Removal of the VSV Actuating Levers [IAE]

TASK 75-32-42-000-010-B
Removal of the VSV Actuating Levers

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.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
This task is for A5 basic (non SelectOne) engines and A5 SelectOne retrofit engines, which have not SBE 72-0564 incorporated.
The removal procedure given here is for the removal of one or some of the VSV actuating levers.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

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

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 74-11-38-000-010-A	Removal of the Ignition Exciter
TASK 75-24-52-000-010-A	Removal of the High Pressure Turbine/Low Pressure Turbine (HPT/LPT) Valve Actuator
TASK 75-31-42-000-010-B	Removal of the Low Pressure Compressor (LPC) Bleed-Master Actuator
TASK 75-31-43-000-010-B	Removal of the Low Pressure Compressor (LPC) Bleed-Slave Actuator
TASK 75-32-41-000-010-A	Removal of the Variable Stator Vane (VSV) Actuator
TASK 75-32-42-000-012-B	Removal of the VSV System Crankshaft Assembly
TASK 75-32-42-000-012-B-01	Removal of the VSV System Crankshaft Assembly
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
VSV Actuating Levers
VSV Actuating Levers

3. Job Set-up
Subtask 75-32-42-941-054-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(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 75-32-42-010-066-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 75-32-42-040-057-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 75-32-42-010-055-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.

4. Procedure
Subtask 75-32-42-020-073-A ** ON A/C NOT FOR ALL

A. Removal of the Variable Stator Vane(VSV) Actuating Levers
(1) For the Variable Inlet Guide Vane (VIGV):
(a) For Pre SB 72-0486, refer to Step B.
(b) For Post SB 72-0486, refer to Step C.
(2) For stages 3, 4 and 5, refer to Step B.

Subtask 75-32-42-010-115-A ** ON A/C NOT FOR ALL

B. Removal of the Stage 3, 4 and 5 VSV actuating lever(s) including PRE SB 72-0486 VIGV actuating Lever(s)

VSV Actuating Levers ** ON A/C NOT FOR ALL

(1) Find the actuating lever(s) that is (are) to be removed.
(2) If the actuating lever is one you can get access to:
(a) Remove the nut (1) or (7).
(b) Remove the lever (2) or (8).
(c) Do not remove the adjusting spacers (3) or (9).
(3) If you cannot get access to the actuating lever because of a unison ring connector:
(a) Remove the unison ring connector:
1 Remove the four bolts (6).
2 Remove the four dowels (5).
3 Remove the connector (4).
(b) Remove the nut (7).
(c) Remove the lever (8).
(d) Do not remove the adjusting spacers (9).
(4) If you cannot get access to the actuating lever because of a VSV actuator:
(a) Remove the VSV actuator (Ref. AMM TASK 75-32-41-000-010).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).
(5) If you cannot get access to the actuating lever because of a VSV crankshaft assembly:
(a) Remove the VSV crankshaft assembly (Ref. AMM TASK 75-32-42-000-012).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).
(6) If you cannot get access to the actuating lever because of an ignition exciter:
(a) Remove the ignition exciter (Ref. AMM TASK 74-11-38-000-010).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).
(7) If you cannot get access to the actuating lever because of the Active Clearance Control (ACC) actuator:
(a) Remove the ACC actuator (Ref. AMM TASK 75-24-52-000-010).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).
(8) If you cannot get access to the actuating lever because of the Low Pressure Compressor (LPC) bleed master actuator:
(a) Remove the LPC bleed master actuator (Ref. AMM TASK 75-31-42-000-010).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).
(9) If you cannot get access to the actuating lever because of the LPC bleed slave actuator:
(a) Remove the LPC bleed slave actuator (Ref. AMM TASK 75-31-43-000-010).
(b) Remove the nut (1) or (7).
(c) Remove the lever (2) or (8).
(d) Do not remove the adjusting spacers (3) or (9).

Subtask 75-32-42-010-116-A ** ON A/C NOT FOR ALL

C. Removal of the VIGV actuating lever(s) POST SB 72-0486

VSV Actuating Levers ** ON A/C NOT FOR ALL

(1) Find the actuating lever that is to be removed.
(2) If the actuating lever is one you can get access to:
(a) Remove the bolt (1).
(b) Remove the lever (2).
(c) Do not remove the adjusting spacers (3).
(3) If you cannot get access to the actuating lever because of a unison ring connector:
(a) Remove the unison ring connector:
1 Remove the four bolts (6).
2 Remove the four dowels (5).
3 Remove the connector (4).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(4) If you cannot get access to the actuating lever because of a VSV actuator:
(a) Remove the VSV actuator (Ref. AMM TASK 75-32-41-000-010).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(5) If you cannot get access to the actuating lever because of a VSV crankshaft assembly:
(a) Remove the VSV crankshaft assembly (Ref. AMM TASK 75-32-42-000-012).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(6) If you cannot get access to the actuating lever because of an ignition exciter:
(a) Remove the ignition exciter (Ref. AMM TASK 74-11-38-000-010).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(7) If you cannot get access to the actuating lever because of the ACC actuator:
(a) Remove the ACC actuator (Ref. AMM TASK 75-24-52-000-010).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(8) If you cannot get access to the actuating lever because of the LPC bleed master actuator:
(a) Remove the LPC bleed master actuator (Ref. AMM TASK 75-31-42-000-010).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).
(9) If you cannot get access to the actuating lever because of the LPC bleed slave actuator:
(a) Remove the LPC bleed slave actuator (Ref. AMM TASK 75-31-43-000-010).
(b) Remove the bolt (1).
(c) Remove the lever (2).
(d) Do not remove the adjusting spacers (3).

[Rev.10 from 2021] 2026.04.01 03:12:01 UTC