TM 5-4520-253-13
l N S P E C T / T E S T / R E M O V E / l N S T A L L
S O L E N O I D
( C O N T )
2.
Check solenoid wires (3 and 4) for cuts or breaks in insulation and loose or damaged male coupler
terminals (5 and 6). Replace defective terminals.
If wire is damaged close to terminal end, small
amount of wire can be removed. Wires must still be long enough to reach terminals of green and
blue wires of PC board assembly wiring (7). Otherwise, replace solenoid (1).
TESTING:
1.
2.
3.
Disconnect wires (3 and 4
from PC board assembly wiring (7). Tag al wires.
Connect wires (3 and 4) to a 24 V dc power source.
Alternately make and break the circuit by touching and removing one of wires (3 or 4) from the
power source.
If solenoid (1 ) is good, a clicking sound will be heard when the valve opens or
closes. If no sound is heard, solenoid is defective. Replace with good solenoid.
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