TM 9-4120-411-14
5.13 VOLUTE ASSEMBLY REPLACEMENT.
THIS TASK COVERS:
a. Removal
b. Installation
a. Removal.
b. Installation.
5.14 EXPANSION VALVE REPLACEMENT.
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
Tools
Materials/Parts
Refrigeration Unit Service Tool Kit
Lock Washer
Insulation Tape
NOTE
Two expansion valves are used in the FDECU. The following procedures apply to
either expansion valve.
WARNING
Rotating parts and lethal voltage levels are used in operating the FDECU. Be sure
power source is disconnected. Injury or death can occur if connected to power
source.
(1) Shutdown the FDECU per paragraph 2.4 and disconnect it from power source.
WARNING
The FDECU cover is heavy. Be sure the cover retaining rod is in place and
properly secured with hair pin cotter. Injury can occur if cover drops.
(2)
Raise and secure cover to access expansion valve (1).
(3)
(4)
Remove insulation from tubing as necessary.
(5)
Remove nut (2), lock washer (3), screw (4), and clamp (5). Discard lock washer.
(6)
Loosen clamp (6) then slide sensing bulb (7) out.
(7)
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