4 INCH CHIPPER
16
Section
TrouBlesHooTInG
6
proBlem
possIBle Causes
remeDY
Chipper does not chip.
Dull chipper blades.
Rotate or sharpen blades.
Drive belts loose or worn.
Inspect drive belts, adjust or replace if needed.
Attempting to feed branches that are too large. limit branch size to 5" 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.
Belt squeals when
engaging clutch.
Engaging clutch too fast.
Engage clutch more slowly.
Plugged rotor.
Clear rotor. Feed material more evenly.
Belt tension too loose.
Replace belt or spring.
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.
Drive system vibration.
Check drive belts and pulleys for bad or worn areas.
Check for dull chipper blades or shredder knives.
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” to 1/8”).
Rotor will not turn.
Drive belt too loose or broken.
Replace belt or spring.
Obstructed discharge.
use branch or similar object to clear discharge.
Plugged rotor.
Clear rotor. Feed material more evenly.
Cannot engage clutch.
Improper belt installation
Install belt properly
Improper belt tension.
Adjust belt tension. Replace belt or spring if needed.
Excessive belt wear.
Not using correct belt.
Contact your nearest authorized dealer to order the
correct belt for your chipper/shredder.
Pulley(s) damaged or worn.
Replace pulley(s).
Pulley(s) not in alignment.
Align pulley(s) with straight edge.
Belt(s) tension too loose.
Replace belt or spring.
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.
