TASK 72-00-60-820-001 External Gearbox Components - Convert The Woodward FMU SBE 73-0172 And SBE 73-0223 - Rework-001

DMC:V2500-A5-72-00-6050-00A-933A-C|Issue No:002.00|Issue Date:2019-11-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

V2500-A5

Common Information

TASK 72-00-60-820-001 External Gearbox Components - Convert The Woodward FMU SBE 73-0172 And SBE 73-0223 - Rework-001

Effectivity

FIG/ITEM

PART NO.

01-100

8061-636 or 8061-639

01-100

8061-637 or 8061-640

General

This TASK gives the re-setting procedure to convert the Woodward FMU part number 8061-636 or 8061-639 to part number 8061-637 or 8061-640 and part number 8061-637 or 8061-640 to part number 8061-636 or 8061-639.

The practices and processes referred to in the procedure by TASK/SUBTASK number are in SPM.

Refer to the Service Bulletin SBE 73-0172 and/or SBE 73-0223 for specific application requirements.

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

Special torque data is identified with the symbol * after the torque value.

For standard torque data and procedures, refer to SPM TASK 70-41-00-400-501, SPM TASK 70-41-01-400-501 and SPM TASK 70-41-02-410-501.

For lockwire data refer to SPM TASK 70-42-05-400-501.

After assembly apply CoMat 07-038 AIR DRYING ENAMEL to any damaged surface protection, joint flanges and attach parts. Use the correct color of air drying enamel. Refer to SPM TASK 70-38-21-380-501.

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

Refer to Woodward Service Bulletin 83724-73-0004.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard workshop toolsLOCAL

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-127 LOCKWIRELOCALCoMat 02-127
CoMat 02-138 LOCKWIRELOCALCoMat 02-138
CoMat 07-038 AIR DRYING ENAMELk3504CoMat 07-038

Spares

NONE

Safety Requirements

CAUTION

REFER TO SBE 72-0285 IF THIS SWITCHING TASK IS DONE AS PART OF AN ENGINE RE-RATING EXERCISE. SBE 72-0285 : ENGINE CONVERSION - PROVIDE INSTRUCTIONS TO CHANGE THE V2500-A5 ENGINE RATING BY MODIFYING THE DATA ENTRY PLUG.

Procedure

    1. SUBTASK 72-00-60-820-001 Convert the Woodward FMU Part Number 8061-636 or 8061-639 to Part Number 8061-637 or 8061-640

    1. WARNING

      YOU MUST MAKE SURE THAT THE FMU FUEL SYSTEM IS DE-PRESSURIZED BEFORE YOU DO THIS CONVERSION PROCEDURE. THIS IS TO AVOID POTENTIAL HARZARDS FROM FIRE AND INJURY TO PERSONS FROM PRESSURIZED FUEL.

      WARNING

      YOU MUST BE CAREFUL WHEN YOU REMOVE LOCKWIRE. IF YOU PULL LOCKWIRE WITH FORCE FROM A COMPONENT IT CAN CAUSE YOU INJURY.

      CAUTION

      LOCKWIRE FRAGMENTS WILL BE LIBERATED DURING THE REWORK PROCEDURE. ALL SUCH FRAGMENTS MUST BE RECOVERED.

      CAUTION

      YOU MUST NOT APPLY TORQUE MORE THAN THE RECOMMENDED TORQUE VALUES. OVER TORQUING CAN RESULT IN DAMAGE TO THE FUEL METERING UNIT (FMU) WHICH CAN NECESSITATE REPLACEMENT OF THE FMU.

      CAUTION

      YOU MUST NOT APPLY TORQUE MORE THAN 50 LBFIN. (5.65 NM) DURING THIS PROCEDURE.

      Refer to Figure, Figure, Figure, Figure and Figure.

      2. Re-setting procedure.

      1. Disconnect the two lower electrical connectors from the FMU to provide sufficient working space during this procedure. Refer to TASK 72-00-60-050-002-B00 (REMOVAL-006).

