R Subtask 21-61-41-865-058
R B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and
R tagged
R -------------------------------------------------------------------------------
R PANEL DESIGNATION IDENT. LOCATION
R -------------------------------------------------------------------------------
R FOR 10HM
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 1HH X22
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 3HH X21
R **ON A/C 106-149, 303-399,
R 122VU 4HH Y19
R **ON A/C 106-149, 159-199, 211-299, 301-399,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
R **ON A/C 159-199, 211-299, 301-302,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19
R **ON A/C 106-149, 159-199, 211-299, 301-399,
R FOR 11HM
R 122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 21HH W22
R 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 23HH W21
R 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 24HH Y21
R 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 22HH Y20
R 4. Procedure_________
R (Ref. Fig. 403/TASK 21-61-41-991-003)
R Subtask 21-61-41-420-052
R A. Installation of the Back Up Solenoid
R (1) Put the back up solenoid (5) in position and install the screw (4),
R the washer (6), and the nut (7).
R (2) Remove the blanking plugs from the disconnected line ends.
R (3) Apply a small quantity of COMMON GREASE (Material No. 04-014A) to the
R threaded parts of the connectors (2) and (3).
R (4) At the solenoid (5), install the sense line connectors (2) and (3).
R (5) TORQUE the sense line connectors (2) and (3) to between 0.9 and 0.915
R m.daN (79.64 and 80.97 lbf.in).
R (6) Remove the blanking caps and connect the electrical connector (1).
R Subtask 21-61-41-865-059
R B. Remove the safety clip(s) and the tag(s) and close this(these) circuit
R breaker(s):
R (1) FOR 25HH
R - 1HH, 2HH, 3HH, 4HH.
R (2) FOR 40HH
R - 21HH, 22HH, 23HH, 24HH.
R Subtask 21-61-41-710-052
R C. Leak and Operational Test of the Sense Lines Assembly
R (1) Do the pre-conditioning through the HP ground connector or with the
R APU (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
R (2) Do a leak check of the sense line connectors (2) and (3) at the back
R up solenoid (5).
R NOTE : Leaks are not permitted.____
R (3) After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-33-
R 21-618-001) (Ref. TASK 12-33-21-618-001).
R (4) Do the operational test of the pack temperature control system
R (Ref. TASK 21-61-00-710-001).
R 5. Close-up________
R Subtask 21-61-41-410-054
R A. Close Access
R (1) Make sure that the work area is clean and clear of tool(s) and other
R items.
R (2) Install the access panel(s) (Ref. TASK 53-35-13-400-002).
R (a) FOR 25HH
R - 191KB.
R (b) FOR 40HH
R - 192KB.
R Subtask 21-61-41-862-052
R B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-
R 002).
ACTUATOR - AIR INLET FLAP (8HH,28HH) - REMOVAL/INSTALLATION
___________________________________________________________
TASK 21-61-51-000-001
Removal of the Air-Inlet Flap Actuator 8HH and 28HH
WARNING : MAKE SURE THAT AIR IS NOT SUPPLIED TO THE AIR CONDITIONING SYSTEM
_______
FROM THE MAIN ENGINE, THE APU OR A GROUND SOURCE.
HOT COMPRESSED AIR CAN CAUSE INJURY TO PERSONNEL.
NOTE : The procedure is the same for the air-inlet flap actuator 8HH and 28HH.
____
1.
Reason for the Job
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