R **ON A/C 001-049, 051-099, 101-149, 201-299, 301-399,
Subtask 21-52-21-420-050
B. Installation of the Air Cycle Machine R
(Ref. Fig. 401/TASK 21-52-21-991-001) R
NOTE : Turn the sleeves (7) and (16) when you move them or when you
____ install them. This will help to prevent damage to the packings (6) and (15).
(1)
Remove the blanking caps from the disconnected line ends.
(2)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(3)
Make sure that the anti-ice valve sense-lines are in a good condition (Ref. TASK 21-52-00-200-003).
(4)
Clean the component interface and/or the adjacent area.
(5)
Apply lubricant:
CAUTION : USE ONLY THE SPECIFIED LUBRICANT TO LUBRICATE THE O-RINGS
_______ AND THE PACKINGS. OTHER LUBRICANTS CAN CAUSE SMOKE OR A SMELL IN THE CABIN WHEN THEY BECOME HOT.
(a) Apply a small quantity of:
-COMMON GREASE (Material No. 04-007) or
-LUBRICANTS (Material No. 06-007) to the new packing (6), packing (15) and packing (19) before you install them.
NOTE : The material 04-007 is a molybdenum disulfide powder.
____ Before you can apply it you must first make it imto a paste. To do this you must mix the powder with pure water or white spirit.
NOTE : The material 06-007 is applied dry.
____
(6) Apply a small quantity of COMMON GREASE (Material No. 04-014A) to the screw connector of the sense line (11).
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(7)
Make sure that the lip seal (18) is correctly installed and that it is in a good condition. If necessary replace the lip seal (18) (Ref. CMM 215207).
(8)
Put the sleeve (9) in position on the air cycle machine and install the clamp (10).
NOTE : Make sure that when you look in a forward direction the screw
____
of the clamp (9) is in the 5 o'clock position.
(9) TORQUE the clamp (10) to between 0.08 and 0.12 m.daN (7.07 and 10.61 lbf.in).
(10)
Put the packing (19) in position.
(11)
Put the packings (6) in position on the air-cycle machine flange and on the pipe assembly flange (2).
(12)
Put the sleeve (7) in position on the pipe assembly flange (2).
(13)
Put the packings (15) in position on the air-cycle machine flange
(12) and on the condensor flange (17).
(14)
Put the sleeve (16) in position on the air-cycle machine flange (12).
(15)
Install the air cycle machine WARNING : SUPPORT THE UNIT/ASSEMBLY OR IT WILL FALL AND BECOME
_______ DAMAGED OR INJURE PERSONNEL. THE UNIT/ASSEMBLY IS HEAVY.
(a) Carefully put the air cycle machine in position on the reheater flange (1), the condensor flange (17) and in the lip seal (18).
NOTE : The air cycle machine weighs aprx. 22 kg (48 lb).
____
NOTE : You must take care not to damage or distort the lip seal
____
(18) when you put the air cycle machine in position.
(b)
Put the support rods (74), (75), (78) and (79) in position.
(c)
Install the bushings (22), (where fitted the washers (23)), the bolts (24), the washers (21) and the nuts (20).
(16) Get access to the fan plenum outlet (30) and with your fingers feel around the lip seal (18) to make sure that it is correctly installed.
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(17)
Make sure that the packing (19) is in position and install the clamp
(3).
(18)
Make sure that the clamp (3) is in the correct position.
(19)
TORQUE the clamp (3) to between 0.51 and 0.56 m.daN (45.13 and 49.55 lbf.in).
(20)
Move the sleeve (16) in position on the condensor flange (17). NOTE : Make sure that the sleeve (16) covers both the air-cycle
____
machine flange (12) and the condensor flange (17).
(21)
Put the half clamps (14) in position and install the clamp (13).
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