Bosch UniversalChain 18 Originalbetriebsanleitung Seite 25

Never operate the chain saw with arms fully extended. Do
not attempt to saw areas which are difficult to reach, or on a
ladder. Never saw above shoulder height.
Sawing is optimized when the chain speed remains steady
during cutting.
Beware when reaching the end of the cut. The weight of the
chain saw changes unexpectedly as it cuts free from the
wood. Danger of injury to the legs and feet.
Always remove the chain saw from a wood cut while the saw
chain is running.
Cutting Logs (see figures E–G)
To cut logs, use a saw horse standing on a level and firm sur-
face.
When cutting logs, observe the following safety instructions:
Support logs so that the face sides at the cut do not close in
against each other, which would result in the chain being
jammed.
Position and set short logs safely before sawing.
Saw only wood or wooden objects. When sawing, always
take care to avoid hitting stones, nails, etc., as these could
be thrown up, could cause damage to the chain, or could res-
ult in serious injury to the operator or bystanders.
Keep a running chain saw clear of wire fencing or the ground.
Use of the saw to thin out branches or bushes is not ap-
proved.
Length cuts must be carried out with particular care, as
leverage with the gripping teeth (8) is not possible. Saw at a
flat angle to avoid kickback.
When working on a slope, operate above or to the side of the
trunk or laying tree.
Troubleshooting
The following chart lists problem symptoms, possible causes and corrective action, if your power tool does not operate prop-
erly. If these do not identify and correct the problem, contact your service agent.
Warning: Switch off and remove the battery prior to
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any troubleshooting.
Problem Possible Cause
Chain saw fails to oper- Battery discharged
ate
Battery not fully connected
Motor protector has activated
Battery too hot/cold
Saw chain will not Battery discharged
move
Power tool defective
Chain saw operates in- Internal loose contact
termittently
On/Off switch (2) defective
Saw chain dry No oil in reservoir
Vent in oil filler cap (4) clogged
Oil passage clogged
Bosch Power Tools
Be careful not to trip over tree stumps, branches, roots, etc.
When cutting logs, combustible wood dust may form. Ensure
that you are not near heaters and open flames.
Cutting branches (see figure H)
Always wear hard hat to protect head against falling
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branches.
A cut branch can lead to personal injury by falling on
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you or springing back from the ground. Cut longer
branches in sections.
Reduce force before the branch is completely cut off.
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You can injure yourself if the tool suddenly falls down
and you lose balance and control of the chain saw.
The chain must be running at full speed before it makes con-
tact with the wood. Use the tip protector to support the un-
dercutting.
Pruning straight through a tree branch from the top edge
down is appropriate for branches up to 5 cm in diameter.
Thicker branches should be pruned in three-steps, to pre-
vent damaging the tree. The tip protector is designed to sup-
port the undercutting of branches.
Do not force the pole pruner while cutting, let the chain do
the work.
Sawing is optimized when the chain speed remains steady
during cutting.
Limbing a Tree (see figure I)
Limbing is removing the branches from a fallen tree. When
limbing, leave larger lower limbs to support the log off the
ground. Remove the small limbs in one cut as illustrated in
the figure. Branches under tension should be cut from the
bottom up to avoid binding the chain saw.
Corrective Measure
Recharge battery; also see "Battery Charging"
Ensure both locking levels are engaged
Allow motor to cool
Allow to cool/warm
Recharge battery; also see "Battery Charging"
Contact Service Agent.
Contact your Bosch Service Centre
Contact your Bosch Service Centre
Refill oil
Clean oil filler cap (4)
Clean oil passage
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F 016 L94 153 | (04.02.2021)