energizes). Line voltage is continuously supplied to the relays on PC control board. So, when the base up or down relay is energized, the line voltage flows thru the relay and is applied across the windings of the actuator motor, causing it to run. At the same time, line voltage flows thru the brake relay and is applied across the solenoid coil of the base brake, causing the brake to disengage. When the hand control button is released, the relays de-energize, removing line voltage from the coils of the actuator motor, causing it to stop and at the same time, removing line voltage from the solenoid coil of the base actuator brake, causing the base brake to engage. The base actuator is different from the other three actuators; it doesn't freewheel at the end of its stroke limit. This is because the base actuator operates under the heavier loads. To prevent the base actuator from reaching its stroke limits, which could damage the actuator, two limit switches are used; a base down limit switch and a base up limit switch. These limit switches are normally closed (N.C.) switches. When the base actuator reaches the end of the travel (up or down), the appropriate N.C. switch is tripped, opening the switch circuit. The PC control board detects that the switch circuit has been opened and denergizes the motor relay and base brake relay, causing the base actuator motor to stop running and the base brake to engage. Headlock Crash Protection Circuit: To prevent the headlock assembly from accidentally being run into an object such as a chair, foot, or floor, two limit switches are used. The headlock limit switch, located inside the mounting bracket of the headlock assembly, is a normally open (N.O.) switch. However, when the headlock assembly is in its normal position, the limit switch is tripped, creating a closed circuit. The PC control board detects that the circuit is closed and allows all functions to operate normally. If the headlock assembly contacts an object, the mounting bracket of the headlock assembly deflects away from the back assembly; this allows the headlock limit switch to untrip. This creates an open circuit which is detected by the PC control board. The PC control board will not allow the TABLE DOWN, BACK DOWN, and TILT UP functions to run while the headlock limit switch circuit is open (switch is untripped). There is another limit switch called the back actuator limit switch. This limit switch is a N.C. switch which is connected in parallel with the headlock limit switch. If the back actuator limit switch is not tripped, a closed circuit exists which overrides the functionality of the headlock limit switch by bypassing it (allows all functions to run normally even if the headlock limit switch is untripped - an untripped condition exists when headlock mounting bracket is deflected away from back assembly). The back actuator limit switch is tripped when back section is between 0 to 0 above horizontal (in relation to seat section) and untripped when the back section reaches +0. Above +0, the headlock assembly cannot contact the floor and is not needed. Therefore, the back actuator limit switch provides a way of bypassing the headlock limit switch and preventing it from becoming a nuisance (when back section is in full up position, headlock assembly can fall forward due to gravity, which will prevent TABLE DOWN, BACK DOWN, and TILT UP functions from running - a nuisance). Above +0 above horizontal (in relation to seat section), the N.C. back actuator limit switch is untripped creating an closed circuit - at this point the headlock limit switch is bypassed. At +0 or below horizontal (in relation to seat section), the N.C. back actuator limit switch is tripped creating an open circuit - at this point the headlock limit switch is not being bypassed. Pan Safety Limit Switch: The table has a N.O. pan safety limit switch which is monitored by the PC control board. If the pan assembly is not pushed into its fully stowed position, the pan safety limit switch will not be tripped and there will be an open circuit. If the PC control board detects an open circuit, the foot up relay is disabled, preventing movement of the FOOT UP function. This safety feature prevents the table operator from accidentally colliding the foot section into the treatment pan assembly. Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

8 SECTION I GENERAL INFORMATION General Information: All actuator motors have a thermal overload switch which will activate if the actuator assembly is run continuously. The actuator motor was not designed for continuous operation. The normal cool off period for the thermal overload switches is 0-0 minutes. Each actuator motor has a capacitor which provides start up power and motor run power. There is a /0 amp slow blow fuse providing overcurrent protection to the input of the PC control board transformer. There is a amp slow blow fuse to provide over-current protection for each function's relays (i.e, Tilt fuse protects TILT UP and TILT DOWN relays).. Specifications Factual data for the L Power Examination Table is provided in Table -. Also, see Figure -. Description Table -. Specifications Data Weight: Without Shipping Carton... lb (. kg) With Shipping Carton... 0 lb (. kg) Shipping Carton... in. "L" x in. "W" x 0 in. "H" (. cm x 0. cm x. cm) Dimensions (See Figure -): Table Top Length.... in. (. cm) Table Top Length (headrest extended).... in. (0. cm) Table Top Width... in. (. cm) Overall Width... in. (. cm) Table Top Height (Adjustable): /-0.0 in. to 0 +0./-0.0 in. (. cm to 0. cm) Table Speeds (@ 0 Hz.): Base Up... seconds Back Up... 0 seconds Tilt Up... seconds Foot Up... seconds Weight Capacity (Maximum)... lb. (. kg) Electrical Requirements: VAC Unit VAC, 0 HZ, amp, single phase 0 VAC Unit VAC, 0/0 HZ, amp, single phase Power Consumption: VAC Unit... 0 WATTS, 0 VAC 0 VAC Unit... 0 WATTS, 0 VAC Recommended Circuit: A separate (dedicated) circuit is recommended for this table. The table should not be connected to an electrical circuit with other appliances or equipment unless the circuit is rated for the additional load.. Parts Replacement Ordering If a part replacement is required, order the part directly from the factory as follows: () Refer to Figure - to determine the location of the model number and serial number of the table and record this data. () Refer to the Parts List to determine the item numbers of the parts, part numbers of the parts, descriptions of the parts, and quantities of parts needed and record this data (Refer to para.). NOTE Ask the Purchasing Department of the company that owns the table for this information. Otherwise, this information may be obtained from the dealer that sold the table. () Determine the installation date of the table and record this data. () Call Midmark with the recorded information and ask for the Medical Products Technical Services Department. See back cover of this manual for the phone number or use the Fax Order Form (See page - for Fax Order Form). Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

9 SECTION I GENERAL INFORMATION /" /" " (TABLE TOP) " (BASE) 0 (MAX.) (MAX.) 0" (MAX.) " (MIN.) 0 (MAX.) POWER CORD (") " /" MA00 Figure -. Table Dimensions. Special Tools Table - lists all of the special tools needed to repair the table, how to obtain the special tools, and the purpose of each special tool. Table - is on following page. MODEL NUMBER SERIAL NUMBER MA00 Figure -. Model Number / Serial Number Location Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

10 SECTION I GENERAL INFORMATION Table -. Special Tool List Description of Special Tool Manufacturer's Name / Address / Phone Manufacturer's Part Number Purpose of Special Tool Multimeter Commercially available Any type Used to perform continuity and voltage checks Torque Wrench Commercially available A ny type Used to tighten nuts or screws to specified values. Midmark Corporation SF- Page - Printed in U.S.A. Rev. /0

11 SECTION II TESTING AND TROUBLESHOOTING SECTION II TESTING AND TROUBLESHOOTING. Operational Test In order to effectively diagnose the malfunction of the table, it may be necessary to perform an operational test as follows: DANGER Refer to the Operator Manual for complete instructions on operating the table. Failure to do so could result in personal injury. NOTE The Operational Test, for the most part, only describes what should happen when the table is operated. If the table does something other than described, a problem has been discovered. Refer to the Troubleshooting Guide to determine the cause of the problem and its correction. () Plug the table into a grounded, non-isolated, correctly polarized outlet, that has the proper voltage output for the table. NOTE Pan slide assembly should be pushed in fully for the following step. () Depress TABLE UP, TABLE DOWN, BACK UP, BACK DOWN, TILT UP, TILT DOWN, FOOT UP, and FOOT DOWN buttons on hand control. () Observe. The table top should move in the direction corresponding to the button which is being depressed. No section of the table top should drift on its own after hand control button is released. No actuator assembly should make excessive squealing noises. Movement should be steady and should match the speeds listed below: Table Speeds (@ 0 Hz.): Base down to Base up... ± seconds Back down to Back up... 0 ± seconds Tilt down to Tilt up... ± seconds Foot down to Foot up... ± seconds () Lower FOOT DOWN function all the way. Pull the pan slide assembly outward until pan safety limit switch is no longer tripped. Depress FOOT UP pedal on foot control. () Observe. The foot section of table top should not move when FOOT UP pedal is depressed. () Push pan slide assembly inward until pan safety limit switch is tripped. Depress FOOT UP pedal on foot control. () Observe. The foot section of table top should move when FOOT UP pedal is depressed. () Raise BACK UP function all the way up. () Push on headrest assembly (toward foot end of table) until mounting bracket is deflected away from back section. Then depress TABLE DOWN, BACK DOWN, and TILT UP buttons. (0) Observe. The three functions should operate normally while the headrest assembly is being pushed on. () Lower BACK DOWN function all the way down. () Push on headrest assembly until mounting bracket is deflected away from back section. Then depress TABLE DOWN, BACK DOWN, and TILT UP buttons. () Observe. None of the three functions should operate while the headrest assembly is being pushed on. () Raise TABLE UP function all the way up. () Observe. The base actuator should not hum or make any other type of noise when the table top reaches maximum height. The base up limit switch should be tripped, stopping the base actuator from running. () Lower TABLE DOWN function all the way down. Midmark Corporation SF- Page - Printed in U.S.A.

12 TILT UP SECTION II TESTING AND TROUBLESHOOTING HEADREST ASSEMBLY TABLE UP BACK UP TILT UP FOOT UP MIDMARK BASE BASE UP DOWN BACK BACK UP DOWN TILT TILT UP DOWN FOOT FOOT UP DOWN CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF MOVING PARTS TABLE DOWN BACK DOWN TILT DOWN FOOT DOWN BACK SECTION SEAT SECTION MOUNTING BRACKET MIDMARK BASE BASE UP DOWN BACK BACK UP DOWN TILT DOWN FOOT FOOT UP DOWN CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF MOVING PARTS PAN SLIDE ASSEMBLY BACK DOWN FOOT SECTION MIDMARK TABLE DOWN TILT DOWN TABLE UP BACK UP TILT UP FOOT UP FOOT DOWN MA00 Figure -. Operational Test Midmark Corporation SF- Page - Printed in U.S.A.

13 SECTION II TESTING AND TROUBLESHOOTING () Observe. The actuator assembly should not hum or make any other type of noise when the table top reaches minimum height. The base down limit switch should be tripped, stopping the base actuator from running. () If table has optional foot control, depress TABLE UP, TABLE DOWN, BACK UP, BACK DOWN, TILT UP, TILT DOWN, FOOT UP, and FOOT DOWN pedals on foot control. () Observe. The table top should move in the direction corresponding to the pedal which is being depressed.. Troubleshooting Procedures Table - is a Troubleshooting Guide which is used to determine the cause of the malfunction. Table -. Troubleshooting Guide Problem Symptom Probable Cause Check Correction Table will not operate when any of the eight up or down functions are selected. When a hand control button is depressed, its actuator motor does not run or hum. Power cord is not plugged into facility wall outlet. Check to see if power cord is plugged in. Plug power cord into facility wall outlet. Facility circuit breaker providing power to table is tripped. Check to see if facility circuit breaker is tripped. One way of checking this is to plug a lamp into wall outlet that table was plugged into. If circuit breaker is tripped, determine what caused circuit breaker to trip, correct the problem, and then reset / replace circuit breaker. Wire connections loose. Check all wiring connections from power cord to terminal block. Perform continuity check on wires. Use multimeter to check for proper voltage levels. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. /0 amp primary fuse on PC control board is blown. Refer to Figure - for this check. Perform continuity check on fuses. Replace blown fuse. One or both fuses in AC connector receptacle is blown (Export only). Refer to Figure - for this check. Perform continuity check on fuses. Replace blown fuses. PC control board is malfunctioning. Replace suspect PC control board with known working PC control board. Replace PC control board. Refer to para.. Hand control panel is malfunctioning. Replace suspect hand control panel with known working hand control panel. Replace hand control panel. Refer to para.. Hand control coil cord has bad connection or there is a break in coil cord. Replace suspect coil cord with known working coil cord. Replace coil cord. Midmark Corporation SF- Page - Printed in U.S.A.

14 SECTION II TESTING AND TROUBLESHOOTING PRIMARY FUSE (/0 amp) BASE UP L.E.D. BASE DOWN L.E.D. TILT DOWN L.E.D. TILT UP L.E.D. TILT FUSE ( amp) BACK FUSE ( amp) BACK DOWN L.E.D. BACK UP L.E.D. FOOT DOWN L.E.D. FOOT UP L.E.D. FOOT FUSE ( amp) BRAKE/BASE FUSE ( amp) BRAKE/BASE L.E.D. MA00 Figure -. Fuse And Troubleshooting L.E.D.'s Location Midmark Corporation SF- Page - Printed in U.S.A.

15 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction No actions can be initiated from hand control. Table has power, but no functions can be initiated from hand control. Coil cord is not plugged into hand control or receptacle on table properly. Check if coil cord is plugged in properly. Plug coil cord into hand control or receptacle on table. Clean any dirty connections. Hand control panel is malfunctioning. Hand inlet PC board is malfunctioning. Replace suspect hand control panel with known working hand control panel. Replace suspect hand inlet PC board with known working inlet PC board. Replace hand control panel. Refer to para.. Replace hand inlet PC board. Refer to para.0. Cord running from hand inlet PC board to PC control board is disconnected or broken. Check cord to see if it is properly connected. Replace suspect cord with known working cord or perform continuity check on cord. Replace cord. PC control board is malfunctioning. Replace suspect PC control board with known working PC control board. Replace PC control board. Refer to para.. One or more functions cannot be initiated from hand control. Some functions may be initiated with hand control, but at least one may not. Hand control panel of hand control is malfunctioning (switch membrane is malfunctioning). Replace suspect hand control panel with known working hand control panel. Replace hand control panel. Refer to para.. Fuse for non-operating (suspect) function is blown. Refer to Figure - for this check. Perform continuity check on suspect fuse. Refer to Figure - for fuse location. Replace blown fuse. Relay for non-operating (suspect) function is malfunctioning. Refer to Figure - for this check. When hand control button is pressed, observe relay L.E.D. s on PC control board. The L.E.D. for the function which was selected should illuminate to indicate relay is operating correctly. If relay L.E.D. does not illuminate properly, replace PC control board. Refer to para.. No actions can be initiated from foot control. Table has power, but no functions can be initiated from foot control. Coil cord is not plugged into foot control or receptacle on table properly. Check if coil cord is plugged in properly. Plug coil cord into foot control or receptacle on table. Clean any dirty connections. Foot control interface board is malfunctioning. Replace suspect foot control interface board with known working foot control interface board. Replace foot control interface board. Refer to para.. Foot inlet PC board is malfunctioning. Replace suspect foot inlet PC board with known working foot inlet PC board. Replace foot inlet PC board. Refer to para.0. Cord running from foot inlet PC board to PC control board is disconnected or broken. Check cord to see if it is properly connected. Replace suspect cord with known working cord or perform continuity check on cord. Replace cord. PC control board is malfunctioning. Replace suspect PC control board with known working PC control board. Replace PC control board. Refer to para.. Midmark Corporation SF- Page - Printed in U.S.A.

