Tronair 52 1 Series Operation & Service Manual
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Tronair 52 1 Series Operation & Service Manual

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OPERATION & SERVICE MANUAL
52X1 Series
5211, 5221, 5231, 5241
Hydraulic Power Units
02/2023  Rev. 05
For Spare Parts, Operations & Service Manuals or Service Needs
Scan the QR code or visit Tronair.com/aftermarket
Tronair, Inc.
Phone: (419) 866-6301 | 800-426-6301
1 Air Cargo Pkwy East
Web: www.tronair.com
Swanton, OH 43558
Email: sales@tronair.com

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  • Page 1 5211, 5221, 5231, 5241 Hydraulic Power Units 02/2023  Rev. 05 For Spare Parts, Operations & Service Manuals or Service Needs Scan the QR code or visit Tronair.com/aftermarket Tronair, Inc. Phone: (419) 866-6301 | 800-426-6301 1 Air Cargo Pkwy East Web: www.tronair.com...
  • Page 2 REVISION DATE TEXT AFFECTED 09/2016 Original release 12/2017 Modified 9.2 Electric Motor 11/2019 Added 9.14.10 Hand Pump (Option M-7) 08/2021 Added section 5.14 Infrequent HPU Use and updated 9.0 Maintenance 02/2022 Major revision...

  • Page 3: Table Of Contents

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit TABLE OF CONTENTS PAGE PRODUCT INFORMATION .............................. 1 DESCRIPTION..............................1 MODEL & SERIAL NUMBER ..........................1 MANUFACTURER .............................. 1 FUNCTION................................1 REQUIREMENTS ............................... 1 SAFETY INFORMATION ..............................1 USAGE AND SAFETY INFORMATION ......................1 EXPLANATION OF WARNING &...
  • Page 4 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.14 INFREQUENT HPU USE ..........................20 5.14.1 Infrequent HPU Use Start Up Procedure ......................20 PACKAGING AND STORAGE ............................21 PACKAGING REQUIREMENTS ........................21 HANDLING ............................... 21 PACKAGING PROTECTION ..........................21 LABELING OF PACKAGING ..........................21 STORAGE COMPATIBILITY ..........................
  • Page 5 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.15.4 Split System (Option C) and Crossover Check (Option D) Labels ..............73 9.15.5 Pyrometer (Option K) Label ..........................73 9.15.6 Hand Pump (Option M) Labels .......................... 73 9.15.7 Calibration Port (Option Q) Labels ........................73 9.15.8 Back-Pressure Valve with Sight Glass (Option T) Label ...................

  • Page 6: Product Information

    Models: 5211, 5221, 5231, 5241 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.

  • Page 7: Component Safety Features

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit COMPONENT SAFETY FEATURES   Pump/Motor coupling guard Control circuit fuses   Sheet metal panels Motor overload protection  Pressure and return system relief valves FUNCTIONAL SAFETY FEATURES   Emergency shut off switch Calibration port shut off valve ...

  • Page 8: Training

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit TRAINING TRAINING REQUIREMENTS The employer of the operator is responsible for providing a training program sufficient for the safe operation of the HPU. TRAINING PROGRAM The employer provided operator training program should cover safety procedures concerning use of the HPU in and around the intended aircraft at the intended aircraft servicing location.

  • Page 9: Physical

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.2.2 Physical Weight (Dry) ...... 1,200 lbs (544 kg) Width ......... 51 in (129.5 cm) Height ........ 48.75 in (124 cm) Depth ......... 55 in (140 cm) Power Cord ....... 50 ft (15.24 m) long Pressure Hoses ....

  • Page 10: Filters

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.2.5 Filters Pressure ........2 micron rating, non-bypass high collapse microglass type. Non-cleanable element Return ........5 micron rating, 15 psi (1.03 bar) bypass microglass type. Non-cleanable element Hand Pump (Option M) .... 2 micron rating, non-bypass microglass type. Non-cleanable element Air/Desiccant ......

  • Page 11: Location & Layout Of Controls

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit LOCATION & LAYOUT OF CONTROLS 5.3.1 Front Panel Controls Electrical Control Panel See Section 5.3.2 Hydraulic Control Panel See Section 5.3.3 Bypass Valve For loading and unloading the motor driven hydraulic pump Flowmeter Displays the flow from the motor driven hydraulic pump Pump Control Access...

