(c)
Put the support rods (80), (82) and (83) in position at the heat exchanger unit (7).
(d)
Install the bushings (58), (if required the washers (57)), the bolts (56), the washers (55) and the nuts (54).
(2) Inspection of the Air Cycle Machine to Lip Seal Installation NOTE : This work step is not applicable to the plenum chamber P/N
____
1816A0000-01.
(a) Get access to the fan plenum outlet and with your fingers feel around the lip seal (11) to make sure that it is correctly installed.
(3)
Put the duct (15) in position and install the clamp (14).
(4)
TORQUE the clamp (14) to between 0.4 and 0.5 m.daN (35.39 and 44.24 lbf.in).
(5)
Move the sleeve (16) so that the "Z" dimensions are approximately equal.
(6)
Move the sleeve (3) in position on the heat exchanger unit (7) until you get the 4mm. Ref. dimension.
(7)
Put the clamp (2) in position and move it until you get the 4mm. Ref. dimension.
(8)
Tighten the clamp (2).
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(9) Do a check of the "X" and the "Y" dimensions at the sleeves (16) and (3).
(a)
For the "X" dimension,
-measure the maximum and the minimum "X" dimensions around the cicumference of the sleeve (16),
-the difference between the maximum and the minimum "X" dimensions must not be more than 1.7mm.
(b)
For the "Y" dimension,
-measure the maximum and the minimum "Y" dimensions around the circumference of the sleeve (3),
-the difference between the maximum and the minimum "Y" dimensions must not be more than 1.2mm.
(c)
You can get the tolerance of 1.7mm and 1.2mm if you adjust the support rod/s (1) and/or (83).
NOTE : Adjustment of the support rod (1) will give you a vertical
____ difference. Adjustment of the support rod (83) will give you a lateral difference. You must only adjust the support rods (1) and (83). Safety the support rod/s after you adjust them.
(10)
Put the sleeve (13) in position on the heat exchanger unit (7) and install the clamp (12).
(11)
TORQUE the clamp (12) to between 0.08 and 0.12 m.daN (7.07 and 10.61 lbf.in).
(12)
Put the bonding strap (41) in position and install the washer (32), the screw (31) and the nut (33) (Ref. TASK 20-28-00-912-004).
(13)
Put the bellows (6) in position and install the clamp (5).
(14)
Move the sleeve (72) in position on the flange (17).
(15)
Make sure that the retaining cables (75) are in line with the holes in the flange (17).
(16)
Put the retaining cables (75) in position in the flange (17) and install the new washers (73) and the new nuts (74).
NOTE : Hold the hexagon part of the retaining cables (75) to prevent
____ twisting of the cables when you install the nuts (74).
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(17)
Make sure that the retaining cables (90) are in line with the holes in the flange (10).
(18)
Put the retaining cables (90) in position in the flange (10) and install the new washers (73) and the new nuts (74).
NOTE : Hold the hexagon part of the retaining cables (90) to prevent
____ twisting of the cables when you install the nuts (74).
(19) TORQUE the nuts (74) to between 0.85 and 1.0 m.daN (75.22 and 88.49 lbf.in).
NOTE : Hold the hexagon part of the retaining cables (75) and (90) to
____ prevent twisting of the cables when you torque the nuts (74). Make sure that there is no tension in the retaining cables
(75) and (90).
This will give a safe and flexible connection.
(20)
Wipe clean the excess COMMON GREASE (Material No. 04-012) from the retaining cables (75), (90) and (92).
(21)
Install the pipe assembly (Ref. TASK 21-52-23-400-001). NOTE : Do not install the access panel at this time.
____
(22)
Install the ram air outlet (Ref. TASK 21-61-52-400-003). NOTE : Do not install the access panel at this time.
____
(23)
Make sure that the work area is clean and clear of tool(s) and other items.