16 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction One or more functions cannot be initiated from foot control. BACK UP and BACK DOWN functions do not work. All other functions work. Some functions may be initiated with foot control, but at least one may not. When BACK UP and BACK DOWN buttons are pressed, table will not move (all other functions work). A footswitch for a function is malfunctioning. Foot control interface board is malfunctioning. Relay for non-operating (suspect) function is malfunctioning. Back capacitor is weak or blown. Thermal overload switch in back actuator motor is activated. amp BACK fuse for BACK UP and BACK DOWN functions is blown. Back actuator assembly is malfunctioning. Wire connections loose. PC control board is malfunctioning Perform a continuity check on footswitch. Replace suspect foot control interface board with known working foot control interface board. Refer to Figure - for this check. When a footswitch is depressed, observe relay L.E.D. s on PC control board. The L.E.D. representing the function which was selected should illuminate to indicate relay is operating correctly. Replace suspect back capacitor with known working back capacitor. _ Refer to Figure - for this check. Perform a continuity check on amp BACK fuse. Replace suspect back actuator assembly with known working back actuator assembly. Check all wiring connections to back actuator assembly. Refer to Figure - for this check. Press BACK UP and then BACK DOWN button while observing the PC control board. The BACK UP L.E.D. should illuminate when the BACK UP button is pressed and the BACK DOWN L.E.D. should illuminate when the BACK DOWN button is pressed. If not, the PC control board is malfunctioning. Replace footswitch. Refer to para.. Replace foot control interface board. Refer to para.. If relay L.E.D. does not illuminate properly, replace PC control board. Refer to para.. Replace back capacitor. Refer to para.xx. Wait 0 to 0 minutes to allow back actuator motor to cool. Replace blown fuse. Replace actuator motor or back actuator assembly. Refer to para. or.. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Replace PC control board. Refer to para.. Midmark Corporation SF- Page - Printed in U.S.A.

17 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction TILT UP and TILT DOWN functions do not work. All other functions work. TABLE UP and TABLE DOWN functions do not work. All other functions work. When TILT UP and TILT DOWN buttons are pressed, the table will not move (all other functions work). When TABLE UP and TABLE DOWN buttons are pressed, the table will not move (all other functions work). Tilt capacitor is weak or blown. Thermal overload switch in tilt actuator is activated. amp TILT fuse for TILT UP and TILT DOWN functions is blown. Tilt actuator assembly is malfunctioning Wire connections loose. PC control board is malfunctioning. Base capacitor is weak or blown. Thermal overload switch in base actuator motor is activated. amp BRAKE / BASE fuse for TABLE UP, TABLE DOWN, and base brake functions is blown. Base actuator assembly is malfunctioning. Wire connections loose. Replace suspect tilt capacitor with known working tilt capacitor. Refer to Figure - for this check. Perform continuity check on amp TILT fuse. _ Replace suspect tilt actuator assembly with known working tilt actuator assembly. Check all wiring connections to tilt actuator assembly. Refer to Figure - for this check. Press TILT UP and then TILT DOWN button while observing the PC control board. The TILT UP L.E.D. should illuminate when the TILT UP button is pressed and the TILT DOWN L.E.D. should illuminate when the TILT DOWN button is pressed. If not, the PC control board is malfunctioning. Replace suspect base capacitor with known working base capacitor. Refer to Figure - for this check. Perform continuity check on amp BRAKE / BASE fuse. _ Replace suspect base actuator assembly with known working base actuator assembly. Check all wiring connections to base actuator assembly and base brake solenoid. Replace tilt capacitor. Refer to para.. Wait 0 to 0 minutes to allow tilt actuator motor to cool. Replace blown fuse. Replace actuator motor or tilt actuator assembly. Refer to para. or.. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Replace PC control board. Refer to para.. Replace base capacitor. Refer to para.. Wait 0 to 0 minutes to allow base actuator motor to cool. Replace blown fuse. See Figure - for fuse location. Replace actuator motor or base actuator assembly. Refer to para. or.. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Midmark Corporation SF- Page - Printed in U.S.A.

18 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction TABLE UP and TABLE DOWN functions do not work. All other functions work - Continued. When TABLE UP and TABLE DOWN buttons are pressed, the table will not move (all other functions work) - Continued. PC control board is malfunctioning. Refer to Figure - for this check. Press TABLE UP and then TABLE DOWN button while observing the PC control board. The TABLE UP L.E.D. and BRAKE/BASE L.E.D. should illuminate when the TABLE UP button is pressed and the TABLE DOWN L.E.D. and the BRAKE/BASE L.E.D. should illuminate when the TABLE DOWN button is pressed. If not, the PC control board is malfunctioning. Replace PC control board. Refer to para.. FOOT UP and FOOT DOWN functions do not work. All other functions work. When FOOT UP and FOOT DOWN buttons are pressed, the table will not move (all other functions work). Brake on base actuator is malfunctioning. Foot capacitor is weak or blown. Thermal overload switch in foot actuator is activated. _ Replace suspect foot capacitor with known working foot capacitor. _ Replace base actuator. Refer to para.. Replace foot capacitor. Refer to para.0. Wait 0 to 0 minutes to allow foot actuator motor to cool. amp FOOT fuse for FOOT Upand FOOT DOWN functions is blown. Foot actuator assembly is malfunctioning. Wire connections loose. PC control board is malfunctioning. Refer to Figure - for this check. Perform continuity check on amp FOOT FUSE. Replace suspect foot actuator assembly with known working foot actuator assembly. Check all wiring connections to foot actuator assembly. Refer to Figure - for this check. Press FOOT UP and then FOOT DOWN button while observing the PC control board. The FOOT UP L.E.D. should illuminate when the FOOT UP button is pressed and the FOOT DOWN L.E.D. should illuminate when the FOOT DOWN button is pressed. If not, the PC control board is malfunctioning. Replace blown fuse. Replace actuator motor or foot actuator assembly. Refer to para. or.. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Replace PC control board. Refer to para.. Midmark Corporation SF- Page - Printed in U.S.A.

19 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction BACK UP function works, but BACK DOWN function does not or BACK DOWN function works, but BACK UP function does not. All other functions work. One function operates properly, but the other does not. Wire connections loose. Check all wiring connections to back actuator assembly. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Back actuator assembly is malfunctioning. PC control board is malfunctioning (relay for up or down function is malfunctioning). Hand control panel of hand control is malfunctioning (switch membrane is malfunctioning). BACK UP or BACK DOWN footswitch is malfunctioning. Replace suspect back actuator assembly with known working back actuator assembly. Refer to Figure - for this check. Press BACK UP and then BACK DOWN button while observing the PC control board. The BACK UP L.E.D. should illuminate when the BACK UP button is pressed and the BACK DOWN L.E.D. should illuminate when the BACK DOWN button is pressed. If not, the PC control board is malfunctioning. Replace suspect hand control panel with known working hand control panel. Perform a continuity check on suspect foot switch. Replace actuator motor or back actuator assembly. Refer to para. or.. Replace PC control board. Refer to para.. Replace hand control panel. Refer to para.. Replace footswitch. Refer to para.. TILT UP function works, but TILT DOWN function does not or TILT DOWN function works, but TILT UP function does not. All other functions work. One function operates properly, but the other does not. Wire connections loose. Check all wiring connections to tilt actuator assembly. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Tilt actuator assembly is malfunctioning. PC control board is malfunctioning (relay for up or down function is malfunctioning. Replace suspect tilt actuator assembly with known working tilt actuator assembly. Refer to Figure - for this check. Press TILT UP and then TILT DOWN button while observing the PC control board. The TILT UP L.E.D. should illuminate when the TILT UP button is pressed and the TILT DOWN L.E.D. should illuminate when the TILT DOWN button is pressed. If not, the PC control board is malfunctioning. Replace actuator motor or tilt actuator assembly. Refer to para. or.. Replace PC control board, Refer to para.. Midmark Corporation SF- Page - Printed in U.S.A.

20 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction TILT UP function works, but TILT DOWN function does not or TILT DOWN function works, but TILT UP function does not. All other functions work - Continued. One function operates properly, but the other does not - Continued. Hand control panel of hand control is malfunctioning (switch membrane is malfunctioning). Replace suspect hand control panel with known working hand control panel. Replace hand control panel. Refer to para.. TILT UP or TILT DOWN footswitch is malfunctioning. Perform a continuity check on suspect footswitch. Replace footswitch. Refer to para.. TABLE UP function works, but TABLE DOWN function does not or TABLE DOWN function works, but TABLE UP function does not. All other functions work. One function operates properly, but the other does not. Wire connections loose. Check all wiring connections to base actuator. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Either base down limit switch or base up limit switch is malfunctioning. Base actuator assembly is malfunctioning. Perform continuity check on N.C limit switches. (Limit switch tripped = open). Replace suspect base actuator assembly with known working base actuator assembly. Replace base up limit switch (Refer to para. or base down limit switch (Refer to para.). Replace actuator motor or base actuator assembly. Refer to para. or.. PC control board is malfunctioning (relay for up or down function is malfunctioning). Hand control panel of hand control is malfunctioning (switch membrane is malfunctioning). TABLE UP or TABLE DOWN footswitch is malfunctioning. Refer to Figure - for this check. Press TABLE UP and then TABLE DOWN button while observing the PC control board. The TABLE UP L.E.D. should illuminate when the TABLE UP button is pressed and the TABLE DOWN L.E.D. should illuminate when the TABLE DOWN button is pressed. If not, the PC control board is malfunctioning. Replace suspect hand control panel with known working hand control panel. Perform a continuity check on suspect footswitch. Replace PC control board. Refer to para.. Replace hand control panel. Refer to para.. Replace footswitch. Refer to para.. Midmark Corporation SF- Page -0 Printed in U.S.A.

21 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction FOOT UP function works, but FOOT DOWN function does not or FOOT DOWN function works, but FOOT UP function does not. All other functions work. One function operates properly, but the other does not. Wire connections loose. Check all wiring connections to foot actuator assembly. Clean any dirty connections. Tighten any loose connections. Replace any damaged connections. Foot actuator assembly is malfunctioning. Replace suspect foot actuator assembly with known working foot actuator assembly. Replace actuator motor or foot actuator assembly. Refer to para. or.. PC control board is malfunctioning (relay for up or down function is malfunctioning). Refer to Figure - for this check. Press FOOT UP and then FOOT DOWN button while observing the PC control board. The FOOT UP L.E.D. should illuminate when the FOOT UP button is pressed and the FOOT DOWN L.E.D. should illuminate when the FOOT DOWN button is pressed. If not, the PC control board is malfunctioning. Replace PC control board. Refer to para.. Hand control panel of hand control is malfunctioning (switch membrane is malfunctioning). Replace suspect hand control panel with known working hand control panel. Replace hand control panel. Refer to para.. FOOT UP or FOOT DOWN footswitch is malfunctioning. Perform a continuity check on suspect footswitch. Replace footswitch. Refer to para.. FOOT UP function will not work. FOOT DOWN function works. Treatment pan assembly is not pushed in all the way. Check that treatment pan assembly is pushed in all the way. Push treatment pan assembly in all the way. Pan safety switch is out of adjustment. Check to see if pan safety limit switch is being tripped by treatment pan assembly. Adjust pan safety limit switch so it is tripped when treatment pan assembly is pushed in all the way. Refer to para.. Pan safety limit switch is malfunctioning. Perform continuity check on pan safety limit switch (switch tripped = closed). Replace pan safety limit switch. Refer to para.. TABLE DOWN, BACK DOWN, and TILT UP functions do not work. All other functions work. Only the TABLE DOWN, BACK DOWN, and TILT UP functions do not work. All other functions work. Headlock limit switch is out of adjustment. Check if headlock limit switch is being tripped when headlock mounting bracket is in normal position (normal position is: not deflected from back section). Limit switch should be tripped. If headlock limit switch is not being tripped, adjust. Refer to para.. Headlock limit switch is malfunctioning. Perform continuity check on N.O. limit switch (tripped = closed). Replace headlock limit switch. Refer to para.. Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

22 SECTION II TESTING AND TROUBLESHOOTING Table -. Troubleshooting Guide - Continued Problem Symptom Probable Cause Check Correction TABLE DOWN, BACK DOWN, and TILT UP functions still move even though headlock limit switch is no longer tripped (headlock mounting bracket has been deflected away from back section allowing headlock limit switch to untrip). Even though headlock limit switch is no longer tripped, TABLE DOWN, BACK DOWN, and TILT UP functions still move. Back actuator limit switch is out of adjustment. Check if back actuator limit switch is being tripped, when BACK function is lowered below +0 degrees. If back actuator limit switch is not being tripped when BACK function is lowered below +0 degrees, adjust limit switch. Refer to para.. The Base, Tilt, or Foot function drifts by itself. Function operates properly otherwise. Motor actuator brake is malfunctioning. Replace suspect actuator brake components with new components. Replace actuator brake components. Refer to para.. Base function drifts by itself. Base function operates properly otherwise. Base brake is malfunctioning. Replace suspect base actuator with known working base actuator. Replace base / brake actuator. Refer to para.. Table moves fine for light patient, but will not move or moves slowly for very heavy patient. Heavy patients cause table to malfunction. Low voltage is being supplied to table. Check voltage at wall receptacle - should be +/- VAC for domestic units and 0 +/- 0 VAC for export units. Correct low voltage situation at wall receptacle. Table overloaded with too heavy of a patient. Maximum weight capacity of table is lbs (. kg). Inform table operator of weight limitation. Capacitor for suspect function is weak. Replace suspect capacitor with known working capacitor. Replace capacitor. Whirling or squeaking noise is heard when an actuator assembly is being run. Noisy actuator. Foreign matter on ball screw threads and / or lack of lubricant. Check for foreign matter on ball screw threads. Check for lack of lubricant on ball screw threads. Clean all foreign matter off of ball screw threads. Coat ball screw threads with STP treatment oil or equivalent. If actuator assembly is still noisy, replace it. Midmark Corporation SF- Page - Printed in U.S.A.