  • Page 12: Electrical Control Panel

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.2 Electrical Control Panel Emergency Stop Removes power to all electrical devices, must turn to reset Stop Switch Turns off the electric motors driving the hydraulic pump and cooling fan Start Switch Turns on the electric motors driving the hydraulic pump and cooling fan Light is illuminated when the electric motors driving the hydraulic pump and cooling HPU Power "On"...

  • Page 13: Hydraulic Control Panel

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.3 Hydraulic Control Panel System Pressure Gauge Displays the system pressure on an analog fluid dampened gauge Displays the fluid temperature in the return system on an analog gauge. A warning Pyrometer (Option K) indicator preset to 170...

  • Page 14: Rear Panel Controls

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.4 Rear Panel Controls The source of pressurized fluid from the HPU that flows to the aircraft pressure * Fluid Pressure System system through the pressure hose * Fluid Return System Fluid returning to the HPU from the aircraft that flows through the return hoses Pressure Fluid Filter Filters the pressurized fluid before it flows to the aircraft pressure system Pressurized Fluid Sample Port...

  • Page 15: Hydraulic Pump Controls

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.5 Hydraulic Pump Controls The hydraulic pump flow control and pressure control are located on the front panel. Flow Control This control is used to set the maximum flow required from the HPU Pressure Control The pressure control is used to set the system pressure of the HPU during operation 02/2023 | Rev.

  • Page 16: Hand Pump Controls (Option M)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.6 Hand Pump Controls (Option M) Reference 5.9 Hand Pump Operation Located inside the front access door is the hand pump handle used for opening and Pump Handle closing the hand pump relief screw and stroking the hand pump arm Accessed through the front panel opening, this screw allows opening and closing of Hand Pump Relief Screw the hand pump hydraulic circuit using the hand pump handle...

  • Page 17: Split System Controls (Option C)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.7 Split System Controls (Option C) Reference 5.7 Split System Operation Pressure Manifold Houses the pressure valves Used to turn on and off the flow to separate aircraft systems. Always use in either Fluid Pressure Ball Valve fully open or fully closed position;...

  • Page 18: Split System Crossover Check Controls (Option D)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.8 Split System Crossover Check Controls (Option D) Reference 5.8 Split System Crossover Check Operation Pressure Gauge Displays the pressure in each aircraft system Hose Assembly Connects HPU to aircraft pressure system Ball Valve Turns on and off the fluid for taking contamination samples Crossover Check Manifold...

  • Page 19: Return Back-Pressure With Sight Gauge (Option T)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.3.9 Return Back-Pressure with Sight Gauge (Option T) This option is only available on 5231 models Reference 5.10 Return Back-Pressure with Sight Gauge Operation Return Sight Gauge Allows viewing of fluid returned through the reservoir connection line (third hose) Return Line Pressure Gauge Indicates the pressure in the main return hose (back-pressure).

  • Page 20: Start Up Procedures

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit START UP PROCEDURES 5.4.1 Procedure for First Time or Different Electrical Supply ONLY Phase Monitor (Options G  J Only): Check that the phase monitor light on the instrument panel is not illuminated. If the light is illuminated, change any two of the three input leads at the plug.

  • Page 21: Preliminary Adjustments For Operation

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit PRELIMINARY ADJUSTMENTS FOR OPERATION The following are basic to the operation of the HPU and should be thoroughly understood. The pressure and flow controls have lock nuts to prevent rotation of the control shaft during operation. These nuts should be moved away from the pump during adjustment of flow or pressure in order to eliminate binding of the control shafts.

  • Page 22: Bypass Valve Operation

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.5.4 Bypass Valve Operation The bypass valve is used for unloading the pump. The valve should be either in the fully open or fully closed position only. Do not operate the valve in a partially open position. Start Up Operation The bypass valve must be opened prior to starting the HPU in order to allow the motor to start under a no load condition and not pressurize the aircraft hydraulic system.

