Bosch UniversalChain 35 Notice Originale page 17

the times when the tool is switched off and when it is running
idle in addition to the trigger time).
Assembly
Mounting and Tensioning the Saw Chain (see
figures B1 – B4)
Do not use any tools for assembly.
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Check the chain tension regularly during use. Using
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the chainsaw with a misaligned or incorrectly tensioned
chain can result in chain breakage, kickback and/or in-
jury.
Upon initial operation, new chains can lengthen con-
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siderably.
Avoid tensioning the chain if it is hot, as this will cause
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the chain to become overtensioned and fit too tightly
against the chain bar when it cools down.
– Place the chain saw on any suitable flat surface.
– Make sure that the affixed tensioning wheel (19) on the
chain bar has been fully rotated anticlockwise.
– Slide the saw chain (18) in the slot around the chain bar
(17).
– Ensure the saw chain is in the correct running direction by
comparing the saw chain with the rotation symbol (15).
– Fit the chain links around the drive sprocket (3) and
mount the chain bar (17) onto the fastening bolt (10).
– Check if all parts are seated properly and hold the chain
bar and the chain in this position.
– Then rotate the affixed tensioning wheel (19) clockwise
until the chain is partly tensioned and will stay mounted
to the chain saw.
– Attach the cover (25) and rotate the clamping knob (24)
clockwise until the cover is partly secured.
– Turn the chain-tensioning ring (23) clockwise until the
correct chain tension is reached. When adjusting with the
chain-tensioning ring (23), make sure to hold the clamp-
ing knob (24) to prevent it from turning and clamping too
early.
– The saw chain (18) is correctly tensioned when it can be
raised approx. 2–3 mm from the chain bar in the centre.
This should be done by using one hand to raise the saw
chain against the weight of the machine.
– Once the correct tension is reached, hold the chain-ten-
sioning ring (23) and rotate the clamping knob (24)
clockwise until it is firmly secured.
– If the chain is tensioned too tightly, unscrew the clamping
knob (24) and repeat the steps for tensioning.
– The ratchet mechanism of the clamping system prevents
the chain from loosening. If the chain-tensioning ring (23)
is hard to rotate, loosen the clamping knob (24) by turn-
ing it anticlockwise.
Bosch Power Tools
Operation
The saw chain is automatically lubricated with chain oil dur-
ing operation via the oil outlet (7).
The chain saw is not supplied filled with oil.
Be sure to fill the chain saw with chain oil before using it.
It is important to use only biodegradable chain lubricants
(according to RAL-UZ 48) to avoid damage to the chain saw.
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.
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F 016 L94 478 | (17.05.2022)