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The air filter (33) must be checked more frequently in
the case of very dusty air.
• Loosen the catch for the air filter cover (5) by turn-
ing it anti-clockwise.
• Remove the air filter cover (3).
• Remove the air filter (33).
• Clean the air filter (33) by knocking out or blowing
out (with compressed air).
The re-assembly takes place in reverse order.
m ATTENTION
Never clean the air filter (33) with petrol or flammable
solvents.
13.3 Cleaning the chain drive
m WARNING
Danger of injury!
Always wear protective gloves when touching the
saw chain (17). Danger of injury due to the sharp cut-
ting teeth!
Note
Clean the chain drive after each use.
• Set the chainsaw down on a level and stable sur-
face.
• Pull the front hand guard (1) back as far as it will go
to release the chain brake (see fig. D).
• Turn the chain tensioning screw (21) anti-clockwise
using the slotted screwdriver (31) to reduce the ten-
sion.
• Remove the two fixing nuts (20) with the spark plug
wrench (31).
• Remove the chain cover (22).
• Carefully remove the saw chain (17) from the guide
rail (16) and the chain wheel (26).
• Remove the guide rail (16). Clean them with a
brush.
• Now thoroughly clean the entire chain drive area
and the chain cover (22) with a brush or by blowing
it out (with compressed air).
The re-assembly takes place in reverse order.
13.4 Maintenance of the spark plug (Fig. M, N, O)
• Remove the air filter (33) as described in 13.2
"Cleaning the air filter".
• Remove the spark plug connector (34) by turning it
to the left and right and pulling it at the same time.
Hold and pull the spark plug connector (34) by the
connector only. Never pull on the cable!
• Loosen the spark plug with the enclosed spark plug
wrench (31).
• The re-assembly takes place in reverse order.
42 | GB
Electrode gap = 0.6 mm (distance between the elec-
trodes, between which the ignition spark is generat-
ed). Check the spark plug for dirt for the first time af-
ter 10 operating hours and clean it with a copper wire
brush if necessary.
Then service the spark plug every 50 operating hours.
13.5 Maintaining the chain lubrication
• See chapter "Checking and adjusting chain lubri-
cation".
13.6 Maintaining the carburettor settings
• If the saw chain (17) moves at idle or the engine
stops by itself when the throttle is released, a car-
burettor adjustment must be made.
Note
Have carburettor adjustments (e.g. idle speed) car-
ried out only by qualified specialists to avoid engine
damage.
13.7 Maintaining the guide rail
• Remove any burrs on the edge of the guide bar us-
ing a metal file.
• Clean the groove of the guide rail (16) using a brush
or compressed air. Replace the guide rail (16) as
soon as the groove is worn.
• Turn the guide rail (16) after each use to ensure
even wear.
• Check the sprocket at the tip of the guide rail (16)
for smooth running. If necessary, lubricate it with a
bearing oil.
13.8 Sharpening and maintaining the saw chain
m WARNING
Danger of injury!
The teeth of the saw chain are very sharp. In order to
avoid injuries, always wear thick gloves when in use!
Keep the saw chain in a good operating condition;
effective work with the chainsaw is only possible if
the saw chain is sharp, well lubricated and properly
tensioned. This also reduces the risk of kick-back.
The properly sharpened saw chain (17)
A properly sharpened saw chain (17) goes effortless-
ly through the wood and requires very little pressure.
Do not work with a dull or damaged saw chain (17). It
increases physical exertion, magnifies the vibrations
and leads to unsatisfactory results as well as greater
wear and tear.
• Clean the saw chain (17) regularly.
• Check the saw chain (17) for breaks in the links and
damaged rivets.
• Sharpening a saw chain (17) should only be carried
out by experienced users!
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