23 SECTION III SCHEDULED MAINTENANCE SECTION III SCHEDULED MAINTENANCE. Scheduled Maintenance periodically on the table. These inspections and services should be performed as often as indicated in Table - is a Scheduled Maintenance Chart which lists the chart. the inspections and services that should be performed Table -. Scheduled Maintenance Chart Interval Inspection or Service What to Do Semi-annually Obvious damage Visually check condition of table for obvious damage such as: cracks in components, missing components, dents in components, or any other visible damage which would cause table to be unsafe to operate or would compromise its performance. Repair table as necessary. Fasteners/hardware Warning and instructional decals Pivot points / moving parts / accessories Hand control Check table for missing or loose fasteners/hardware. Replace any missing hardware and tighten any loose hardware as necessary. Check for missing or illegible decals. Replace decals as necessary. Lubricate all exposed pivot points, moving parts, and accessories with silicone based lubricant. Check that hand control works correctly. Make sure all switch membranes work correctly. If necessary, replace hand control panel. Refer to para.. Foot control (optional) Ball screws of actuator assemblies Drifting of actuator assemblies Foot extension Stirrup assemblies Pan safety limit switch Excessive play in column assembly Head rest Electrical receptacles (Domestic units only) Upholstery Accessories Operational Test Check that foot control works correctly. Make sure all footswitches operate properly. Replace any malfunctioning footswitches. Refer to para.. Extend each actuator assembly and wipe ball screw threads down with a rag to remove foreign matter. Coat as much of the ball screw threads as possible with STP treatment oil or equivalent. Run each actuator assembly to both ends of its travel a couple of times to spread the oil evenly over all of the ball screw threads and then remove excess oil. If oil does not correct a squealing actuator assembly, replace actuator assembly. Check each actuator assembly for drift. Replace actuator assembly brake components as necessary. Refer to para.. Check that foot extension can be easily removed. Make sure foot section is latched securely in place when installed. Check that stirrup assemblies lock into one of three positions. Check for wear. Replace worn components as necessary. Refer to para.. Check that pan safety limit switch is tripped when pan assembly is in fully stowed position. Adjust or replace pan safety limit switch if necessary. Refer to para.. Check that column assembly does not have excessive side to side play. If necessary adjust eccentric bearings or tighten chain. Refer to para. or.. Check that head rest is adjusted properly and will not drift downward on its own under lbs (0. kg) of static weight. If necessary, adjust head rest. Refer to para.. Check that the electrical receptacles are functioning properly. Replace receptacles as necessary. Check all upholstery for rips, tears, or excessive wear. Replace cushions as necessary. Check that all accessories have all of their components and that they function properly. If necessary, repair or replace the accessory. Perform an Operational Test to determine if the table is operating within its specifications (Refer to para.). Replace or adjust any malfunctioning components. Midmark Corporation SF- Page - Printed in U.S.A.

24 SECTION III SCHEDULED MAINTENANCE Midmark Corporation SF- Page - Printed in U.S.A.

25 SECTION IV MAINTENANCE / SERVICE SECTION IV MAINTENANCE / SERVICE INSTRUCTIONS. Introduction DANGER Refer to the Operator Manual for complete instructions on operating the table. Failure to do so could result in personal injury. NOTE Perform an operational test on the table after the repair is completed to confirm the repair was properly made and that all malfunctions were repaired. The following paragraphs contain removal, installation, repair, and adjustment procedures for the table. TERMINAL SCREW JUMPER STRIP MIDMA. PC Control Board Removal / Installation A. Removal MA00 DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove four screws (, Figure -) and PC board cover () from base casting (). () Tag and disconnect eight wire harnesses () from PC control board (). () Tag and disconnect two modular cords () from PC control board (). () Loosen five terminal screws; then tag and disconnect seven wires () from terminals of PC control board (). B. Installation Figure -. PC Control Board Removal / Installation () Install PC control board () on base casting () and secure with six screws (). () Connect seven wires () to terminals of PC control board () and secure by tightening five terminal screws. Make sure jumper strips are installed. () Connect two modular cords () to PC control board (). () Connect eight wire harnesses () to PC control board (). () Install PC board cover () on base casting () and secure with four screws (). () Plug table power cord into wall outlet. () Remove six screws () and PC control board () from base casting (). Midmark Corporation SF- Page - Printed in U.S.A.

26 SECTION IV MAINTENANCE / SERVICE. Tilt Actuator Removal / Installation A. Removal () Raise BASE UP function all the way up. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Lower middle outer shroud assembly () down out of way. () Cut two cable ties securing actuator cable to shaft of tilt actuator assembly (, Figure -). () Remove two screws () and connection cover () from column adapter weldment (). () Cut cable tie securing wire harnesses to capacitor mounting bracket (). () Disconnect actuator wire () from wire (). () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). TABS CATCH SLOTS TABS CABLE TIES MIDMARK CABLE TIE 0 MA00 Figure -. Wires Disconnection / Connection MA000 Figure -. Tilt Actuator Access Midmark Corporation SF- Page - Printed in U.S.A.

27 SECTION IV MAINTENANCE / SERVICE NOTE Steps thru describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. 0 BLOCK () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove tilt capacitor () from capacitor mounting bracket. (0) Remove cap () from tilt capacitor (). 0 DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge tilt capacitor (). () Tag and disconnect two wires (0) from terminals of tilt capacitor (). SPANNER HOLES DANGER Support foot end of table top while removing clevis pin to prevent foot end of table top from falling and striking technician. Failure to comply with these instructions could result in serious personal injury. () Remove two e-rings (, Figure -) and clevis pin () securing base of tilt actuator () to column adapter weldment (). () Remove screw (), two screws (), lockwashers (), and L.H. stirrup housing () from seat weldment (). () Raise seat weldment () up far enough to get access to pivot pin (). Block seat weldment up in this position. () Remove two e-rings (0) from pivot pin (). () Using a hammer and punch, drive pivot pin () out of seat weldment () and remove tilt actuator () from table. MA00 Figure -. Tilt Actuator Removal / Installation B. Installation () Install tilt actuator (, Figure -) on column adapter weldment () and secure with clevis pin () and two e-rings (). NOTE Steps thru describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Connect two wires (0, Figure -) to terminals of tilt capacitor (). () Install cap () on tilt capacitor (). Midmark Corporation SF- Page - Printed in U.S.A.

28 SECTION IV MAINTENANCE / SERVICE () Position bottom of tilt capacitor () on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of the cap (). Make sure tilt capacitor is held firmly in place. () Connect actuator wire () to wire (). () Secure bundle of wire harnesses to capacitor mounting bracket () with a cable tie. () Install connection cover () on column adapter weldment () and secure with two screws (). () Secure actuator cable to tilt actuator () with two cable ties. () Using spanner holes, unscrew adjustable clevis (, Figure -) until it is even with top of actuator rod. (0) Plug table power cord into wall outlet. () Run TILT UP function to extend rod of tilt actuator () to in. (. to 0. cm). () Remove support block; then temporarily connect tilt actuator () to seat weldment () with clevis pin (). CAUTION If tilt actuator does not free wheel at end of stroke, seat weldment is hitting column adapter weldment. Do not allow this condition to exist: premature failure of tilt actuator will result. () Lower TILT DOWN function all the way down (until tilt actuator can be heard free wheeling). () Observe. Seat weldment () should be parallel with top of column weldment adapter (). If seat weldment is parallel with top of column weldment adapter, go to step. If seat weldment is not parallel with top of column weldment adapter, go to step. () Extend TILT UP function to in. (. to 0. cm). () Remove clevis pin () and block seat weldment () in this position. () Using spanner holes, screw adjustable clevis () in or out as determined necessary in step. () Repeat steps thru until seat weldment () is parallel with top of column adapter weldment () when tilt actuator () is free wheeling at the end of its down stroke. () Secure clevis pin () in place with two e-rings (0). (0) Install L.H. stirrup housing () on seat weldment () and secure with two lockwashers (), screws (), and screw (). () Install tabs of R.H. and L.H. outer shrouds (, Figure -) in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds (). () Plug table power cord into wall outlet.. Tilt Capacitor Removal / Installation A. Removal NOTE Steps thru 0 of removal and steps thru of installation describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Raise BASE UP function all the way up. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. Midmark Corporation SF- Page - Printed in U.S.A.

29 SECTION IV MAINTENANCE / SERVICE () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Lower middle outer shroud assembly () down out of way. CABLE TIE () Remove two screws () and connection cover () from column adapter weldment (). TABS () Cut cable tie securing wire harnesses to capacitor mounting bracket (). () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove tilt capacitor () from capacitor mounting bracket. CATCH 0 () Remove cap () from tilt capacitor (). DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. TABS SLOTS () Discharge tilt capacitor (). (0) Tag and disconnect four wires (0) from terminals of tilt capacitor (); then remove tilt capacitor. B. Installation () Connect four wires (0) to terminals of tilt capacitor (). () Install cap () on tilt capacitor (). MIDMARK () Position bottom of tilt capacitor () on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of cap (). Make sure tilt capacitor is held firmly in place. MA00 Figure -. Tilt Capacitor Removal / Installation () Secure bundle of wire harnesses to capacitor mounting bracket () with a cable tie. () Install connection cover () on column adapter weldment () and secure with two screws (). Midmark Corporation SF- Page - Printed in U.S.A.

30 SECTION IV MAINTENANCE / SERVICE () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds (). () Plug table power cord into wall outlet.. Back Actuator Removal / Installation A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. NOTE Steps thru of removal and steps thru of installation describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Unplug table power cord from wall outlet. () Remove upholstered back (, Figure -) from back board (). () Remove four nuts (), screws (), and back board () from back weldment (). () Remove two screws (), lockwashers (), and back actuator limit switch assembly () from back actuator (). () Remove two screws (0) and back capacitor cover () from back weldment (). () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove back capacitor () from capacitor mounting bracket. () Remove cap () from back capacitor (). DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge back capacitor (). () Tag and disconnect two wires () from terminals of back capacitor (). (0) Disconnect actuator wire () from wire (). () Remove snap bushing () from back capacitor cover (). () Pull back actuator wires thru snap bushing (). () While supporting back weldment (, Figure - ), remove two e-rings () and clevis pin () which is securing back actuator () to seat weldment (). Lower back weldment down. () Remove two e-rings (), clevis pin (), and back actuator () from back weldment (). () If back actuator () is being replaced, measure and record Distance A. B. Installation CAUTION Do not drill and install roll pin until later step. () Screw or unscrew clevis (, Figure -) of new back actuator () until Distance A is set. () Install back actuator () on back weldment () and secure with clevis pin () and two e-rings (). () Raise back weldment () into position; then temporarily connect back actuator () to seat weldment () with clevis pin (). Midmark Corporation SF- Page - Printed in U.S.A.

31 SECTION IV MAINTENANCE / SERVICE CATCH TABS ACTUATOR WIRES 0 MA00 Figure -. Wires Disconnection / Connection () Pull back actuator wires thru snap bushing (, Figure -). () Install snap bushing () in back capacitor cover (). () Connect actuator wire () to wire (). () Connect two wires () to terminals of back capacitor (). () Install cap () on back capacitor (). () Position bottom of back capacitor () on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of cap (). Make sure back capacitor is held firmly in place. (0) Install back capacitor cover () on back weldment () and secure with two screws (0). () Install back actuator limit switch assembly () on back actuator () and secure with two lockwashers () and screws (). () Plug table power cord into wall outlet. () Lower BACK DOWN function all the way down (until back actuator can be heard free wheeling). () Observe. Back weldment (, Figure -) should be parallel with seat weldment (). If back weldment is parallel with seat weldment, go to step. If back weldment is not parallel with seat weldment, go to step. Midmark Corporation SF- Page - Printed in U.S.A.

32 SECTION IV MAINTENANCE / SERVICE (0) Using pilot hole as a guide, drill hole thru clevis () with / in. drill bit. () Secure clevis () in position by installing roll pin () in pilot hole. () Check adjustment of back actuator limit switch (Refer to para.). () Coat threads of four screws (, Figure -) with removable threadlocking adhesive (Loctite ). () Install back board () on back weldment () and secure with four screws () and nuts (). () Install upholstered back () on back board ().. Back Capacitor Removal / Installation A. Removal PILOT HOLE /" DRILL BIT DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. DISTANCE "A" () While supporting back weldment (), remove clevis pin () securing clevis () to seat weldment (). () Screw clevis () inward or outward as determined necessary in step. () Connect clevis () to seat weldment () with clevis pin (). () Repeat steps thru until back weldment () is parallel with seat weldment (). () Install two e-rings () on clevis pin (). MA00 Figure -. Back Actuator Removal / Installation NOTE Steps thru of removal and steps thru of installation describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Unplug table power cord from wall outlet. () Remove upholstered back (, Figure -) from back board (). () Remove four nuts (), screws (), and back board () from back weldment (). () Remove two screws () and back capacitor cover () from back weldment (). () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove back capacitor () from capacitor mounting bracket. Midmark Corporation SF- Page - Printed in U.S.A.

33 SECTION IV MAINTENANCE / SERVICE 0 TABS CATCH MA00 Figure -. Back Capacitor Removal / Installation () Remove cap (0) from back capacitor (). DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge back capacitor (). () Tag and disconnect four wires () from terminals of back capacitor (). B. Installation () Connect four wires () to terminals of back capacitor (). () Install cap (0) on back capacitor (). () Position bottom of back capacitor () on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of cap (0). Make sure back capacitor is held firmly in place. () Install back capacitor cover () on back weldment () and secure with two screws (). () Coat threads of four screws () with removable threadlocking adhesive (Loctite ). () Install back board () on back weldment () and secure with four screws () and nuts (). () Install upholstered back () on back board (). () Plug table power cord into wall outlet. Midmark Corporation SF- Page - Printed in U.S.A.

