Installation of the Pylon Manifold

TASK 29-11-16-400-801-A
Installation of the Pylon Manifold

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

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.

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: 470
FIN: 1030GM ** 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 3M (10 FT)- ADJUSTABLE
No specific	1	CONTAINER 20L (5 USGAL)
No specific	AR	WARNING NOTICE(S)
No specific	1	WRENCH - CROWFOOT
No specific	Torque wrench: range to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )
No specific	Torque wrench: range to between 9.5 and 8.5 m.daN (70.06 and 62.68 lbf.ft )
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
470	ENGINE 1 AFT PYLON
195BB, 197CB

C. 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 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 27-00-00-080-002-A	Removal of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
TASK 27-00-00-480-002-A	Installation of the Flap/Slat Control-Lever Locking Tool (98D27803000000)
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
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 29-11-17-400-802-A	Installation of the Engine-Pump Pressure Switch
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 54-54-00-000-802-A	Removal of the Rear Pylon Fairing (RPF)
TASK 54-54-00-400-802-A	Installation of the Rear Pylon Fairing (RPF)
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
Pylon Manifold

3. Job Set-up
Subtask 29-11-16-860-051-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)
(2) Make sure that the reservoir of the Green hydraulic system is depressurized
(Ref. AMM TASK 29-14-00-614-001)
(3) Make sure that the flaps are in the fully retracted position (Ref. AMM TASK 27-50-00-866-009).

Subtask 29-11-16-941-051-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 (ON legend 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 Green hydraulic system:

On the HYD section of panel 40VU
On the ground service panel of the Green 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 Green hydraulic system.
(4) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
(5) On FLAPS panel 114VU:

Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is in position on the flap/slat control lever (Ref. AMM TASK 27-00-00-480-002).
Make sure that a WARNING NOTICE(S) is in position on the flap/slat control lever to tell persons not to operate the flap/slat controls.

Subtask 29-11-16-020-052-A ** ON A/C NOT FOR ALL

C. Make sure that the rear pylon fairing is removed (Ref. AMM TASK 54-54-00-000-802).

Subtask 29-11-16-010-051-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Make sure that an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at the rear pylon.

Subtask 29-11-16-941-052-A ** ON A/C NOT FOR ALL

E. Preparation for Installation
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that a CONTAINER 20L (5 USGAL) is in position below the pylon manifold.

4. Procedure
Subtask 29-11-16-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Pylon Manifold
(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) Install the pylon manifold (6) on the pylon.
(5) Do an electrical bonding on the pylon manifold (6) at the top bolt (1) (Ref. AMM TASK 20-28-00-912-802).
(6) Install the bolts (1), the washers (2) and the nuts (7). Do not tighten.
(7) Remove the PLUG-BLANKING from each disconnected line end.
(8) Connection of the tubes

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.

(a) Install a WRENCH - CROWFOOT on the flats of the pylon manifold (6) to hold it.
(b) Connect the tube (8) to the pylon manifold (6).
(c) TORQUE the tube (8) to between 9.5 and 8.5 m.daN (70.06 and 62.68 lbf.ft )

.
(d) Tighten the nuts (7).
(e) Connect the tube (5) to the pylon manifold (6).
(f) TORQUE the tube (5) to between 9.5 and 8.5 m.daN (70.06 and 62.68 lbf.ft )

.
(g) Connect the tube (4) to the pylon manifold (6).
(h) TORQUE the tube (4) to between 5.9 and 5.4 m.daN (43.51 and 39.82 lbf.ft )

.
(9) Install the engine-pump pressure switch (3) on the pylon manifold (6) (Ref. AMM TASK 29-11-17-400-802).
(10) Identify the tightened union nuts with a red line
(Ref. AMM TASK 20-23-22-910-001).

Subtask 29-11-16-710-050-A ** ON A/C NOT FOR ALL

B. Operational Test
(1) Remove the CONTAINER 20L (5 USGAL).
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Do the operational test of the Green hydraulic system (Ref. AMM TASK 29-11-00-710-001).
(4) After the dry-motoring, make sure that there were no leaks from the engine-pump pressure switch (3) and the tubes (4), (5) and (8).
(5) 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).

5. Close-up
Subtask 29-11-16-020-053-A ** ON A/C NOT FOR ALL

A. Install the rear pylon fairing (Ref. AMM TASK 54-54-00-400-802).

Subtask 29-11-16-410-050-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Close access doors 197CB and 195BB.
(2) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat control lever (Ref. AMM TASK 27-00-00-080-002).
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.01 00:14:32 UTC