Installation of the Bleed Valve Fuel Gear Motor Assembly [CFMB]

TASK 75-31-10-400-002-A
Installation of the Bleed Valve Fuel Gear Motor Assembly

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

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** 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 120 and 110 lbf.in (1.36 and 1.24 m.daN )
No specific	Torque wrench: range to between 178.5 and 161.5 lbf.in (2.02 and 1.82 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2101)	graphite grease
(Material No.CP2442)	engine oil
(Material No.CP5070)	vaseline

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. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
130	O-RING	AIPC 75-31-10-01-040
16	O-RING	AIPC 75-31-10-01-050

E. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 71-00-00-710-006-B	Minimum Idle Check
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 73-29-00-710-040-B	Operational Test of the FADEC on the Ground (with Engine Motoring)
TASK 73-29-00-710-040-B-02	Operational Test of the FADEC on the Ground (with Engine Non motoring)
TASK 75-31-20-000-002-A	Removal of the Bleed Valve Stop Mechanism
TASK 75-31-20-400-002-A	Installation of the Bleed Valve Stop Mechanism
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
Bleed Valve Fuel Gear Motor Assembly
Bleed Valve Fuel Gear Motor Assembly

3. Job Set-up
Subtask 75-31-10-860-051-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 75-31-10-865-055-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VU	FUEL/LP VALVE/MOT1/ENG1	1QG	A08
121VU	FUEL/LP VALVE/MOT2/ENG1	3QG	M25
FOR FIN: 1000EM2 (ENGINE2)
49VU	FUEL/LP VALVE/MOT1/ENG2	2QG	A09
121VU	FUEL/LP VALVE/MOT2/ENG2	4QG	M26

Subtask 75-31-10-010-055-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Make sure that the thrust reverser doors are open (Ref. AMM TASK 78-36-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 75-31-10-040-053-A ** ON A/C NOT FOR ALL

D. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).

4. Procedure
Subtask 75-31-10-010-058-A ** ON A/C NOT FOR ALL

A. Make sure that the bleed valve fuel gear motor (40) and the VBV stop mechanism (140) are removed as a complete assembly (Ref. AMM TASK 75-31-20-000-002).
(1) If the gear motor nipples are removed, install the nipples as follows:
(a) Lightly coat a new AIPC 75-31-10-01-050 O-RING (16) with vaseline (Material No.CP5070) and install on nipple (15). Install the nipple (15) on the forward port of the gear motor (OPEN port) and TORQUE to between 178.5 and 161.5 lbf.in (2.02 and 1.82 m.daN )

.
(b) Lightly coat a new AIPC 75-31-10-01-050 O-RING (16) with vaseline (Material No.CP5070) and install on nipple (15). Install the nipple (15) on the aft port of the gear motor (CLOSE port) and TORQUE to between 178.5 and 161.5 lbf.in (2.02 and 1.82 m.daN )

Subtask 75-31-10-420-051-A ** ON A/C NOT FOR ALL

B. Installation of the Bleed Valve Fuel Gear Motor
(1) Assemble the fuel gear motor (40) to the stop mechanism (140) as follows:

CAUTION: KEEP THE MOTOR PERPENDICULAR TO THE MOUNTING SURFACE TO PREVENT DAMAGE TO THE SPLINES, WHEN YOU INSTALL THE BLEED VALVE FUEL GEAR MOTOR ON THE BLEED VALVE STOP MECHANISM.

(a) Lubricate a new AIPC 75-31-10-01-040 O-RING (130) with engine oil (Material No.CP2442) and install it in the groove of the fuel gear motor housing.
(b) Engage the fuel gear motor (40) in the bleed valve stop mechanism (140). Align the 4 attachment holes of the fuel gear motor with holes on the stop mechanism mounting baseplate. Make sure that the O-ring (130) remains correctly installed in its groove.
(c) Lubricate the 4 bolts (100) with graphite grease (Material No.CP2101) and install them with washers (110). Hand-tighten bolts (100).
(d) TORQUE the 4 bolts (100) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN )

Subtask 75-31-10-410-054-A ** ON A/C NOT FOR ALL

C. Install the full assembly of bleed valve fuel gear motor and stop mechanism on the engine as told in the installation of the bleed valve stop mechanism (Ref. AMM TASK 75-31-20-400-002).

5. Close-up
Subtask 75-31-10-410-052-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 thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
(3) Remove the access platform(s).

Subtask 75-31-10-440-051-A ** ON A/C NOT FOR ALL

B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 75-31-10-865-051-A ** ON A/C NOT FOR ALL

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
49VU	FUEL/LP VALVE/MOT1/ENG1	1QG	A08
121VU	FUEL/LP VALVE/MOT2/ENG1	3QG	M25
FOR FIN: 1000EM2 (ENGINE2)
49VU	FUEL/LP VALVE/MOT1/ENG2	2QG	A09
121VU	FUEL/LP VALVE/MOT2/ENG2	4QG	M26

Subtask 75-31-10-710-051-A ** ON A/C NOT FOR ALL

D. Do these tests:
(1) Do a FADEC ground test (Ref. AMM TASK 73-29-00-710-040).
(2) Do a minimum idle check (Ref. AMM TASK 71-00-00-710-006).

Subtask 75-31-10-410-053-A ** ON A/C NOT FOR ALL

E. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the WARNING NOTICE(S).

Subtask 75-31-10-862-050-A ** ON A/C NOT FOR ALL

F. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 03:10:33 UTC