NOTE : Hold the hexagon part of the retaining cables (75), (90) and
____ (96) to prevent twisting of the cables when you remove the nuts (74).
 (7)
 Disconnect the retaining cables (75), (90) and (96) from the flanges (4), (10) and (17).

 (8)
 Remove the sleeve (88).

 (9)
 Remove and discard the seals (87).

 (10)
 Move the sleeves (72) and (79) away from the heat exchanger unit (7).

 (11)
 Remove the heat exchanger unit WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME

_______ DAMAGED OR INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY.
 (a) Hold the heat exchanger unit (7) and remove the nuts (54), the washers (55), the bolts (56), the bushes (58) and (where fitted) the washers (57).

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location Figure 401/TASK 21-52-24-991-001- 14 (SHEET 1)
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 Heat Exchanger Unit 10HM4 (11HM4) - Component Location Figure 401/TASK 21-52-24-991-001- 24 (SHEET 2)
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 21-52-24Page 407 1301-399, 1Aug 01/05 1 1 1CES 1

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location Figure 401/TASK 21-52-24-991-001- 34 (SHEET 3)
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 21-52-24Page 408 1301-399, 1Aug 01/05 1 1 1CES 1

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location Figure 401/TASK 21-52-24-991-001- 44 (SHEET 4)
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 21-52-24Page 409 1301-399, 1Aug 01/05 1 1 1CES 1

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location R Figure 401A/TASK 21-52-24-991-001-A14 (SHEET 1)
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 Heat Exchanger Unit 10HM4 (11HM4) - Component Location R Figure 401A/TASK 21-52-24-991-001-A24 (SHEET 2)
R 1EFF : 151-199, 401-499, 1 21-52-24Page 411 1 1 Aug 01/05 1 1 1CES 1

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location R Figure 401A/TASK 21-52-24-991-001-A34 (SHEET 3)
R 1EFF : 151-199, 401-499, 1 21-52-24Page 412 1 1 Aug 01/05 1 1 1CES 1

 Heat Exchanger Unit 10HM4 (11HM4) - Component Location R Figure 401A/TASK 21-52-24-991-001-A44 (SHEET 4)
R 1EFF : 151-199, 401-499, 1 21-52-24Page 413 1 1 Aug 01/05 1 1 1CES 1

 (b)
 Remove the nut (35), the washer (36), the bolt (40), the bush

 (38) and (where fitted) the washer (39).

 (c)
 Disconnect the support rods (83), (82) and (80) and carefully remove the heat exchanger unit (7).

 NOTE : The heat exchanger unit weighs aprx. 40 kg. (80 lb).
____
 (12)
 Remove the sleeve (16) together with the duct (15).

 (13)
 Remove the duct (15) from the sleeve (16).

 (14)
 Remove the sleeves (72) and (79) from the flange (70) and the pipe assembly (91).

 (15)
 Remove and discard the seals (71), (77), (84 (184)) or, where fitted the seals (85 (185)) and (86 (186)) from the sleeves (16), (72), and (79).

 (16)
 Remove and discard the nuts (74) and the washers (73) from the retaining cables (92).

 NOTE : Hold the hexagon part of the retaining cables (92) to prevent
____ twisting of the cables when you remove the nuts (74).
 (17)
 Disconnect the retaining cables (92) from the flange (76) and remove the pipe assembly (91).

 (18)
 Remove the sleeve (78) and remove and discard the seals (77).

 (19)
 Put blanking plugs on the disconnected line ends.

 (20)
 Remove the nut (45), the washer (44), the bonding strap (41) and the screw (42).

 (21)
 When installed remove the nut (60), the washer (59), the bonding strap (34) and the screw (61).

 (22)
 Remove the inlet plenum (46):

 (a) For the left heat exchanger unit (10HM4), 1 Remove the nuts (50), the washers (49), the screws (48), the
_ inlet plenum (46) and the seals (43) and (47).
R 1EFF : ALL 1 21-52-24Page 414 1 1 Aug 01/05 1 1 1CES 1

 (b) For the right heat exchanger unit (11HM4), 1 Remove the nuts (50), the washers (49), the screws (48), the
_ inlet plenum (46) and the seals (143) and (147).
 (23) Put a protective cover over the cooling elements of the heat exchanger unit (7).
 Subtask 21-52-24-020-053
 B. Removal of the Attachment Components
 (Ref. Fig. 402/TASK 21-52-24-991-003)

 (1) Remove the nuts (56), the washers (55), the bolts (56), if fitted the washers (57), the bushings (58) and the support rods (80), (82) and (83).
　
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