Ingersoll-Rand DOOSAN HP375WCU, Operation & Maintenance Manual, Page: 71 / 73

Lubrication Operation & Maintenance Manual
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Engine starts but
will not turn or
engine shuts
down
prematurely.
Electrical fault. Test the electrical circuits.
Low engine oil
pressure. Check the oil level and oil filter(s).
Safety shut-down
system in operation. Check the safety shut-down switches.
Fuel starvation. Check the fuel level and fuel system
components.
Replace the fuel filter if necessary.
Switch failure Test the switches.
High compressor oil
temperature. Check the compressor oil level and oil cooler.
Check the fan drive.
Water present in fuel
system. Check the water separator and clean if
required.
Faulty relay. Check the relays and replace if necessary.
Engine
Overheats.
Low water level Check the level and replenish if necessary.
Blocked radiator. Stop the machine and clean the cooling fins
with compressed air or steam. Use reduced
pressure for cleaning the fins.
Reduced cooling air
from fan. Check the fan and the drive belts. Check for
any obstruction inside the cowl.
Faulty thermostat Check the thermostat and replace if necessary.
Engine speed
too high. lncorrect throttle arm
setting. Check the engine speed setting.
Engine speed
too low.
lncorrect throttle arm
setting. Check the throttle setting.
Blocked fuel filter. Check and replace if necessary.
Blocked air filter. Check and replace the element if necessary.
Incorrectly set
regulation system. Reset the regulation system. Refer to SPEED
AND PRESSURE REGULATION
ADJUSTMENT in the MAINTENANCE section
of this manual.
Premature unloading. Check the regulation system.
Excessive
vibration
.
Engine speed too low. See "Engine speed too low"
Leaking oil seal.
Improperly fitted oil
seal. Replace the oil seal.
FAULT
CAUSE REMEDY