  • Page 23: Split System Crossover Check (Option D)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit SPLIT SYSTEM CROSSOVER CHECK (Option D) The Split System feature of this option allows control of fluid flow to the aircraft with two hydraulic systems. The systems consist of two sets of hoses and valves located at the rear of the unit on the pressure and return manifolds.

  • Page 24: Return Back-Pressure With Sight Gauge (Option T)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 5.10 RETURN BACK-PRESSURE WITH SIGHT GAUGE (Option T) This option is only available on 5231 models The Return Back-Pressure manifold consists of a back-pressure valve, a return bypass valve, pressure gauges, and a return ball valve; all mounted in an aluminum manifold block at the rear of the HPU. The Instrument Panel contains an additional pressure gauge and a sight gauge for viewing fluid returned from the reservoir connection (third hose).

  • Page 25: Clogged Filter Indicator Light (Option R)

    5.14 INFREQUENT HPU USE If the unit is not used frequently Tronair recommends operating the unit monthly. Operating regularly assures that the seals are kept lubricated, eliminates air pockets in the system, reduces moisture in the fluid and helps extend the hose life.

  • Page 26: Packaging And Storage

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit PACKAGING AND STORAGE PACKAGING REQUIREMENTS Drain hydraulic fluid until level is below the minimum fluid level indicator. Block up the unit on a pallet so the wheels are not touching the pallet or shipping container. Plug all hose ends.

  • Page 27: Trouble Shooting

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit TROUBLE SHOOTING The following is a guide to solutions of common problems associated with the HPU. See related Appendix for Hydraulic and Electrical Schematics. If the problem is not resolved using the trouble shooting information, call the manufacturer for Technical Assistance (See Section 1.3 Manufacturer).

  • Page 28: Reduced Flow

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit REDUCED FLOW Possible Cause Solution Flow control set too low Increase flow setting. Pressure adjustment is set too low Slightly increase pressure setting. When system pressure exceeds the compensator control setting, or when the Pressure compensator control is system no longer requires flow, the control de-strokes the pump while reducing pump output...

  • Page 29: Maintenance

    Hydraulic Power Unit MAINTENANCE If the unit is not used frequently Tronair recommends operating the unit monthly. Operating regularly assures that the seals are kept lubricated, eliminates air pockets in the system, reduces moisture in the fluid and helps extend the hose life.

  • Page 30: Motor Driven Hydraulic Pump

    N-2001-11-S-E N-2001-11-S-V ELBOW, 90 MALE #8 SAE X #8 JIC 9.3.1 Motor Driven Hydraulic Pump Replacement Kits List For replacement parts and seals, contact Tronair with hydraulic pump part number and serial number. 02/2023 | Rev. 05 Page | 25...

  • Page 31: Hydraulic Fluid

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit HYDRAULIC FLUID Any time an unusual color, smell or visual indicator is noticed with the hydraulic fluid, a sample analysis should be performed to determine the condition of the fluid. (See Section 5.11  Sample Valve Operation) Refer to the manufacturer of the specific fluid for your unit to obtain additional information: Model Number Fluid Type...

  • Page 32: Pressure Filter

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.5.1 Pressure Filter Replace the filter element any time the clogged filter indicator light (Option R) is triggered or when the pop-up indicator located on the filter head changes to red during operation. Replace the filter element annually to ensure proper cleanliness of the hydraulic system.

  • Page 33: Return Filter

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.5.2 Return Filter Replace the return filter element at the same time the pressure filter element is being replaced. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 34: Hand Pump (Option M) Filter

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.5.3 Hand Pump (Option M) Filter Replacement of the hand pump filter element is dictated by frequency of use and the cleanliness of the fluid, along with the environment to which the HPU is exposed. Changing the hand pump filter element at the same time as the pressure filter element will ensure a regular maintenance schedule.

  • Page 35: Desiccant Air Filter

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.5.4 Desiccant Air Filter Replace the desiccant/air filter whenever the material inside the element is pink or reddish in color (see Element Label for details). Parts List All Models - All Fluid Types Item Part Number Description...

  • Page 36: Hydraulic Hoses

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit HYDRAULIC HOSES Hoses used on the HPU must be periodically inspected for damage, blisters, leaks, or hose end problems. Any damaged or defective hose should be replaced as soon as possible. Hoses used on Aviation Phosphate Ester, Type IV units have a shorter useful life than hoses used on Mineral Base units. Surface moisture is normal with Aviation Phosphate Ester, Type IV hoses as long as the fluid does not form into drops.

