TM 5-5420-280-10
0039 00
LPU Engine Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
CAUTION
Never use starting fluid (ether) to assist starting LPU.
Failure to comply will result in damage to engine.
NOTE
If starting problem cannot be resolved following the
LPU engine troubleshooting procedures in this work
package, refer to WP 0026 00 for use of CBT back-up
power. Notify field maintenance after
completing mission.
1. ENGINE CRANKS BUT DOES NOT START, OR STARTS BUT NOT IMMEDIATELY
Step 1. Check to see speed adjustment lever is left in STOP or IDLE
position.
Move engine speed adjustment lever to START position.
Step 2. Check for empty fuel tank.
Fill fuel tank.
END OF TESTING
2. ENGINE DOES NOT START AT LOW TEMPERATURES
Step 1. Check that engine glow plugs were operated prior to cranking.
Operate engine glow plugs.
Step 2. Faulty engine glow plugs.
Notify field maintenance to check glow plugs.
Step 3. Battery voltage too low.
a. Connect CBT and charge batteries as necessary.
Refer to WP 0027 00.
b. Notify field maintenance to test batteries.
END OF TESTING
3. ENGINE STARTER MOTOR DOES NOT OPERATE OR ENGINE DOES NOT
TURN OVER
Step 1. Low battery voltage.
a. Connect CBT and charge battery as necessary.
Refer to WP 0027 00.
b. Notify field maintenance to test batteries.
