Installation of the High Pressure Compressor (HPC) Stage 7 Solenoid Valve [IAE]

TASK 75-32-51-400-010-A
Installation of the High Pressure Compressor (HPC) Stage 7 Solenoid Valve

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.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 400
FIN: 4020KS1 ** ON A/C NOT FOR ALL
FIN: 4020KS2 ** ON A/C NOT FOR ALL
FIN: 4020KS3 ** ON A/C NOT FOR ALL

1. Reason for the Job
The HPC stage 7 solenoid valve 4020KS1 controls the HPC bleed valve at the top right position.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	COVER - PROTECTION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )
No specific	Torque wrench: range to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )
No specific	Torque wrench: range to between 221 and 204 lbf.in (2.50 and 2.31 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-001)	cleaning fluid
(Material No.V02-126)	lockwire
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-15-912-010-A	Connection of Electrical Connectors
TASK 71-00-00-710-017-B	Ground Test Requirements after Power Plant Module/Component Repair or Replacement Procedures
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 75-32-51-700-010-A	Functional Test of the HPC Stage 7 Solenoid Valve with Test Set IAE2R19437
HPC Stage 7 Solenoid Valves
Stage 7 Compressor Bleed Solenoid Valve Mounting Location

3. Job Set-up
Subtask 75-32-51-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

Subtask 75-32-51-010-052-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 75-32-51-630-050-A ** ON A/C NOT FOR ALL

C. Remove all the COVER - PROTECTION from the openings.

Subtask 75-32-51-110-050-A ** ON A/C NOT FOR ALL

D. Clean the solenoid valve and the mounting bracket faces.

WARNING: DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:

FLUSH IT AWAY WITH CLEAN WATER
GET MEDICAL AID.

(1) Make a lint free cloth moist with the cleaning fluid (Material No.V01-001) . Use the Textile-Lint free Cotton - (Material No.14SBA1) to clean the solenoid valve and the mounting bracket faces

HPC Stage 7 Solenoid Valves ** ON A/C NOT FOR ALL

4. Procedure
Subtask 75-32-51-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the HPC stage 7 solenoid valve.
(1) Attach the solenoid valve to the mounting bracket with the washers (5) and the bolts (4).
(2) TORQUE the bolts to between 45 and 36 lbf.in (0.51 and 0.41 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(3) Install the electrical connector
(a) Attach the electrical connector (6) to the solenoid valve (Ref. AMM TASK 70-23-15-912-010).
(b) Tighten the connector.
(4) Install the HP3 air inlet tube
(a) Connect the HP3 air inlet tube (1) to the solenoid valve.
(b) TORQUE the connector to between 221 and 204 lbf.in (2.50 and 2.31 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(c) Safety the connector with the lockwire (Material No.V02-126) .
(5) Install the HP3 air outlet tube.
(a) Connect the HP3 air outlet tube (2) to the solenoid valve.
(b) TORQUE the connector to between 177 and 159 lbf.in (2.00 and 1.80 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(c) Safety the connector with the lockwire (Material No.V02-126) .

5. Close-up
Subtask 75-32-51-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) 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
(3) Remove the WARNING NOTICE(S).

Subtask 75-32-51-720-050-B ** ON A/C NOT FOR ALL

B. Do a test of the HPC stage 7 solenoid valve (Ref. AMM TASK 75-32-51-700-010) or (Ref. AMM TASK 71-00-00-710-017).

[Rev.10 from 2021] 2026.04.01 03:12:21 UTC