(3) Remove the access platform(s).

 1EFF : 301-399, 1 52-22-00Page 227 1 1 May 01/04 1 1 1CES 1 TASK 52-22-00-860-005

 Replacement of the Charging Valve and Percussion Mechanism Seals
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
 No specific 1 ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
 No specific Torque Wrench : to 3 daN (6.74 lbf)

 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 02-001 USA MIL-H-5606
 OIL, HYDRAULICPETROLEUM FLUID (Ref. 20-31-00) Material No. 19-010 USA AMS 5687
 LOCKWIRE STAINLESS STEEL ANNEALED 0.8MM DIA
 (Ref. 20-31-00)
 C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
5 shear pin 52-22-14 01 -030 9 packing 52-22-14 01 -110 15 seal 52-22-14 01 -080 16 packings 52-22-14 01 -070
 1EFF : 301-399, 1 52-22-00Page 228 1 1 May 01/04 1 1 1CES 1

 D. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001  Energize the Ground Service Network from the External Power
 24-42-00-862-001  De-energize the Ground Service Network Supplied from the External Power
 52-22-00-010-001  Opening of the Emergency Exit Doors from the Passenger Compartment
 52-22-00-410-001  Closing of the Emergency Exit Doors from the Passenger Compartment
 52-22-00-614-002  Charging of the Door Damper and Emergency Operation Cylinders (1600WM, 1601WM, 1602WM, 1603WM) at the Emergency Exit Doors
 52-22-00-991-031  Fig. 206
 3. Job Set-up__________
 Subtask 52-22-00-861-054
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 Subtask 52-22-00-865-066
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU EIS/SLIDES/ARM AND WARN/FLT 15WN P11 121VU EIS/SLIDES/ARM AND WARN/GND 13WN P10 121VU EIS/SDAC1 AND 2/DOOR/DET/PAX 48WV P05
 Subtask 52-22-00-010-076
 C. Get Access
 (1)
 Open the applicable emergency exit door (referred to as the door) (Ref. TASK 52-22-00-010-001).

 (2)
 Make sure that the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the applicable door.

 1EFF : 301-399, 1 52-22-00Page 229 1 1 May 01/04 1 1 1CES 1 Subtask 52-22-00-860-087

 D. Aircraft Maintenance Configuration
 (Ref. Fig. 206/TASK 52-22-00-991-031)

 (1)
 Make sure that the rigging pin (4) is correctly installed in the percussion mechanism.

 (2)
 Remove and discard the shear pin (5).

 (3)
 Set the release lever (3) as follows:

 (a)
 Remove and discard the lockwire from the knurled screw (2).

 (b)
 Loosen the knurled screw (2) sufficiently until you can move the release lever (3).

 (c)
 Move the release lever (3) rearward until it is free from the guide (6).

 (d)
 Turn the release lever (3) through 90 degrees clockwise to get access to the striker assembly (17).

 (e)
 Tighten the knurled screw (2) sufficiently to safety the release lever (3).

 (4)
 Remove the dust cap (11) from the pressure charging valve (10).

 (5)
 Operate the pressure charging valve (10) until the door damper and emergency operation cylinder (1) is fully depressurized.

 4. Procedure
_________ Subtask 52-22-00-020-052
 A. Removal of the Percussion Mechanism Seal (15) and the Packings (16) 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.
　
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