Bosch GWS 22 230 JH 0601882203 - Инструкция по эксплуатации - Страница 21

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Bosch Power Tools

Switching On and Off

To 

start

 the power tool, press the On/Off switch 

2

 forward 

and then down.
To 

lock-on

 the pressed On/Off switch 

2

, push the On/Off 

switch 

2

 further forward.

To 

switch off

 the power tool, release the On/Off switch 

2

, or 

when it is locked, briefly press the On/Off switch 

2

 and then 

release it.

Switch Version without Lock-on (country-specific):

To 

start

 the power tool, press the On/Off switch 

2

 forward 

and then down.
To switch off the machine, 

release

 the On/Off switch 

2

.

f

Check grinding tools before using. The grinding tool 

must be mounted properly and be able to move freely. 

Carry out a test run for at least one minute with no load. 

Do not use damaged, out-of-centre or vibrating grind-

ing tools. 

Damaged grinding tools can burst and cause in-

juries.

Restarting 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 restarting protection feature prevents uncontrolled re-

starting of the machine after an interruption in the power sup-

ply.
To 

restart the operation

, switch the On/Off switch 

2

 to the 

Off position and start the machine again.

Reduced starting current (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 reduced starting current limits the power con-

sumption when switching the tool on and enables operation 

from a 13 ampere fuse.

Note: 

When the machine runs at full speed immediately after 

switching on, the reduced starting current and the restarting 

protection have failed. The power tool should be sent imme-

diately to an after-sales service (for addresses, see section 

“After-sales Service and Customer Assistance”.

Working Advice

f

Exercise caution when cutting slots in structural walls; 

see Section “Information on Structures ”.

f

Clamp the workpiece if it does not remain stationary 

due to its own weight.

f

Do not strain the machine so heavily that it comes to a 

standstill.

f

After heavily straining the power tool, continue to run 

it at no-load for several minutes to cool down the acces-

sory.

f

Do not touch grinding and cutting discs before they 

have cooled down. 

The discs can become very hot while 

working.

f

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

Note: 

When not using for extended periods, pull the mains 

plug out of the socket outlet. When the mains plug is inserted 

and mains voltage is given, the power tool, even when 

switched off, still consumes a low amount of current.

Rough Grinding

f

Never use a cutting disc for roughing.

The best roughing results are achieved when setting the ma-

chine at an angle of 30 °  to 40 ° . Move the machine back and 

forth with moderate pressure. In this manner, the workpiece 

will not become too hot, does not discolour and no grooves 

are formed.

Flap Disc

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

can be worked.
Flap discs have a considerably higher service life, lower noise 

levels and lower sanding temperatures than conventional 

sanding sheets.

Cutting Metal

f

For cutting with bonded abrasives, always use the pro-

tection guard for cutting 13.

When cutting, work with moderate feed, adapted to the mate-

rial being cut. Do not exert pressure onto the cutting disc, tilt 

or oscillate the machine.
Do not reduce the speed of running down cutting discs by ap-

plying sideward pressure.

The machine must al-

ways work in an up-

grinding motion. Other-

wise, the danger exists 

of it being pushed 

un-

controlled

 out of the 

cut.

When cutting profiles and square bar, it is best to start at the 

smallest cross section.

Cutting Stone

f

Provide for sufficient dust extraction when cutting 

stone.

f

Wear a dust respirator.

f

The machine may be used only for dry cutting/grinding.

For cutting stone, it is best to use a diamond cutting disc.
When using the cutting guide with dust extraction protection 

guard 

24

, the vacuum cleaner must be approved for vacuum-

ing masonry dust. Suitable vacuum cleaners are available 

from Bosch.

OBJ_BUCH-777-008.book  Page 22  Wednesday, February 8, 2012  8:04 AM