34 SECTION IV MAINTENANCE / SERVICE. Back Actuator Limit Switch Removal / Installation / Adjustment A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove upholstered back (, Figure -) from back board (). () Remove four nuts (), screws (), and back board () from back weldment (). () Remove two screws (), lockwashers (), and partially separate limit switch bracket () from back actuator (). () Disconnect limit switch harness (0) from back actuator limit switch (). () Mark position of two screws () on limit switch bracket (). () Remove two nuts (), two screws (), and back actuator limit switch () from limit switch bracket (). B. Installation NOTE Using marks, made during removal, provides a good starting point in the adjustment of the back actuator limit switch. () Install back actuator limit switch () on limit switch bracket () and secure with two screws () and nuts (), making sure screws () are aligned with marks. () Connect limit switch wire harness (0) to back actuator limit switch (). () Install limit switch bracket () on back actuator () and secure with two lockwashers () and screws (). () Plug table power cord into wall outlet. () Run TILT DOWN function all the way down until seat weldment () is level (± ). NOTE Perform steps and to determine the position (angle) of the back weldment when the back actuator limit switch is being tripped. This is necessary to determine if the limit switch needs to be adjusted. Also, release headrest arm (so headlock limit switch will trip) after step or TABLE DOWN, BACK DOWN, AND TILT UP functions will not work. () Run BACK UP function all the way up. () While pushing in on headrest arm to untrip the headlock limit switch, run BACK DOWN function downward until it automatically stops (should be approximately 0 above horizontal). CAUTION Seat weldment () should be level per step before taking measurement of back weldment angle. Otherwise, incorrect reading will result. () Using a protractor, measure and record angle of back weldment (). () If angle is not 0 ±, go to step 0. If angle is 0 ±, go to step. NOTE If back weldment stops too high (above ), slide back actuator limit switch toward head end of table. If back weldment stop too low (below ), slide back actuator limit switch toward foot end of table. (0) Loosen two nuts () and slide back actuator limit switch () toward head end of table or foot end of table as determined necessary; retighten two nuts (). Midmark Corporation SF- Page -0 Printed in U.S.A.

35 SECTION IV MAINTENANCE / SERVICE HEADREST ARM 0 /" (. mm) 0 LEVEL (0 ) MA00 Figure -. Back Actuator Limit Switch Removal / Installation () Repeat steps thru 0 until back weldment angle is 0 ± when headlock limit switch trips. () Coat threads of four screws () with removable threadlocking adhesive (Loctite ). () Install back board () on back weldment () and secure with four screws () and nuts (). () Install upholstered back () on back board ().. Headlock Limit Switch Removal / Installation / Adjustment A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers / shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove upholstered back (, Figure -0) from back board (). () Remove four nuts (), screws (), and back board () from back weldment (). Midmark Corporation SF- Page - Printed in U.S.A.

36 SECTION IV MAINTENANCE / SERVICE 0 A 0 A ADJUSTMENT /" (. mm) MA00 Figure -0. Headlock Limit Switch Removal / Installation () Remove screw (), washer(s) (), and spring () from back weldment (). () Push headrest () forward until headlock arm weldment (0) is clear of back weldment (). () Disconnect limit switch wire harness () from headlock limit switch (). () Remove two nuts (), screws (), and headlock limit switch () from switch bracket (). B. Installation () Install headlock limit switch () on switch bracket () and secure with two screws () and nuts (). () Connect limit switch wire harness () to headlock limit switch (). () Push headrest () back into normal position [so headlock arm weldment (0) is tight up against back weldment]). () Coat threads of screw () with permanent threadlocking adhesive (Loctite ). () Install spring (), washer(s) (), and screw () on back weldment (). Run screw () thru back weldment and into headlock arm weldment (0). Tighten screw () until end of screw is flush with outside surface of headlock arm weldment (0). Midmark Corporation SF- Page - Printed in U.S.A.

37 SECTION IV MAINTENANCE / SERVICE () Remove setscrew () from headlock arm weldment (0). () Coat threads of setscrew () with permanent threadlocking adhesive (Loctite ). NOTE If setscrew does not provide enough adjustment range to make proper adjustment, bend trip arm of headlock limit switch slightly to make rough adjustment, and then use setscrew to fine tune the adjustment. () Install setscrew () in headlock arm weldment (0). Adjust setscrew until headlock limit switch untrips when headlock arm weldment (0) is deflected any more than / in. (. mm) from back weldment (). NOTE Steps thru of removal and steps thru of installation describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Unplug table power cord from wall outlet. () Squeeze release latches and remove foot board assembly (, Figure -) from foot extension weldment (). () Remove four screws () and front trim () from foot extension weldment (). () Coat threads of four screws () with removable threadlocking adhesive (Loctite ). (0) Install back board () on back weldment () and secure with four screws () and nuts (). RELEASE LATCHES () Install upholstered back () on back board (). () Plug table power cord into wall outlet. () Check for proper functioning and adjustment of headlock limit switch; TABLE DOWN, BACK DOWN, and TILT UP function should not run when headlock arm weldment is deflected more than / in. (. mm) and back section is below +0 degrees.. Foot Actuator Removal / Installation A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers / shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. 0 TABS CATCH ACTUATOR WIRES MA00 Figure -. Wires Disconnection / Connection Midmark Corporation SF- Page - Printed in U.S.A.

38 SECTION IV MAINTENANCE / SERVICE () Remove two screws () and partially remove foot capacitor cover () from foot extension weldment (). () Disconnect wire () from foot actuator wire (). () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove foot capacitor (0) from capacitor mounting bracket. () Remove cap () from foot capacitor (0). DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge foot capacitor (0). () Tag and disconnect two wires () from terminals of foot capacitor (0). LEVEL 0 (0) Remove snap bushing () from foot capacitor cover (). () Pull actuator wires thru snap bushing (). MA000 () Remove hole plug (, Figure -) from foot extension weldment (). () Remove two e-rings () from clevis pin (). () Using a hammer and punch, drive clevis pin () from foot extension weldment (). () Loosen two jam nuts (); Then, while supporting foot extension weldment (), remove two pivot screws () securing foot actuator () to seat weldment (). () Remove foot actuator () from foot extension weldment (). () Remove foot actuator bellows () from shaft of foot actuator (). Figure -. Foot Actuator Removal / Installation B. Installation () Install foot actuator bellows (, Figure -) on shaft of foot actuator (). () Screw adjustable end mount (0) on shaft of foot actuator (). Tighten two setscrews ()./ () Position foot actuator () in foot extension weldment (). () Secure foot actuator () to foot extension weldment () with clevis pin () and two e-rings (). Midmark Corporation SF- Page - Printed in U.S.A.

39 SECTION IV MAINTENANCE / SERVICE () Seat the foot actuator bellows () in foot extension weldment () properly. () Install hole plug () in foot extension weldment (). () Pull actuator wires thru snap bushing (, Figure -). () Install snap bushing () in foot capacitor cover (). () Connect two wires () to terminals of foot capacitor (0). (0) Install cap () on foot capacitor (0). () Position bottom of foot capacitor (0) on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of cap (). Make sure back capacitor is held firmly in place. () Connect foot actuator wire () to wire (). () Install foot capacitor cover () on foot extension weldment () and secure with two screws (). () Install front trim () on foot extension weldment () and secure with four screws (). () Install two jam nuts (, Figure -) on two pivot screws () fully. () Connect foot actuator () to seat weldment () and secure with two pivot screws (). () Plug table power cord into wall outlet. () Run FOOT UP function until the foot actuator () is fully extended (actuator can be heard free wheeling). () Observe. If foot extension weldment () is level with seat weldment (), go to step. If foot extension weldment () is not level with seat weldment (), go to step 0. (0) While supporting foot extension weldment (), remove two pivot screws (). () Loosen two setscrews (); then screw adjustable end mount (0) in or out as determined necessary in step. Tighten two setscrews (). () Repeat steps thru until foot extension weldment () is level with seat weldment (). () Tighten two pivot screws () until they bottom out; then back pivot screws off / to / turn. () Secure two pivot screws () in position by tightening jam nuts (). Tighten jam nuts () to to ft-lbs ( to. kg). () Install foot board weldment (, Figure -) on foot extension weldment (), making sure foot board weldment is properly latched..0 Foot Capacitor Removal / Installation A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers / shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. NOTE Steps thru of removal and steps thru of installation describe the procedure for domestic units. Use these steps as a guide for export units; the steps are similar. () Unplug table power cord from wall outlet. () Squeeze release latches and remove foot board assembly (, Figure -) from foot extension weldment (). () Remove four screws () and front trim () from foot extension weldment (). Midmark Corporation SF- Page - Printed in U.S.A.

40 SECTION IV MAINTENANCE / SERVICE () Tag and disconnect four wires (0) from terminals of foot capacitor (). Remove foot capacitor from table. B. Installation RELEASE LATCHES () Connect four wires (0) to terminals of foot capacitor (). () Install cap () on foot capacitor (). () Position bottom of foot capacitor () on capacitor mounting bracket () and then push the top of the capacitor inward. Using a screwdriver, force the tab of the capacitor mounting bracket down over the catch of cap (). Make sure foot capacitor is held firmly in place. 0 TABS CATCH () Remove two screws () and partially remove foot capacitor cover () from foot extension weldment (). () Using screwdriver, pry tab of capacitor mounting bracket () outward; then remove foot capacitor () from capacitor mounting bracket. () Remove cap () from foot capacitor (). MA00 Figure -. Foot Capacitor Removal / Installation DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Install foot capacitor cover () on foot extension weldment () and secure with two screws (). () Install front trim () on foot extension weldment () and secure with four screws (). () Install foot board weldment () on foot extension weldment (), making sure foot board weldment is properly latched. () Plug table power cord into wall outlet.. Base Actuator Removal / Installation A. Removal () Raise BASE UP function all the way up. () Run TILT, FOOT, and BACK functions to level table top. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Discharge foot capacitor (). Midmark Corporation SF- Page - Printed in U.S.A.

41 SECTION IV MAINTENANCE / SERVICE () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Disconnect modular cords () from inlet PC board (). () Remove four screws (), four screws (), two screws (0), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Place supports under back section and foot section. (0) Remove screw () and cable strap from base casting (). Cut cable strap. () Cut all cable ties securing base actuator wires to other wires. () Remove plastic wrapping () from around wires. () Disconnect base wire harness () and brake wire harness () from PC control board (). () Loosen screw (). () Push base capacitor (0) out of capacitor strap (). () Remove four screws (, Figure -) and PC board cover () from base casting (). BACK SECTION SLOTS TABS FOOT SECTION MIDMARK SUPPORTS 0 MA00 Figure -. Base Actuator Access Midmark Corporation SF- Page - Printed in U.S.A.

42 SECTION IV MAINTENANCE / SERVICE SHAFT CABLE STRAP CABLE TIES 0 MA00 Figure -. Base Actuator Removal / Installation DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge base capacitor (0). () Tag and disconnect two wires () from terminals of base capacitor (0). () Loosen two jam nuts (). DANGER Make sure table top is securely by supports to prevent it from falling once pivot screws are removed. Failure to do so could result in serious personal injury or death. (0) Loosen two jam nuts (). () Remove two pivot screws () and base actuator () from column assembly (). () Loosen three screws (). B. Installation () Remove jam nuts ( and, Figure -) from pivot screws ( and ). () Clean adhesive residue from threads of pivot screws ( and ). () Screw jam nuts ( and ) on pivot screws ( and ) fully. () Coat threads of two pivot screws (), which are directly in front of jam nuts (), with permanent threadlocking adhesive (Loctite ). () Remove two pivot screws () securing base actuator () to column assembly (). Midmark Corporation SF- Page - Printed in U.S.A.

43 SECTION IV MAINTENANCE / SERVICE NOTE When installing pivot screws, adjust pivot screws until shaft of base actuator is centered in bracket. () Install base actuator () on column assembly () and secure with two pivot screws (). Tighten pivot screws to 0 to 0 in-lbs. (. to. N m). () Tighten two jam nuts () to to ft-lbs. ( to. N m). () Install plastic wrapping () around base actuator wires. () Connect brake wire harness () and base wire harness () to PC control board (). () Connect two wires () to terminals of base capacitor (0). (0) Slide base capacitor (0) into capacitor strap () and secure by tightening screw (). () Secure wires together with cable strap. Secure cable strap to base casting () with screw (). () Secure wires together as a bundle with two cable ties. () Install PC board cover () on base casting () and secure with four screws (). () Plug modular cord (, Figure -) into inlet PC board (). () Plug table power cord into wall outlet. () Run TABLE UP and / or TABLE DOWN function until shaft of base actuator (, Figure - ) is aligned with bracket of column assembly (). () Coat threads of two pivot screws (), which are directly in front of jam nuts (), with permanent threadlocking adhesive (Loctite ). NOTE When installing pivot screws, adjust pivot screws until shaft of base actuator is centered in bracket. () Secure shaft of base actuator () on column assembly () and secure with two pivot screws (). Tighten pivot screws to 0 to 0 in-lbs. (. to. N m). () Tighten two jam nuts () to to ft-lbs. ( to. N m). (0) Tighten three screws () to - 0 ft-lbs ( -. N m). () Run TABLE UP function until table top is off of supports; then remove supports from under table top. () Install R.H. and L.H. inner shrouds (, Figure -) on base casting () and secure with two screws (0), four screws (), and four screws (). () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds ().. Base Capacitor Removal / Installation A. Removal () Raise BASE UP function all the way up. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. Midmark Corporation SF- Page - Printed in U.S.A.

44 SECTION IV MAINTENANCE / SERVICE () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Disconnect two modular cords () from inlet PC boards (). () Remove four screws (), four screws (), two screws (0), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Loosen screw (). () Push base capacitor () out of capacitor strap (). DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. () Discharge base capacitor (). (0) Tag and disconnect four wires () from terminals of base capacitor (). B. Installation () Connect four wires () to terminals of base capacitor (). SLOTS TABS MIDMARK 0 MA00 Figure -. Base Capacitor Removal / Installation Midmark Corporation SF- Page -0 Printed in U.S.A.

