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Section 7: Troubleshooting
Section 7: Troubleshooting
Problem
Product self-feeds
slowly or won't self-
feed at all
Wood Chipper requires
excessive power to
operate, or stalls
Rotor will not turn
Wood Chipper is
vibrating excessively
Driveline Vibrates
11/22/19
Table of Contents
Troubleshooting
Cause
Knives are worn
Tractor power take-off speed is below
540 rpm
Knives are not sharpened at a
o
45
angle
Plugged rotor and/or discharge chute
Clearance between knife and knife
ledger is too large
Tractor horsepower is too low
Knives are dull/worn
Overloading feed chute with product
Loading feed chute with oversized
product
Product is too green or wet and sticks
to the internal surfaces.
Rotor housing is plugged
Discharge chute is plugged
Clearance between knife and knife
ledger is too large
Knife ledger is dull/worn
Driveline is not engaged
Shear bolt in driveline is broken
V-belts are slipping
V-belts are broken
Take-up spring is loose from idler
Rotor housing is plugged
Loose knife
Broken or missing knife
Knives don't weigh the same
Debris & dirt lodged in rotor
Bent rotor
Worn Universal Joint
Solution
Rotate, sharpen, or replace knives.
"Rotor Knives"
See
on page 30.
Set tractor power take-off speed to 540 rpm.
Resharpen knives to the proper angle.
"Rotor Knives"
See
on page 30.
Clean discharge chute and rotor housing.
"Plugged Chutes & Rotor"
See
"Check Knife Ledger
Readjust ledger. See
Clearance"
on page 28.
Minimum 25 power take-off hp is required when operating
at maximum capacity.
Rotate, sharpen, or replace knives.
"Rotor Knives"
See
on page 30.
Load feed chute with less product.
Feed only product 3" (7.6 cm) in dia or smaller.
Feed only dry product or alternate between dry and green
product to help keep internal surfaces clean.
Clean rotor housing.
"Plugged Chutes & Rotor"
See
Clean discharge chute.
"Plugged Chutes & Rotor"
See
"Check Knife Ledger
Readjust ledger. See
Clearance"
on page 28.
Rotate knife ledger or replace knife ledger.
"Knife Ledger Maintenance"
See
Engage driveline.
Replace shear bolt.
"Shear Bolt Protection"
See
Tighten spring take-up idler.
"V-Belt Take-up"
See
on page 27.
Replace V-belts.
"V-Belt"
See
on page 32.
Re-hook spring to idler & adjust.
Clean rotor housing.
"Plugged Chutes & Rotor"
See
Tighten knife to rotor.
"Rotor Knives"
See
on page 30.
Replace broken or missing knives in pairs.
"Rotor Knives"
See
on page 30.
Re-sharpen the heaver knife to remove material from it
until both knives are the same.
"Rotor Knives"
See
on page 30.
Clean rotor.
"Plugged Chutes & Rotor"
See
Inspect straightness of rotor and rotor shaft. Replace as
rotor and/or rotor shaft if bent.
Replace Universal Joint.
WC1503 Wood Chipper 328-085M
on page 33.
on page 33.
on page 33.
on page 31.
on page 32
on page 33.
on page 33
39
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