  • Page 37: Instrument Panel

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit INSTRUMENT PANEL Refer to Section 9.6 Hydraulic Hoses concerning hose inspection for general maintenance on Item 3 Hose Assembly. Parts List All Models - All Fluid Types Item Part Number Description See Section 9.7.1 ELECTRIC PANEL See Section 9.7.2 HYDRAULIC PANEL...

  • Page 38: Electric Panel

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.1 Electric Panel The Electric Panel does not require regular general maintenance. Parts List All Models - All Fluid Types Item Component Part Number Description STANDARD EC-1945-01 LIGHT, DIFFUSED PILOT STANDARD EC-1951-MN5G POWER, MODULE W/LATCH OPTION EC-1945-03...

  • Page 39: Hydraulic Panel

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.2 Hydraulic Panel Annual calibration of instrumentation is recommended. See Section 12.0  Calibration of Instrumentation for details of calibration. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......

  • Page 40: Control Block/Flowmeter

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.3 Control Block/Flowmeter The Control Block components do not require regular general maintenance. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 41: System Pressure Relief Valve

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.3.a System Pressure Relief Valve The System Pressure Relief Valve does not require regular general maintenance. It is possible however, for a contaminant to hold the relief valve in a partially open condition. If service is required, the new or repaired relief valve must be reset to 3,250 psig.

  • Page 42: Check Valve

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.3.b Check Valve The Check Valve does not require regular general maintenance. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 43: Bypass Valve

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.3.c Bypass Valve The Bypass Valve does not require regular general maintenance. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 44: Flow Control

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.4 Flow Control Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item Part Number Part Number...

  • Page 45: Pressure Control

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.7.5 Pressure Control Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item Part Number Part Number...

  • Page 46: Reservoir Assembly

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit RESERVOIR ASSEMBLY Replace the desiccant air filter whenever the material inside the element is pink or reddish in color (See Element label for details). The Reservoir Assembly does not require regular general maintenance. If periodic inspections for silt are desired, be certain to thoroughly clean the dome cover and surrounding area before removing the dome cover.
  • Page 47 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit RESERVOIR ASSEMBLY (continued) Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item Part Number Part Number...

  • Page 48: Return Manifold Assembly

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit RETURN MANIFOLD ASSEMBLY The Return Manifold does not require regular general maintenance. NOTE: DO NOT attempt to adjust the Return System Pressure Relief Valve. See Section 9.9.1  Return System Pressure Relief Valve for details. 02/2023 | Rev.
  • Page 49 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit RETURN MANIFOLD ASSEMBLY (continued) Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item Part Number...

  • Page 50: Return System Pressure Relief Valve

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.9.1 Return System Pressure Relief Valve The Return System Pressure Relief Valve can be purchased as a preset assembly. If the relief valve is serviced by the end user, the valve must be set to crack at 150+/-7 psig before being re-installed on the HPU. Parts List Model Number Fluid Type...

  • Page 51: Pressure Filter Assembly (Single System)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.10 PRESSURE FILTER ASSEMBLY (Single System) Refer to Section 9.5.1 for information on changing filter element. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 52: Electrical Components

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11 ELECTRICAL COMPONENTS Regularly inspect the external power cord for nicks, cuts, abrasion, and fluid damage. Replace power cord if damage is found. See Section 10.0 Provision of Spares for recommended spare fuses. Set Item 08 to Automatic Reset position.
  • Page 53 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11 ELECTRICAL COMPONENTS (continued) Parts List All Models - All Fluid Types Item Part Number Description G-1159-105516 Screw, RD HD CRS REC, ¼ - 28 x 1 ¾ long G-1250-1050N Flatwasher, ¼ Narrow G-1202-1055 ESN, ¼...