45 SECTION IV MAINTENANCE / SERVICE () Slide base capacitor () into capacitor strap () and secure by tightening screw (). () Connect modular cords () to inlet PC boards (). () Install R.H. and L.H. inner shrouds () on base casting () and secure with two screws (0), four screws (), and four screws (). () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds ().. Column Assembly Removal / Installation A. Removal () Raise BASE UP function all the way up. () Run TILT, FOOT, and BACK functions to level table top. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Disconnect two modular cords () from inlet PC board (). () Remove four screws (), four screws (), two screws (0), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Place supports under back section and foot section. () Remove screw (, Figure -), capacitor strap (), capacitor bracket (), and base capacitor () from column assembly (). Allow base capacitor to lay off on side. DANGER A capacitor contains stored electricity. Never touch terminals of a capacitor, even if power has been shut off or disconnected. Always discharge capacitor before touching capacitor terminals or wires. Failure to comply with these instruction could result in serious personal injury or death. (0) Discharge base capacitor (). () Loosen two jam nuts (). DANGER Make sure table top is securely sup ported by supports to prevent it from falling once pivot screws are removed. Failure to do so could result in serious personal injury or death. () Remove two pivot screws () securing base actuator () to column assembly (). () Loosen two jam nuts (). Midmark Corporation SF- Page - Printed in U.S.A.

46 SECTION IV MAINTENANCE / SERVICE BACK SECTION SLOTS TABS FOOT SECTION MIDMARK SUPPORTS 0 MA00 Figure -. Column Assembly Access () Remove two pivot screws (0) and partially remove base actuator () from column assembly (). Allow base actuator to lay off on side. () Loosen three screws (). () Remove two screws (, Figure -), lockwashers (), and base up limit switch assembly () from column assembly (). () Remove two screws (), lockwashers (), and base down limit switch assembly () from column assembly (). () Remove two locknuts () and four screws () which secures column assembly () to column adapter weldment (0). () Remove four screws () and washers () securing column assembly () to base weldment (). (0) Remove column assembly () from base weldment (). B. Installation () Position column assembly (, Figure -) in base weldment () and secure with four washers () and screws (). Tighten four screws () to 0 to 0 ft-lbs (. to. N m). () Remove jam nuts ( and, Figure -) from pivot screws ( and 0). () Clean adhesive residue from threads of pivot screws ( and 0). () Screw jam nuts ( and ) on pivot screws ( and 0) fully. Midmark Corporation SF- Page - Printed in U.S.A.

47 SECTION IV MAINTENANCE / SERVICE (0) Plug modular cord (, Figure -) into port of inlet PC board (). SHAFT 0 0 () Run TABLE UP and / or TABLE DOWN function until shaft of base actuator (, Figure -) is aligned with bracket of column assembly (). () Coat threads of two pivot screws (), which are directly in front of jam nuts (), with permanent threadlocking adhesive (Loctite ). NOTE When installing pivot screws, adjust pivot screws until shaft of base actuator is centered in bracket. () Secure shaft of base actuator () to column assembly () and secure with two pivot screws (). Tighten pivot screws to 0 to 0 in-lbs. (. to. N m). () Tighten two jam nuts () to to ft-lbs. ( to. N m). MA00 () Tighten three screws () to - 0 ft-lbs ( -. N m). Figure -. Base Actuator Disconnection / Connection () Coat threads of two pivot screws (0), which are directly in front of jam nuts (), with permanent threadlocking adhesive (Loctite ). NOTE When installing pivot screws, adjust pivot screws until shaft of base actuator is centered in bracket. () Install base actuator () on column assembly () and secure with two pivot screws (0). Tighten pivot screws to 0 to 0 in-lbs (. to. N m). () Tighten two jam nuts () to to ft-lbs. ( to. N m). () Install base capacitor (), capacitor bracket (), and capacitor strap () on column assembly () and secure with screw (). () Run TABLE UP function to align column assembly (, Figure -0) with column adapter weldment (0). () Secure column assembly () to column adapter weldment (0) with four screws () and two locknuts (). () Run TABLE UP function up slightly, and remove supports from under table top. () Install base down limit switch assembly (, figure -) on column assembly () and secure with two lockwashers () and screws (). (0) Adjust base down limit switch (Refer to para.). () Install base up limit switch assembly () on column assembly () and secure with two lockwashers () and screws (). () Plug table power cord into wall outlet. Midmark Corporation SF- Page - Printed in U.S.A.

48 SECTION IV MAINTENANCE / SERVICE 0 MA00 Figure -. Column Assembly Removal / Installation () Adjust base up limit switch (Refer to para.). () Install R.H. and L.H. inner shrouds (, Figure -) on base casting () and secure with two screws (0), four screws (), and four screws (). () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds ().. Typical Actuator Motor / Actuator Brake Removal / Installation (Applies To All Actuators, Except Base Actuator) A. Removal () Remove malfunctioning actuator assembly: Tilt actuator assembly (Refer to para.). Back actuator assembly (Refer to para.). Foot actuator assembly (Refer to para.). () Remove two nuts (, Figure -0) and actuator motor () from actuator mechanism (). () Remove two shoulder washers () from actuator mechanism (). () Remove spacer () and motor coupler () from shaft of actuator motor (). Midmark Corporation SF- Page - Printed in U.S.A.

49 SECTION IV MAINTENANCE / SERVICE () Install motor coupler () on shaft of actuator motor (). () Install two shoulder washers () in actuator mechanism (). KEYS () Align keys of actuator mechanism () shaft with key slots of motor coupler () and then install actuator motor () on actuator mechanism () and secure with two nuts (). NOTE A needle nose pliers should be used to extract the actuator brake from the actuator mechanism. Grasp the raised round plate of the actuator brake with the pliers and pull. () Remove actuator brake () and rubber damper () from shaft of actuator mechanism (). B. Installation KEY SLOT KEY SLOTS Figure -0. Actuator Motor / Actuator Brake Removal / Installation MA00 NOTE The rubber damper must be installed so its flat side faces the inside of the actuator mechanism. The actuator brake must be installed so its flattest side faces outward. The shaft of the actuator mechanism may be turned with a screwdriver to help align the keys of the actuator mechanism shaft with the key slots in actuator brake. () Install rubber damper (), actuator brake (), and spacer () in actuator mechanism (). () Install actuator assembly: Tilt actuator assembly (Refer to para.). Back actuator assembly (Refer to para.). Foot actuator assembly (Refer to para.). () Check actuator assembly for proper operation. The actuator assembly should run normally and should not make a grinding noise. A grinding noise indicates that key slots of motor coupler were not aligned properly with keys of actuator mechanism (a grinding noise also indicates that the motor coupler is being damaged). The actuator assembly should brake properly.. Base Down Limit Switch Removal / Installation / Adjustment A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Remove two screws (), washers (), and partially remove switch bracket () from column weldment (). Midmark Corporation SF- Page - Printed in U.S.A.

50 SECTION IV MAINTENANCE / SERVICE BASE ACTUATOR SLOTS TABS DISTANCE "A" MIDMARK 0 LOCKING TABS MA000 Figure -. Base Down Limit Switch Removal / Installation / Adjustment () Tag and disconnect two wires (0) from terminals of base down limit switch (). () While simultaneously pressing on two locking tabs of base down limit switch (), push switch out of switch bracket (). B. Installation () Push base down limit switch () into switch bracket () until switch "snaps" into place. () Connect two wires (0) to terminals of base down limit switch (). () Install switch bracket () on column weldment () and secure with two washers () and screws (). () Plug table power cord into wall outlet. () Run TABLE DOWN function all the way down (until base down limit switch is tripped and stops the table). CAUTION Distance A should be. to. in. (. to.0 cm). Damage will occur to base actuator if Distance A is less than. (. cm). The base actuator does not free wheel. Running the base actuator to its limit will damage the base actuator. () Measure Distance A on base actuator. () If Distance A is between. to. in. (. to.0 cm), go to step. If Distance A is not between. to. in. (. to.0 cm), go to step. () Raise TABLE UP function until access to base down limit switch () is possible. Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

51 SECTION IV MAINTENANCE / SERVICE NOTE Moving base down limit switch upward will lessen Distance A. Moving base down limit switch downward will increase Distance A. () Loosen two screws (); then adjust switch bracket () up or down as determined necessary in step. Tighten two screws (). (0) Repeat steps thru until Distance A is between. to. in. (. to.0 cm). when base actuator is fully retracted (stopped by base down limit switch). () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds (). C. Adjustment Only () If not already done, perform steps thru of para.a. () Perform steps thru of para.b.. Base Up Limit Switch Removal / Installation / Adjustment A. Removal DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Disconnect modular cords () from inlet PC boards (). () Remove four screws (), four screws (), two screws (0), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Remove two screws (), washers (), and partially remove limit switch bracket () from column weldment (). () Cut cable tie securing wire harness () to base up limit switch (). () Disconnect wire harness () from terminals of base up limit switch (). () Remove two nuts (), screws (0), and base up limit switch () from limit switch bracket (). B. Installation () Install base up limit switch () on limit switch bracket () and secure with two screws (0) and nuts (). () Connect wire harness () to terminals of base up limit switch (). () Secure wire harness () to base up limit switch () with cable tie. () Install switch bracket () on column weldment () and secure with two washers () and screws (). () Connect modular cords () to inlet PC boards (). () Plug table power cord into wall outlet. () Run TABLE UP function all the way up (until base up limit switch is tripped and stops the table). Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

52 SECTION IV MAINTENANCE / SERVICE BASE ACTUATOR SLOTS TABS DISTANCE "A" MIDMARK 0 CABLE TIE 0 MA00 Figure -. Base Up Limit Switch Removal / Installation / Adjustment CAUTION Distance A should be. to. in. (. to. cm). Damage will occur to base actuator if Distance A is greater than. (. cm). The base actuator does not free wheel. Running the base actuator to its limit will damage the base actuator. () Measure Distance A on base actuator. () If Distance A is between. to. in. (. to. cm), go to step. If Distance A is not between. to. in. (. to. cm), go to step 0. (0) Lower TABLE DOWN function approximately in. (. cm). NOTE Moving base up limit switch upward / outward will increase Distance A. Moving base down limit switch inward / downward will decrease Distance A. () Loosen two screws (); then adjust switch bracket () upward / outward or downward / inward as determined necessary in step. Tighten two screws (). () Repeat steps thru until Distance A is between. to. in. (. to. cm). when base actuator is fully extended (stopped by base up limit switch). () Install R.H. and L.H. inner shrouds () on base casting () and secure with two screws (0), four screws (), and four screws (). Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

53 SECTION IV MAINTENANCE / SERVICE () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds (). C. Adjustment Only () If not already done, perform steps thru of para.a. () Perform steps thru of para.b.. Pan Safety Limit Switch Removal / Installation / Adjustment A. Removal 0 DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. PAN SLIDE ASSEMBLY () Remove upholstered seat (, Figure -) from seat board assembly (). () Remove four screws () and seat board assembly () from seat weldment (). () Run FOOT DOWN function all the way down. () Pull pan slide assembly out. () Disconnect wire harness () from pan safety limit switch (). () Remove two screws (), cable clamp (), and pan switch bracket () from seat weldment (). NOTE Note the approximate position of the pan safety limit switch () on pan switch bracket () for installation. () Remove two nuts (0), screws (), and pan safety limit switch () from pan switch bracket (). B. Installation MA00 Figure -. Pan Safety Limit Switch Removal / Installation / Adjustment () Install pan safety limit switch () on pan switch bracket () and secure with two screws () and nuts (0). () Install assembled pan switch bracket () and cable clamp () on seat weldment () and secure with two screws (). Midmark Corporation SF- Page - Printed in U.S.A.

54 SECTION IV MAINTENANCE / SERVICE () Push pan slide assembly all the way in while observing. If pan safety limit switch () is properly tripped by pan slide assembly when pan slide assembly is in stowed position, go to step. If pan safety limit switch () is not properly tripped by pan slide assembly when pan slide assembly is in stowed position, go to step. () Loosen two nuts (0); then slide pan safety limit switch () as determined necessary in step. Tighten two nuts (0). () Repeat steps and until pan safety limit switch () is adjusted properly. () Connect wire harness () to pan safety limit switch (). () Push pan slide assembly all the way in. () Coat threads of four screws () with removable threadlocking adhesive (Loctite ). () Install seat board assembly () on seat weldment () and secure with four screws (). (0) Install upholstered seat () on seat board assembly (). () Plug table power cord into wall outlet. C. Adjustment Only () If not already done, perform steps thru of para.a. () Perform steps thru of para.b.. Chain Tension Check / Adjustment A. Tension Check / Adjustment () Raise TABLE UP function all the way up. () Operate table top until it is in a horizontal position. () Place supports under foot section and back section of table top. Lower TABLE DOWN function slightly until weight of table top is resting on supports. () Unplug table power cord from wall outlet. DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Remove four screws () and R.H. and L.H. middle shrouds (). () Measure slack in chain () at a point / to / in. (. to. cm) above top of outer slide weldment (). () If slack in chain is between / to / in. (. to. mm), go to step. If slack in chain () is not between / to / in. (. to. mm), go to step. () Disconnect modular cords () from inlet PC boards (). (0) Remove four screws (0), four screws (), two screws (), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Loosen locking screw (). () Loosen jam nut (). () Tighten adjusting nut () until slack in chain () is between / to / in. (. to. mm). () Repeat entire procedure to ensure correct adjustment. () Coat threads of jam nut () with permanent threadlocking adhesive (Loctite ). Midmark Corporation SF- Page -0 Printed in U.S.A.

55 SECTION IV MAINTENANCE / SERVICE /" TO /" (. TO. mm) SLOTS TABS -/" TO -/" (. TO. cm) MIDMARK 0 MA00 Figure -. Chain Tension Check / Adjustment () Tighten jam nut (). () Tighten locking screw (). () Connect modular cords () to inlet PC boards (). () Install R.H. and L.H. inner shrouds () on base casting () and secure with two screws (), four screws (), and four screws (0). (0) Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds ().. Eccentric Bearings Adjustment A. Adjustment DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. () Unplug table power cord from wall outlet. () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). Midmark Corporation SF- Page - Printed in U.S.A.