      2. Before you change the setting make sure that the FMU part number and stop setting letter correctly match each other. Report mismatch to your local quality representative.

        FMU PART NUMBER

        POSITION SETTING LETTER

        FMU 8061-636 or 8061-639

        O

        FMU 8061-637 or 8061-640

        X

      3. Remove the lockwire from the plug assembly.

      4. Remove the safety pin from the plug assembly.

      5. Using a hex tool to turn the detent inwards in a clockwise direction until there is sufficient clearance between the top of the detent and the cap to permit the cap to be rotated.

      6. Using a hex tool in the larger internal hex on the shaft, turn the shaft assembly in an anti-clockwise (counter clockwise) direction so the stop setting letter X shows in the switch window. Remove the hex tool.

      7. Put a hex tool in the alternative hole in the cap and turn the detent outwards in an anti-clockwise (counter clockwise) direction. Torque tighten outwards to 19 * lbfin. to 22 * lbfin. (2.1 Nm to 2.5 Nm).

      8. Make sure that the detent prevents the cap from rotating.

      9. Install the safety pin through the body of the switchable unit to safety it. Make sure the pin is secure in the hexagon. Make sure the pin is pushed in until it springs/clicks fully in position.

      3. Identify the FMU with the correct nameplate.

      1. Remove the lockwire from securing screw.

      2. Remove the two nameplate securing screws and remove the nameplate.

      3. NOTE

        It is normal for the nameplate to have some markings and material deformation caused by the screws. The nameplate has identification markings on both sides.

        Examine the nameplate for damage. If damage is excessive replace nameplate.

      4. Turn the nameplate over to show P/N 8061-637 or 8061-640 and attach the nameplate to the FMU with the two screws.

        5. Check the run-on torque.

        1. If the run-on torque is less than 10 oz. (0.07 Nm) then replace the two screws.

        2. If the run-on torque continues to be less than 10 oz. (0.07 Nm) then replace the inserts.

        3. Torque tighten the screws to between 5.5 * lbfin. and 6.0 * lbfin. (0.62 Nm to 0.68 Nm).

      6. Make sure the stop setting letter X is visible in the switch window.

      7. Examine the nameplate make sure you can see the P/N 8061-637 or 8061-640.

      8. Make sure the safety pin is secure and safeties the switchable assembly.

      9. Safety the pin eyelet with CoMat 02-127 LOCKWIRE and bend the wire back on itself.

      10. Twist the two wires, use the standard double twist method (SAE AS567). Route the twisted wire under the pin and around the plug assembly. Make sure that the wire is as taut as possible.

      11. Use one strand of lockwire to loop through the pin eyelet. Twist the wire pair again to make sure it is firmly attached to the eyelet of the pin.

      12. NOTE

        The inclusion of the seal (SAE AS567) is optional. The seal is available from the Woodward Governor Company. Refer to Service Bulletin 83724-73-0004.

        Attach one seal (SAE AS567) and apply end twists. Use WT-140418 assembly tool to crimp the seal. Tie down the pigtail of the lockwire to the lockwire underneath.

        NOTE

        Install of seal is optional.

      13. Safety the screw with CoMat 02-138 LOCKWIRE.

      14. Twist and loop the safety wire underneath the LP pump inlet boss. Route the twisted lockwire back over the top of the LP pump inlet boss.

      15. Stop the twist of wires at the intersection where the two wires meet and loop the two wire strands around the twisted safety wire.

      16. Twist the lockwire, after the loop, so that the two sets of lockwire are attached.

      17. Install one seal with WT-140418 assembly tool to crimp the seal.

      18. NOTE

        This step is optional.

        Finish wire twists and tie down the lockwire to the screw.

      4. Do the final checks.

      1. Examine the nameplate, make sure you can see the P/N 8061-637 or 8061-640.

      2. Make sure the stop setting letter X is visible in the switch window.

      3. Make sure the safety pin is fully secure and safeties the switchable assembly.

      4. Make sure the FMU serial number on the nameplate and modification plate are the same as each other.

      5. Make sure the two seals are correctly installed.

        6. Make sure the two seals have one of the two marks. These are the only accepable marks:

        1. NOTE

          The W mark will only be used by the original equipment manufacturer.

