W DOC AIRBUS | AMM A320F

Diaphragm Replacement at the Door Damper and Emergency Operation Cylinder

TASK 52-22-00-860-002-A
Diaphragm Replacement at the Door Damper and Emergency Operation Cylinder

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 833
ZONE: 834
ZONE: 835
ZONE: 843
ZONE: 844
ZONE: 845
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 4M (13 FT)-ADJUSTABLE
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.02BBB9)
Mineral Hydraulic Fluid-Damper - -
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
833
EMERGENCY EXITS
834
EMERGENCY EXITS
835
MID PASSENGER/CREW DOOR
843
EMERGENCY EXITS
844
EMERGENCY EXITS
845
MID PASSENGER/CREW DOOR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
25
SHEAR PIN
AIPC 52-22-14-01-030
32
DIAPHRAGM
AIPC 52-22-14-01-050
34
PACKINGS
AIPC 52-22-14-01-070
33
SEAL
AIPC 52-22-14-01-080
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 24-42-00-861-001-A
Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A
De-energize the Ground Service Network Supplied from the External Power
TASK 52-22-00-010-001-A
Opening of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-410-001-A
Closing of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-614-002-A
Charging of the Door Damper and Emergency Operation Cylinders at the Emergency Exit Doors
F Diaphragm Replacement ** ON A/C NOT FOR ALL
F Diaphragm Replacement ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 52-22-00-861-052-A ** ON A/C NOT FOR ALL
A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
Subtask 52-22-00-865-052-A ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUEIS/SLIDES/ARM AND WARN/FLT15WNP11
121VUEIS/SLIDES/ARM AND WARN/GND13WNP10
121VUEIS/SDAC1 AND 2/DOOR/DET/PAX48WVP05
Subtask 52-22-00-010-060-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Open the applicable emergency exit door (referred to as door) as required (Ref. AMM TASK 52-22-00-010-001).
   (2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the applicable door.
Subtask 52-22-00-860-084-A ** ON A/C NOT FOR ALL
D. Aircraft Maintenance Configuration
F Diaphragm Replacement ** ON A/C NOT FOR ALL
F Diaphragm Replacement ** ON A/C NOT FOR ALL
   (1) Make sure that the rigging pin (24) is correctly installed in the percussion mechanism.
   (2) Set the release lever (23) in its swiveled position as follows:
     (a) Remove and discard the lockwire from the knurled screw (22).
     (b) Loosen the knurled screw (22) so that the release lever (23) is moveable.
     (c) Move the release lever (23) rearward so that it comes free from the guide (26).
     (d) Turn the release lever (23) through 90 degrees to get access to the striker assembly (35).
     (e) Tighten the knurled screw (22) to safety the swiveled release lever (23).
   (3) Operate the pressure charging valve (29) to make sure that the door damper and emergency cylinder (21) is bled.
4. Procedure
Subtask 52-22-00-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Diaphragm
WARNING: MAKE SURE THAT THE DOOR-DAMPER AND EMERGENCY OPERATION CYLINDER IS FULLY DEPRESSURIZED BEFORE YOU REMOVE THE STRIKER ASSEMBLY. IF NOT, REMAINING PRESSURE CAN CAUSE INJURY.
   (1) Remove the striker assembly (35) as follows:
     (a) Remove the screws (36) from the striker assembly (35).
     (b) Remove the the striker assembly (35) from the housing assy (28).
   (2) Remove and discard the shear pin (25) from the operation lever (27).
   (3) Remove the diaphragm (32), the spring (31) and the spacer (30).
   (4) Discard the diaphragm (32).
   (5) Remove and discard the seal (33) and the packings (34) from the striker assembly (35).
Subtask 52-22-00-860-085-A ** ON A/C NOT FOR ALL
B. Preparation for Installation
   (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (2) Clean the component interfaces and the adjacent area.
   (3) Do an inspection of the component interfaces and the adjacent area.
   (4) Make sure that the inside bore of the spacer (30) is clear.
   (5) Apply Mineral Hydraulic Fluid-Damper - - (Material No.02BBB9) to the new AIPC 52-22-14-01-080 SEAL (33) and the two new AIPC 52-22-14-01-070 PACKINGS (34).
Subtask 52-22-00-420-050-B ** ON A/C NOT FOR ALL
C. Installation of the Diaphragm
WARNING: MAKE SURE THAT YOU INSTALL THE CORRECT (ALUMINUM) SHEAR PIN ON THE DOOR-DAMPER PERCUSSION DEVICE. INSTALLATION OF AN INCORRECT SHEAR PIN WILL PREVENT OPERATION OF THE ACTUATOR IN THE EMERGENCY MODE.
   (1) Install the spacer (30), the spring (31) and the new AIPC 52-22-14-01-050 DIAPHRAGM (32) in the housing assembly (28).
   (2) Install the striker assembly (35) as follows:
     (a) Install the seal (33) and the packings (34) to the striker assembly (35).
     (b) Put the striker assembly (35) in position on the housing assembly (28).
     (c) Install the screws (36) on the striker assembly (35).
     (d) Tighten the screws (36).
NOTE: When the screws (36) are tight, there is a clearance of between 0.3 mm (0.01 in.) to 0.4 mm (0.02 in.) between the striker assembly (35) and the housing assembly (28).
   (3) Install the new AIPC 52-22-14-01-030 SHEAR PIN (25) to the operation lever (27).
5. Close-up
Subtask 52-22-00-865-053-A ** ON A/C NOT FOR ALL
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUEIS/SLIDES/ARM AND WARN/FLT15WNP11
121VUEIS/SLIDES/ARM AND WARN/GND13WNP10
121VUEIS/SDAC1 AND 2/DOOR/DET/PAX48WVP05
Subtask 52-22-00-860-086-B ** ON A/C NOT FOR ALL
B. Put the system back to the serviceable condition.
   (1) Set the release lever (23) in its armed position as follows:
     (a) Loosen the knurled screw (22) and turn the release lever (23) 90 degrees in the counterclockwise direction so that it can engage with the guide (26).
     (b) Carefully push the release lever (23) in the forward direction so that it moves smoothly through the guide (26).
     (c) Move the release lever (23) to the end position and tighten the knurled screw (22) to safety the armed release lever (23).
     (d) Safety the knurled screw (22) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
     (e) Make sure that the release lever (23) engages correctly with the valve guide (35).
   (2) Fill the pressure accumulator to 123 bar (1783.9637 psi) (Ref. AMM TASK 52-22-00-614-002).
   (3) Remove the rigging pin (24) from the housing assy (28).
   (4) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001)
Subtask 52-22-00-410-055-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the emergency exit door (Ref. AMM TASK 52-22-00-410-001).
   (3) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 01:38:37 UTC
"Aviabrain" 2025