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After each use, check the chain saw for wear
and renew any damaged components.
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Do not get the machine wet or expose it to
moisture. Clean plastic parts with a cloth and
do not use any cleaning agents or solvents.
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Clean the cooling air slots if they are blocked.
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Do not spray the chain saw not with water
and do not use a high-pressure cleaner.
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Only use spare parts specified by the manu-
facturer.
8.1
Cleaning the chain sprocket interior
Thoroughly clean the chain saw after each use.
1. Remove the rechargeable battery and place
the chain saw on a stable base.
2. Unbolt the cover of the chain sprocket.
3. Clean the inside with a suitable brush.
4. Remove the saw chain and take out the
guide rail.
5. Clean the groove in the rail and the oil inlet
bore.
8.2
Sharpening the saw chain (23)
DANGER! Danger of fatal injury due to
kickback! Improperly sharpened saw chain in-
creases the danger of kickback and thus the dan-
ger of fatal injury.
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Sharpen the saw chain properly to reduce the
risk of kickback.
NOTE Inexperienced chain saw operators
are recommended to have the saw chain sharp-
ened by a specialist at the customer service.
The saw chain must always be well-sharpened
for reasons of safety and efficiency.
Sharpening is required when:
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The saw chips are like sawdust.
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Greater force is necessary for cutting.
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The cut is not straight.
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Vibration increases.
If you get trained customer service personnel to
sharpen the chain for you, they will be able to do
this with the appropriate tools for a minimum of
material removal and uniform sharpening of all
teeth.
You can sharpen the saw chain yourself using
special round files whose diameters are adapted
to the specific chain type (see chapter 8.4 "Chain
maintenance table", page 47). A certain amount
of skill and experience is necessary to avoid
damage to the teeth.
46
To sharpen the saw chain:
1. Switch off the chain saw and remove the bat-
tery.
2. Release the chain brake.
3. Clamp the chain bar with fitted saw chain in a
suitable vice, taking care that the saw chain
can move freely.
4. Tension the chain if it is slack.
5. Place the file in the corresponding guide and
then guide the file through the opening of the
tooth, making sure that you keep an even an-
gle according to the tooth profile.
6. Perform just a few strokes of the file and ex-
clusively in the forwards direction, then re-
peat the working step on all teeth in the same
orientation (right or left).
7. Reverse the position of the chain bar in the
vice and repeat the working step on the re-
maining teeth.
8. Check that the limit tooth does not project be-
yond the checking tool, and file off any projec-
tion using a flat file, then round down the profile.
9. After sharpening, clean away all filings and
dust, then lubricate the saw chain in an oil bath.
The chain must be replaced if:
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The length of the teeth is less than 5 mm;
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Where applicable: The mark on the teeth of
the cutting elements is exceeded;
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The play on the links at the chain rivets is ex-
cessive.
8.3
Checking, turning and greasing the
chain bar (24, 25)
Checking the chain bar
Regularly check the chain bar for damage. If nec-
essary, remove protruding burrs (24/1), i.e. file off
at an angle of 45° (24/2).
Turning the chain bar
The chain bar must be turned over after each
chain sharpening and chain change in order to
avoid one-sided wear.
Greasing the chain bar
1. Carefully clean groove in rail (24/3) and oil in-
let bores (24/4).
2. Carefully clean lubricating hole (25/1) on both
sides.
3. Use a grease gun (25/2) to pump in sufficient
grease on both sides until the grease emerg-
es evenly at the tips of the sprocket. Keep
turning the sprocket while doing this.
Maintenance and care
CS 3635
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