TM 9-4110-255-14
5-38. EXPANSION VALVE REPLACEMENT . - Continued
b. Installation.
(1) Install expansion valve (10) and tighten three flare nuts (9).
(2) Install sensing bulb (7) and secure with two new tie down straps (8).
(3) Install insulation (6) and secure with insulation tape as necessary.
(4) Slip clamp (5) over expansion valve body (10).
(5) Secure clamp (5) to expansion valve strap (2) with screw (4) and new self locking nut (3).
(6) Install expansion valve strap (2) and two screws (1)
.
NOTE
FOLLOW-ON MAINTENANCE:
Replace dehydrator (para 5-17).
Leak check (para 5-13), evacuate (para 5-14), and charge (para 5-15) the refrigeration system.
Install access panel (para 4-16).
5-39. EVAPORATOR COIL REPLACEMENT .
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Materials/Parts:
Equipment Conditions:
Lock Washers (10)
Evaporator cover panel removed (para 4-15).
1, Appendix G
Expansion valve removed (para 5-38).
Insulation Tape
Temperature switch removed (para 4-36).
6, Appendix E
Evaporator fan removed (para 4-42).
a. Removal.
(1) Loosen two set screws (1) each on evaporator flange bearing, condenser flange bearing, and fan clutch (2)
collars.
(2) Slide fan drive shaft (3) away from evaporator coil (4) just enough to allow evaporator shroud (5) to be
removed with the coil.
(3) Remove insulation (6).
(4) Remove two clamps (7).
(5) Purge (para 5-11) and de-braze (para 5-12) three fittings (8).
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