(e)
Tighten the knurled screw (22) to safety the swiveled release lever (23).
(2)
Operate the pressure charging valve (29) to make sure that the door damper and emergency cylinder (21) is bled.
4. Procedure
_________
(Ref. Fig. 205/TASK 52-22-00-991-005) Subtask 52-22-00-020-050
A. Removal of the Diaphragm (32) 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 (33) and the spacer (30). NOTE : Discard the diaphragm (32).
____
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Diaphragm Replacement
Figure 205/TASK 52-22-00-991-005
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1 1 May 01/04
1 1
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(4) Remove and discard the seal (33) and the packings (34) from the striker assembly (35).
Subtask 52-22-00-860-085
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 interface and/or the adjacent area.
(3)
Do an inspection of the component interface and/or the adjacent area.
(4)
Make sure that the inside bore of the spacer (30) is clear.
(5)
Apply HYDRAULIC FLUIDS (Material No. 02-001) to the new seal (33) and the two new packings (34).
Subtask 52-22-00-420-050
C. Installation of the Diaphragm (32) 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 a new diaphragm (32) in the housing assy (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 assy
(28) and attach with it the screws (36).
NOTE : Make sure that the clearance between the striker assembly
____ (35) and the housing assy (28) is within 0.3 to 0.4 mm
(0.012 to 0.016 in).
(3) Install a new shear pin (25) to the operation lever (27).
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5. Close-up
________ Subtask 52-22-00-865-053
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 48WV, 13WN, 15WN
Subtask 52-22-00-860-086
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 MISCELLANEOUS (Material No. 19-010).
(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. 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. TASK 24-42-00-862-001)
Subtask 52-22-00-410-055
C. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the emergency exit door (Ref. TASK 52-22-00-410-001).
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