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12. TROUBLESHOOTING
This table contains some important tips to help you quickly identifing possible
causes of malfunctioning and eventual remedies.
Setting, cleaning, repairing, adjustment and maintenance works on the chipper
must be strictly performed in accordance with the applicable safety standards.
Type of malfunction
Origins of the problem
Possible remedies
Motor won’t start
- Power problem
- Faulty switch
- Faulty/damaged motor
- Failure to close the contact
- Check power cord
- Replace switch
- Replace motor
- Let the threaded stud
further progress in the contact
holder
The E-Motor turns but in
the wrong direction
- The switch is wrongly phased
- Invert phases
(use phase inverter)
The gasoline engine will not
start
- No gasoline in the tank
- Defective spark plugs
- Defective engine
- Failure to close the contact
- Fill the tank up
- Replace spark plugs
- Replace engine
- Let the threaded stud
further progress in the contact
holder
The chipper keeps jamming
- Excessive machine load
- Rotor is jammed
- Feed less material
- Do not exceed branches max
diam.
- Clean the drum (rotor)
The low volt release switch
keeps switching the unit off
- Shredder overloaded
- Power cord too long as compa-
red to the section
- Feed less material in
- Use a cord with bigger section
(2,5mm²)
- Use a shorter cord
Insufficient or discontinuous
shredder output
- V-belt slips
- Hammers are wore out
- Cutter knife is dull
- Motor runs with 2 phases
- Stretch the V-belt
- Replace hammers
- Replace cutter knife
- Check the electric connection
No automatic intake in the
side spout
- Cutter-knife is dull
- Replace or grind the knife
Shredded material too large
or too small
- You are using the wrong grate
- Perforated grate is open loose
- Replace the grate
- Close the grate
