Troubleshooting
5.3
Problem Possible Causes Corrective Action
Engine loses power.
• Dirty or contaminated fuel lter. • Replace fuel lter.
• Dirt, water, or stale fuel is in
fuel system.
• Drain fuel in tanks into
an appropriate storage
container and dispose of bad
fuel properly.
• Rell fuel tanks with fresh,
clean fuel.
• Replace fuel lter.
Engine overheats.
• Engine load is excessive. • Reduce ground speed.
• Reduce speed of
attachment.
• Engine oil level in crankcase
is low.
• Add the appropriate engine
oil to crankcase. See engine
manual for oil specications.
• Cooling ns and air passages
under engine blower housing
are plugged.
• Remove obstruction
from cooling ns and air
passages.
• Cooling system low on coolant • Check and rell coolant to
levels and with the type
of coolant indicated in the
engine manual.
• Dirty or plugged radiator • Clean the radiator.
Abnormal engine vibration.
• Engine mounting bolts are
loose.
• Tighten engine mounting
bolts.
With the machines engine
turned off, the boom creeps
downward more than 3” per
hour (less than 3” per hour
is normal for this machine).*
• Valve spool leakage. • Contact Service Dealer.
• Cylinder seals are leaking. • Replace cylinder seals.
With the machines engine
turned off, boom drops
downward quickly and then
stops.
• Cylinder seals are leaking. • Replace cylinder seals.
The machine does not
travel in either forward or
reverse directions.
• Engine is not running at full
speed.
• Advance throttle to full
engine speed.
• Hydraulic uid is cold. • Fully warm hydraulic uid.
• Hydraulic uid level is low. • Check and ll the hydraulic
uid tank with the
appropriate hydraulic uid.
• Fuel tanks are empty and
engine stops.
• Fill fuel tanks with fuel.
• If all above has been checked. • Contact authorized service
dealer.
*Tested with warm oil and no more than 530 lbs (240 Kg) in the bucket. Measure the
downward drop at the attachment lock pins on the back of the mount plate.
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