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TM5-4120-377-14
5-18 SOLENOID VALVES (L1 AND I2) (FOR KECO MODEL F18T4-2S ONLY)
For testing and replacement of coils, see paragraph 5-17.
Preliminary procedure: Remove junction box. (See para 4-46.)
a. Removal
(1) Check to be sure power has been disconnected.
(2) Discharge the refrigeration system in accordance with paragraph 5-6.
Figure 5-15.
Solenoid Valves (L1 and L2) (KECO Model F18T4-2S)
(3) Disconnect wiring harness connector (P6) from (J6) on solenoid valve (L2) or connector (P5) from
connector (J5) on solenoid valve (L1).
(4) Remove nut that attaches coil to valve body.
(5) Remove coil assembly and data plate.
(6) Remove two screws that attach tube and plunger assembly to valve body. Remove tube and plunger
assembly, and all other removable internal components from valve body.
(7) Check valve body for visible damage. Normally valve body replacement is unnecessary. If valve body
is in good condition, skip steps (8) through (10).
(8) Using screwdriver, remove two screws and lock washers that attach base of valve body to casing side
panel.
(9) Purge the system with nitrogen and debraze the tube connections. (See para 5-7 and 5-8.)
(10) Remove the valve body.
Change 1
5-31
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