  • Page 54: Electrical Components With 100 Ft. Input Cord Option

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11.1 Electrical Components With 100 ft. Input Cord Option Regularly inspect the external power cord for nicks, cuts, abrasion, and fluid damage. Replace power cord if damage is found. See Section 10.0 Provision of Spares for recommended spare fuses. Set Item 09 to "Auto"...
  • Page 55 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11.1 Electrical Components With 100 ft. Input Cord Option (continued) Parts List All Models - All Fluid Types Item Part Number Description G-1159-105516 Screw, RD HD CRS REC, ¼ - 28 x 1 ¾ long G-1250-1050N Flatwasher, ¼...
  • Page 56 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11.1 Electrical Components With 100 ft. Input Cord Option (continued) THE FOLLOWING PARTS ARE APPLICATION SPECIFIC Be sure to locate the correct voltage and hertz of the unit before selecting the part 60 HZ Applications ITEM Description...
  • Page 57 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.11.1 Electrical Components With 100 ft. Input Cord Option (continued) THE FOLLOWING PARTS ARE APPLICATION SPECIFIC Be sure to locate the correct voltage and hertz of the unit before selecting the part 50 HZ Applications ITEM Description...

  • Page 58: Heat Exchanger Assembly

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.12 HEAT EXCHANGER ASSEMBLY The Heat Exchanger Assembly does not require regular general maintenance. Voltage Frequency Part Number 208v 60 Hz HC-2136-01 230v 60 Hz HC-2136-01 380v 60 Hz HC-2136-01 460v 60 Hz HC-2136-01 575v 60 Hz...

  • Page 59: External Components

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.13 EXTERNAL COMPONENTS Keep HPU clean. Do not allow labels to become damaged; thusly illegible. Regularly inspect casters and floor locks to ensure safe working condition. Parts List All Models - All Fluid Types Item Part Number Description...

  • Page 60: Additional Features

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14 ADDITIONAL FEATURES 9.14.1 25 ft (7.6 m) Hoses (Option A) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection. Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 61: Split System (Option C)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.3 Split System (Option C) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 62: Crossover Check (Option D)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.4 Crossover Check (Option D) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection. Annual calibration of instrumentation is  recommended. See Section 12.0 Calibration of Instrumentation for details of gauge calibration. Parts List Model Number Fluid Type...

  • Page 63: Hour Meter (Options E And F)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.5 Hour Meter (Options E and F) The Hour Meter does not require regular general maintenance. NOTE: Wire Hour Meter per Electrical Schematic INS-2016. Reference Wiring Diagram INS-2144 Parts List All Models - All Fluid Types Part Number Application Description...

  • Page 64: Voltage/Phase Monitor (Options G  J)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit Voltage/Phase Monitor (Options G  J) 9.14.6 The Voltage/Phase Monitor does not require regular general maintenance. The panel indicator light will illuminate if a tripped condition exists. If the Voltage/Phase Monitor is causing the HPU to shut off, verify the Phase Monitor ...

  • Page 65: Pyrometer (Option K)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.7 Pyrometer (Option K) Refer to Section 11.7  Analog Temperature Gauge when calibration of the pyrometer is desired. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 66: Electric Reservoir Level (Option L)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.8 Electric Reservoir Level (Option L) The Electric Reservoir Level switch does not require regular general maintenance. Panel indicator lights will indicate low or high fluid level. NOTE: Wire per Electrical Schematic INS-2016. Reference Wiring Diagram INS-2144. Reference 9.7.1 Electrical Panel for Panel Light.

  • Page 67: Hand Pump (Option M)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.9 Hand Pump (Option M) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection for general maintenance on Items 5, 10, 12, and 14 hose assemblies. Refer to Section 9.5.3  Hand Pump (Optional) Filter 02/2023 | Rev.
  • Page 68 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.9 Hand Pump (Option M) (continued) Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item...

  • Page 69: Hand Pump (Option M-7)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.10 Hand Pump (Option M-7) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection for general maintenance on hose assemblies.  Refer to Section 9.5.3 Hand Pump Filter. 02/2023 | Rev. 05 Page | 64...
  • Page 70 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.10 Hand Pump (Option M-7) (continued) Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item...

  • Page 71: Towing Trailer (Option N)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.11 Towing Trailer (Option N) Air Pressure: 55 psi Parts List All Models - All Fluid Types Item Part Number Description Z-5775-01 Weldment, Frame Bolt, HH, 3/8 – 16 x 1 long G-1100-107010 J-3669-01 Bracket, Fixed Wheel...

