Morbark BOXER 320 - Engine Performance and Vibration Issues

Troubleshooting
5.3
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 specications.
• Cooling ns and air passages
under engine blower housing
are plugged.
• Remove obstruction from
cooling ns and air passages.
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.