Manual Bosch GWS 24-180 JH Professional (page 20 of 301) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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20 | English

Wear hearing protection

Total vibration values a

(triax vector sum) and uncertainty K

determined according to EN60745-2-3:

Surface grinding (roughing):

=7.5 m/s

, K=1.5 m/s

Grinding with abrasive disc:

=4.5 m/s

, K=1.5 m/s

The vibration level given in these instructions has been

measured in accordance with a standardised measuring pro-

cedure and may be used to compare power tools. It can also

be used for a preliminary estimation of exposure to vibra-

tion.

The stated vibration level applies to the main applications of

the power tool. However, if the power tool is used for differ-

ent applications, with different application tools or poorly

maintained, the vibration level may differ. This can signific-

antly increase the exposure to vibration over the total work-

ing period.

To estimate the exposure to vibration accurately, the times

when the tool is switched off or when it is running but not ac-

tually being used should also be taken into account. This can

significantly reduce the exposure to vibration 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 the hands warm,

and organising workflows correctly.

Fitting

Fitting protective equipment

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

work on the power tool.

Note: If the grinding disc breaks during operation or the

holding fixtures on the protective guard/power tool become

damaged, the power tool must be sent to the after-sales ser-

vice immediately; see the "After-Sales Service and Applica-

tion Service" section for addresses.

Protective guard for grinding

Place the protective guard (5) on the spindle collar. Adjust

the position of the protective guard (5) to the requirements

of the operation and lock the protective guard (5) with the

locking screw (6).

u Adjust the protective guard (5) such that sparking in

the direction of the operator is prevented.

Protective guard for cutting

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

cutting bonded abrasives.

u Provide sufficient dust extraction when cutting stone.

The protective guard for cutting (13) is fitted in the same

way as the protective guard for grinding (5).

Extraction guard for cutting with a guide block

The extraction guard for cutting with a guide block (21) is fit-

ted in the same way as the protective guard for grinding (5).

Side handle

u Do not operate your power tool without the side

handle (3).

Screw the side handle (3) on the left or right of the machine

head depending on how your are working.

Hand guard

u Always fit the hand guard (15) when working with the

rubber sanding pad (17) or with the cup brush/disc

brush/flap disc.

Attach the hand guard (15) to the side handle (3).

Fitting the abrasive tools

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

work on the power tool.

u Do not touch grinding and cutting discs until they have

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

ing.

Clean the grinding spindle (4) and all the parts to be fitted.

Lock the grinding spindle with the spindle lock button (1)

before clamping and releasing the abrasive tools.

u Do not press the spindle lock button while the grind-

ing spindle is moving. The power tool may become dam-

aged if you do this.

Grinding/cutting disc

Pay attention to the dimensions of the abrasive tools. The

diameter of the hole must match that of the hub flange. Do

not use an adapter or reducer.

When using diamond cutting discs, make sure that the arrow

indicating the direction of rotation on the diamond cutting

disc matches the direction of rotation of the power tool (see

the direction of rotation arrow on the machine head).

See the graphics page for fitting instructions.

To fasten the grinding/cutting disc, screw on the clamping

nut (9) and tighten with the two-pin spanner; see the "Quick-

clamping nut" section.

u After fitting the abrasive tool, check that the abrasive

tool is fitted correctly and can turn freely before

switching on the power tool. Make sure that the abras-

ive tool does not brush against the protective guard or

other parts.

A plastic part (O-ring) is fitted around the cent-

ring collar in the hub flange (7). If the O-ring

is missing or damaged, the hub flange (7)

must be replaced before operation can re-

sume.

Flap disc

u Always fit the hand guard (15) when working with the

flap disc.

Rubber sanding pad

u Always fit the hand guard (15) when working with the

rubber sanding pad (17).

See the graphics page for fitting instructions.

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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