Installation of the Engine-1 Pump-Suction Self-Sealing-Coupling

TASK 29-11-38-400-802-A
Installation of the Engine-1 Pump-Suction Self-Sealing-Coupling

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 2M (6 FT) - ADJUSTABLE
No specific	1	CONTAINER 5 L (1.32 USGAL)
No specific	AR	WARNING NOTICE(S)
No specific	1	WRENCH - STANDARD
No specific	Torque wrench: range to between 10.17 and 9.04 m.daN (75.00 and 66.67 lbf.ft )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
195BB, 437AL
FOR [1000EM1] (ENGINE-1)
437AL
FOR [1000EM2] (ENGINE-2)
447AL

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 12-12-29-611-002-A	Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart
TASK 29-10-00-863-001-A	Pressurize the Green Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-11-00-710-001-A	Operational Test of the Green Hydraulic System
TASK 29-11-51-860-040-A	Hydraulic Maintenance Procedure after an Engine Installation (with Engine Pump Installed) or after an Engine Pump Installation
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
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)
Engine-1 Pump-Suction Self-Sealing-Coupling

3. Job Set-up
Subtask 29-11-38-860-055-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the Green hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-23-00-864-001).
(2) Make sure that the Green hydraulic reservoir is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) On the ground service panel 197CB:

Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system.

(4) Make sure that the WARNING NOTICE(S) is (are) in position on access door 195BB to tell persons not to pressurize the Green hydraulic reservoir.

Subtask 29-11-38-941-055-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:

Make sure that a WARNING NOTICE(S) is (are) in position to tell persons not to start the engine.

(2) Make sure that the engine 1 shutdown occurred not less than five minutes before you do this procedure.
(3) In the cockpit, on the HYD section of the HYD/FUEL panel 40VU:

Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Green hydraulic system.

(4) 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 the WARNING NOTICE(S) is (are) in position to tell persons not to energize the FADEC 1(2).

(5) Make sure that a CONTAINER 5 L (1.32 USGAL) is in position below the hydraulic tube connection to the switch to collect the hydraulic fluid.

Subtask 29-11-38-865-054-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/G HYD/PUMP ENG1/CTL	1701GK	R35
121VU	HYDRAULIC/G HYD/PUMP ENG1/MONG	1702GK	R34

Subtask 29-11-38-010-054-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at door 437AL.
(2) Make sure that the left fan cowl door is open (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)

437AL

4. Procedure
Subtask 29-11-38-420-052-A ** ON A/C NOT FOR ALL

A. Installation of the Engine 1 Pump Suction Self-Sealing Coupling (1672GK)
(1) Remove the protective covers from the suction hose (5), self-sealing coupling (15) and union on the hydraulic pump (10).
(2) Connect the self-sealing coupling (15) to the union on the hydraulic pump (10).
(3) TORQUE the self-sealing coupling (15) to between 10.17 and 9.04 m.daN (75.00 and 66.67 lbf.ft )

.
(a) Use a second WRENCH - STANDARD to hold the union on the hydraulic pump when you torque the self-sealing coupling (15).
(4) Connect the suction hose (5) to the self-sealing coupling (15).
(5) TORQUE the coupling nut on the suction hose (5) to between 10.17 and 9.04 m.daN (75.00 and 66.67 lbf.ft )

.
(a) Use a second WRENCH - STANDARD to hold the self-sealing coupling (15) when you torque the coupling nut on the suction hose (5).
(6) Connect the hose coupling half to the fluid disconnect panel and tighten the coupling nut with your hand.
(7) TORQUE the coupling nut to between 10.17 and 9.04 m.daN (75.00 and 66.67 lbf.ft )

Subtask 29-11-38-870-052-A ** ON A/C NOT FOR ALL

B. Bleeding
(1) Bleed the system (Ref. AMM TASK 29-11-51-860-040).

Subtask 29-11-38-865-055-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
121VU	HYDRAULIC/G HYD/PUMP ENG1/CTL	1701GK	R35
121VU	HYDRAULIC/G HYD/PUMP ENG1/MONG	1702GK	R34

Subtask 29-11-38-863-052-A ** ON A/C NOT FOR ALL

D. Hydraulic Pressurization
(1) Pressurize the Green hydraulic reservoir (Ref. AMM TASK 29-14-00-614-002).
(2) Pressurize the Green hydraulic system
(Ref. AMM TASK 29-10-00-863-001) or (Ref. AMM TASK 29-23-00-863-001).

Subtask 29-11-38-710-052-A ** ON A/C NOT FOR ALL

E. Test
(1) Do an operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
(2) During the dry motoring, make sure that there are no leaks from the connections.
(3) Make sure that the level of the hydraulic fluid in the Green reservoir is correct. If necessary, fill the reservoir (Ref. AMM TASK 12-12-29-611-001) or (Ref. AMM TASK 12-12-29-611-002).

NOTE: There must be between 14 and 16 liters of hydraulic fluid in the Green reservoir. If not, the level of the fluid can decrease too much if the bleeding is not correct.

5. Close-up
Subtask 29-11-38-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Remove the access platform(s).
(3) Make sure that the work area is clean and clear of tools and other items.
(4) Close the left fan-cowl door (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM2] (ENGINE-2)

447AL

(5) Close access door 195BB.

[Rev.10 from 2021] 2026.04.01 00:15:25 UTC