Lubrication of HP Compressor Variable Stator Vane (VSV) Mechanism [IAE]

TASK 75-32-42-640-010-B
Lubrication of HP Compressor Variable Stator Vane (VSV) Mechanism

ZONE: 400

1. Reason for the Job
Refer to the MPD TASK: 753200-I1
LUBRICATION OF HP COMPRESSOR VARIABLE STATOR VANE (VSV) MECHANISM.
This task is applicable to all PRE and POST SBE 75-0122 A5 basic (non-SelectOne) engines and the A5 SelectOne retrofit incorporated engines.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	1	WRENCH - STANDARD
No specific	Torque wrench: range to between 370 and 290 lbf.in (4.18 and 3.28 m.daN )
IAE1P16614	1	PIN, RIGGING
IAE1R18282	1	PIN, RIGGING
IAE1R18891	1	PIN, RIGGING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V10-108)	lubricant

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
VSV Crankshaft and Unison Rings
VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SB 75-0122)
Lever Arm Lubrication Positions
Location of Compensating and Centralizing Pads

3. Job Set-up
Subtask 75-32-42-941-064-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 75-32-42-010-084-A ** ON A/C NOT FOR ALL

B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.

Subtask 75-32-42-040-069-A ** ON A/C NOT FOR ALL

C. Deactivate the thrust reverser.

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust reverser hydraulic control unit (HCU) (Ref. AMM TASK 78-30-00-040-012).

Subtask 75-32-42-010-085-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser halves (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 75-32-42-941-065-A ** ON A/C NOT FOR ALL

E. Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure
Subtask 75-32-42-420-067-A ** ON A/C NOT FOR ALL

A. Lock the Actuator and the Crank Assembly

VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL

PRE SBE 75-0122
(1) Move the actuator ram to the high speed position (ram retracted) so that the fork end is against the high speed stop.
(2) Use a WRENCH - STANDARD on the flats on the crank to move the VSVs to the high speed position.
(3) Position the ram to align the rig pin slot in the fork end with the hole in the rig pin housing.
(4) Installation of the rig pin

CAUTION: YOU MUST MAKE SURE THAT THE RIG PIN IAE1R18282 OR IAE1R18891 IS FULLY AND CORRECTLY INSTALLED IN THE VSV ACTUATOR. IF YOU DO NOT DO THIS, THE AVAILABLE POWER FROM THE ENGINE CAN BE DECREASED.

(a) Install the IAE1R18282 PIN, RIGGING or the IAE1R18891 PIN, RIGGING through the rig pin housing and the actuator ram fork end.

NOTE: Move the actuator ram fork end to align the rig pin slot in the fork end and the rig pin hole in the rig pin housing if the rig pin cannot be fully installed.

(b) Visually inspect to make sure that the rig pin engagement into the fork end slot is correct, as shown in Sheet 2 of the figure.

VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL

END OF PRE SBE 75-0122

Subtask 75-32-42-420-076-A ** ON A/C NOT FOR ALL

B. Lock the Actuator and the Crank Assembly

VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL

VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SB 75-0122) ** ON A/C NOT FOR ALL

POST SBE 75-0122
(1) Move the actuator ram to the high speed position (ram retracted) so that the fork end is against the high speed stop.
(2) Use a WRENCH - STANDARD on the flats on the crank to move the VSVs to the high speed position.

NOTE: The POST SBE 75-0122 rig pin housing is on the rear side of the ram when you look from the front of the engine.

(3) Position the ram to align the rig pin slot in the fork end with the hole in the rig pin housing.
(4) Installation of the rig pin.

CAUTION: MAKE SURE THAT YOU INSTALL THE RIG PIN IAE1P16614 FULLY AND CORRECTLY IN THE VSV ACTUATOR. IF YOU DO NOT OBEY THIS PRECAUTION, THE AVAILABLE POWER IN THE ENGINE CAN DECREASE.

(a) Install the IAE1P16614 PIN, RIGGING through the rig pin housing and the actuator ram fork end.

NOTE: Move the actuator ram fork end to align the rig pin slot in the fork end and the rig pin hole in the rig pin housing if the rig pin cannot be fully installed.

NOTE: Refer to figure Sheets 1/2 and 2/2 (VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SBE 75-0122)) VSV actuator rig pin part number PIN, RIGGING IAE1P16614 will engage to pin shoulder completely. There should not be any gap to indicate a proper rig pin installation into the actuator fork end slot.

(b) Visually inspect to make sure that the rig pin engagement into the fork end slot is correct, as shown in Sheet 2 of the figure.

VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SB 75-0122) ** ON A/C NOT FOR ALL

END OF POST SBE 75-0122

Subtask 75-32-42-020-059-A ** ON A/C NOT FOR ALL

C. Disconnect the VSV actuator

VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL

VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SB 75-0122) ** ON A/C NOT FOR ALL

(1) Remove the nut (2), the washer (1) and the bolt (4). Disconnect the rod (3) from the actuator.

