Bedienungsanleitung Bosch UniversalChain 40 (Seite 19 von 343) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch, Türkisch, Schwedisch, Norwegisch, Finnisch)

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kickback brake has not been deactivated before use and

the chain saw will not start. (seefigureE)

Remove the chain guard (7).

Hold the chain saw as described in section “Working with the

Chain Saw”.

To start the machine, first push the lock-off button for the

On/Off switch (15) and then press the On/Off switch (2)

and keep it pressed.

When the machine is running, the lock-off button can be re-

leased again.

To switch off the power tool, release the On/Off switch (2).

Note: For safety reasons, the On/Off switch (2) cannot be

locked; it must remain pressed during the entire operation.

Note: Do not stop chain saw after sawing by actuating the

kickback brake (4).

Run-down Brake/Kickback Brake (see figureE)

The chain saw is equipped with two safety features:

The run-down brake stops the saw chain after releasing the

On/Off switch (2).

The kickback brake is a safety mechanism activated

through the activation lever for kickback brake (4) when

kickback occurs. Chain stops immediately.

The following function check should be carried out at regular

intervals. Slide the activation lever for kickback brake (4) to-

wards the front (position ) and briefly start the chain saw.

The saw chain must not start. To deactivate the kickback

brake again, pull the activation lever for kickback brake (4)

back again (position ).

Do not carry the chain saw by the activation lever for kick-

back brake.

Working with the Chain Saw

Before Cutting

Before starting operation and periodically during cutting,

carry out the following checks:

– Is the chain saw in a safe condition?

– Is the oil reservoir filled? Check oil level gauge prior to

starting and regularly during operation. Refill oil when the

oil level has reached the min fill level at the bottom of the

oil viewing window (26), when the machine is placed ho-

rizontally with the base of the unit on a surface.

– The oil tank filling will last approx. 40 minutes, depending

on sawing intensity and stops.

– Is the saw chain properly tensioned and sharp? Check

chain tension every 10 minutes during operation. Upon

initial operation, new chains can lengthen considerably.

The condition of the chain influences the cutting perform-

ance. Only a sharp chain protects from overload.

– Is the kickback brake deactivated and its function en-

sured?

– Are you wearing the required protective equipment?

Wear safety glasses and hearing protection. Further pro-

tective equipment for head, hands, legs and feet is re-

commended. Suitable protective clothing reduces the

danger of injury from thrown about cutting material and

accidental touching of the saw chain.

Kickback (see figure E)

Kickback is the sudden backward/upward motion of the

chain saw, occuring 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 unpredictable

and can cause heavy injuries to the operator or bystanders.

Particular attention must be given when sawing sidewards,

slanted or during length cuts, as the gripping teeth (10) usu-

ally can not be applied.

To avoid kickback:

– Saw with the chain bar at a flat angle.

– Never work with a loose, widely stretched or heavily worn

out saw chain.

– Sharpen the saw chain as specified.

– Never saw above shoulder height.

– Never work with the tip of the chain.

– Always hold a chain saw firmly with both hands.

– Always use a Bosch low-kickback saw chain.

– Apply the metal gripping teeth (10) for leverage.

– Ensure correct chain tension.

General Behaviour (see figures E–H)

Always hold the chain saw firmly with both hands. Front

handle with the left hand and rear handle with the right

hand. Fully grip both handles with thumb and fingers at all

times during operation. Never operate chain saw using only

one hand. Ensure power cord is located to the rear, and keep

it out of the range of the saw chain and cutting material; pos-

ition yourself in such a manner that the mains cable can not

get caught in branches and twigs.

Use the chain saw only with secure footing. Hold the chain

saw at the right-hand side of your body.

The chain must be running at full speed before it makes con-

tact with the wood. Use the gripping teeth (10) to support

the chain saw on the wood. Use the gripping teeth as a lever-

age point while cutting.

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, using the gripping teeth (10) to apply minimal lever-

age pressure.

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.

Bosch Power Tools F 016 L81 829 | (28.11.2019)

Bosch UniversalChain 40 Seite 19

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