56 SECTION IV MAINTENANCE / SERVICE SLOTS TABS MIDMARK 0 MA00 Figure -. Eccentric Bearing Access () Remove four screws () and R.H. and L.H. middle shrouds (). () Disconnect modular cords () from inlet PC boards (). () Remove four screws (), four screws (), two screws (0), and partially remove R.H. and L.H. inner shrouds () from base casting (). () Run TABLE UP and TABLE DOWN function while observing all eccentric bearings (, Figure -). NOTE The eccentric bearings are divided into four groups for purposes of adjustment. Only one group of bearings can be adjusted at one time. () Note which eccentric bearings () do not rotate during entire movement of column assembly; these are the bearings which need adjusted. () Determine what letter group the eccentric bearing you need to adjust is in; Group A, Group B, Group C, or Group D. () Install / - x - / Bolt(s) in the Tension hole(s) which matches the letter group of eccentric bearing being adjusted; for Group A, bolt is installed in Tension Hole A, for Group B, bolt is installed in Tension Hole B, for Group C, bolts are installed in Tension Holes C, for Group D, bolts are installed in Tension Holes D. Refer to Table - for special tool. (0) Tighten / - x - / Bolt(s) until tension is relieved from the eccentric bearing () being adjusted. Midmark Corporation SF- Page - Printed in U.S.A.

57 SECTION IV MAINTENANCE / SERVICE CONCENTRIC TIRE BEARING ASSEMBLY SPINDLE & BEARING CENTER TENSION HOLE "A" GROUP "B" ECCENTRIC TIRE BEARING ASSEMBLY ECCENTRIC SPINDLE CENTER GROUP "B" OUTER TIRE TENSION HOLE "B" GROUP "A" BOLT () Loosen screw (). () Rotate outer tire of eccentric bearing () in a clockwise direction (as viewed from outside of column) until eccentric bearing becomes harder / or impossible to rotate (meaning the eccentric spindle in the eccentric bearing is forcing the outer tire against the column weldment rail as desired). Secure eccentric bearing in this position by tightening screw () to to 0 ftlbs. ( to. N m). () Remove / - x - / Bolt(s) from Tension hole. () Repeat step thru until all eccentric bearings are properly adjusted. () Connect modular cords (, Figure -) to inlet PC boards (). () Install R.H. and L.H. inner shrouds () on base casting () and secure with two screws (0), four screws (), and four screws (). () Assemble R.H. and L.H. middle shrouds () around inner shrouds () with four screws (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds (). GROUP "D" GROUP "C".0 Hand / Foot Inlet PC Board Removal / Installation A. Removal GROUP "C" TENSION HOLE "D" GROUP "D" TENSION HOLE "C" DANGER Always disconnect the power cord from the wall outlet before removing any of the table's covers/shrouds or making any repairs to prevent the possibility of electrical shock. Failure to comply with these instructions could result in severe personal injury or death. LEFT SIDE OF TABLE HEAD END OF TABLE MA00 () Unplug table power cord from wall outlet. Figure -. Eccentric Bearings Adjustment Midmark Corporation SF- Page - Printed in U.S.A.

58 SECTION IV MAINTENANCE / SERVICE () Remove four screws (, Figure -) and R.H. and L.H. outer shrouds () from column adapter weldment (). () Lower middle outer shroud assembly () down out of way. SLOTS () Unplug modular cord () from port of inlet PC board (). () Remove screw (), wire (), and starwasher () from base casting (0). TABS () Remove two screws (), inlet PC board (), and spacers () from inner shroud (). B. Installation () Install two spacers () and inlet PC board () on inner shroud () and secure with two screws (). MIDMARK () Connect wire () to base casting (0) with starwasher () and screw (). () Plug modular cord () into port of inlet PC board (). () Install tabs of R.H. and L.H. outer shrouds () in slots column adapter weldment () and secure with four screws (), making sure middle outer shroud assembly () is captured by R.H. and L.H. outer shrouds ().. Hand Control Panel Removal / Installation FOOT INLET PC BOARD LOCATION HAND INLET PC BOARD LOCATION A. Removal () Disconnect coil cord (, Figure -) from hand control panel (). 0 () Remove two screws () and bottom end cap () from hand control tube (). () Remove hand control panel () from hand control tube (). MA00 Figure -. Inlet PC Board Removal / Installation Midmark Corporation SF- Page - Printed in U.S.A.

59 SECTION IV MAINTENANCE / SERVICE CONNECTOR CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF MOVING PARTS FOOT FOOT UP DOWN BACK BACK UP DOWN TILT TILT UP DOWN MIDMARK BASE BASE UP DOWN PIN "" A SPRING SPACER CONNECTORS TOP GROOVE A MA00 Figure -. Hand Control Panel Removal / Installation B. Installation () Slide hand control panel () into top groove of hand control tube (). () Install bottom end cap () on hand control tube () and secure with two screws (). () Connect coil cord () to hand control panel ().. Foot Control Interface Board Removal / Installation A. Removal () Remove two screws (, Figure -) and partially separate foot switch bracket () from foot control casting (). () Remove screw (), spacer (), and pedal () from foot switch bracket (). () Remove two screws (), lockwashers (), and partially separate interface board () from foot switch bracket (). () Disconnect modular cord (0) and wire harness () from connectors of interface board (). B. Installation 0 Figure -. Foot Control Interface Board Removal / Installation MA00 CAUTION When connecting wire harness () to interface board, make sure pin "" of connector is not used. This terminal should still be visible after wire harness is connected. Failure to do so will result in foot control malfunction. () Connect wire harness () and modular cord (0) to connectors of interface board (). Midmark Corporation SF- Page - Printed in U.S.A.

60 SECTION IV MAINTENANCE / SERVICE () Install interface board () on standoffs and secure with two lockwashers () and screws (). () Ensure springs and spacers are in position and have not fallen off. () Install pedal () on foot switch bracket () and secure with spacer () and screw () making sure pedal is mounted on pivot spacer. 0 PIVOT SPACER SPRING () Install foot switch bracket () on foot control casting () and secure with two screws ().. Typical Foot Pedal Foot Switch Removal / Installation A. Removal SPACER () Remove two screws (, Figure -0) and partially separate foot switch bracket () from foot control casting (). () Remove screw (), spacer (), and pedal () from foot switch bracket (). () Tag and disconnect two wires () from terminals of foot switch (). () Remove two nuts (), lockwashers (0), screws (), and foot switch () from foot switch bracket (). B. Installation () Install foot switch () on foot switch bracket () and secure with two screws (), lockwashers (0), and two nuts (). () Connect two wires () to terminals of foot switch (). () Ensure springs and spacers are in position and have not fallen off. () Install pedal () on foot switch bracket () and secure with spacer () and screw () making sure pedal is mounted on pivot spacer. () Install foot switch bracket () on foot control casting () and secure with two screws ().. Headrest Adjustment A. Adjustment () Unlock upper lock handle (See Figure -). () Loosen setscrew (, Figure -). () Tighten adjusting screw () slightly; then lock upper lock handle. Repeat this step until Axis A and B have the strongest possible holding power, but operation of upper lock handle is not too difficult. () Tighten setscrew (). Figure -0. Foot Pedal Foot Switch Removal / Installation MA00 () Unlock lower lock handle. Midmark Corporation SF- Page - Printed in U.S.A.

61 SECTION IV MAINTENANCE / SERVICE POINT "A" BACK SECTION NOTE The maximum force required to unclamp a locking handle should be lbs. (. kg) and the maximum force required to clamp a locking handle should be lbs. (. kg). TEST SETUP HEADREST ASSEMBLY (0) Position headrest assembly as shown in TEST SETUP. () Place a lb. (0. kg) weight on headrest assembly at Point A. DANGER Failure to adjust headrest assembly to specifications could result in a failure during a procedure. This could cause severe personal injury to a patient or the need to terminate the procedure. UPPER LOCK HANDLE AXIS "A" AXIS "B" LOWER LOCK HANDLE () Observe. The headrest assembly should support the test weight without drifting downward. If not, repeat entire adjustment procedure. If headrest assembly does not meet test standards, do not use headrest assembly.. Headrest Handles Handle Stops Adjustment () Loosen setscrew (). () Tighten adjusting screw () slightly; then lock lower lock handle. Repeat this step until Axis C has the strongest possible holding power, but operation of lower lock handle is not too difficult. () Tighten setscrew (). AXIS "C" Figure -. Headrest Adjustment MA000 () Lower BACK DOWN function all the way down. A. Adjustment () Loosen nut (, Figure -). () Push on upper lock handle until it reaches a point where the upper lock handle wants to lock itself by going over center; then allow upper lock handle to go over center a few degrees. Hold the upper lock handle in this position and adjust stop screw () so the upper lock handle will be forced to stop in this position each time it is locked. () Tighten nut (). () Loosen nut (). Midmark Corporation SF- Page - Printed in U.S.A.

62

63 SECTION V SCHEMATICS AND DIAGRAMS SECTION V SCHEMATICS AND DIAGRAMS. Electrical Schematics / Wiring Diagrams wiring connections between the electrical components in the table. Figures - and - illustrate the logic/current flow and L.H. RECEPTACLE (. AMPS MAX. EACH) WHITE FOOT CONTROL (OPTIONAL) FOOT SWITCH WIRING HARNESS WHITE WHITE BLACK BLACK TABLE UP GREEN / YELLOW TABLE DOWN BLACK YELLOW YELLOW BLUE BLUE BACK UP WHITE BACK DOWN GREEN / YELLOW BLACK BROWN BROWN ORANGE ORANGE TILT UP HEADLOCK LIMIT SWITCH (SWITCH TRIPPED = CLOSED) [SWITCH IS TRIPPED WHEN HEAD- LOCK ARM IS IN NORMAL POSITION] FOOT CONTROL INTERFACE BOARD TILT TABLE TABLE DOWN UP DOWN N.C. C. R.H. BLACK RECEPTACLE N.O. (. AMPS MAX. EACH) BACK ACTUATOR LIMIT SWITCH (TRIPPED = OPEN) [SWITCH CLOSES WHEN BACK SECTION IS BETWEEN 0 TO 0 ] HARNESS NO N.C. N.O. VIOLET VIOLET WHITE/BLACK WH./BLA. C. WHITE WHITE L BLACK HARNESS NO HARNESS NO PRIMARY FUSE (/0 AMP) 0-0- BLUE ORANGE TAN PINK GREEN HEADREST INTERLOCK PART OF MAIN COILED HARNESS NO FUSE ( AMP) HAND INLET P.C. BOARD (") HAND FOOT INLET P.C. BOARD (") FOOT PC CONTROL BOARD GREEN HARNESS NO PART OF MAIN COILED HARNESS NO WHITE/BLACK RED/BLACK HAND CONTROL PANEL HAND CONTROL PAN SAFETY LIMIT SWITCH (PAN OUT = OPEN) BLACK C. N.C. BLACK BLACK WHITE C. N.O. HARNESS NO N.C. HARNESS NO BLACK GREEN / YELLOW L TILT BACK FOOT BASE & BRAKE TILT BACK FOOT BRAKE BASE WHITE WHITE C. N.O. BASE DOWN LIMIT SWITCH (SWITCH TRIPPED = OPEN) N.C. WHITE N.O. POWER CORD 0 V.A.C. AMP. 0 HZ. SUPPLY (MUST BE GROUNDED) GREEN PART OF MAIN COILED HARNESS NO ORANGE BLUE YELLOW BROWN GREY VIOLET BLACK WHITE RED HARNESS NO BLACK WHITE RED BLACK WHITE RED HARNESS NO BLACK WHITE BLACK BLUE YELLOW RED BASE UP LIMIT SWITCH (SWITCH TRIPPED = OPEN) NOTE: ALL SWITCHES ARE SHOWN IN UNTRIPPED "NORMAL" POSITION WHITE BLACK RED TILT CAPACITOR (- M.F.D.) WHITE BLACK RED BACK CAPACITOR (- M.F.D.) WHITE BLACK RED FOOT CAPACITOR (- M.F.D.) BLUE RED BASE CAPACITOR ( M.F.D.) M TILT ACTUATOR MOTOR M BACK ACTUATOR MOTOR M FOOT ACTUATOR MOTOR Figure -. Wiring Diagram (Used on VAC Units With Serial Numbers FA-000 Thru Present) B M BASE ACTUATOR MOTOR MA000 Midmark Corporation SF- Rev. /0 Page - Printed in U.S.A.

64 SECTION V SCHEMATICS AND DIAGRAMS FOOT CONTROL (OPTIONAL) FOOT SWITCH WIRING HARNESS WHITE WHITE BLACK BLACK YELLOW YELLOW BLUE BLUE BROWN BROWN ORANGE ORANGE FOOT CONTROL INTERFACE BOARD VIOLET VIOLET WHITE/BLACK WH./BLA HAND CONTROL PANEL HAND CONTROL LINE TABLE UP HEADLOCK LIMIT SWITCH (SWITCH TRIPPED = CLOSED) [SWITCH IS TRIPPED WHEN HEAD- LOCK ARM IS IN NORMAL POSITION] CORDSET A00X TABLE DOWN LINE FUSES ( AMP) 0-0- BROWN GREEN / YELLOW BLUE BACK UP 0 V.A.C. AMP. 0/0 HZ. SUPPLY (MUST BE GROUNDED) BACK DOWN TILT UP PART OF 0 V.A.C. INLET HARNESS NO BROWN BLUE PART OF 0 V.A.C. INLET HARNESS NO NUETRAL AC CONNECTOR RECEPTACLE NO TILT DOWN GREEN / YELLOW N.C. N.O. BACK ACTUATOR LIMIT SWITCH (TRIPPED = OPEN) [SWITCH CLOSES WHEN BACK SECTION IS BETWEEN 0 TO 0 ] PART OF MAIN COILED HARNESS NO N.C. N.O. TABLE UP C. C. WHITE WHITE L L TILT BACK FOOT ORANGE WHITE TABLE DOWN BLACK BLACK BLUE RED PRIMARY FUSE (/0 AMP) 0-0- YELLOW BLACK TILT CAPACITOR (. M.F.D.) HARNESS NO HARNESS NO BLUE ORANGE TAN PINK FUSE (N.L.A.) AMP 0 VAC mm x 0mm Type T "Slo-Blo" #.0 TILT BACK FOOT BASE & BRAKE BROWN GREY VIOLET WHITE BLACK WHITE RED BLACK GREEN HEADREST INTERLOCK HARNESS NO RED BACK CAPACITOR (. M.F.D.) PART OF MAIN COILED HARNESS NO HAND INLET P.C. BOARD BLACK WHITE HAND BLACK WHITE WHITE BLACK RED RED (") PC CONTROL BOARD HARNESS NO RED FOOT CAPACITOR (. M.F.D.) BRAKE BLACK WHITE FOOT INLET P.C. BOARD BLACK (") FOOT BLUE BASE YELLOW RED BLUE GREEN RED HARNESS NO PART OF MAIN COILED HARNESS NO BASE CAPACITOR ( M.F.D.) WHITE/BLACK RED/BLACK WHITE WHITE BLACK BLACK BLACK WHITE PAN SAFETY LIMIT SWITCH (PAN OUT = OPEN) C. C. C. N.C. N.O. HARNESS NO N.C. N.O. BASE DOWN LIMIT SWITCH (SWITCH TRIPPED = OPEN) N.C. N.O. BASE UP LIMIT SWITCH (SWITCH TRIPPED = OPEN) NOTE: ALL SWITCHES ARE SHOWN IN UNTRIPPED "NORMAL" POSITION M TILT ACTUATOR MOTOR M BACK ACTUATOR MOTOR M FOOT ACTUATOR MOTOR B M BASE ACTUATOR MOTOR MA0 Figure -. Wiring Diagram (Used on 0 VAC Units With Serial Numbers FB-000 Thru Present) Midmark Corporation SF- Rev. /0 Page - Printed in U.S.A.

