Manual Bosch GST 12V-70 Professional (page 17 of 259) (All languages)

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plication tools or is poorly maintained, the vibration level

and noise emission value may differ. This may significantly

increase the vibration and noise emissions over the total

working period.

To estimate vibration and noise emissions accurately, the

times when the tool is switched off or when it is running but

not actually being used should also be taken into account.

This may significantly reduce vibration and noise emissions

over the total working period.

Implement additional safety measures to protect the oper-

ator from the effects of vibration, such as servicing the

power tool and application tools, keeping their hands warm,

and organising workflows correctly.

Assembly

uRemove 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.

Battery Charging (see figureA)

uUse only the chargers listed in the technical data. Only

these chargers are matched to the lithium-ion battery of

your power tool.

Note: The battery is supplied partially charged. To ensure

full battery capacity, fully charge the battery in the charger

before using your power tool for the first time.

The lithium-ion battery can be charged at any time without

reducing its service life. Interrupting the charging process

does not damage the battery.

The lithium-ion battery is protected against deep discharge

by the "Electronic Cell Protection (ECP)". When the battery

is discharged, the power tool is switched off by means of a

protective circuit: The application tool no longer rotates.

uDo not continue to press the On/Off switch after the

power tool has automatically switched off. The battery

can be damaged.

To remove the battery (1), press the release button (2) and

pull the battery downwards out of the power tool. Do not

use force to do this.

Battery charge indicator

The three green LEDs of the battery charge indicator (4) in-

dicate the state of charge of the battery (1). The battery

charge indicator only lights up for five seconds after start-

up.

LED Capacity

Continuous lighting 3x green ≥2/3

Continuous lighting 2x green ≥1/3

Continuous lighting 1x green <1/3

Flashing light 1x green Reserve

Flashing light 3x green Empty

If no LED lights up after switching the power tool on, then

the battery is defective and must be replaced.

Inserting/changing the saw blade

uWhen fitting or changing the saw blade, wear protect-

ive gloves. Blades are sharp and can become hot when

used for prolonged periods of time.

Selecting the saw blade

You will find an overview of recommended saw blades at the

end of these operating instructions. Only use saw blades

with single lug shank (T shank). The saw blade should not be

longer than required for the intended cut.

Use a narrow saw blade when sawing tight curves.

Inserting the saw blade (seefigure B)

uClean the shaft on the saw blade before inserting it.

Adirty shaft cannot be securely fixed in place.

Push the saw blade (13), with the teeth in the cutting direc-

tion, into the saw blade receptacle (11) until it clicks into

place. The SDS lever (20) automatically springs back and

the saw blade is locked in place. Do not push the lever (20)

back by hand as you could damage the power tool.

Make sure when inserting the saw blade that the back of the

saw blade is in the groove on the guide roller (10).

uCheck that the saw blade is seated securely. A loose

saw blade can fall out and lead to injuries.

Ejecting the saw blade (seefigure C)

uWhen ejecting the saw blade, hold the power tool in

such a manner that no persons or animals can be in-

jured by the ejected saw blade.

Turn the SDS lever (20) as far as it will go in the direction of

the shock protection guard (21). The saw blade is released

and ejected.

Glide shoe (seefigureD)

When machining sensitive surfaces, you can place the glide

shoe (17) on the base plate (9) in order to prevent the sur-

face from being scratched.

To position the glide shoe (17), hook it to the front of the

base plate (9), push it up at the back and allow it to click into

place.

Anti-splinter guard (seefigureE)

The anti-splinter guard (18) (accessory) can prevent splin-

tering of the surface while sawing wood. The anti-splinter

guard can only be used with certain saw blade types and only

at a cutting angle of 0°.

Slide the anti-splinter guard (18) into the base plate (9)

from the front.

When using the glide shoe (17), the anti-splinter guard (18)

is inserted into the glide shoe rather than the base plate (9).

Dust/Chip Extraction

The dust from materials such as lead paint, some types of

wood, minerals and metal can be harmful to human health.

Touching or breathing in this dust can trigger allergic reac-

tions and/or cause respiratory illnesses in the user or in

people in the near vicinity.

Bosch Power Tools 1 609 92A 85Y | (15.07.2022)

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Bosch GST 12V-70 Professional Manual

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