S 034-010
(3)
Disconnect the wires from the limit switch for the ram-air exit door.
S 034-009
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S 034-056
(4) Remove the remaining sealant from the wires and the limit switch.
S 034-038
(5) Remove the screw (31) and clip (32) from the support bracket.
S 034-011
(6) Remove the retainers (5) from the duct joints of the heat exchanger
(4 locations).
S 034-039
(7) Pull the sleeves (4) away from the duct joints.
S 034-013
(8) Remove the bolts (9, 11, 13, 26) and the washers (10, 12, 14, 27)
from the top flange of the heat exchanger.
NOTE:____ You can get access through the access door in the ram-air
duct.
S 034-014
(9)
Disconnect the water aspirator fitting (22) from the heat exchanger (21).
S 034-054
(10)
Disconnect the water drain lines from the heat exchanger and the louver assembly.
S 484-042
(11)
Install the lift tool to hold the weight of the heat exchanger.
S 034-033
(12)
Remove the bolts (16, 28), nuts (17, 29), and washers (18, 30) from the support bracket.
S 024-016
(13)
Lower the heat exchanger from the airplane.
S 034-044
(14)
Remove the gasket (24) and filler (15) from the top of the heat exchanger (21).
S 034-034
(15)
Remove the seals (3) and the sleeves (4) from the duct joints.
S 434-035
(16)
Put a cover on the duct openings.
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S 034-043
(17) If it is necessary, remove the heat exchanger (21) from the ram-air exit door (20).
(a)
Remove the heat exchanger (21) from the ram-air exit door (20).
(b)
Remove the gasket (23) and filler (25) that were between the heat exchanger (21) and the ram-air exit door (20).
S 214-037
(18) Examine the louvers of the ram-air exit door.
(a)
If the outboard edge of a louver moves more than 0.20 inches
(5.1 millimeters), then replace the ram-air exit door.
(b)
If a louver has a crack, then replace the ram-air exit door.
(c)
To replace the ram-air exit door, you must remove the actuator (Ref 21-62-05/401) and the limit switch (Ref 21-62-12/401) for the exit door.
TASK 21-51-03-404-021
3. Heat Exchanger Installation (Fig. 401)___________________________
A. Special Tools and Equipment
(1)
ME65B40000-1 Heat Exchanger Lifting Tool
(2)
2ME65B40006 Heat Exchanger Lifting Tool
(3)
Bonding Meter
B. Consumable Materials
(1)
A00247 Sealant, Pressure and Enviromental - Chromate Type - BMS5-95
(2)
B00192 Solvent, BMS 3-2, type 1
(3)
G00378 Alodine
(4)
G00033 Lint-free cheesecloth
C. References
(1)
AMM 20-11-14/701, Metal Surfaces - Cleaning/Painting
(2)
AMM 20-22-01/601, Electrical Bonding
(3)
AMM 21-00-00/201, Air Conditioning
(4)
AMM 21-62-05/401, Ram Air Exit Door Actuator
(5)
AMM 21-62-12/401, Ram Air Exit Door Limit Switch
(6)
AIPC 21-51-03 Fig. 2
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