Operation & Service Manual

Transcription

1 Operation & Service Manual Model: 5B20 Hydraulic Power Unit 07/ Rev. 06 Includes Illustrated Parts Lists 1740 Eber Rd Tronair, Inc. Phone: (419) Holland, OH USA sales@tronair.com Fax: (419)

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3 Model: 5B20 Hydraulic Power Unit TABLE OF CONTENTS PAGE 1.0 General Description Technical Specifications Hydraulic Electrical Mechanical Preparation For Use Servicing Reservoir Connecting Electrical Leads Operation General Comments Preliminary Adjustments And Operations Sample Valve Bleeding Air From System Abbreviated Operating Instructions Options Maintenance General Maintenance Filter Maintenance Lubrication Storage Troubleshooting No Flow Or Pressure Fluctuating Pressure Or Flow Unit Overheats Parts List Index... 9 APPENDIX I APPENDIX II APPENDIX III APPENDIX IV Instrument Certification Notice Lincoln Motor Manual Oilgear Type PVWG Pump Manuals MSDS Hydraulic Fluid 07/ Rev. 06

4 Model: 5B20 Hydraulic Power Unit REVISION DATE TEXT AFFECTED 01 01/05/2004 pg 3 Electrical Components - Drawing changed, and parts list expanded to include numbers for 50 & 60 Hz Applications 02 02/2004 pg 2 Replaced Electrical Schematic 03 02/2004 Major revision 04 05/2004 pg 13 Modified part numbers for 60 HZ & 50 HZ applications pg 12 Modified part number for item /2008 Modified Pump/Motor Assembly and Appendix III 06 07/2011 Modified Electrical Components Parts List 07/ Rev. 06

5 Model: 5B20 Hydraulic Power Unit Front Panel Controls 07/ Rev

6 Model: 5B20 Hydraulic Power Unit Electrical Schematic 07/ Rev

7 Model: 5B20 Hydraulic Power Unit Hydraulic Schematic 07/ Rev

8 Model: 5B20 Hydraulic Power Unit This product can not be modified without the written approval of Tronair, Inc. Any modifications done without written approval voids all warranties and releases Tronair, Inc., it suppliers, distributors, employees, or financial institutions from any liability from consequences that may occur. Only Tronair OEM replacement parts shall be used. 1.0 GENERAL DESCRIPTION The Tronair Hydraulic Power Unit (HPU) provides a source of clean, pressurized hydraulic fluid for performing required aircraft maintenance. Some important features are: Pressure compensated pump with integral pressure and flow controls 10 gallon reservoir with selector valve Bypass valve Case drain cooler Manual starter with overload protection Non bypass filter with 2 micron filter element 2.0 TECHNICAL SPECIFICATIONS 2.1 HYDRAULIC Fluid: MIL-PRF-83282D Pressure Range: 250 3,000 psi Flow Range: 0 6 gpm Filtration: 2 Micron Absolute Reservoir Capacity: 13 Gallons 2.2 ELECTRICAL Power Requirements: 3 Phase 60 Hz 50 Hz VAC , 220 VAC VAC , 415, 440 VAC VAC VAC VAC 2.3 MECHANICAL Dimensions: Weight: 45 inches Long 33 inches Wide 44 inches High 525 lbs 07/ Rev

