Installation of the Engine-2 Pump-Suction Self-Sealing-Coupling

TASK 29-13-38-400-802-A
Installation of the Engine-2 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, 447AL
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 29-10-00-864-002-A	Depressurize the Yellow 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 29-13-00-710-002-A	Operational Test of the Yellow Hydraulic System
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 29-23-00-863-002-A	Pressurize the Yellow Hydraulic System from the Green Hydraulic System through the PTU with the Ground Service Cart
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-2 Pump-Suction Self-Sealing-Coupling

3. Job Set-up
Subtask 29-13-38-860-055-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the Yellow hydraulic system is depressurized (Ref. AMM TASK 29-10-00-864-002).
(2) Make sure that the Yellow hydraulic reservoir is depressurized (Ref. AMM TASK 29-14-00-614-001).
(3) On the ground service panel 198CB, Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to pressurize the Yellow 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 Yellow hydraulic reservoir.
(5) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at engine 2.
(6) Make sure that the left fan-cowl door 447AL is open (Ref. AMM TASK 71-13-00-010-010).
(7) Make sure that access door 195BB is open.

Subtask 29-13-38-941-055-A ** ON A/C NOT FOR ALL

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

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

(2) Make sure that the engine 2 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 Yellow 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 the CONTAINER 5 L (1.32 USGAL) is in position below the fluid disconnect panel to collect the hydraulic fluid.

Subtask 29-13-38-865-053-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/Y HYD/PUMP ENG2/MONG	3700GD	Q37
121VU	HYDRAULIC/Y HYD/PUMP ENG2/CTL	3701GD	Q36

4. Procedure
Subtask 29-13-38-420-054-A ** ON A/C NOT FOR ALL

A. Installation of the Engine-2 Pump-Suction Self-Sealing-Coupling (3672GM)
(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 29-13-38-870-052-A ** ON A/C NOT FOR ALL

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

Subtask 29-13-38-710-052-A ** ON A/C NOT FOR ALL

C. Operational Test
(1) Pressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-002).
(2) Pressurize the Yellow hydraulic system
(Ref. AMM TASK 29-23-00-863-002).
(3) Do the operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002).
(4) During the dry motoring, make sure that there are no leaks from the connections.
(5) Make sure that the level of the hydraulic fluid in the Yellow 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 Yellow reservoir. If not, the level of the fluid can decrease too much if the bleeding is not correct.

(6) Remove the CONTAINER 10 L(2 1/2 USGAL) and the absorbent material.

5. Close-up
Subtask 29-13-38-410-052-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 00:20:49 UTC