W DOC AIRBUS | AMM A320F

Removal of the Pylon Manifold

TASK 29-11-16-000-801-A
Removal 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
PLUG - BLANKING
No specific
AR
WARNING NOTICE(S)
No specific
1
WRENCH - CROWFOOT
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 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 29-11-17-000-802-A
Removal 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 71-00-00-860-833-A
Procedure to Prevent Engine Motoring
F Pylon Manifold
3. Job Set-up
Subtask 29-11-16-860-050-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) Depressurize the reservoir of the Green hydraulic system
(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 29-11-16-941-050-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).
  • Put a WARNING NOTICE(S) in position to tell persons not to operate this pushbutton switch.
   (2) Open access door 197CB.
   (3) On the ground-service panel of the Green hydraulic system:
  • Put a WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system.
   (4) On the HYD section of panel 40VU:
  • Put WARNING NOTICE(S) in position to tell persons not to pressurize the Green hydraulic system.
   (5) Open access door 195BB and put a WARNING NOTICE(S) in position to tell persons not to pressurize the reservoir of the Green hydraulic system.
   (6) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
   (7) On FLAPS panel 114VU:
  • Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever (Ref. AMM TASK 27-00-00-480-002).
  • Put a WARNING NOTICE(S) on the flap/slat control lever to tell persons not to operate the flap/slat controls.
Subtask 29-11-16-020-050-A ** ON A/C NOT FOR ALL
C. Remove the rear pylon fairing (Ref. AMM TASK 54-54-00-000-802).
Subtask 29-11-16-010-050-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at the rear pylon.
4. Procedure
Subtask 29-11-16-020-051-A ** ON A/C NOT FOR ALL
A. Removal of the Pylon Manifold
   (1) Put a CONTAINER 20L (5 USGAL) below the pylon manifold (6) to collect the remaining fluid.
   (2) Remove the engine-pump pressure switch (3) from the pylon manifold (6) (Ref. AMM TASK 29-11-17-000-802).
   (3) Disconnection 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) Disconnect the tubes (4),(5) and (8) from the pylon manifold (6).
   (4) Put the PLUG-BLANKING in each disconnected line end.
   (5) Remove the bolts (1), the washers (2) and the nuts (7).
   (6) Remove the pylon manifold (6) from the pylon.
[Rev.10 from 2021] 2026.04.01 00:14:31 UTC
"Aviabrain" 2025