Subtask 75-32-42-040-070-A ** ON A/C NOT FOR ALL

D. Spray (use a non aerosol pump type spray bottle) or squirt (use a large syringe and approximately 6 feet (1.80 m) of plastic tube) the lubricant (Material No.V10-108) on to all stages, on the surfaces that follow:

CAUTION: DO NOT BREATHE GAS FROM TEFLON BASED LUBRICANT. PUT A PROTECTION ON YOUR MOUTH. THE GAS CAN IRRITATE YOU.

CAUTION: MAKE SURE THAT YOU SHAKE THE LUBRICANT WELL BEFORE USE. THIS APPLIES TO LUBRICANT IN A NON AEROSOL PUMP TYPE SPRAY BOTTLE OR IN A SYRINGE. THIS WILL MAKE SURE THAT THE PTFE IS WELL DISTRIBUTED WITHIN THE LUBRICANT.

CAUTION: DO NOT APPLY LUBRICANT TO THE VSV ACTUATOR.

CAUTION: DO NOT LUBRICATE CRANKSHAFT BEARING. THESE VSV CRANKSHAFT BEARINGS ARE DESIGNED TO RUN DRY. LUBRICATION OF THESE WILL CAUSE SWELLING ON THE BEARING FABROID MATERIAL, RESULTING IN TIGHTNESS OF OPERATION.

(1) VSV spindles - Location A, VSV lever arm pins - Location B.

Lever Arm Lubrication Positions ** ON A/C NOT FOR ALL

(2) VSV unison ring centralizing pads - Location A, VSV bridge piece compensating pads - Location B.

Location of Compensating and Centralizing Pads ** ON A/C NOT FOR ALL

Subtask 75-32-42-980-052-A ** ON A/C NOT FOR ALL

E. Use the applicable wrench on the flats of the crankshaft and move the VSV system from the high speed to the low speed position
(1) Spray or squirt the lubricant on the areas that can now be seen as given in Para. D. above.

CAUTION: DO NOT LET THE VSVS MOVE THROUGH THE LOW OR HIGH SPEED POSITIONS WHEN THE CRANKSHAFT IS TURNED. THE ENGINE CAN BE DAMAGED INTERNALLY.

(2) Move the VSV system again and again from the high to the low speed position. Use the applicable wrench on the flats of the crankshaft. Make sure that a sufficient quantity of lubricant goes on all the joints.
(3) Check the force necessary to move the VSV mechanism.
(a) Measure the torque after the lubrication. Put the torque wrench with the applicable wrench adapter on the wrench flats of the crankshaft. Measure the torque necessary to turn the crankshaft from the low speed position to the high speed position:
1 If the torque necessary after the lubrication is more than 350 lbf.in (3.96 m.daN), reject the engine.

Subtask 75-32-42-420-077-A ** ON A/C NOT FOR ALL

F. Install the IAE1R18254 PIN RIGGING in the crank assembly.

Subtask 75-32-42-420-059-A ** ON A/C NOT FOR ALL

G. Connect the VSV actuator

VSV Crankshaft and Unison Rings ** ON A/C NOT FOR ALL

VSV Actuator (V2500-A5 and A5 SelectOne Retrofit POST SB 75-0122) ** ON A/C NOT FOR ALL

(1) Put the rod (3) in position on the actuator.
(2) Installation of the bolt (4).

CAUTION: BEFORE YOU INSTALL THE BOLT, MAKE SURE THAT ONE OF THESE THREE RIG PINS IS FULLY AND CORRECTLY INSTALLED IN THE VSV ACTUATOR.

IAE1R18282
IAE1R18891
IAE1P16614 IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE TO THE ENGINE CAN OCCUR

CAUTION: YOU MUST MAKE SURE THAT THE BOLT IS CORRECTLY INSTALLED TO THE VSV ACTUATOR FORK. IF YOU DO NOT DO THIS, EXTENSIVE DAMAGE TO THE ENGINE CAN OCCUR.

(a) Install the bolt (4), the washer (1) and the nut (2).

NOTE: Ensure VSVA and crank assembly input lever PIN adjustments.

NOTE: Make sure that the D-head bolt (4) is installed in the correct orientation to the VSV actuator fork. The D-head bolt straight face aligns with the location feature on the mating actuator fork.

(3) TORQUE the nut to between 370 and 290 lbf.in (4.18 and 3.28 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

NOTE: The correct installation of bolt (4) makes sure that the nut (2) can be torqued correctly.

Subtask 75-32-42-080-051-A ** ON A/C NOT FOR ALL

H. Remove the Rigging Pins
(1) Remove the IAE1R18254 PIN RIGGING and the IAE1R18282 PIN, RIGGING or the IAE1R18891 PIN, RIGGING or the IAE1P16614 PIN, RIGGING.

5. Close-up
Subtask 75-32-42-942-053-A ** ON A/C NOT FOR ALL

A. Remove the ground support equipment
(1) Remove the access platform

Subtask 75-32-42-410-093-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.

Subtask 75-32-42-440-063-A ** ON A/C NOT FOR ALL

C. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).

Subtask 75-32-42-410-094-A ** ON A/C NOT FOR ALL

D. Close Access
(1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:11:58 UTC