Maintaining The Saw Chain; Cylinder Fins - Westfalia FM BK 4545 T Original Instructions Manual

3. Unscrew the spark plug counter-clockwise using the
larger side of the enclosed Combi tool.
4. Clean or replace the spark plug with a new one of
the same type. Clean the electrodes of the spark
plug with a wire brush and adjust the electrode
distance to approx. 0.65 mm (if necessary).
An incorrectly adjusted carburetor, an incorrect
oil/fuel mixture or dirty air filter may cause contami-
nation of the spark plug electrodes, which may result in starting
difficulties or malfunctions.
5. Tighten the spark plug with a force of 15 to 17 Nm. Only use
suitable spark plugs to avoid damaging the piston.

Maintaining the Saw Chain

ATTENTION! To ensure proper and safe operation of the gasoline
chain saw make sure the cutters of the saw chain are always sharp.
The cutters need to be sharpened when:
- Sawdust becomes powder-like,
- You need extra force to saw in,
- The cut way does not go straight,
- Vibration increases,
- Fuel consumption increases, too.
All chain saw service should be performed by competent chain saw
service personnel.

Cylinder Fins

Dust clogging between the cylinder fins will cause overheating of the
engine.
Periodically check and clean the cylinder fins after removing the air
filter. When installing the cylinder cover, make sure the spark plug is
correctly positioned.
Maintenance
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