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Section 7: Troubleshooting
WC1503 Wood Chipper 328-085M
Table of Contents
12/15/15
Troubleshooting
Problem Cause Solution
Product self-feeds
slowly or won’t self-
feed at all
Knives are worn
Rotate, sharpen, or replace knives.
See
“Rotor Knives” on page 23.
Tractor PTO speed is below 540 RPM Set tractor PTO speed to 540 RPM.
Knives are not sharpened at a
45
o
angle
Resharpen knives to the proper angle.
See “Rotor Knives” on page 23.
Plugged rotor and/or discharge chute
Clean discharge chute and rotor housing.
See
“Plugged Chutes & Rotor” on page 26.
Clearance between knife and knife
ledger is too large
Readjust ledger. See
“Check Knife Ledger
Clearance”
on page 21.
Wood Chipper requires
excessive power to
operate, or stalls
Tractor horsepower is too low
Minimum 25 PTO HP is required when operating at
maximum capacity.
Knives are dull/worn
Rotate, sharpen, or replace knives.
See
“Rotor Knives” on page 23.
Overloading feed chute with product Load feed chute with less product.
Loading feed chute with oversized
product
Feed only product 3" in dia2.5meter or smaller.
Product is too green or wet and sticks
to the internal surfaces.
Feed only dry product or alternate between dry and green
product to help keep internal surfaces clean.
Rotor housing is plugged
Clean rotor housing.
See
“Plugged Chutes & Rotor” on page 26.
Discharge chute is plugged
Clean discharge chute.
See
“Plugged Chutes & Rotor” on page 26.
Clearance between knife and knife
ledger is too large
Readjust ledger. See “Check Knife Ledger
Clearance” on page 21.
Knife ledger is dull/worn
Rotate knife ledger or replace knife ledger.
See
“Knife Ledger Maintenance” on page 24.
Rotor will not turn
Driveline is not engaged Engage driveline.
Shear bolt in driveline is broken
Replace shear bolt.
See
“Shear Bolt Protection” on page 25
V-belts are slipping
Tighten spring take-up idler.
See
“V-Belt Take-up” on page 22.
V-belts are broken
Replace V-belts.
See
“V-Belt” on page 25.
Take-up spring is loose from idler Re-hook spring to idler & adjust.
Rotor housing is plugged
Clean rotor housing.
See
“Plugged Chutes & Rotor” on page 26.
Wood Chipper is
vibrating excessively
Loose knife
Tighten knife to rotor.
See
“Rotor Knives” on page 23.
Broken or missing knife
Replace broken or missing knives in pairs.
See
“Rotor Knives” on page 23.
Knives don’t weigh the same
Re-sharpen the heaver knife to remove material from it
until both knives are the same.
See “Rotor Knives” on page 23.
Debris & dirt lodged in rotor
Clean rotor.
See
“Plugged Chutes & Rotor” on page 26
Bent rotor
Inspect straightness of rotor and rotor shaft. Replace as
rotor and/or rotor shaft if bent.
Driveline Vibrates
Worn Universal Joint Replace Universal Joint.
Section 7: Troubleshooting