65 SECTION VI PARTS LIST. Introduction The illustrated parts list provides information for identifying and ordering the parts necessary to maintain the unit in peak operating condition. Refer to paragraph. for parts ordering information. The parts list also illustrates disassembly and assembly relationships of parts.. Description of Columns The Item column of the parts list gives a component its own unique number. The same number is given to the component in the parts illustration. This allows a part number of a component to be found if the technician can visually spot the part on the illustration. The technician simply finds the component in question on the illustration and notes the item number of that component. Then, he finds that item number in the parts list. The row corresponding to the item number gives the technician the part number, a description of the component, and quantity of parts per subassembly. Also, if a part number is known, the location of that component can be determined by looking for the item number of the component on the illustration. The Part No. column lists the MIDMARK part number for that component. SECTION VI PARTS LIST The Description column provides a physical description of the component. The Qty. column lists the number of units of a particular component that is required for the subassembly. The letters AR denote as required when quantities of a particular component cannot be determined, such as: adhesive. Bullets { } in the Part No. column and the Description column show the indenture level of a component. If a component does not have a bullet, it is a main component of that illustration. If a component has a bullet, it is a subcomponent of the next component listed higher in the parts list than itself that does not have a bullet. Likewise, if a component has two bullets, it is a subcomponent of the next component listed higher in the parts list than itself that has only one bullet.. Torque Specifications and Important Assembly Notes When specific assembly torque specifications, measurements, or procedures have been identified, by our engineering department, as required to assure proper function of the unit, those torque specifications measurements, and procedures will be noted on the parts illustrations. Adherence to these requirements is essential. Midmark Corporation SF- Page - Printed in U.S.A.

66 BASE BASE UP DOWN BACK BACK UP DOWN TILT TILT UP DOWN FOOT FOOT UP DOWN Pictorial Index SECTION VI PARTS LIST MIDMARK CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF MOVING PARTS MIDMARK 0 Used on units with Serial Number FA000 thru Present MA000 Item Part No. Description Page Item Part No. Description Page -00 L Power Examination Table - Domestic (/ Promo [ VAC])... - Upholstery Set-Styled (Standard)... - Upholstery Set-Plain (Optional)... - Head Rest Components... - Headlock Assembly... - Back Components... - Back Actuator Assembly... - Seat Components... - Stirrup Assembly Leg Components Foot Actuator Assembly... - Base Cover Components... - Base Electrical Comp. - Domestic.. - Tilt Actuator Assembly... - Column Components... - Column Assembly... - Base Actuator... - Hand Control Assembly Always Specify Model & Serial Number OPTIONAL ACCESSORIES Refer to MEDICAL ACCESSORY BOOK { } A00 Chair Arm Set Assembly... A 0 A00 Facial Pad... A A00 I.V. Pole... A A00 Vision Block Screen... A A00 Articulating Armboard... A A00 Special Procedures Armboard... A A00 Instrument Tray Assembly... A A00 Knee Crutch Assembly... A A00 Side Rail Assembly... A A000 Foot Control Assembly... A0 A000 (No Longer Available)... A0 0 A000 Base Rail Assembly (FA000 thru FA0)... A0 A000 Knee Crutch Assembly... A0 A00 Caster Base Assembly... A A00 Restraint Belts... A A00 Seat Rail Assembly (FA0 thru Present)... A A00 Siderail Socket Accessry... A A000 Siderail Adapter Accessry... A0 Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

67 BASE BASE UP DOWN BACK BACK UP DOWN TILT TILT UP DOWN FOOT FOOT UP DOWN Pictorial Index SECTION VI PARTS LIST MIDMARK CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF MOVING PARTS MIDMARK 0 Used on units with Serial Number FB000 thru Present MA000 Item Part No. Description Page -00 L Power Examination Table - Export (/ Promo [0 VAC]) Upholstery Set-Styled (Standard)... - Upholstery Set-Plain (Optional)... - Head Rest Components... - Headlock Assembly... - Back Components... - Back Actuator Assembly... - Seat Components... - Stirrup Assembly Leg Components Foot Actuator Assembly... - Base Cover Components... - Base Electrical Comp. - Export... - Tilt Actuator Assembly... - Column Components... - Column Assembly... - Base Actuator... - Hand Control Assembly Item Part No. Description Page OPTIONAL ACCESSORIES Refer to MEDICAL ACCESSORY BOOK { } A00 Chair Arm Set Assembly... A 0 A00 Facial Pad... A A00 I.V. Pole... A A00 Vision Block Screen... A A00 Articulating Armboard... A A00 Special Procedures Armboard... A A00 Instrument Tray Assembly... A A00 Knee Crutch Assembly... A A00 Side Rail Assembly... A A000 Foot Control Assembly... A0 A000 (No Longer Available)... A0 0 A000 Base Rail Assembly (FB000 thru FB0)... A0 A000 Knee Crutch Assembly... A0 A00 Caster Base Assembly... A A00 Restraint Belts... A A00 Seat Rail Assembly (FB0 thru Present)... A A00 Siderail Socket Accessry... A A000 Siderail Adapter Accessry... A0 Always Specify Model & Serial Number Midmark Corporation SF- Rev. / Page -. Printed in U.S.A.

68 Upholstery Set - Styled (Standard) SECTION VI PARTS LIST 0 MA00 Item Part No. Description Qty XX Upholstery Set - Standard (Includes Items thru) {*Specify Color} XX Upholstered Foot Rest {*Specify Color}. 0-0-XX Upholstered Leg Rest {*Specify Color} XX Upholstered Back and Seat Rest {*Specify Color} XX Upholstered Head Rest {*Specify Color} Foot Board Assembly (Refer to "Leg Components" Elsewhere)... Ref Item Part No. Description Qty. Leg Board Assembly (Refer to "Leg Components" Elsewhere)... Ref Seat Board Assembly (Refer to "Seat Components" Elsewhere)... Ref Back Board Assembly (Refer to "Back Components" Elsewhere)... Ref 0 Head Board Assembly (Refer to "Head Rest Components" Elsewhere)... Ref * Click on the Color Selector link above to see available colors. Always Specify Model & Serial Number Rev. /0 Midmark Corporation SF- Page - Printed in U.S.A.

69 Upholstery Set - Plain (Optional) SECTION VI PARTS LIST 0 MA00 Item Part No. Description Qty XX Upholstery Set - Standard (Includes Items thru) {*Specify Color} XX Upholstered Foot Rest {*Specify Color} XX Upholstered Leg Rest {*Specify Color} XX Upholstered Back and Seat Rest {*Specify Color} XX Upholstered Head Rest {*Specify Color} Foot Board Assembly (Refer to "Leg Components" Elsewhere)... Ref Item Part No. Description Qty. Leg Board Assembly (Refer to "Leg Components" Elsewhere)... Ref Seat Board Assembly (Refer to "Seat Components" Elsewhere)... Ref Back Board Assembly (Refer to "Back Components" Elsewhere)... Ref 0 Head Board Assembly (Refer to "Head Rest Components" Elsewhere)... Ref * Click on the Color Selector link above to see available colors. Always Specify Model & Serial Number Midmark Corporation SF- Page - Printed in U.S.A. Rev. /0

70 Headrest Components SECTION VI PARTS LIST 0 0 TORQUE LEGEND 0 ITEM # TORQUE - IN-LBS (. -. N M) 0-0 IN-LBS ( N M) Item Part No. Description Qty. Upholstered Headboard (Refer to "Upholstery Set" Elsewhere)... Ref Velcro Hook Tape Staples (Not Shown)... AR Velcro Hook Tape Staples (Not Shown)... AR Head Board Assembly Painted Bag Clip Screw Headboard Pillow Mount Upholstery Mount Stud Screw Set Screw (Apply Loctite ) Headboard Pivot Pin Headboard Pivot Mount Slide Bar Screw... Headlock Assembly (Refer to "Headlock Assembly")... Ref Always Specify Model & Serial Number MA00 Item Part No. Description Qty Screw (Apply Loctite # ) Headlock Arm Weldment Hole Plug Screw (Apply Loctite # ) Flanged Bearing Set Screw (Apply Loctite# ) Cable Clamp Screw Screw (Apply Loctite # ) Spring... Back Weldment (Refer to "Back Components")... Ref Nut Switch Bracket... Headlock Limit Switch Harness (Refer to "Wiring Diagram")... Ref Limit Switch Screw Washer... Midmark Corporation SF- Page - Printed in U.S.A.

71 Headlock Assembly SECTION VI PARTS LIST 0 0 Used on units with Serial Number FA-000 thru FA- MA00 Item Part No. Description Qty Two Arm Headlock Assembly (Includes Items thru )... (N.S.P.) Screw... (N.S.P.) Set Screw... (N.S.P.) Headlock Head... (N.S.P.) Dowel Pin... (N.S.P.) Pivot Bar... (N.S.P.) Draw Bar... (N.S.P.) Head Pivot Handle Weldment... (N.S.P.) Denotes "Non Servicable Part" Always Specify Model & Serial Number Item Part No. Description Qty. (N.S.P.) Dowel Pin... (N.S.P.) Jam Nut... 0 (N.S.P.) Set Screw... (N.S.P.) Screw... (N.S.P.) Screw (Apply Loctite # )... (N.S.P.) Headlock Base... (N.S.P.) Pivot Bar... (N.S.P.) Draw Bar... Midmark Corporation SF- Rev. 0/0 Page - Printed in U.S.A.

72 Headlock Assembly SECTION VI PARTS LIST 0 Used on units with Serial Number FA-0 & FB-000 thru Present 0 MA0 Item Part No. Description Qty Two Arm Headlock Assembly (Includes Items thru )... (N.S.P.) Screw... (N.S.P.) Set Screw... (N.S.P.) Headlock Head... (N.S.P.) Dowel Pin... (N.S.P.) Pivot Bar... (N.S.P.) Draw Bar... (N.S.P.) Head Pivot Handle Weldment... (N.S.P.) Dowel Pin... Item Part No. Description Qty. (N.S.P.) Jam Nut... 0 (N.S.P.) Set Screw... (N.S.P.) Screw... (N.S.P.) Screw (Apply Loctite # )... (N.S.P.) Headlock Base... (N.S.P.) Pivot Bar... (N.S.P.) Draw Bar Single Arm Headlock (includes item only)... (N.S.P.) Denotes "Non Servicable Part" Always Specify Model & Serial Number Midmark Corporation SF- Rev. 0/0 Page -. Printed in U.S.A.

73 Back Components SECTION VI PARTS LIST MA00 Item Part No. Description Qty. Item Part No. Description Qty. Upholstered Back and Seat Rest (Refer to "Upholstery Set" Elsewhere)... Ref Back Board Assembly Velcro Hook Tape Staples (Not Shown)... AR Stud Paper Tear Strip Assembly Paper Roll Holder L.H. Paper Roll Slide (Shown) R.H. Paper Roll Slide (Not Shown) Lockwasher Screw Nut Joint Connecting Nut Joint Connecting Bolt Hand Control Bracket... Seat Weldment (Refer to "Seat Components" Elsewhere)... Ref E-Ring Roll Pin Clevis Pin Back Capacitor Cover Snap Bushing Capacitor Cap (Domestic Only) Capacitor (Domestic) Capacitor (Export)... Always Specify Model & Serial Number Screw Capacitor Bracket (Domestic) Capacitor Bracket (Export) Snap Bushing Screw Sound Damp... Back Actuator (Refer to "Back Actuator Assembly" Elsewhere)... Ref Back Actuator Harness (Refer to "Wiring Diagram" Elsewhere)... Ref Cable Tie Nut Limit Switch Screw Cable Clamp Back Weldment Siderail Bar Roll Pin Screw Label Mounting Plate Pop Rivet... 0 Serial Number Label U.L./C.U.L. Label (Domestic Only) Patent Number Label Whizlock Screw... Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

74 Back Actuator Assembly SECTION VI PARTS LIST 0 MA00 Item Part No. Description Qty. Item Part No. Description Qty Back Actuator Assembly - Domestic (Includes Items thru ) Back Actuator Assembly - Export (Includes Items thru ) Back Actuator (Less Motor)... Nut Shoulder Washer Actuator Brake... Always Specify Model & Serial Number Motor Coupler Motor - Domestic (Less Terminals) Motor - Export (Less Terminals) Terminal (Shown) Flag Terminal (Not Shown) Roll Pin Caution Label... Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

75 Seat Components SECTION VI PARTS LIST MA00 Item Part No. Description Qty. Item Part No. Description Qty. Upholstered Back and Seat Rest (Refer Nut... to "Upholstery Set" Elsewhere)... Ref Pan Switch Bracket Seat Board Assembly Cable Tie Velcro Hook Tape Nut Staples (Not Shown)... AR Tilt Cover Joint Connecting Bolt... Column Adapter Weldment (Refer to Stud... "Base Electrical Comp." Elsewhere). Ref Paper Tear Strip Assembly Flanged Bearing Treatment Pan Cable Clamp Drain Pan Assembly (Includes Shoulder Screw (Apply Loctite Items and )... # ) Pop Rivet... Back Weldment (Refer to "Back Pan Slide... Components" Elsewhere)... Ref Handle (Apply Loctite # ) Seat Weldment Screw... Tilt Actuator (Refer To "Tilt Actuator Cable Clamp... Assembly" Elsewhere)... Ref Pan Limit Switch Harness (Refer to Clevis Pin... "Wiring Diagram" Elsewhere)... Ref E-Ring Limit Switch Hex Jam Nut Screw... Always Specify Model & Serial Number Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

76 Stirrup Assembly SECTION VI PARTS LIST 0 0 This assembly is no longer available. It has been replaced by Note: This kit contains two complete stirrup assemblies. Item Part No. Description Qty. MA00 Item Part No. Description Qty Stirrup Assembly (Includes Items Pivot Boss... thru ) R.H. Stirrup Mount Weldment Stirrup L.H. Stirrup Mount Weldment Roll Pin R.H. Stirrup Housing Pivot Block L.H. Stirrup Housing Horizontal Bar Hole Plug Set Screw Screw Screw Lockwasher Bracket Stirrup Tag Spring... Always Specify Model & Serial Number Midmark Corporation SF- Rev. 0/0 Page -0 Printed in U.S.A.