  • Page 72: Calibration Port (Option Q)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.12 Calibration Port (Option Q) Refer to Section 9.6 Hydraulic Hoses concerning hose inspection. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......

  • Page 73: Electric Filter Clogging Indicator (Option R)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.13 Electric Filter Clogging Indicator (Option R) The Electric Filter Clogging Indicator does not require regular general maintenance. The panel light will illuminate when the clogging indicator senses a 50 psi differential pressure across the filter element. Installing a new filter element will eliminate the clogged condition.

  • Page 74: Electric Over-Temperature (Option S)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.14 Electric Over-Temperature (Option S) The Electric Over-Temperature switch does not require regular general maintenance. However, automatic shut down due to high fluid temperature is an indication that maintenance or training may be needed elsewhere. NOTE: Wire per Electrical Schematic INS-2016.

  • Page 75: Return Sight Gauge (Option U)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.15 Return Sight Gauge (Option U) Refer to Section 10.6 Hydraulic Hoses concerning hose inspection. Annual calibration of instrumentation is recommended. Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......

  • Page 76: Drip Pan (Option 4)

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.14.16 Drip Pan (Option 4) Parts List Model Number Fluid Type 5211 ......MIL-PRF-5606 5221 ......MIL-PRF-83282 5231 ......Aviation Phosphate Ester, Type IV and V 5241 ......MIL-PRF-87257 5211 & 5221 5231 5241 Item...

  • Page 77: Replacement Labels Parts Lists

    Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.15 REPLACEMENT LABELS PARTS LISTS 9.15.1 Base Unit Part Number Description V-1001 "MADE IN USA" V-1033 "TRONAIR" V-1050 ISO ELECTRICAL SHOCK SYMBOL V-1365 "SYSTEM PRESSURE" V-1366 "HPU BY-PASS VALVE" V-1882 CONTROL PANEL LIGHTS V-1884 "FLOWMETER"...
  • Page 78 Models: 5211, 5221, 5231, 5241 Hydraulic Power Unit 9.15.4 Split System (Option C) and Crossover Check (Option D) Labels Part Number Description V-2004 "SYSTEM 1 PRESSURE" V-2005 "SYSTEM 2 PRESSURE" V-2006 "SYSTEM 1 RETURN" V-2007 "SYSTEM 2 RETURN" 9.15.5 Pyrometer (Option K) Label Part Number Description V-1886...
  • Page 79 Website: www.tronair.com For Spare Parts, Operations & Service Manuals or Service Needs: Scan the QR code or visit Tronair.com/aftermarket 10.2 RECOMMENDED SPARE PARTS LISTS It is recommended that the following spare parts be kept on hand and available for immediate use during maintenance.
  • Page 80 CALIBRATION OF INSTRUMENTATION All gauges on the Hydraulic Power Unit can be either returned to Tronair for calibration or certified by the end user if proper calibration equipment is available. Gauges returned to Tronair for calibration will be tested with standards traceable to N.I.S.T.
  • Page 82 APPENDIX I Hydraulic Schematic (INS-2620)
  • Page 84 L E T R E V I S I O N E C N D W N C H K D A T E T H I S D R A W I N G I S T H E P R O P E R T Y O F T R O N A I R , I N C . I T I S F U R N I S H E D T O Y O U R E T U R N F O R C O N F I D E N T I A L I N F O R M A T I O N P U R P O S E S O N L Y A N D I S N O T T O B E D I S C L O S E D...
  • Page 86 APPENDIX II Electrical Schematic (INS-2016)
  • Page 90 APPENDIX III Wiring Diagram (INS-2144)
  • Page 92 L E T R E V I S I O N E C N D W N C H K D A T E T H I S D R A W I N G I S T H E P R O P E R T Y O F T R O N A I R , I N C . I T I S F U R N I S H E D T O Y O U F O R C O N F I D E N T I A L I N F O R M A T I O N P U R P O S E S O N L Y A N D I S N O T T O B E D I S C L O S E D T O A N Y O N E E L S E O R R E P R O D U C E D O R U S E D F O R M A N U F A C T U R I N G P U R P O S E S...
  • Page 94 APPENDIX IV Instrument Certification Notice...
  • Page 96 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.

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