operation manual

GB
- 31 -
9. Troubleshooting guide
Problem Probable cause Corrective Action
Unit won’t start or
starts but will not
run.
- Incorrect starting procedures.
- Incorrect carburetor mixture adjust-
ment setting.
- Fouled spark plug.
- Fuel fi lter plugged.
- Follow instructions in the User Ma-
nual.
- Have carburetor adjusted by an Au-
thorized Service Center.
- Clean / gap or replace plug.
- Replace fuel fi lter.
Unit starts, but engi-
ne has low power.
- Incorrect lever position on choke.
- Dirty air fi lter.
- Incorrect carburetor mixture adjust-
ment setting.
- Move to RUN position.
- Remove, clean and reinstall fi lter.
- Have carburetor adjusted by an Au-
thorized Service Center.
Engine hesitates. - Incorrect carburetor mixture adjust-
ment setting.
- Have carburetor adjusted by an Au-
thorized Service Center.
No power under
load.
- Incorrectly gapped spark plug. - Clean / gap or replace plug.
Runs erratically. - Incorrect carburetor mixture adjust-
ment setting.
- Have carburetor adjusted by an Au-
thorized Service Center.
Smokes excessi-
vely.
- Incorrect fuel mixture. - Use properly mixed fuel (40:1 mix-
ture).
Poor performance
when operated
- Blunt chain
- Loose chain
- Sharpen or replace the chain
- Tension the chain
Engine dies - Empty petrol tank
- Fuel fi lter in the wrong position in
the tank
- Fill up the petrol tank
- Completely fi ll the petrol tank or or
re-position the fuel fi lter in the petrol
tank
Insuffi cient chain
lubrication
(the cutter rail and
chain get hot)
- Empty oil tank for the chain
- Oil lubrication openings moved
- Top up the oil tank for the chain
- Clean the oil lubrication hole in the
cutter bar (Fig. 2/Item A)
Clean the groove in the cutter bar
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Subject to technical changes
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