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Page Title:
SOLENOID VALVES-TEST/REPAIR - continued |
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 TM 5-4120-386-14
4-37. SOLENOID VALVES-TEST/REPAIR.
REMARKS
ACTION
LOCATION/ITEM
Test-Continued
If continuity checks are satisfactory,
e.
apply 24 volts dc from an external
power supply across contacts A and
B in solenoid valve connector, and
listen for a sharp click when the
valve changes position. If a click
is not heard, internal valve problems
are indicated and entire valve should
be replaced. Notify your supervisor.
Repair
Do not attempt any disassembly of
solenoid valve other than coil
removal with a refrigerant charge
in the system. Refrigerant will be
sprayed out dangerously if screws
that attach tube and plunger assemb-
ly to valve body are loosened.
Remove nut (1) that attaches coil
a.
(3) to valve body (4), and remove
coil and connector assembly.
b. Unsolder coil leads from pins
in the connector, and remove
connector (5).
4-104
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