9. TROUBLESHOOTING
Problem
Cause
Remedy
Engine fails to
start
Spark plug wire disconnected
Attach spark plug wire securely to spark
plug
Out of fuel or stale fuel
Fill with clean, fresh gasoline
Fuel valve not in ON position
Fuel valve must be in ON position
Choke lever not in CLOSE position
Choke level must be in CLOSE position for
a cold start
Blocked fuel line
Clean the fuel line
Fouled spark plug
Clean, adjust gap, or replace
Engine flooding
Wait a few minutes to restart, but do not
prime
Engine runs
erratically
Spark plug wire loose
Connect and tighten spark plug wire
Unit running with Choke lever in CLOSE
position
Move choke lever to OPEN position
Blocked fuel line or stale fuel
Clean fuel line. Fill tank with clean, fresh
gasoline
Vent plugged
Clear vent
Water or dirt in fuel system
Drain fuel tank. Refill with fresh fuel
Dirty air cleaner
Clean or replace air cleaner
Improper carburetor adjustment
Refer to Engine Manual
Engine overheats
Engine oil level low
Fill crankcase with correct oil
Dirty air cleaner
Clean air cleaner
Air flow restricted
Remove housing and clean
Carburetor not adjusted properly
Refer to Engine Manual
Chipping action
seems too slow,
or cutting disk
stalls, or no
material is
discharged when
engine is running
The engine speed is too slow causing belt
to slip
Run the engine at full throttle
Drive Belt loose or damaged
Tighten or replace drive belt
Knives dull or damaged
Sharpen or replace knives
Cutting disk jammed by debris from the
feed hopper and discharge chute
Remove any built-up debris and turn
cutting disk with a wooden stick to be
sure it turns freely
Discharge chute clogged
Clean out debris
The belt frays or
rolls over the
pulley
The rotor drive pulley groove may be
nicked
Check the drive belts for wear and hard
spots. File off any nicks on the pulley
The drive belts may be stretched
Replace the drive belts
The pulleys may be misaligned
Adjust the pulleys
When chipping,
branch seems to
vibrate and move
about excessively
with unusual
noise
Knives dull or damaged
Sharpen or replace knives
Knives is not properly seated on the
cutting disk
Loosen the knives mounting screws, reset
the knives and tighten the screws
The gap between the knives and wear
plate is too large
Adjust the gap
Rotor overloaded with material
Allow unit to clear itself before adding
more material to the hopper
Chipper Knives
are hitting the
wear plate
The gap between the knives and wear
plate is set incorrectly.
Adjust the gap.
The machine's
wheels track left
or right while
being towed
Low tyre pressure
Inflate tyres
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