Removal of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator [PW11]

TASK 75-32-01-000-801-A
Removal of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: DO NOT GET FUEL IN YOUR MOUTH, EYES OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM THE FUEL. KEEP THE FUEL AWAY FROM SPARKS, FLAME AND HEAT. FUEL IS POISONOUS AND FLAMMABLE, WHICH CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.

CAUTION: DO NOT LET FUEL OR OIL FALL ON THE ENGINE. YOU MUST IMMEDIATELY REMOVE UNWANTED FUEL OR OIL WITH A CLOTH. THE FUEL OR OIL CAN CAUSE DAMAGE TO SOME ENGINE PARTS.

FIN: 4092KS ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	CONTAINER 20L (5 USGAL)
No specific	1	COVER - PROTECTION
No specific	1	PLIERS - JAWED, SOFT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.P05-005)	lint-free cotton cloth

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-832-A	Procedure to Prevent Engine Motoring and to Stop the Electrical Supply to the EEC
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 72-21-08-000-801-A	Removal of the Fan Exit Liner Segments
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator

3. Job Set-up
Subtask 75-32-01-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring and to stop the electrical supply to the Electronic Engine Control (EEC)
(Ref. AMM TASK 71-00-00-860-832)

Subtask 75-32-01-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M(3 FT) in position.

Subtask 75-32-01-040-050-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 75-32-01-010-051-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the left thrust-reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL

4. Procedure
Subtask 75-32-01-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Low Pressure Compressor (LPC) (2.5) Bleed Valve Actuator

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Make sure that you wipe clean all parts and tools to remove contamination and to prevent damage to the engine.
(2) Find the actuator (1) attached to the Compressor Intermediate Case (CIC) bulkhead at the 10 o'clock position.
(a) Remove the fan exit liner segment forward of the actuator (1) (Ref. AMM TASK 72-21-08-000-801).
(3) Remove the actuator (1) as follows:
(a) Remove the insulation blanket (2) from the actuator (1).
(b) Disconnect the wiring harness (W04) connector (P28) from the actuator (1) with the PLIERS - JAWED, SOFT.
(c) Put the CONTAINER 20L (5 USGAL) under the actuator (1).
(d) Put a lint-free cotton cloth (Material No.P05-005) under the actuator (1).
(e) Disconnection of the drain tube

CAUTION: USE A SECOND WRENCH TO HOLD THE MATING PARTS WHEN YOU LOOSEN OR TIGHTEN THE TUBE OR HOSE NUTS. IF YOU DO NOT OBEY THIS CAUTION, YOU CAN TWIST OR CAUSE DAMAGE TO THE TUBES OR HOSES.

1 Disconnect the drain tube (DR11) from the bottom of the actuator (1).
2 Disconnect the servo pressure fuel tube (CP04) from the actuator (1).
3 Disconnect the servo return fuel tube (CR04) from the actuator (1).
(f) Remove the bolt (12) that attaches the connecting link to the actuator (1).
(g) Remove the two bolts (14) and two bolts (15) and remove the bracket (13) from the actuator (1) and bracket.
(h) Loosen the four captive bolts that attach the actuator (1).
(i) Remove the actuator (1).
(4) Installation of protection covers:

CAUTION: INSTALL PROTECTION COVERS ON ALL THE OPENINGS IMMEDIATELY TO PREVENT DAMAGE TO THE ENGINE.

(a) Make sure that you install all the necessary COVER - PROTECTION to prevent engine damage.

[Rev.10 from 2021] 2026.04.01 03:13:39 UTC