Installation of the Self Sealing Half-Coupling of the Yellow Pump Suction

TASK 29-13-39-400-805-A
Installation of the Self Sealing Half-Coupling of the Yellow Pump Suction

WARNING: OBEY THE HYDRAULIC SAFETY PROCEDURES.

WARNING: DO NOT TOUCH THE HYDRAULIC SYSTEM COMPONENTS FOR A SHORT TIME AFTER THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS STAY HOT FOR SOME TIME AND CAN CAUSE INJURY.

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

CAUTION: DO NOT LET HYDRAULIC FLUID FALL ON THE ENGINE. UNWANTED HYDRAULIC FLUID MUST BE REMOVED IMMEDIATELY WITH A CLEAN LINT FREE CLOTH. THE FLUID CAN CAUSE DAMAGE TO THE SURFACE PROTECTION AND TO SOME PARTS.

ZONE: 210
ZONE: 400
FIN: 3700GM ** 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	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	CONTAINER 10 L(2 1/2 USGAL)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 156.2 and 127.8 m.N (115.19 and 94.25 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.02ABA1)	Phosphate Ester Hydraulic Fluid-General Power - -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
400	POWER PLANT, NACELLES AND PYLONS
195BB, 198CB
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 462AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
5	RETAINER	AIPC 29-13-86-01-013
4	PACKING	AIPC 29-13-86-01-015
2	PACKING	AIPC 29-13-86-01-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 12-12-29-611-001-A	Fill the Hydraulic Fluid Reservoir with a Hand Pump
TASK 20-23-22-910-001-A	Marking of the Unions after Application of Standard or Specific Tightening Torque
TASK 20-29-00-911-002-A	Removal/Installation of an O-ring (Hydraulic Systems)
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
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 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A	Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A	Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A	Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
Self Sealing Half-Coupling of the Yellow Pump Suction

3. Job Set-up
Subtask 29-13-39-860-061-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 reservoir of the Yellow hydraulic system is depressurized.
(Ref. AMM TASK 29-14-00-614-001)

Subtask 29-13-39-941-061-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On AIR COND panel 30VU:

Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
Make sure that a WARNING NOTICE(S) is in position to tell persons not to operate this pushbutton switch.

(2) Make sure that a WARNING NOTICE(S) is in position to tell persons not to pressurize the Yellow hydraulic system:

On the HYD section of panel 40VU
On access door 198CB, on the ground-service panel of the Yellow hydraulic system.

(3) Make sure that a WARNING NOTICE(S) is in position on access door 195BB to tell persons not to pressurize the reservoir of the Yellow hydraulic system.
(4) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 29-13-39-010-056-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR

Subtask 29-13-39-040-051-A ** ON A/C NOT FOR ALL

D. Deactivation of the Thrust Reverser System for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).

Subtask 29-13-39-010-058-A ** ON A/C NOT FOR ALL

E. Get Access
(1) Make sure that the right thrust-reverser cowl-door is open (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR
(2) Make sure that an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

4. Procedure
Subtask 29-13-39-420-055-A ** ON A/C NOT FOR ALL

A. Installation of the Self Sealing Half-Coupling of the Yellow Pump Suction

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the hydraulic line end-fittings are serviceable.
(4) Make sure that the CONTAINER 10 L(2 1/2 USGAL) is in position below the hydraulic connections.
(5) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 29-13-86-01-020 PACKING (2) and AIPC 29-13-86-01-015 PACKING (4).
(6) Install the packing (2) on the self sealing half-coupling (3) (Ref. AMM TASK 20-29-00-911-002).
(7) Remove the PLUG - BLANKING from the port of the pylon fuel-hydraulic panel (1).
(8) Install the self sealing half-coupling (3) on the pylon fuel-hydraulic panel (1).
(9) TORQUE the self sealing half-coupling (3) to between 156.2 and 127.8 m.N (115.19 and 94.25 lbf.ft )

.
(10) Install the packing (4) and the new AIPC 29-13-86-01-013 RETAINER (5) on the self sealing half-coupling (3).
(11) Remove the PLUG - BLANKING from the hose half-coupling (6).
(12) Connect the hose half-coupling (6) to the self sealing half-coupling (3).
(13) Turn the sleeve of the hose half-coupling (6) until the teeth fully engage and you cannot turn the sleeve more.
(14) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).

Subtask 29-13-39-420-055-B ** ON A/C NOT FOR ALL

A. Installation of the Self Sealing Half-Coupling of the Yellow Pump Suction

CAUTION: USE TWO WRENCHES TO REMOVE OR INSTALL THE TUBE COUPLING NUTS:

ONE WRENCH TO HOLD THE UNION, AND
ONE TO LOOSEN OR TIGHTEN THE COUPLING NUT.

THIS PREVENTS DAMAGE TO THE PARTS.

CAUTION: DO NOT USE HIGH-DENSITY FLUID SKYDROL 500B-4 FOR A320NEO FAMILY. THE FLUID CAN CAUSE DAMAGE TO THE HYDRAULIC SYSTEM COMPONENTS.

(5) Apply the Phosphate Ester Hydraulic Fluid-General Power - - (Material No.02ABA1) to the new AIPC 29-13-86-01-020 PACKING (2) and AIPC 29-13-86-01-015 PACKING (4).
(6) Install the packing (2) on the self sealing half-coupling (3) (Ref. AMM TASK 20-29-00-911-002).
(7) Remove the PLUG - BLANKING from the port of the pylon fuel-hydraulic panel (1).
(8) Install the self sealing half-coupling (3) on the pylon fuel-hydraulic panel (1).
(9) TORQUE the self sealing half-coupling (3) to between 156.2 and 127.8 m.N (115.19 and 94.25 lbf.ft )

.
(10) Install the packing (4) and the new AIPC 29-13-86-01-013 RETAINER (5) on the self sealing half-coupling (3).
(11) Remove the PLUG - BLANKING from the sealing half-coupling (3).
(12) Connect the hose half-coupling (6) to the self sealing half-coupling (3).
(13) Turn the sleeve of the hose half-coupling (6) until the teeth fully engage and you cannot turn the sleeve more.
(14) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).

Subtask 29-13-39-710-055-A ** ON A/C NOT FOR ALL

B. Operational Test
(1) Pressurize the Yellow hydraulic reservoir (Ref. AMM TASK 29-14-00-614-002).
(2) Do an operational test of the Yellow hydraulic system (Ref. AMM TASK 29-13-00-710-002)
(3) After the dry motoring, make sure that there were no leaks from the hydraulic connections.
(4) Make sure that the level of the hydraulic fluid in the Yellow reservoir is correct. If necessary, fill the hydraulic reservoir (Ref. AMM TASK 12-12-29-611-001).

5. Close-up
Subtask 29-13-39-410-055-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Remove the container.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).
(4) Close the right thrust-reverser cowl-door (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
462AR.

Subtask 29-13-39-440-050-A ** ON A/C NOT FOR ALL

B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 29-13-39-410-056-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Close access doors 198CB and 195BB.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 00:21:03 UTC