SERVICE & MAINTENANCE
12
4.5 INCH HYDRAULIC CHIPPER
6
Section
TROUBLESHOOTING
Before performing any of the corrections in this troubleshooting chart, refer to the appropriate information contained in
this manual for the correct safety precautions and operating or maintenance procedures. Contact your dealer or the
factory for service problems with the machine
PROBLEM
POSSIBLE CAUSES
REMEDY
Rotor stalls or stops
Obstructed discharge.
Use branch or similar object to clear
discharge.
Plugged rotor.
Clear rotor. Feed material more evenly.
Feeding material that is too large.
Reduce size of material being fed into
chipper.
Chipper does not chip
Dull chipper blades.
Rotate or sharpen blades.
Attempting to feed branches that are too
large.
Limit branch size to 4.5 inches in diameter.
Broken or missing chipper blades
Replace blade.
Hard to feed chipper;
requires excessive
power to chip
Dull chipper blades.
Reverse or sharpen blades.
Obstructed discharge.
Use branch or similar object to clear
discharge.
Improper blade clearance.
Adjust clearance between chipper anvil and
chipper blades.
Material from chipper
wraps around rotor
shaft
Stringy, green material bypasses chipper
blades.
Rotate branch or material when feeding to
cut completely.
Dull chipper blades.
Sharpen blades.
Improper blade clearance.
Adjust clearance between anvil and chipper
blades.
Excessive vibration
while running
Rotor out of balance.
Inspect rotor for broken or missing chipper
blades; replace if needed. Check rotor to
see if it wobbles. Check to see if rotor is
assembled correctly.
Chipper blade to anvil clearance is
incorrect.
Set chipper blade/anvil clearance to
recommended distance (1/16").
Rotor will not turn
Obstructed discharge.
Use branch or similar object to clear
discharge.
Plugged rotor.
Clear rotor. Feed material more evenly.
Chipper does not sit
properly on the utility
loader
Wedges are not fully extended
Retract wedges.
Mud, dirt or stones are lodged between the
chipper and the utility loader.
Remove debris from between the chipper
and the utility loader.
