A. Aircraft Maintenance Configuration
(1) Make sure that:
(a)
The electrical circuits are energized (Ref. TASK 24-41-00-861-002)
(b)
The applicable access panel is removed (Ref. TASK 53-35-13-000-002). 191KB or 192KB
(c)
The pipe assembly between the compressor inlet duct and the primary heat exchanger removed is.
1EFF : ALL 1 21-52-21Page 432 1 1 Feb 01/05R 1 1 1CES 1
(d) The pipe assembly between the anti ice valve, bypass valve and the air cycle machine removed is (Ref. TASK 21-52-23-000-002).
(e) The applicable bypass valve 10HH (30HH) is removed (Ref. TASK 21-61-53-000-001)
(2) On the panel 30VU make sure that:
(a) The APU BLEED P/BSW is in the OFF position (the ON legend is off).
(b) The ENGINE 1 + 2 P/BSW are in the OFF position (the OFF legends are on).
(c) The warning notice, not to operate these P/BSW is in position.
(3) On the HP ground connector, the warning notice not to supply the ground air is in position.
Subtask 21-52-21-865-056
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 10HM1
R **ON A/C 401-499,
49VU AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC 52HH D08
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
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 122VU AIR COND/PACK TEMP CTL SYS2/1/28VDC 4HH Y19
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION
-------------------------------------------------------------------------------
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
R 122VU AIR COND/PACK TEMP CTL SYS2/1/115VAC 2HH Y18
R **ON A/C 106-149, 303-399,
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 49HH 51HH 50HH X22 X21Y18
**ON A/C ALL
FOR 11HM1
R **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
R **ON A/C 401-499,
R R 122VU AIR COND/TEMP CTL SYS 2/CHAN A/115VAC 122VU AIR COND/TEMP CTL SYS 2/CHAN A/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/28VDC 122VU AIR COND/TEMP CTL SYS 2/CHAN B/115VAC 53HH 55HH 56HH 54HH W22W21 Y21Y20
**ON A/C ALL
4. Procedure
_________ Subtask 21-52-21-420-053
A. Installation of the Compressor Inlet Gasket
(Ref. Fig. 403/TASK 21-52-21-991-004)
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Put the new GASKET (2) on the applicable side of the inlet duct (3), between the two shoulders.
NOTE : The holes must align exactly.
____
(4)
Install the inlet duct (3) on the compressor casing (1) and make sure that the holes are aligned.
(5)
Install washers (4) and screws (5).
(6)
Tighten screws (5). NOTE : Tighten the screws in a sequence that goes from one screw to
____ the screw diagonally opposite. Do not tighten adjacent screws.
(7)
TORQUE screws (5) to between 0.2 and 0.3 m.daN (17.69 and 26.54 lbf.in) in a sequence that goes from one screw to the screw diagonally opposite. Do not torque adjacent screws.
(8)
Install the applicable bypass valve (Ref. TASK 21-61-53-400-001).
(9)
Install the applicable pipe assembly (Ref. TASK 21-52-23-400-001), do not install the access panel at this time.
(10) Install the pipe assembly between the anti ice valve, bypass valve and the air cycle machine (Ref. TASK 21-52-23-400-002)
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