Manual Bosch GWS 21-230 (page 20 of 261) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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English - 7

Cutting

When cutting, do not press, jam or

oscillate the machine. Work with

moderate feed, adapted to the ma-

terial being machined.

Do not reduce the speed of running

down cutting discs by applying

sideward pressure.

The direction in

which the cutting is

performed is impor-

tant.

The machine must

always work in an

up-grinding motion.

Therefore, never

move the machine in

the other direction!

Otherwise, the dan-

ger exists of it being

pushed uncon-

trolled out of the cut.

Grinder Stand

With the grinder stand 28 (accessory), work-

pieces can be cut at angles of 0 to 45° at the

same lengths.

The safety notes and operating instructions in the

respective operating instructions manual of the

angle grinder are to be strictly observed. Use only

original Bosch grinder stands.

Cutting Stone

■ The machine must be used only for dry

cutting/grinding.

It is best to use a dia-

mond cutting disc. As

a safety measure

against jamming, use

the cutting guide 25

with the special dust

extraction protection

guard.

Operate the machine with dust extraction only. In

addition, wear a dust mask.

The vacuum cleaner

must be approved for

the extraction of ma-

sonry dust.

Bosch provides suita-

ble vacuum cleaners.

Switch on the ma-

chine and place the

front part of the cut-

ting guide on the

workpiece.

Slide the machine with moderate feed, adapted

to the material to be worked (Figure).

For cutting especially hard material, e. g., con-

crete with high pebble content, the diamond cut-

ting disc can overheat and become damaged as

a result. This is clearly indicated by circular spark-

ing, rotating with the diamond cutting disc.

In this case, interrupt the cutting process and al-

low the diamond cutting disc to cool by running

freely at no-load speed for a short time.

Noticeable decreasing work progress and circu-

lar sparking are indications of a diamond cutting

disc that has become dull. Briefly cutting into

abrasive material (e. g., lime-sand brick) can re-

sharpen the disc.

1 609 929 R35.book Seite 7 Mittwoch, 13. Februar 2008 1:16 13

21 • 1 609 929 R35 • 03.11

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Bosch GWS 21-230 Manual

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