TM 9-4120-388-14
a. Inspection b. Testing and Superheat Adjustment
This task covers:
d. Installation
c. Removal
INITIAL SETUP:
Equipment Condition
Rear panel removed (4-31).
a. Inspection.
(1) Inspect for evidence of leaks, kinked, or otherwise damaged capillary line, and loose or missing mounting
hardware.
(2) Be sure that thermal bulb is securely clamped to the suction line.
b. Testing and superheat adjustment. The expansion valve as supplied with the unit preset at the factory.
(1) Perform a refrigerant pressure check on unit in accordance with paragraph 5-13. Leave gages or service
manifold attached.
(2) Remove the suction line insulation from the area of the sensing bulb. Observe location and position of bulb
for reinstallation.
(3) Loosen the screws and nuts in the bulb straps that attach the sensing bulb to the suction line, and pull the
bulb out of the straps.
5-56