Manual Bosch GWS 24-180 JH Professional (page 22 of 301) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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22 | English

Operation

Start-up

u Pay attention to the mains voltage. The voltage of the

power source must match the voltage specified on the

rating plate of the power tool. Power tools marked

with 230V can also be operated with 220V.

When operating the power tool using a mobile generator that

does not have sufficient reserve capacity or an adequate

voltage control system with inrush current boost converter,

loss of performance or atypical behaviour may occur upon

switch-on.

Please check the suitability of the power generator you are

using, particularly with regard to the mains voltage and fre-

quency.

u Products that are only sold in AUS and NZ: Use a resid-

ual current device (RCD) with a nominal residual current

of 30 mA or less.

Switching on/off

To start the power tool, push the on/off switch (2) forward

and then press it down.

To lock the on/off switch (2) in position, push the on/off

switch (2) further forward.

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

or, if the switch is locked, briefly press the on/off switch (2)

and then release it.

Switch without locking mechanism (country-specific):

To start the power tool, push the on/off switch (2) forward

and then press it down.

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

u Always check abrasive tools before using them. The

abrasive tool must be fitted properly and be able to

move freely. Carry out a test run for at least one

minute with no load. Do not use abrasive tools that are

damaged, run untrue or vibrate during use. Damaged

abrasive tools can burst apart and cause injuries.

Restart protection

(GWS22-180JH / GWS22-230JH / GWS24-180JH /

GWS24-230JH / GWS26-180JH / GWS26-230JH)

The restart protection feature prevents the power tool from

uncontrolled starting after the power supply to it has been

interrupted.

To restart the tool, set the on/off switch (2) to the "off" posi-

tion and then switch the power tool on again.

Starting current limitation

(GWS22-180JH / GWS22-230JH / GWS24-180JH /

GWS24-230JH / GWS26-180JH / GWS26-230JH)

The electronic starting current limitation feature restricts the

power of the power tool when it is switched on and enables

operation using a 16 A fuse.

Note: If the power tool runs at full speed immediately after

being switched on, this means that the starting current limit-

ation and restarting protection mechanisms have failed. The

power tool must be sent to the after-sales service immedi-

ately; see the "After-Sales Service and Application Service"

section for addresses.

Working Advice

u Pull the plug out of the socket before carrying out any

work on the power tool.

u Exercise caution when cutting slots in structural walls;

see the "Information on structural design" section.

u Clamp the workpiece if it is not secure under its own

weight.

u Do not load the power tool so heavily that it comes to a

stop.

u If the power tool has been subjected to a heavy load,

continue to run it at no-load for several minutes to

cool down the accessory.

u Do not touch grinding and cutting discs until they have

cooled down. The discs can become very hot while work-

ing.

u Do not use the power tool with a cut-off stand.

Note: Remove the plug from the socket when not using the

tool. When the power tool is plugged in, mains voltage is

present and the tool consumes a small amount of electricity,

even if switched off.

Rough grinding

u Never use cutting discs for rough grinding.

The best rough grinding results are achieved with a set angle

of 30° to 40°. Move the power tool back and forth with mod-

erate pressure. This will ensure that the workpiece does not

become too hot or discolour and that grooves are not

formed.

Flap Disc

With the flap disc (accessory), curved surfaces and profiles

can be worked. Flap discs have a considerably higher ser-

vice life, lower noise levels and lower sanding temperatures

than conventional sanding sheets.

Cutting Metal

u Always use the protective guard for cutting (13) when

cutting bonded abrasives.

When carrying out abrasive cutting, use a moderate feed

that is suited to the material being machined. Do not exert

pressure on the cutting disc and do not tilt or swing the

power tool.

Do not attempt to reduce the speed of a cutting disc coming

to a stop by applying pressure from the side.

The power tool must always

work in an up-grinding mo-

tion. Otherwise, there is a

risk that it will be pushed

uncontrolled out of the cut.

For best results when cut-

ting profiles and rectangular

tubing, start at the smallest

cross section.

1 609 92A 433 | (08.05.2019) Bosch Power Tools

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Bosch GWS 24-180 JH Professional Manual

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