9 Model: 5B20 Hydraulic Power Unit 3.0 PREPARATION FOR USE The HPU is shipped completely assembled and only the following steps are required to make the unit operational. 3.1 SERVICING RESERVOIR Remove the sheet metal top cover and fill the reservoir with the correct fluid until fluid level is slightly above the minimum oil level mark. Since a case drain cooler is located in the HPU reservoir, it is important that this fluid level be maintained in order to prevent excessive heat buildup. 3.2 CONNECTING ELECTRICAL LEADS Install plug onto the electrical cord and check for proper motor rotation by bumping the on-off switch. Correct motor rotation is indicated by an arrow on pump motor adapter. If rotation is not correct, change any two of the three input leads at the plug or inside the electrical component box. NOTE: Balanced three phase voltage must be available to prevent overheating and damage to the motor. 4.0 OPERATION Voltage unbalanced between phases occurs when the voltages differ from one another. Some reasons for imbalance are: 1. Unequal loading of each phase. 2. Poor connections in the supply. 3. Single phase condition caused by blown fuses or bad connections. If these conditions occur in the incoming power system, a protective device, such as a voltage monitor, should be installed on the machine to prevent motor damage. Due to the complexity, differences, and ongoing changes in aircraft hydraulic systems, no attempt has been made to relate to any specific aircraft operation. It is suggested that this manual and the HPU be studied thoroughly in order to obtain optimum benefit of the various features. By combining an understanding of the HPU and the aircraft hydraulic system, many services not mentioned in this manual may be performed. Refer to the hydraulic schematic, front panel controls, and internal components pages for clarification while reading this manual. 4.1 GENERAL COMMENTS Most questions or problems concerning hydraulic power units are usually caused by improper training or understanding of hydraulics. The following comments are given to aid in obtaining maximum benefits from the hydraulic power unit. A. Training Be sure all personnel that will use the machine read the operating manual and receive training. We encourage customers to call Tronair to discuss any operating or testing requirements. B. Use of the HPU on Citation III The model 7012 HPU has some unique features required for use on the Citation III aircraft. These include: 1. The aircraft return fluid passes through a panel mounted sight gauge prior to the HPU reservoir. The sight gauge allows a visual indication of fluid condition and entrapped air. 2. Since it is not possible to use the aircraft reservoir, there is no reservoir selector valve. 4.0 Operation continued on following page. 07/ Rev

10 Model: 5B20 Hydraulic Power Unit 4.0 OPERATION (continued) 4.2 PRELIMINARY ADJUSTMENTS AND OPERATIONS The following are basic to the operation of the HPU and should be thoroughly understood. A. Flow Control Adjustment 1. Open bypass valve. 2. Start HPU. 3. Adjust flow control on pump for maximum desired flow and read flow (Gallons per minute) directly form flowmeter scale. Be sure the control shaft lock nut is loose during adjustment. Tighten after adjustment to maintain setting. B. Pressure Control Adjustment 1. Open bypass valve. 2. Start HPU. 3. Close bypass valve. 4 Adjust pressure control for desired pressure. Be sure the control shaft lock nut is loose during adjustment. Tighten after adjustment to maintain setting. C. Bypass Valve Operation The bypass valve is used for unloading the pump flow in conjunction with the flowmeter. CAUTION! Excessive heat, which could damage machine components, will be generated if the bypass valve is partially opened or is used for regulating flow or pressure. Use the flow and pressure controls for regulation. Use the bypass valve for unloading the system. 1. Start Up Operation: The bypass valve should be opened prior to starting the HPU in order to allow the motor to start under a no load condition. 2. Shut Down Operation: Prior to shutdown, the bypass valve may be opened to bleed off any residual system pressure. NOTE: Once the flow and pressure controls have been adjusted, it is not necessary to change these settings after each operation unless desired. 4.3 SAMPLE VALVE A sample valve is provided on the rear of the unit to obtain a fluid sample for analysis or inspection. In order to obtain a representative fluid sample, it is suggested that American National Standard number B be followed. 4.4 BLEEDING AIR FROM SYSTEM Rapid fluctuations of the pressure gauge and flowmeter are indications of cavitation or entrapped air in the hydraulic lines and/or components. Air may enter the system when: Operating the unit with insufficient oil in the reservoir. Changing a component on the aircraft. Changing the hose connections and/or couplings. To Easily Purge the Unit of Air: 1. Fill reservoir to recommended level. 2. Open bypass valve. 3. Start unit and adjust flow control to maximum position. 4. Run unit for 5 minutes and shut off. 5. If additional bleeding is required, proceed with the following steps. a) Connect the pressure and return hoses together. (Kits containing the necessary fitting(s) are available from Tronair) b) If the unit is equipped with pressure and return ball valves, open the ball valves prior to starting the unit. 07/ Rev

