Bosch UniversalChain 35 Original Instructions Manual page 17

The recommended Bosch biodegradable chain saw oil can
be found in the accessories.
Filling the oil reservoir: (see figure C1)
– Set the chain saw on any suitable surface with the oil filler
cap (20) facing upward.
– Clean the area around the oil filler cap (20) with a cloth
and unscrew the cap.
– Add Bosch biodegradable chain saw oil until the oil level
can be viewed through the oil tank opening (21).
– You can check the oil level through the viewing
window (21) during operation. When the minimum level
is reached, top up with new oil.
Switching On and Off (see figure C2)
Pull the hand guard/activation lever for the kickback
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brake (5) from position ➋ to position ➊ towards the
front handle (4). If the hand guard/activation lever for
the kickback brake (5) has not been moved, then the
kickback brake has not been deactivated before use
and the chain saw will not start.
Always push the hand guard/activation lever for the
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kickback brake forward to the deactivated position
after each use.
– Remove the chain guard (26).
– Hold the chain saw as shown in figure C3.
– Pull the activation lever for the kickback brake (5) back-
wards to the front handle.
– To start the machine, first push the lock-off button for
the On/Off switch (22) and then press the On/Off switch
(2) and keep it pressed. When the machine is running,
the lock-off button can be released again.
– To switch off the power tool, release the On/Off switch
(2).
– The kickback brake is a safety mechanism activated by
the wrist through the front hand guard (5) when kickback
occurs. The chain stops immediately. This reduces the
risk of kickback injury. Try to avoid kickback.
– Periodically push the activation lever for the kickback
brake (5) forward during operation to test the function of
the kickback brake. Stop operation immediately if the
chain saw does not stop immediately.
Note: Do not stop the chain saw after sawing by actuating
the kickback brake (5).
Checking the Lubrication (see figure C4)
– Tilt the chain saw so that the chain bar is 20 cm away
from a sheet of paper lying on the ground.
– Switch on the chain saw and let it run for approx.
1 minute until oil splashes can be seen on the sheet of pa-
per to confirm that oil is being pulled through the auto-
matic lubrication system.
Note: Operating the chain saw without chain oil or when the
oil level is below the minimum mark will result in damage to
the chain saw.
Bosch Power Tools
Note: Oil becomes denser at lower temperatures, which de-
creases the flow rate of oil.
Note: Saw chain life and cutting capacity depend on op-
timum lubrication.
Working
Always read the operating and safety information be-
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fore use.
Always check the tool and chain condition, the oil
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level and correct assembly before use. Only use the
chain saw if it is in perfect condition.
Always wear suitable clothing and personal protective
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equipment.
Always make sure that the environment is dry and
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free from obstacles and persons not involved.
Never use the chain saw on a ladder or above shoulder
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height.
Never over-reach or work with arms fully extended.
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Always hold the chain saw firmly with both hands.
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Always make sure that the power cord is routed to the
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rear to ensure it does not tangle with branches and
equipment during cutting.
General Behaviour (see figure D)
– First time users should practise cutting logs on a saw-
horse or cradle.
– Hold the chain saw at the right-hand side of your body.
– Use the gripping teeth (12) as a leverage point while cut-
ting.
– The chain must be running at full speed before it makes
contact with the wood.
– Reset the gripping teeth at a lower point when sawing
thicker logs or tree trunks. For this, pull the chain saw
slightly backwards until the gripping teeth release, and re-
position at lower level to continue sawing. Do not remove
the chain saw completely out of the cut.
– Do not force the saw chain while cutting, let the chain do
the work.
– Always remove the chain saw from a wood cut while the
saw chain is running.
– 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.
Kickback (see figure E)
– Kickback is the sudden backward/upward motion of the
chain saw, occurring when the chain (at the tip of the
chain bar) comes in contact with a log or wood, or when
the chain becomes jammed.
– When kickback occurs, the chainsaw reacts unpredict-
able and can cause heavy injuries to the operator or
bystanders.
English | 17
F 016 L94 197 | (17.11.2021)