TM 10-3510-222-24
Table 2-3. UNIT WASHER TROUBLESHOOTING PROCEDURES - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2.
WATER WILL NOT DRAIN FROM WASHER - continued.
Step 2. Check for inoperative drain valve.
a.
Operate manual override on drain solenoid and observe valve operation.
b.
Check that air supply pressure is correct (90 to 100 psi).
c.
Replace or repair drain valve. Refer to paragraph 2-26, Drain Pipe.
d.
If problem persists, notify Direct Support.
3.
WASHER FILL LEVEL TOO LOW (below LEVEL LOW/1 switch, number 2)
Step 1. Check for obstruction in float assembly tube.
Clean as required at tee.
Step 2. Check for leaks through drain valve during filling.
Clean clogged drain valve.
Step 3. Check gage on washer air tank for low air pressure (90 to 100 psi).
a.
Check drain valve for leaks during filling,
b.
If air supply is 90 to 100 psi, replace drain valve. Refer to paragraph 2-26, Drain Pipe.
c.
If problem persists, notify Direct Support.
4.
WASHER FILL LEVEL TOO HIGH/WATER OUT OF OVERFLOW (LEVEL HIGH/2 switch number 13 positioned
above highest setting).
Step 1. Check for obstruction in float assembly tube.
Clean as required at tee.
Step 2. Refer to malfunction 2 and perform step 2.
Step 3. Check for malfunctioning hot and cold water ball valves. Operate manual override on control solenoids and
observe valve operation. Insure valve air supply is adequate (90 to 100 psi).
a.
If air supply is adequate, replace defective hot and cold water ball valve. Refer to paragraph 2-46,
Piping.
b. If problem persists, notify direct support.
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