11 Model: 5B20 Hydraulic Power Unit 4.4 BLEEDING AIR FROM SYSTEM (continued) Warning! Failure to open the return ball valves will cause hose or valve rupture. Property damage and personal injury can result. c) Open the bypass valve on the instrument panel d) Start unit and adjust flow control to maximum position. e) Close the bypass valve and allow the unit to run for five (5) minutes. Under some conditions where a large amount of air has entered the system, the pump may not be able to draw an initial prime and will not pump. If this occurs, it may be necessary to fill the pump inlet line with fluid. 4.5 ABBREVIATED OPERATING INSTRUCTIONS These instructions may be used for fast reference after a thorough understanding of the HPU operation has been achieved. A. Prior to Starting 1. Open the bypass valve. B. Initial Adjustments 1. Set flow control. (See Section 4.2.A) 2. Set pressure control. (See Section 4.2.B) C. Operation 1. Start HPU. 2. Close bypass valve. 3. Perform aircraft tests. D. Shut Off 1. Open bypass valve. 2. Push stop button. 4.6 OPTIONS The following options are available on some models of hydraulic power units. Refer to the appropriate option description for operation information. A. Pyrometer (Option K) The pyrometer indicates fluid temperature in the return system. It is normal for this temperature to increase when the aircraft is not demanding any flow and the HPU is holding pressure. CAUTION! If this temperature rises to 150o F: 1. Operate from HPU reservoir or, 2. Open the bypass valve or, 3. Cycle the landing gear a few times or, 4. Shut off the HPU. B. Dual System Operation (Option C) The dual system option allows control of fluid flow to aircraft with two hydraulic systems. The systems consist of two sets of hoses and valves located in the pressure and return systems. The valves are mounted on the rear of the hydraulic power unit and are of the 90 degree ball type. The valves are open when the operating handle is in line with the valve. Although both systems may be operated simultaneously, usually only one system is required at any one time. If both valve sets are open simultaneously, the pump output will be divided between the two systems. Also, cross flow between the reservoirs may occur if a reservoir level or pressure differential exists. Select valve positions prior to starting machine. 4.6 Optionscontinued on following page. 07/ Rev

12 Model: 5B20 Hydraulic Power Unit 4.6 OPTIONS (continued) To Operate the Dual System: 1. Before starting machine, open pressure and return valves of the same system. 5.0 MAINTENANCE WARNING! Ensure pressure and return hoses of the same system are paired and used together. 2. After completing tests on one system, shut the machine Off before selecting the second system. WARNING! Never open or close dual system valves without shutting off the hydraulic power unit. Damage to the aircraft system or reservoir may result if either return line valve is closed while the machine is running. 3. If equipped with the Dual System Crossover Check Option, separate pressure gauges are located after each system pressure shut off valve. This allows bleed down pressures to be read when the pressure valves are closed. Follow aircraft manufacturer's instructions. C. Hourmeter (Options E or F) The hourmeter records operating hours of the HPU. The main use of the hourmeter is to schedule filter changes. D. Hand Service Pump (Option M) This pump is used primarily for filling aircraft reservoirs after testing, bleeding brakes, etc. 5.1 GENERAL MAINTENANCE The Hydraulic Power Unit should be maintained in a safe and clean condition at all times. Locate and correct the source of any and all leaks. Inspect hoses and electrical cord periodically for damage and wear. Replace as required. 5.2 FILTER MAINTENANCE The main pressure filter has a replaceable element that is not cleanable. It is recommended that this filter be changed after every 25 hours of operation, annually, or whatever a reduced maximum flow is noticed. Refer to the parts list for the correct filter element number. 5.3 LUBRICATION The swivel casters are equipped with grease fittings which should be lubricated annually. 5.4 STORAGE In the event that the HPU will not be used for 12 months or longer, the reservoir may be drained. The unit should then be appropriately covered in order to maintain cleanliness. 07/ Rev

