22
Fault
Possible cause
Remedy
Engine is sputtering.
(runs erratically)
Choke lever set to “
Position
X
“
Set choke lever to “
Position
Y
“
Spark plug connector not firmly placed on.
Firmly place on the spark plug connector.
Vent in the tank cap blocked.
Clean the tank cap and the vent.
Fuel old or contaminated.
Drain the fuel into a container outdoors.
Fill the tank with
fresh and clean fuel.
Incorrect carburetor adjustment.
Have the caburetor adjusted correctly.
Decreasing engine power.
Machine overloaded.
a) Reduce material feeding.
b) Do not exceed the max. branch diameter.
Machine is blocked.
Thoroughly clean inside the machine.
Air filter contaminated.
Clean or replace filter elements
Internal fault.
Contact the manufacturer or the responsible customer
service respectively.
Cutting performance decreases.
Knife edges became blunt.
Turn the knife or replace it with a new set of knives.
Beaters worn.
Replace the beaters.
V-belt slipping.
Tension the V-belt.
Branches are not automatically
drawn in into the side hopper.
Knife edges became blunt.
Exchange knives.
Unusual noise or vibrations.
Screws, nuts or other parts loosened.
Tighten the parts.
If the parts can not be tightened or noises remain:
Contact the manufacturer or the responsible customer
service respectively
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Please observe the enclosed terms of guarantee.
