13
PROBLEM
Rotor not turning.
CAUSE
Obstructed discharge.
SOLUTION
Shut down and clear debris.
Rotor plugged.
Clear rotor.
Broken shear pin.
Replace shear pin.
Slow feeding.
Knives are dull.
Sharpen knives.
Blade angle wrong,
Re-sharpen knives to
improper angle.
specified angle.
Discharge hood clogged.
Clear discharge hood.
Chipper requires excessive
power or stalls.
Obstructed discharge.
Rotor plugged.
Clear discharge hood.
Clear rotor.
Green material will not
Allow material to dry or
discharge.
alternately feed in dry
material.
Dull knives.
Sharpen knives.
High power required
Plugged rotor.
Clear rotor.
Dull knives.
Sharpen knives.
Vibration while running.
Yokes
Drive line vibration.
Check drive line phasing.
must be aligned.
Check rotor to see if it wobbles.
Check to see if rotor is
assembled correctly.
Drive belts slipping or smoking.
Loose or worn belts.
Adjust or replace belts.
Plugged rotor.
Clear rotor.
Troubleshooting