30
9 INCH CHIPPER
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSES
REMEDY
Controller light is not
on
No power to controller
Check the resettable fuse breaker and/or
condition of battery
Engine will not start
Lack of fuel or oil
Fill fuel tank and check oil level
Kill switch on access cover is damaged
Test kill switch. Replace if it is not working
Dirty, stale, or contaminated fuel
Drain and refill fuel tank with fresh, clean
unleaded regular gasoline or diesel.
Replace fuel filter.
Internal engine problems
See your engine dealer
Engine or rotor stalls or
stops
Chipper rotor housing or discharge tube is
plugged
Shut off engine and disengage belt
engagement. Refer to manual for
information on clearing a plugged rotor.
Never use the belt engagement to clear a
plugged rotor.
Feeding material that is too large
Limit branch size to rated capacity
Engine overheats
Cooling system plugged
Clean cooling fan and cooling fins on the
radiator or engine block
Improper coolant level
Fill engine to correct coolant level. Refer to
the engine owner’s manual
Engine stalls or
belt squeals when
engaging belt
Engaging belt too fast
Reduce engagement speed
Belt tension too loose
Adjust tensioner. Replace belt if needed.
Machine chips poorly
Dull chipper blades
Flip, sharpen, or replace
Drive belts loose or worn
Inspect drive belts, adjust or replace if
needed
Feeding material that is too large
Limit branch size to rated capacity
Cannot engage belt
Improper belt installation, belt not under belt
guide
Install belt properly, install belt under belt
guide
Improper belt tension
Adjust belt tension, Replace belt or belt
tension spring if needed
Excessive belt wear
Not using correct belt
Contact your nearest authorized dealer to
order the correct belt for your chipper
Pulley(s) damaged or worn
Replace pulley(s)
Pulley(s) not in alignment
Align pulley(s) to within 1/16" with straight
edge
Belt(s) tension too loose
Replace belt or belt tension spring
During chipping
the sensor gives a
solid green light, but
the feed roller runs
intermittently
Rotor RPM sensor is set too far away
Open the shield and check rotor sensor,
Gap should be 1/32" (thickness of a credit
card). Clean face of sensor. Replace if
necessary.
6.2 TROUBLESHOOTING GUIDE
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
Crary Bear Cat
®
for service problems with the machine.
