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• 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
•
Remove the air filter (33) as described in 13.2
“Cleaning the air filter”.
• Remove the spark plug connector (33) by turning it
to the left and right and pulling it at the same time.
Hold and pull the spark plug connector (33) by the
connector only. Never pull on the cable!
(See fig. O)
• Loosen the spark plug with the enclosed spark plug
wrench / slotted screwdriver (28).
• The re-assembly takes place in reverse order.
Electrode gap = 0.6 mm (distance between the elec-
trodes, between which the ignition spark is generat-
ed). Check the spark plug for dirt and grime after 10
operating hours and if necessary, clean it with a cop-
per wire brush.
Then service the spark plug every 50 operating hours.
13.5 Maintenance of the chain lubrication
• See chapter “Checking and adjusting chain lubrica-
tion”.
13.6 Maintenance of 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) carried
out only by qualified specialists to avoid engine dam
-
age.
13.7 Maintenance of the guide bar
• Remove any burrs on the edge of the guide bar us-
ing a metal file.
• Clean the groove of the guide bar (16) using a brush
or compressed air. Replace the guide bar (16) as
soon as the groove is worn.
• Turn the guide bar (16) after each use to ensure
even wear.
• Check the sprocket at the tip of the guide bar (16)
for smooth running. If necessary, lubricate it with a
bearing oil.
13.8 Mounting the guide bar and tensioning the
saw chain
m
ATTENTION
Always carry out assembly with the engine switched
off.
13.1 Cleaning the engine unit
m
WARNING
Danger of burning!
Do not touch hot silencers, cylinders or cooling fins.
• Keep protective devices, air vents and the engine
housing as free of dust and dirt as possible. Blow it
out with low-pressure compressed air.
• Clean the device at regular intervals using a damp
cloth and a little detergent. Make sure that no water
can penetrate the device interior.
13.2 Cleaning the air filter
Fouled air filters diminish the engine output due to re
-
duced air supply to the carburettor.
Regular inspection is therefore essential.
The air fil
-
ter (32) should be checked regularly and cleaned as
required.
The air filter (32) must be checked more frequently in
the case of very dusty air.
•
Loosen the catch for the air filter cover (5) by turning
it anti-clockwise.
(See fig. M)
•
Remove the air filter cover (3).
•
Remove the air filter (32).
(See fig. N)
•
Clean the air filter (32) by knocking out or blowing
out (with compressed air).
The re-assembly takes place in reverse order.
m
ATTENTION
Never clean the air filter (32) with petrol or flammable
solvents.
13.3 Cleaning the chain drive
m
WARNING
Risk of injury!
Always wear protective gloves when touching the saw
chain (17). Danger of injury due to the sharp cutting
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. B).
•
Remove the two fixing nuts (20) with the spark plug
wrench / slotted screwdriver (28).
• Remove the chain cover (22).
• Carefully remove the saw chain (17) from the guide
bar (16) and the chain wheel (26).
• Remove the guide bar (16). Clean them with a
brush.
Summary of Contents for 5910120903
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