TM 9-4120-378-14
5.17 EXPANSION VALVES. - continued
Remarks
Location/Item
Action
Quench
Expansion
Valve
Installation
a. With dry nitrogen flowing through refrigerant sys- See paragraphs 5.5 and 5.6.
tern, braze valve to tubing.
Take care to avoid kinking capillary
tube.
b. Coil excess tubing.
c. Insert approximately 1.0 ounces (28.349 gins) of
thermal mastic bulb in well.
d. Press sensing bulb (4) into well and work back and
forth to distribute mastic thoroughly and until capil-
lary end is approximately 1.0 inch (2.54 cm) beyond
open end of well.
e. Install two valve mounting brackets (8) to housing
using two screws (5), two spacers (6) and two lock-
nuts (7).
See paragraph 5.25.
f. Replace dehydrator.
g. Leak test refrigeration system.
See paragraph 5.7.
h. Evacuate refrigeration system.
See paragraph 5.8.
i.
Charge refrigeration system.
See paragraph 5.9.
Install rear top cover.
See paragraph 4.17.
j.
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