R 1EFF : ALL 1 21-52-21Page 424 1 1 Aug 01/05 1 1 1CES 1
**ON A/C ALL
Subtask 21-52-21-710-051
D. Test
(1)
Do the pre-conditioning through The HP ground connector (Ref. TASK 12-33-21-618-001) or with the APU (Ref. TASK 12-33-21-618-001).
(2)
Do a leak check of the air cycle machine. NOTE : Minimum leakage is permitted. After the pack operates some
____ minutes, the leakage of air will reduce because the seals have their correct operating temperature.
(3)
Do a leak check of the sense line connections.
NOTE : Leaks are not permitted.
____
(4)
After approx. 15 minutes stop the pre-conditioning (Ref. TASK 12-33-21-618-001) (Ref. TASK 12-33-21-618-001).
(5)
Do the operational test of the cockpit and cabin temperature control (Ref. TASK 21-63-00-710-004).
5. Close-up
________ Subtask 21-52-21-410-050
A. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the access panel (Ref. TASK 53-35-13-400-002).
FOR 10HM1
191KB.
FOR 11HM1
192KB.
(3) Remove the warning notice(s). Subtask 21-52-21-862-050
B. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
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TASK 21-52-21-000-002
Removal of the Compressor Inlet Gasket
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.
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 WARNING NOTICE
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
21-52-23-000-002 Removal of the Pipe Assembly between the Anti-Ice Valve (if installed), the Bypass Valve and the Air Cycle Machine
21-61-53-000-001 Removal of the Bypass Valve 10HH (30HH) 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 53-35-13-000-002 Removal of the Quick-Release Access Panels from the Belly Fairing Structure
3. Job Set-up
__________
Subtask 21-52-21-861-053
A. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
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Subtask 21-52-21-865-055
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM1
R **ON A/C 401-499,
R 49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 52HH D08
R 122VU AIR COND/PACK TEMP/CTL SYS1/1/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/1/28VDC 1HH 3HH X22X21
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 4HH Y19
R R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC **ON A/C 106-149, 303-399, 2HH Y18
R 122VU 4HH Y19
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 1/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 1/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 1/CHAN B/115VAC **ON A/C ALL 49HH 51HH 50HH X22 X21Y18
FOR 11HM1
R -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------**ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
122VU AIR COND/PACK TEMP/CTL SYS1/2/115VAC 122VU AIR COND/PACK TEMP/CTL SYS1/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/28VDC 122VU AIR COND/PACK TEMP CTL SYS2/2/115VAC 21HH 23HH 24HH 22HH W22W21Y21Y20
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