13 Model: 5B20 Hydraulic Power Unit 6.0 TROUBLESHOOTING 6.1 NO FLOW OR PRESSURE Flow control set too low:... Increase flow setting. Motor running in wrong direction:... See Section 3.0, "Preparation for Use". Insufficient oil in reservoir:... See Section 3.0, "Preparation for Use". Air in hydraulic lines:... See Section 4.4, "Bleeding Air From System". Faulty pump:... Repair or replace pump. 6.2 FLUCTUATING PRESSURE OR FLOW Air in hydraulic lines:... See Section 4.4, "Bleeding Air From System". 6.3 UNIT OVERHEATS Low fluid level in reservoir:... See Section 3.0, "Preparation for Use". Running unit for long time periods Cycle landing gear or other components without operating aircraft:... periodically or allow unit to cool components. Bypass valve partially open:... See Section 4.2.C, "Bypass Valve Operation". NOTE: Running time under deadhead condition can be increased substantially by selecting the "Hydraulic Power Unit" position; reservoir selector valve. When a pressure compensated pump is required to hold pressure without any flow delivery (dead headed condition), it is normal for the pump case drain flow and temperature to increase. By selecting the "Hydraulic Power Unit" position of the selector valve, all of the oil in the reservoir is utilized for cooling. 7.0 PARTS LIST INDEX When ordering Replacement Parts/Kits, please specify Model & Serial Number of your product. Reference the following for ordering information of Replacement Parts and Kits. Contents Page Bypass Valve Check Valve Control Module Electrical Components External Components HC-2161 Hand Pump Assembly Internal Hydraulic Hoses Hand Pump (Option M) Pressure Filter Pressure Relief Valve Pump/Motor Assembly Reservoir Assembly / Rev

14 Model: 5B20 Hydraulic Power Unit External Components ITEM PART NUMBER DESCRIPTION QTY 1... U Caster, Rigid H Latch HC Pyrometer (Option K) HC Gauge, Pressure EC Switch, On/Off EC Lamp, Replacement EC Hourmeter (Option E or F) H Handle HC Flowmeter HC-2150-A1 (Calibrated)... Flowmeter U Caster, Swivel H Lock, Floor TF * Hose, Return TF * Hose, Pressure Z Hanger, Hose HC Indicator, Sight Flow... 1 LOCATION Internal Hydraulic Hoses PART NUMBER Case Drain Cooler to Bypass Cooler... TF *32.0 Control Block to Bypass Cooler... TF *28.0 Pump to Case Drain Cooler... TF *22.5 Pump to Flow Meter... TF *30.0 Control Block to Pressure Gauge... TF *16.0 Control Block to Pressure Filter... TF *22.0 Cooler to Flow Indicator... TF * / Rev

15 Model: 5B20 Hydraulic Power Unit Electrical Components **When ordering replacement parts/kits, please specify model, serial number and color of your unit.** 1. Set Item 01 to "Manual" and set "A2" to its corresponding full load amps. ITEM PART NUMBER DESCRIPTION QTY 1... EC Relay, IEC Overload EC Enclosure, Electrical See Table... Contactor, IEC Motor See Table... Transformer EC Holder, Fuse EC Fuse... 1 ITEM 60 HZ Applications Description Qty. 3 EC-1838 EC-1838 EC-1838 EC-1836 EC-1837 Contactor, IEC Motor 1 4 EC EC-1074 EC EC-1074 EC Transformer 1 ITEM 50 HZ Applications Description Qty. 3 EC-1838 EC-1838 EC-1836 EC-1836 EC-1836 Contactor, IEC Motor 1 4 EC EC-1074 EC EC EC-1074 Transformer 1 07/ Rev

16 Model: 5B20 Hydraulic Power Unit Reservoir Assembly ITEM PART NUMBER DESCRIPTION QTY 1... HC Reservoir HC Filler, Breather HC Gauge, Sight H Washer, Nylon H Gasket, Cover HC Diffuser HC Strainer / Rev

