Manual Bosch GKE 40 BCE (page 23 of 153) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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English - 6

Switching On and Off

Hold chain saw as described in “Cutting”.

For switching on the machine, press the lock-off

button 3, then fully press the On/Off switch 2 and

hold in this position. The lock-off button 3 can now

be released.

For switching off, release the On/Off switch 2.

Do not stop chain saw after sawing by activating

the front hand guard (kickback brake).

The kickback brake is a safety mechanism acti-

vated through the front hand guard 5, when kickback

occurs. Chain stops immediately.

The following function check should be carried out at

regular intervals. Push front hand guard 5 forward

(position ➋) and start the chain saw. The chain must

not start. To deactivate the kickback brake, release

On/Off switch 2 and pull hand guard 5 backwards

(position ➊).

Before Cutting

Before and periodically during cutting check as fol-

lows:

– Is the chain saw in a fail-safe condition?

– Is the oil reservoir filled? Check oil level

gauge 25 prior to starting and regularly during op-

eration. Refill oil when oil level is low. The oil tank

filling will last approx. 15 minutes, depending on

sawing intensity and stops.

– Is the chain tension in order and is the chain

sharp? Check chain tension every 10 minutes

during operation. Upon initial operation, new

chains can lengthen considerably. The condition

of the chain influences the the cutting perform-

ance. Only a sharp chain protects from overload.

– Is the kickback brake deactivated and its function

ensured?

– Are you wearing the necessary protective equip-

ment? Wear safety glasses and hearing protec-

tion. Further protective equipment for head, hand,

legs and feet is recommend. Adequate protective

clothing will reduce personal injury by flying de-

bris or accidental contact with saw chain.

Kickback

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 unpred-

icably and can cause severe injuries to the operator

or bystanders.

Particular attention must be given when sawing

sidewards, slanted or during length cuts, as the grip-

ping teeth 11 usually can not be applied.

To avoid kickback:

– Saw with the chain bar at a flat angle.

– Never work with a loose, widely stretched or the

heavily worn out chain.

– Ensure chain is sharpened correctly.

– Never saw above shoulder height.

– Never work with the tip of the chain bar.

– Always the hold chain saw firmly with both hands.

– Always use a Bosch low-kickback chain.

– Apply the metal gripping teeth 11 for leverage.

– Ensure correct chain tension.

General Behavior

Always hold the chain saw firmly with both

hands. Front grip with the left hand and rear grip with

the right hand. Fully grip both handles at all times

during operation. Never operate chain saw using

only one hand. Ensure power cord is located to the

rear, away from the chain and wood and so pos-

tioned that it will not be caught on branches or the

like during cutting.

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 contact with the wood. Use the metal grip-

ping teeth 11 to secure the saw onto the wood be-

fore starting to cut. Use the gripping teeth as a lev-

erage point “X” while cutting.

Reset the gripping teeth at a lower point when saw-

ing thicker logs by pulling the chain saw slightly

backwards until the gripping teeth release, and repo-

sition at lower level to continue sawing. Do not re-

move the saw completely from the wood.

Do not force the chain while cutting, let the chain do

the work, using the gripping teeth 11 to apply mini-

mal leverage pressure.

Do not operate the chain saw with arms fully ex-

tended or attempt to saw areas which are difficult to

reach, or on a ladder. Never use the chain 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 saw may change unexpectedly as it

cuts free from the wood. Accidents can occur to the

legs and feet.

Always remove the saw from a wood cut while the

saw is running.

Kickback Brake

Cutting

F 016 L70 540.book Seite 6 Montag, 9. Februar 2009 2:37 14

23 • F 016 L70 540 • TMS • 29.01.09

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Bosch GKE 40 BCE Manual

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