          # or W.

    2. SUBTASK 72-00-60-820-002 Convert the Woodward FMU Part Number 8061-637 or 8061-640 to Part Number 8061-636 or 8061-639

    1. WARNING

      YOU MUST MAKE SURE THAT THE FMU FUEL SYSTEM IS DE-PRESSURIZED BEFORE YOU DO THIS CONVERSION PROCEDURE. THIS IS TO AVOID POTENTIAL HARZARDS FROM FIRE AND INJURY TO PERSONS FROM PRESSURIZED FUEL.

      WARNING

      YOU MUST BE CAREFUL WHEN YOU REMOVE LOCKWIRE. IF YOU PULL LOCKWIRE WITH FORCE FROM A COMPONENT IT CAN CAUSE YOU INJURY.

      CAUTION

      LOCKWIRE FRAGMENTS WILL BE LIBERATED DURING THE REWORK PROCEDURE. ALL SUCH FRAGMENTS MUST BE RECOVERED.

      CAUTION

      YOU MUST NOT APPLY TORQUE MORE THAN THE RECOMMENDED TORQUE VALUES. OVER TORQUING CAN RESULT IN DAMAGE TO THE FUEL METERING UNIT (FMU) WHICH CAN NECESSITATE REPLACEMENT OF THE FMU.

      CAUTION

      DO NOT APPLY TORQUE MORE THAN 50 LBFIN. (5.65 NM) DURING THIS PROCEDURE.

      Refer to Figure, Figure, Figure, Figure and Figure.

      2. Re-setting procedure.

      1. Disconnect the two lower electrical connectors from the FMU to provide sufficient working space during this procedure. Refer to TASK 72-00-60-050-002-B00 (REMOVAL-006).

      2. Before you change the setting make sure that the FMU part number and stop setting letter correctly match each other. Report mismatch to your local quality representative.

        FMU PART NUMBER

        POSITION SETTING LETTER

        FMU 8061-636 or 8061-639

        O

        FMU 8061-637 or 8061-640

        X

      3. Remove the lockwire from the plug assembly.

      4. Remove the safety pin from the plug assembly.

      5. Using a hex tool to turn the detent inwards in a clockwise direction until there is sufficient clearance between the top of the detent and the cap to permit the cap to be rotated.

      6. Using a hex tool in the larger internal hex on the shaft, turn the shaft assembly in an clockwise direction so the stop setting letter O shows in the switch window. Remove the hex tool.

      7. Put a hex tool in the alternative hole in the cap and turn the detent outwards in an anti-clockwise (counter clockwise) direction. Torque tighten outwards to 19 * lbfin. to 22 * lbfin. (2.1 Nm to 2.5 Nm).

      8. Make sure that the detent prevents the cap from rotating.

      9. Install the safety pin through the body of the switchable unit to safety it. Make sure the pin is secure in the hexagon. Make sure the pin is pushed in until it springs/clicks fully in position.

      3. Identify the FMU with the correct nameplate.

      1. Remove the lock wire from securing screw.

      2. Remove the two nameplate securing screws and remove the nameplate.

      3. NOTE

        It is normal for the nameplate to have some markings and material deformation caused by the screws. The nameplate has identification markings on both sides.

        Examine the nameplate for damage. If damage is excessive replace nameplate.

      4. Turn the nameplate over to show P/N 8061-636 or 8061-639 and attach the nameplate to the FMU with the two screws.

        5. Check the run-on torque.

        1. If the run-on torque is less than 10 oz. (0.07 Nm) then replace the two screws.

        2. If the run-on torque continues to be less than 10 oz. (0.07 Nm) then replace the inserts.

        3. Torque tighten the screws to between 5.5 * lbfin. and 6.0 * lbfin. (0.62 Nm to 0.68 Nm).

      6. Make sure the stop setting letter O is visible in the switch window.

      7. Examine the nameplate make sure you can see the P/N 8061-636 or 8061-639.

      8. Make sure the safety pin is secure and safeties the switchable assembly.

      9. Safety the pin eyelet with CoMat 02-127 LOCKWIRE and bend the wire back on itself.

      10. Twist the two wires, use the standard double twist method (SAE AS567). Route the twisted wire under the pin and around the plug assembly. Make sure that the wire is as taut as possible.

