TM 9-4120-371-14
(c) When the proper setting is obtained, install the seal cap.
**(9) If the superheat is not within the limits shown in step 7 above, replace the valve.
(10) Turn unit OFF.
(11) Remove thermometer.
(12) Cover the sensing bulb and suction line with insulation tubing that was removed in step (2) above.
Secure tubing in place using tape, item 11, Appendix E.
(13) Close service valves on unit.
(14) Remove gages or service manifold from service valves.
(15) Install hose connection protective caps.
(16) Using screwdriver, secure service valve cover with four screws and flat washers.
c. Removal
(1) Discharge the refrigerant system per paragraph 5-6.
(2) Unwrap insulation tubing from suction line so that sensing bulb is exposed. Note location and
position of bulb for reinstallation. Loosen screws and nuts in clamps. Pull bulb out of clamps.
*(3) Using wrench, remove two cap screws, lock washers, flat washers, and spacers that attach valve
body to bracket and power assembly.
`*(4) Using screwdriver, remove screw, lock washer, flat washer, nut, and clamp that secures valve to
bracket.
*(5) Carefully remove the power assembly, cage assembly, and gaskets.
NOTE
If valve body flange is not damaged, do not remove (debraze) it from the system.
*(6) If valve body flange is to be removed, purge the system with nitrogen and debraze the two tubes.
(See para 5-7 and 5-6.)
d. Installation
*(1) If valve body flange was removed, purge the system with nitrogen and braze the two tubing joints.
(See para 5-7 and 5-6.)
*(3) See figure 5-16 for valve component arrangement.
*(4) Place cap screws, lock washers, flat washers, and spacers through bracket and valve body flange.
**(5) Using screw, lock washer, flat washer, clamp, and nut secure valve to bracket.
*(6) Be sure that valve components are properly assembled and alined. Secure power assembly to
body flange,
*Effective for Keco Model F18T-2S, and A.R.E. Model CVP-20-5/6-08.
**Effective for Keco Model F18T-2SA.
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