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TM 5-4210-220-12
Table 4-2 UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4. Check wire between breaker and sender.
Replace wire.
Step 5 Check circuit breaker.
Replace circuit breaker.
9c ANY MOTOR FAILS TO OPERATE
Step 1. Check voltage on wires to motor.
Replace motor if wires at 12 Vdc.
Step 2. Check wire between switch or relay and motor.
Replace wire if voltage on switch end but none at motor.
Step 3. Check relay.
Replace relay.
Step 4. Check wire between breaker and switch/relay.
Replace wire if voltage on breaker but none at switch/relay.
Step 5. Check breaker.
Replace breaker if voltage in bus bar but none at breaker output.
10a STEERING HARD IN ONE OR BOTH DIRECTIONS.
Step 1 Check ambient air temperature.
Run engine for few minutes. Steering will be stiff at very low temperatures.
Step 2. Check oil level.
a. Fill reservoir as required, (see LO 5-4210-220-12).
b. Check for leaks.
Step 3. Check oil viscosity and/or oil cleanliness.
Drain system and refill with correct oil, (see LO 5-4210-220-12).
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