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 (b) Carefully remove the air conditioning pack from the aircraft.
 NOTE : The air conditioning pack weighs aprx. 79 kg (180 lb).____ You must take care not to bend or twist the air conditioning pack as this can cause damage to the component. The air conditioning pack must be put in the correct support when you remove it from the aircraft.
R  (4) Put blanking plugs on the disconnected line ends. 
Subtask 21-52-41-020-053
 D. Removal of the Attached Components 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 
R  (Ref. Fig. 402/TASK 21-52-41-991-002) 
R  **ON A/C 401-499, 
R  (Ref. Fig. 402A/TASK 21-52-41-991-002-B) 
R  **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399, 
R  (Ref. Fig. 405/TASK 21-52-41-991-005) 
R  **ON A/C 401-499, 
R  (Ref. Fig. 405A/TASK 21-52-41-991-005-A) 
R  **ON A/C ALL
 (1) Remove the duct (33) from the sleeve (32).
 (2) Remove the sleeve (31) from the aircraft and the sleeve (32) from the heat exchanger unit (4). 

R 1EFF : ALL 1 21-52-41Page 417 1 1 Aug 01/05 1 1 1CES 1

R Electrical and Sense Line Connectors
R Figure 403B/TASK 21-52-41-991-003-C12 (SHEET 1)

R 1EFF : 401-499, 1 21-52-41Page 418 1 1 Aug 01/05 1 1 1CES 1

R Electrical and Sense Line Connectors
R Figure 403B/TASK 21-52-41-991-003-C22 (SHEET 2)

R 1EFF : 401-499, 1 21-52-41Page 419 1 1 Aug 01/05 1 1 1CES 1

 Tie Rod and Bonding Connections Figure 404/TASK 21-52-41-991-004- 12 (SHEET 1)
 1EFF : 1 1R 1CES  ALL  1 11 1 21-52-41 Page 420 Aug 01/05

 

 Tie Rod and Bonding Connections Figure 404/TASK 21-52-41-991-004- 22 (SHEET 2) 
R 1EFF : 1 1 1CES  ALL  1 111 21-52-41 Page 421 Aug 01/05

 

 Attached Components
 Figure 405/TASK 21-52-41-991-005

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-52-41Page 422 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1

 Attached Components
 Figure 405A/TASK 21-52-41-991-005-A 
R 1EFF :  401-499,  1  21-52-41 Page 423 
1  1  Aug 01/05
 1  1
 1CES  1

 

 (3)
 For the LEFT air conditioning pack remove and discard the seals (42) from the sleeve (31).

 (4)
 For the RIGHT air conditioning pack remove and discard the seals

 (142) from the sleeve (31).

 (5)
 For the LEFT air conditioning pack remove and discard the seals (39) and (40), (alternative (41)), from the sleeve (32).

 (6)
 For the RIGHT air conditioning pack remove and discard the seals

 (139) and (140), (alternative (141)), from the sleeve (32).

 (7)
 Put blanking plugs on the disconnected line ends.

 (8)
 Remove the nut (126), the washer (125), the bonding strap (88) and the screw (123).

 (9)
 Remove the nuts (129), the washers (128), the screws (121), the seals

 (122) and (124) and the inlet plenum (127).
 (10)
 Put a protective cover on the cooling elements of the air conditioning pack (4).

 (11)
 If installed: Remove the nut (130), the washer (131), the bonding strap (87) and the screw (132).

 (12) Put blanking plugs on the disconnected line ends. R
 Subtask 21-52-41-020-054
 E. Removal of the Attachment Components
 (Ref. Fig. 406/TASK 21-52-41-991-006)

 (1) Remove the nuts (99), the washers (100), the bolts (96), if fitted the washers (97), the bushings (98) and the support rods (71), (72a) and (72b), (73), (74), (75), (77), (78), (79), (80), (81), (82) and (83).
 NOTE : Identify the support rods for correct position in the
____
 installation procedure.

 (2)
 Remove the nut (2), the washer (1) the bolt (3) and disconnect the support rods (72a) and (72b).

 (3)
 Do the inspection of the components for in-service wear (Ref. TASK 21-52-41-200-001).

 

 Attachment Components Figure 406/TASK 21-52-41-991-006
 1EFF : 1 1R 1CES  ALL  1 11 1 21-52-41 Page 425 Feb 01/05

 

 TASK 21-52-41-400-001 Installation of the Air Conditioning Pack 10HM (11HM) 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 conditioning pack 10HM (11HM).
____
　
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