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ENGINE CONTINUED
ENGINE CONTINUED

Operator Manual For Motorized Road Grader Model 120M
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0011
TM 5-3805-293-10
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
0.
ENGINE CONTINUED
4. ENGINE DOES NOT CRANK WHEN START SWITCH IS ENGAGED.
Step 1.
Verify parking brake is engaged and transmission control switch is in NEUTRAL position.
a.
Engage parking brake and move transmission control switch to NEUTRAL.
b.
If problem persists, go to Step 2.
Step 2.
Verify battery disconnect switch is turned to ON position.
a.
Turn battery disconnect switch to ON position.
b.
If problem persists, go to Step 2.
Step 3.
Check circuit breakers (WP 0019).
a.
Reset circuit breakers (WP 0019).
b.
If problem persists, notify Field Level Maintenance.
5. ENGINE DOES NOT IDLE PROPERLY, MISFIRES, OR RUNS ROUGH AFTER WARMUP PERIOD.
Step 1.
Check for diagnostic codes (WP 0005).
a.
If diagnostic codes are present, notify Field Level Maintenance.
b.
If there are no diagnostic codes, go to Step 2.
Step 2.
Check air filters (WP 0014).
a.
Clean or replace air filters (WP 0014).
b.
If problem persists, go to Step 3.
Step 3.
Check for water in fuel (WP 0013).
a.
Drain fuel/water separator (WP 0022).
b.
If problem persists, notify Field Level Maintenance.
6. ENGINE STARTS BUT DIES.
Step 1.
Check for diagnostic codes (WP 0005).
a.
If diagnostic codes are present, notify Field Level Maintenance.
b.
If there are no diagnostic codes, go to Step 2.
Step 2.
Check for water in fuel (WP 0013).
a.
Drain fuel/water separator (WP 0022).
b.
If problem persists, notify Field Level Maintenance.
7. EXCESSIVE EXHAUST SMOKE AT NORMAL OPERATING TEMPERATURE.
Check air filters (WP 0014).
a.
Clean or replace air filters (WP 0014).
b.
If problem persists, notify Field Level Maintenance.
0011-8


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