b. Refer the fuel leak to Unit Maintenance for
repair.
3. Incorrect or poor quality fuel:
Refer the problem of greater-than-normal fuel
consumption to Unit Maintenance for repair.
Problem 7: Greater-Than-Normal Oil
Consumption
Probable Cause(s):
•Oil needs to be changed
• Oil leakage
• Wrong grade of oil used
• Engine wear
1. Oil needs to be changed:
a. Determine the service meter reading at the last
engine oil change or AOAP reading. If more than
250 service hours have elapsed since that
reading, go to Step b. If less than 250 service
hours have elapsed, go to Step 2.
b. Deliver the machine to Unit Maintenance for
performance of a 250 hour maintenance service.
2. Oil leakage:
a. Inspect the machine for visible engine oil leaks. If
leaks are found, determine the class of leak (I, II,
or III), and then go to Step b. If no leaks are
found, go to Step 3.
b. Report the oil leak to Unit Maintenance for
repair.
3. Engine wear:
a. Observe the color and quantity of exhaust
smoke. If the exhaust smoke is greater-than-
normal and blue or black, go to Step b. If the
exhaust smoke is of normal quantity and color,
go to Step c.
b. Report the greater-than-normal oil consumption
and greater-than-normal amount of exhaust to
Unit Maintenance for evaluation.
c. Report the greater-than-normal oil consumption
to Unit Maintenance for evaluation.
Problem 8: Low Engine Oil Pressure
Probable Cause(s):
• Low engine oil level
NOTICE
Stop the engine immediately after low engine oil
pressure is detected. Operating the engine with low oil
pressure may damage the engine.
1. Low engine oil level:
a. Check the engine oil level. If the engine oil level
is normal, go to Step e. If the engine oil level is
low, go to Step b.
b. Inspect for visible oil leaks. If leaks are found, go
to Step d. If no leaks are found go to Step c.
c. Fill the crankcase with the appropriate type of
engine oil, and carefully watch the engine oil
pressure during machine operation. Also watch
for engine overheating (refer to “Problem 5,
Engine Overheats During Normal Operation” in
this section). If low oil pressure continues, go to
Step e.
d. Report the leaks to Unit Maintenance for repair.
e. Report the low oil pressure to Unit Maintenance
for repair.
Problem 9: Engine Stops During Operation
Probable Cause(s):
• No fuel or wrong grade of fuel
• Circuit breaker(s) tripped
• Water in fuel
1. No fuel or wrong grade of fuel:
Diesel fuel is combustible. Do not smoke when
working around diesel fuel. Open flames or
sparks can cause a fire or explosion.
a. Check the fuel level. If the machine has fuel, go
to Step c. If the machine does not have fuel, go
to Step b.
WARNING
!
93
Operation Section
Troubleshooting
TM5-2430-200-10