      11. Use one strand of lockwire to loop through the pin eyelet. Twist the wire pair again to make sure it is firmly attached to the eyelet of the pin.

      12. NOTE

        The inclusion of the seal (SAE AS567) is optional. The seal is available from the Woodward Governor Company. Refer to Service Bulletin 83724-73-0004.

        Attach one seal (SAE AS567) and apply end twists. Use WT-140418 assembly tool to crimp the seal. Tie down the pigtail of the lockwire to the lockwire underneath.

        NOTE

        Install of seal is optional.

      13. Safety the screw with CoMat 02-138 LOCKWIRE.

      14. Twist and loop the safety wire underneath the LP pump inlet boss. Route the twisted lockwire back over the top of the LP pump inlet boss.

      15. Stop the twist of wires at the intersection where the two wires meet and loop the two wire strands around the twisted safety wire.

      16. Twist the lockwire, after the loop, so that the two sets of lockwire are attached.

      17. Install one seal with WT-140418 assembly tool to crimp the seal.

      18. NOTE

        This step is optional.

        Finish wire twists and tie down the lockwire to the screw.

      4. Do the final checks.

      1. Examine the nameplate, make sure you can see the P/N 8061-636 or 8061-639.

      2. Make sure the stop setting letter O is visible in the switch window.

      3. Make sure the safety pin is fully secure and safeties the switchable assembly.

      4. Make sure the FMU serial number on the nameplate and modification plate are the same as each other.

      5. Make sure the two seals are correctly installed.

        6. Make sure the two seals have one of the two marks. These are the only accepable marks:

        1. NOTE

          The W mark will only be used by the original equipment manufacturer.

          # or W.

    3. SUBTASK 72-00-60-420-209 Reconnect Electrical Harness

    1. Connect the two lower electrical connectors to the FMU. Refer to TASK 72-00-60-450-002-B00 (INSTALLATION-006).

    4. Figure: Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 1

    Legend
    Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 1

    Close

    Figure: Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 2

    Legend
    Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 2

    Close

    Figure: Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 3

    Legend
    Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 3

    Close

    Figure: Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 4

    Legend
    Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 4

    Close

    Figure: Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 5

    Legend
    Woodward FMU - Adjust the Max. Fuel Flow Stop

    Sheet 5

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to add seal AS567 information. (19VC255)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:3HPT0
Supply Number:CoMat 02-127
Type:sp01
Supply Short Name:CoMat 02-127 LOCKWIRE
Supply Name:CoMat 02-127 LOCKWIRE
Specification Groups:
Doc NumberType
MS 9226-03 (0.025 IN)
Suppliers:
ManufacturerRemarks
3HPT0
K6835
LOCAL
Manufacturer Code:LOCAL
Supply Number:CoMat 02-138
Type:sp01
Supply Short Name:CoMat 02-138 LOCKWIRE
Supply Name:CoMat 02-138 LOCKWIRE
Specification Groups:
Doc NumberType
SAE ITC AS 44725-1, AMS5689 (0.5 mm)
orSAE ITC AS 44725-1, DTD 189A (0,5 mm)
Suppliers:
ManufacturerRemarks
LOCAL
81343
V508V
Manufacturer Code:00BB6
Supply Number:CoMat 07-038
Type:sp01
Supply Short Name:CoMat 07-038 AIR DRYING ENAMEL
Supply Name:CoMat 07-038 AIR DRYING ENAMEL
Specification Groups:
Doc NumberType
OMAT:7/22B (RR REF)IP9138 R1
JCR-029 (JAEC REF)
Suppliers:
ManufacturerRemarks
00BB6
K3504
Link not Found