Manual Bosch GST 18 V-LI S Professional (page 20 of 277) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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20 | English

The worklight lights up when the on/off switch (2) is lightly

or fully pressed allowing the work area to be illuminated in

poor lighting conditions.

u Do not look directly into the worklight; it can blind

you.

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

Activate the lock-off button(1) by pressing the lock-off but-

ton next to the symbol .

Note: For safety reasons, the on/off switch (2) cannot be

locked; it must remain pressed during the entire operation.

Preselecting the stroke rate (GST18V‑LIS)

You can also preselect the stroke rate and change it during

operation using the stroke rate preselection thumbwheel

(16).

The required stroke rate is dependent on the material and

the work conditions and can be determined using practical

tests.

It is recommended that you reduce the stroke rate when

placing the saw blade on the workpiece and when sawing

plastic and aluminium.

During prolonged periods of use at a low stroke rate, the

power tool may heat up significantly. Remove the saw blade

and let the power tool run at the maximum stroke rate for

around three minutes to cool down.

Controlling the stroke rate (GST18V‑LIB)

You can variably adjust the stroke rate of the power tool

when it is on by pressing in the on/off switch (2) to varying

extents.

Applying light pressure to the on/off switch (2) results in a

low stroke rate. Applying increasing pressure to the switch

increases the stroke rate.

The required stroke rate is dependent on the material and

the work conditions and can be determined using practical

tests.

It is recommended that you reduce the stroke rate when

placing the saw blade on the workpiece and when sawing

plastic and aluminium.

During prolonged periods of use at a low stroke rate, the

power tool may heat up significantly. Remove the saw blade

and let the power tool run at the maximum stroke rate for

around three minutes to cool down.

Temperature-dependent overload protection

In normal conditions of use, the power tool cannot be over-

loaded. If the power tool is overloaded or not kept within the

permitted battery temperature range, the speed is reduced

or the power tool switches off. At reduced speed, the power

tool will run again at full speed once the permitted battery

temperature is reached or the load is reduced. If it automat-

ically shuts down, switch the power tool off, allow the bat-

tery to cool down, then switch the power tool back on.

Working Advice

u Remove the battery from the power tool before carry-

ing out work on the power tool (e.g. maintenance,

changing tool, etc.). The battery should also be re-

moved for transport and storage. There is risk of injury

from unintentionally pressing the on/off switch.

u Switch the power tool off immediately if the saw blade

becomes blocked.

u Always use a sturdy support when working on small or

thin workpieces.

Before sawing into wood, chipboard, building materials,

etc., check for and remove any foreign objects such as nails,

screws, etc.

Plunge cutting (see figureJ)

u Plunge cuts may only be applied to soft materials,

such as wood, gypsum board, etc.

For plunge cutting, use only short saw blades. Plunge cutting

is possible only with a mitre angle of 0°.

Place the power tool so that the front edge of the base plate

(7) rests on the workpiece, without the saw blade (10)

touching the workpiece, and switch it on. On power tools

with stroke rate control, select the maximum stroke rate.

Press the power tool firmly against the workpiece and allow

the saw blade to plunge slowly into the workpiece.

As soon as the base plate (7) rests fully on the workpiece,

continue sawing along the required cutting line.

Coolant/lubricant

As the material heats up along the cutting line when cutting

metal, you should apply coolant or lubricant.

Recommendations for Optimal Handling of the Battery

Protect the battery against moisture and water.

Only store the battery within a temperature range of −20 to

50°C. Do not leave the battery in your car in the summer, for

example.

Occasionally clean the ventilation slots on the battery using a

soft brush that is clean and dry.

A significantly reduced operating time after charging indic-

ates that the battery has deteriorated and must be replaced.

Follow the instructions on correct disposal.

Maintenance and Service

Maintenance and Cleaning

u Remove the battery from the power tool before carry-

ing out work on the power tool (e.g. maintenance,

changing tool, etc.). The battery should also be re-

moved for transport and storage. There is risk of injury

from unintentionally pressing the on/off switch.

u To ensure safe and efficient operation, always keep

the power tool and the ventilation slots clean.

Clean the saw blade receptacle regularly. For this, remove

the saw blade from the power tool and lightly tap out the

power tool on a level surface.

If the power tool becomes very dirty, this can lead to serious

faults. For this reason, do not cut materials which generate

large quantities of dust from below or overhead.

1 609 92A 4TM | (04.04.2019) Bosch Power Tools

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Bosch GST 18 V-LI S Professional Manual

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