Bosch GKE 18V-20 Professional handleiding

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English | 33

filled the oil reservoir with the recommended chain saw oil

(see figureC).

u Never over-reach or work with arms fully extended.

u Always hold the pruner saw with both hands.

u Be careful with oil on the grip surfaces and use the

gloves.

u Use a protective mask when cutting treated wood.

u Ensure that there is no power cable in the cutting

area.

Do not use the pruner saw in bad weather conditions, espe-

cially when there is a risk of lightning. This decreases the risk

of being struck by lightning.

Do not touch the chain bar. It may become hot after use.

Always ensure all handles and guards are fitted/undamaged

when using the machine.

General Behaviour (see figureG)

– First-time users should practice cutting logs on a saw

horse.

– Hold the pruner saw at the side of your body, with your

preferred hand.

– The chain must be running at full speed before it makes

contact with the wood.

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

the work.

– Remove the pruner saw with the saw chain running from

an unfinished cut.

– Beware when reaching the end of the cut. The weight of

the pruner saw changes unexpectedly as it cuts free from

the wood. Danger of injury to the legs and feet.

Kickback (see figure H)

Kickback is the sudden backward/upward motion of the pru-

ner 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 pruner saw 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; release the On/Off switch(8)

in dangerous situations to prevent injuries.

To avoid kickback:

– Saw with the chain bar at a flat angle.

– Never work with a widely stretched or heavily worn out

saw chain.

– Remove a blunt saw chain.

– Never saw above shoulder height.

– Never work with the tip of the chain.

– Always hold the pruner saw firmly with both hands.

– Always use a Bosch approved low-kickback saw chain.

– Ensure correct chain tension.

Cutting logs/firewood (see figuresI1 and I2)

– To cut logs, use a saw horse standing on a level and firm

surface.

– 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 result in serious injury to the operator or bystand-

ers.

– Always secure the logs before cutting.

– Always cut the logs beyond the support points to prevent

the log from snapping and the chain from jamming.

– Never allow the saw chain to make contact with the

ground or items of workplace equipment.

– Be careful not to trip over tree stumps, branches, roots,

etc.

– It is not recommended to cut wood larger than the cutting

capacityspecified in the technical data.

Limbing a Branch or Tree (see figureJ)

– Limbing is removing the small branches from a fallen tree

or large branch.

– Leave larger lower limbs to support the log off the ground.

– Remove the smaller limbs in one cut.

– Be careful when cutting branches/twigs, as these can

spring or bounce back.

– Never use the pruner saw on a ladder or above shoulder

height.

– Sawing is optimized when the chain speed remains

steady during cutting.

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 any troubleshooting.

Problem Possible Cause Corrective Measure

Pruner saw fails to op-

erate

Battery discharged Recharge battery; see also "Battery Charging"

Battery not fully connected Ensure both locking levels are engaged

Motor protector has activated Allow motor to cool

Battery too hot/cold Allow to cool/warm

Bosch Power Tools F 016 L94 966 | (03.04.2025)

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