MISCELLANEOUS (Material No. 19-010).
 (c) For the support rod (30):
 1 Remove the nuts (43) and (52), the washers (44) and (51) and
_
 the bolts (46) and (50).

 2 Temporarily attach the support rod (60) to the aircraft
_
 structure.

 3 Move the support rod (30) away from the clevis (33).
_ 4 Bend back the lock tabs of the washer (42) and loosen the nut
_
 (48).

 5 Remove the rod eye-end (49) and remove and discard the washer
_
 (42).

 6 Put a new washer (42) in position on the rod eye-end (49) and
_
 install the rod eye-end (49) in the support rod (30).

 7 Turn the rod eye-end (49) to get the necessary adjustment.
_
 8 Put the support rod (30) in position in the clevis (33) and

_
 install the bolt (50), the washer (51) and the nut (52).

 9 Hold the rod eye-end (49) and tighten the nut (48).
_ NOTE : Make sure that there are sufficient threads of the rod
____ eye-end (49) engaged in the support rod (30). To do this you must put a suitable piece of wire in the inspection hole (47) in the support rod (30). The wire should not go fully through the the support rod (30).
 10 Bend back the lock tabs on the washer (42) to safety the nut
__ (48).
 11 Remove the temporary attachment and put the fork end (45) in
__ position on the support rod (30).
 12 Install the bolt (46), the washer (44) and the nut (43).
__
 1EFF : ALL 1 21-63-42Page 419 1 1 Aug 01/05R 1 1 1CES 1

 Subtask 21-63-42-420-053
 C. Final Installation
 (1)
 Make sure that the dimension X at the sleeve (25) is in tolerance.

 (2)
 Tighten the bolts (15).

 (3)
 Make sure that the work area is clean and clear of tool(s) and other items.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 Subtask 21-63-42-865-053
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HH, 2HH, 3HH, 4HH, 21HH, 22HH, 23HH, 24HH

R **ON A/C 401-499,
 Subtask 21-63-42-865-053-A
 D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 49HH, 50HH, 51HH, 52HH, 53HH, 54HH, 55HH, 56HH.
 **ON A/C ALL
 Subtask 21-63-42-710-050
 E. Test
 (1)
 Do the pre-conditioning through the APU (Ref. TASK 12-33-21-618-001) or the HP ground connector (Ref. TASK 12-33-21-618-001).

 (2)
 In the air pack compartment do a leak check of the trim-air check valve connections.

 NOTE : Leaks are not permitted.
____
 (3) After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-33-21-618-001) or (Ref. TASK 12-33-21-618-001).

 5. Close-up
________ Subtask 21-63-42-410-050-A
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Close the access panel (Ref. TASK 53-35-13-400-002),

 (a)
 FOR 18HM
 191BB.

 (b)
 FOR 19HM
 192FB.

 Subtask 21-63-42-862-050
 B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).

 CHECK VALVE -TRIM AIR (18HM,19HM) - INSPECTION/CHECK
____________________________________________________ TASK 21-63-42-210-001 Detailed Visual Inspection of Trim-Air Check-Valves Flappers for Condition and
 Operation
 1.
 Reason for the Job

__________________
 Refer to the MPD TASK: 216242-01

 2.
 Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-63-42-000-001 Removal of the Trim-Air Check Valves 18HM and 19HM 21-63-42-400-001 Installation of the Trim-Air Check Valves 18HM and 19HM
 3. Job Set-up
__________ Subtask 21-63-42-020-052
 A. Remove the trim-air check valve (Ref. TASK 21-63-42-000-001).
 4. Procedure
_________ Subtask 21-63-42-210-054
 A. Detailed Visual Inspection
 (1)
 Make sure that the check valve is clean.

 (2)
 Make a full visual inspection of the valve-flappers, their seats, the hinge pin and the return spring for signs of:

 -cracks,
　
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