Installation of the Stage 10 Air Solenoid Valve [IAE]

TASK 75-23-52-400-010-A
Installation of the Stage 10 Air Solenoid Valve

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

FIN: 4028KS ** 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	AR	ACCESS PLATFORM 1M(3 FT)
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.V02-119)	corrosion resistant steel lockwire
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
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 70-40-11-911-014-A	Locking Devices General Information
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)
Stage 10 Air Solenoid Valve

3. Job Set-up
Subtask 75-23-52-860-050-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 1M(3 FT) is in position.

Subtask 75-23-52-010-051-A ** ON A/C NOT FOR ALL

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

Subtask 75-23-52-630-050-A ** ON A/C NOT FOR ALL

C. Remove all the applicable covers/caps/plugs from the openings.

Subtask 75-23-52-110-050-A ** ON A/C NOT FOR ALL

D. Clean the mating faces
(1) Make a Textile-Lint free Cotton - (Material No.14SBA1) moist with cleaning fluid (Material No.V01-001) . Use the cloth to clean the stage 10 air solenoid valve and the mounting bracket mating face

Stage 10 Air Solenoid Valve ** ON A/C NOT FOR ALL

4. Procedure
Subtask 75-23-52-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Stage 10 Air Solenoid Valve
(1) Install the stage 10 air solenoid valve.
(a) Attach the valve (9) to the mounting bracket (4) with the washers (7) and the bolts (8).
(b) 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).
(2) Install the electrical connector 4028KS-A (Ref. AMM TASK 70-23-15-912-010).
(a) Attach the electrical connector (6) to the valve (9).
(b) Tighten the connector.
(3) Install the HP3 air inlet tube.
(a) Connect the air inlet tube (2) to the valve (9) and the HP3 air tube (1).
(b) TORQUE the tube connectors 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 connectors with corrosion resistant steel lockwire (Material No.V02-119) (Ref. AMM TASK 70-40-11-911-014).
(4) Install the HP3 air outlet tube.
(a) Connect the air outlet tube (3) to the valve (9).
(b) TORQUE the tube 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 corrosion resistant steel lockwire (Material No.V02-119) (Ref. AMM TASK 70-40-11-911-014).

5. Close-up
Subtask 75-23-52-410-050-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 access platform(s).
(4) Remove the WARNING NOTICE(S).

Subtask 75-23-52-720-050-A ** ON A/C NOT FOR ALL

B. No test required.

[Rev.10 from 2021] 2026.04.01 03:11:21 UTC