77 Leg Components SECTION VI PARTS LIST TORQUE LEGEND ITEM # TORQUE - FT-LBS ( -. N M) MA00 Item Part No. Description Qty. Item Part No. Description Qty. Upholstered Foot Rest (Refer to E-Ring... "Upholstery Set" Elsewhere)... Ref Clevis Pin Joint Connecting Bolt... Foot Actuator (Refer to "Foot Actuator 0-0- Velcro Hook Tape... Assembly" Elsewhere)... Ref Staples (Not Shown)... AR Screw Foot Board Assembly Strain Relief Bushing Footboard Weldment Pivot Screw Nut Jam Nut L.H. Torsion Spring (Shown) Jam Nut R.H. Torsion Spring (Not Shown) Flanged Bearing Split Snap Bushing Shoulder Screw Foot Capacitor Cover... Seat Weldment (Refer to "Seat Snap Bushing... Components" Elsewhere)... Ref Capacitor Bracket (Domestic) Foot Actuator Bellow Capacitor Bracket (Export) Front Trim Screw Adhesive Magnet Capacitor (Domestic) Leg Board Assembly Capacitor (Export) Velcro Hook Tape Capacitor Cap (Domestic Only) Staples (Not Shown)... AR Foot Extension Weldment... Upholstered Leg Rest (Refer to Hole Plug... "Upholstery Set" Elsewhere)... Ref Always Specify Model & Serial Number Midmark Corporation SF- Page - Printed in U.S.A.

78 Foot Actuator Assembly SECTION VI PARTS LIST 0 MA00 Item Part No. Description Qty. Item Part No. Description Qty Foot Actuator Assembly - Domestic (Includes Items thru 0) Foot Actuator Assembly - Export (Includes Items thru 0) Back Actuator (Less Motor)... Nut Shoulder Washer Actuator Brake... Always Specify Model & Serial Number Motor Coupler Motor - Domestic (Less Terminals) Motor - Export (Less Terminals) Terminal (Shown) Flag Terminal (Not Shown) Adjustable End Mount Set Screw Caution Label... Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

79 Base Cover Components SECTION VI PARTS LIST TORQUE LEGEND ITEM # TORQUE 0-0 FT-LBS (. - N M) 0 MA0 Item Part No. Description Qty. Item Part No. Description Qty Screw Nutsert Fuse Label Snap-on Glide Guide L.H. Inner Shroud Assy.-Domestic (Incl Cover Plate... Items thru 0 [Qtys. for {} Shroud]) P.C. Board Cover L.H. Inner Shroud Assy.-Export (Incl Screw... Items thru 0 [Qtys. for {} Shroud]) Cover Gasket R.H. Inner Shroud Assy.-Domestic (Incl Outer Shroud Seal (Qty. = Feet)... Items thru 0 [Qtys. for {} Shroud]) Screw R.H. Inner Shroud Assy.-Export (Incl Washer... Items thru 0 [Qtys. for {} Shroud]) Outer Shroud Assembly (Includes Nutsert... Items thru [Qtys. for {} Shroud]) Snap-on Glide Outer Shroud Seal (Qty. = Total Feet) Bumper Velcro Loop Screw (Not Shown) Nutsert Glide Nylon Stem Bumper Nutsert Screw (Domestic Units Only) Snap-on Glide Leveling Screw Model Decal - (L) Machined Base Screw... Column (Refer to "Column Assembly" Middle Shroud Assembly (Includes Elsewhere)... Ref Items 0 thru [Qtys. for {} Shroud]) Receptacle Plate (Domestic) Velcro Loop Bottom Cover Nutsert Glide Caution Label... Always Specify Model & Serial Number Midmark Corporation SF- Rev. /0 Page - Printed in U.S.A.

80 Base Electrical Components (Domestic) TORQUE LEGEND ITEM # TORQUE - FT-LBS (. -. N M) - FT-LBS (. -. N M) B 0 SECTION VI PARTS LIST 0 B 0 A 0 A MA00 Item Part No. Description Qty Nut Column Adapter Weldment Screw (Apply Loctite # )... Column (Refer to " Column Components" Elsewhere)... Ref Screw Receptacle Mounting Weldment Screw Duplex Receptacle Nut Capacitor Bracket Capacitor Strap Screw Motor Run Capacitor Spacer Control Inlet P.C. Board Screw Lockwasher... Inner Shroud Assembly (Refer to "Base Cover Components" Elsewhere) Screw Power Inlet Bracket Strain Relief Bushing Cord Tag Cord Assembly... Always Specify Model & Serial Number Item Part No. Description Qty. N.L.A. P.C. Board Assembly Screw Clevis Pin E-Ring... Tilt Actuator (Refer To "Tilt Actuator... Assembly" Elsewhere)... Ref Cable Tie (." Long) Capacitor Cap Capacitor Screw Capacitor Bracket Spring Bracket Wire Clip... Main Harness (Refer to "Wiring Diagram" Elsewhere)... Ref Extension Spring Cable Clamp (/") Cable Clamp (/") Connection Cover Screw Cable Tie (." {Not Shown}) Cable Tie (." {Not Shown}) Cable Tie W/ Mtg. Hole (Not Shown) " Spiral Wrap (Not Shown)... Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

81 Base Electrical Components (Export) TORQUE LEGEND SECTION VI PARTS LIST ITEM # TORQUE - FT-LBS (. -. N M) - FT-LBS (. -. N M) B 0 B 0 A 0 A Item Part No. Description Qty Nut Column Adapter Weldment Screw (Apply Loctite # )... Column (Refer to " Column Components" Elsewhere)... Ref Screw Receptacle Mounting Weldment Screw Fuseholder Fuse Capacitor Bracket Capacitor Strap Screw Motor Run Capacitor Spacer Control Inlet P.C. Board Screw Lockwasher... Inner Shroud Assembly (Refer to "Base Cover Components" Elsewhere) Screw Appliance Inlet Bracket AC Connector receptacle... N.L.A. Denotes "No Longer Available" Always Specify Model & Serial Number MA00 Item Part No. Description Qty Connection Cover Cable Clamp (/")... N.L.A. P.C. Board Assembly Screw Clevis Pin E-Ring... Tilt Actuator (Refer To "Tilt Actuator... Assembly" Elsewhere)... Ref Cable Tie (." Long) Cable Clamp (/") Capacitor Screw Capacitor Bracket Spring Bracket Wire Clip... Main Harness (Refer to "Wiring Diagram" Elsewhere)... Ref Extension Spring Screw Cable Tie (." {Not Shown}) Cable Tie (." {Not Shown}) Cable Tie W/ Mtg. Hole (Not Shown) " Spiral Wrap (Not Shown)... Midmark Corporation SF- Rev. /0 Page - Printed in U.S.A.

82 Tilt Actuator Assembly SECTION VI PARTS LIST 0 MA0000 Item Part No. Description Qty. Item Part No. Description Qty Tilt Actuator Assembly - Domestic (Includes Items thru 0) Tilt Actuator Assembly - Export (Includes Items thru 0) Back Actuator (Less Motor)... Nut Shoulder Washer Actuator Brake Motor Coupler... Always Specify Model & Serial Number Motor - Domestic (Less Terminals) Motor - Export (Less Terminals) Terminal (Shown) Flag Terminal (Not Shown) Adjustable End Mount (Includes Item 0)... 0 Bronze Bearing Caution Label... Midmark Corporation SF- Rev. / Page - Printed in U.S.A.

83 Column Components SECTION VI PARTS LIST TORQUE LEGEND ITEM # TORQUE IN-LBS (. -. N M) - FT-LBS (0. -. N M) Item Part No. Description Qty Screw Lockwasher Limit Switch Bracket Nut Switch Screw... Limit SwitchWiring (Refer to "Wiring Diagram" Elsewhere)... Ref Panel Mount Switch Switch Bracket Coated Pivot Screw (Apply Loctite # )... N.L.A. denotes "No Longer Available" Always Specify Model & Serial Number MA00 Item Part No. Description Qty Jam Nut V. Domestic Column Kit (Refer to "Column Assembly" Elsewhere [Includes Capacitor and Actuator])... Ref Column Kit (Refer to (Refer to Column Assy. Elsewhere [Less Capacitor & Actuator])Ref Base Actuator (Refer to "Base Actuator Assembly" Elsewhere"... Ref Coated Pivot Screw w/ Hole (Apply Loctite # ) Cable Tie (Not Shown) Cable Tie (Not Shown)... Midmark Corporation SF- Rev. 0/0 Page - Printed in U.S.A.

84 Column Assembly SECTION VI PARTS LIST TORQUE LEGEND ITEM # TORQUE - 0 FT-LBS (0. -. N M) - 0 FT-LBS ( -. N M) - FT-LBS (. -. N M) (With Actuator Installed) - 0 FT-LBS ( -. N M) MA00 Item Part No. Description Qty. Column Assembly (Includes Items thru ) Outer Slide Weldment Middle Slide Weldment Inner Slide Weldment Lower Actuator Support Tire / Spindle / Bearing Assembly Tire / Spindle / Bearing Assembly Tire / Spindle / Bearing Assembly Tire / Spindle / Bearing Assembly Chain Assembly (Incl. Connectors) Sleeve Bearing Sprocket Leaf Chain Screw Set Screw... Always Specify Model & Serial Number Item Part No. Description Qty Screw Screw Screw Jam Nut (Apply Loctite # ) Chain Pin Chain Roller Retaining Ring - External Washer Drawbolt Chain End Chain End Leaf Chain End Chain Pin Sprocket Hub Screw Caution Label... Midmark Corporation SF- Rev. (//) Page - Printed in U.S.A.

85 Base Actuator Assembly SECTION VI PARTS LIST Item Part No. Description Qty Base Actuator Assembly - Domestic (Includes Items thru )... (N.L.A.) Base Actuator Assembly - Export (Includes Items thru )... N.L.A. denotes "No Longer Available" Always Specify Model & Serial Number MA000 Item Part No. Description Qty Connector ( Circuit) Connector ( Circuit) Socket Terminal Flag Terminal... Midmark Corporation SF- Rev. 0/0 Page - Printed in U.S.A.

86 Hand Control Assembly SECTION VI PARTS LIST MIDMARK BASE UP BACK BASE DOWN UP TILT BACK DOWN UP FOOT TILT DOWN UP CAUTION - ATTACH CONTROL TO MOUNTING WHEN NOT IN USE. KEEP CORD CLEAR OF FOOT DOWN MOVING PARTS Item Part No. Description Qty Hand Control Assenbly (Includes Items thru ) Modular Coil Cord Switch Panel... Always Specify Model & Serial Number MA00 Item Part No. Description Qty Top End Cap Hand Control Tube Bottom End Cap Screw... Midmark Corporation SF- Page -0 Printed in U.S.A.

87 The Technical Publications Department of Midmark Corporation takes pride in its publications. We are sure that our manuals will fill all of your needs when you are performing scheduled maintenance, servicing, or repairs on a Midmark product. Page(s) and Paragraph(s) Needing Changed: COMMENTS However, if you find any errors or feel that there should be a change, addition, or deletion to a manual, please let us know! Description of Error or Desired Change: Please fax or mail a copy of this completed comment sheet to: Midmark Corporation ATTN: Technical Publications Department 0 Vista Drive Versailles, Ohio 0 Fax: () - Midmark Corporation 000 SF- Page - Printed in U.S.A.

88 FAX ORDERING FORM (SERVICE PARTS ONLY) NOTES: ALL BLOCKED AREAS MUST BE COMPLETED. USE FOR NON-WARRANTY FAX ORDERS ONLY. WARRANTY ORDERS MUST BE TELEPHONED IN (-00-MIDMARK). ATTENTION: SERVICE DEPARTMENT FAX#: -- ACCT #: P.O. #: DATE: NAME: SHIP TO: ADDRESS: CITY, ST.: CONTACT: PHONE: NON-EMERGENCY ORDER - TO SHIP WITHIN HOURS IF PART(S) IN STOCK. EMERGENCY ORDER - TO SHIP WITHIN HOURS IF PART(S) IN STOCK (IF ORDER IS RECEIVED BEFORE :00 P.M. E.S.T). SEND NOTIFICATION IF PARTS ARE NOT AVAILABLE TO SHIP WITHIN HOURS VIA OR FAX TO: METHOD OF SHIPMENT OTHER UPS FED EX NEXT DAY A.M. NEXT DAY A.M. NEXT DAY P.M. NEXT DAY P.M. ND DAY ND DAY GROUND ECONOMY QTY. PART # DESCRIPTION (SPECIFY COLOR OF ITEM IF APPLICABLE) COLOR CODE PRICE/PER TOTAL COST: $ Midmark Corporation 000 Rev. /0 Page - Printed in U.S.A.

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90 Midmark Corporation 0 Vista Drive P.O. Box Versailles, Ohio Fax -- midmark.com Subject to change without notice. Refer to for latest revision. Midmark Corporation - 00 Printed in U.S.A.