17 Model: 5B20 Hydraulic Power Unit Pump/Motor Assembly ITEM PART NUMBER DESCRIPTION QTY 1... HC Mount, Pump/Motor H Spider H Coupling, Body/Motor K Kit, Hydraulic Pump with Hardware H Coupling, Body/Pump... 1 PUMP REPLACEMENT PARTS Not Shown... TBD... Shaft Seal... 1 Not Shown... TBD... Gasket & O-rings Kit... 1 Note: All bolts are Grade 5. See the Pump Manufacturer's Service Booklet for servicing and additional kits. Kit includes HC-1543 Shaft Seal. 07/ Rev

18 Model: 5B20 Hydraulic Power Unit Pressure Filter ITEM PART NUMBER DESCRIPTION QTY 1... HC Assembly, Filter... 1 FILTER REPLACEMENT PARTS 2... K Filter Element Kit HC O-ring, Bowl... 1 Item 3 is included with Item 2. 07/ Rev

19 Model: 5B20 Hydraulic Power Unit Control Module ITEM PART NUMBER DESCRIPTION QTY 1... J Body, Valve HC Valve, Check HC Valve, Pressure Relief HC Valve, Bypass... 1 Bypass Valve ITEM PART NUMBER DESCRIPTION QTY 1... HC Assembly, Bypass Valve HC Handle, Valve HC O-ring HC Ring, Backup HC O-ring HC O-ring / Rev

20 Model: 5B20 Hydraulic Power Unit Pressure Relief Valve ITEM PART NUMBER DESCRIPTION QTY 1... HC Valve, Pressure Relief HC O-ring HC O-ring HC Ring, Backup... 1 Check Valve ITEM PART NUMBER DESCRIPTION QTY 1... HC Valve, Check HC O-ring HC O-ring HC Ring, Backup / Rev

21 Model: 5B20 Hydraulic Power Unit Option M Reservoir Fill Hand Pump ITEM PART NUMBER DESCRIPTION QTY 1... TF * Hose HC Assembly, Filter K Kit, Replacement Filter Element TF * Hose HC Assembly, 500 psi, Hand Pump TF * Hose Z Weldment, Filter Bracket H Handle, Pump... 1 See Pages 18 & 19 for additional Information. 07/ Rev

22 Model: 5B20 Hydraulic Power Unit HC-2161 (Mineral Base Fluids) Hand Pump 07/ Rev

23 Model: 5B20 Hydraulic Power Unit HC-2161 (Mineral Base Fluids) Hand Pump ITEM FLUID PART NUMBER DESCRIPTION QTY 3... N/A Clevis Pin Assembly N/A Tie Rods N/A Retaining Flange N/A Tube N/A Piston N/A Valve Block N/A... Reference Only... Available only in Assembly N/A... CXD Body N/A T... Retainer Mineral Base... 5M2-B T... Screw Release N/A Plug N/A Pivot... 1 Mineral Base SRK-PSB-120 Kit, O-ring; consists of: 8... Mineral Base O-ring, BUNA Mineral Base O-ring, BUNA Mineral Base O-ring, BUNA Mineral Base O-ring, BUNA... 1 SRK-PHR-120 Kit, Check Ball/Spring; consists of: N/A Intake Check Ball N/A Outlet Check Spring N/A Outlet Check Ball N/A Intake Check Spring... 1 SRK-PL-000T Kit, Bracket; consists of: N/A Linkage Pin Assembly N/A Strap N/A Bracket Handle T Kit, Handle; consists of: Not Shown... N/A Handle Grip... 1 Not Shown... N/A Handle / Rev

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27 Instrument Certification Notice The gauge Certificates of Calibration supplied for the gauge(s) on this unit contain the calibration data for the actual instrument calibrated, along with the calibration date of the STANDARD used to perform the calibration check. The due date for re-calibration of the instrument should be based upon the date the instrument was placed in service in your facility. Re-calibration should be done on a periodic basis as dictated by the end user's quality system or other overriding requirements. Note that Tronair, Inc. does not supply certificates of calibration on flow meters or pyrometers unless requested at the time of placed order. These instruments are considered reference indicators only and are not critical to the test(s) being performed on the aircraft Eber Rd Tronair, Inc. Phone: (419) Holland, OH USA sales@tronair.com Fax: (419)

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