Manual Bosch PWS 850-125 (page 23 of 145) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Portuguese, Spanish, Norwegian, Finnish)

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English | 23

Bosch Power Tools 1 609 92A 1ZT | (17.5.16)

Protection Guard for Grinding

Place the protection guard 6 onto

the spindle collar of the machine

until the encoding keys of the pro-

tection guard agree with the spin-

dle collar. Press and hold the re-

lease lever 1 while doing this.

Press the protection guard 6 onto

the spindle collar until the shoul-

der of the protection guard is

seated against the flange of the

machine, and turn the protection

guard until it can clearly be heard

to engage.

Adjust the position of the protec-

tion guard 6 to the requirements

of the work process. For this, press the release lever 1 up-

ward and turn the protection guard 6 to the required position.

 Always adjust the protection guard 6 in such a manner

that all 3 red cams of release lever 1 engage into the

corresponding notches of the protection guard 6.

 Adjust the protection guard 6 in such a manner that

sparking is prevented in the direction of the operator.

 The protection guard 6 may be turned only upon actua-

tion of the release lever 1! Otherwise the power tool

may not continue to be used under any circumstances

and must be taken to an after-sales service agent.

Note: The encoding keys on the protection guard 6 ensure

that only a protection guard that fits the machine type can be

mounted.

Protection Guard for Cutting

 For cutting with bonded abrasives, always use the pro-

tection guard for cutting 10.

 Provide for sufficient dust extraction when cutting

stone.

The protection guard for cutting 10 is mounted in the same

manner as the protection guard for grinding 6.

Cutting Guide with Dust Extraction Protection Guard

The cutting guide with dust extraction protection guard 17 is

mounted in the same manner as the protection guard for

grinding 6.

Auxiliary Handle

 Operate your machine only with the auxiliary handle 4.

Screw the auxiliary handle 4 on the right or left of the machine

head depending on the working method.

Hand Guard

 For operations with the rubber sanding plate 13 or with

the cup brush/wheel brush/flap disc, always mount the

hand guard 12.

The hand guard 12 is fastened with the auxiliary handle 4.

Mounting the Grinding Tools

 Before any work on the machine itself, pull the mains

plug.

 Do not touch grinding and cutting discs before they

have cooled down. The discs can become very hot while

working.

Clean the grinder spindle 5 and all parts to be mounted.

For clamping and loosening the grinding tools, lock the grind-

er spindle with the spindle lock button 2.

 Actuate the spindle lock button only when the grinder

spindle is at a standstill. Otherwise, the machine may be-

come damaged.

Grinding/Cutting Disc

Pay attention to the dimensions of the grinding tools. The

mounting hole diameter must fit the mounting flange without

play. Do not use reducers or adapters.

When using diamond cutting discs, pay attention that the di-

rection-of-rotation arrow on the diamond cutting disc and the

direction of rotation of the machine (see direction-of-rotation

arrow on the machine head) agree.

See graphics page for the mounting sequence.

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

9 and tighten with the two-hole spanner.

 After mounting the grinding tool and before switching

on, check that the grinding tool is correctly mounted

and that it can turn freely. Make sure that the grinding

tool does not graze against the protection guard or oth-

er parts.

Flap Disc

 For operations with the flap disc, always mount the

hand guard 12.

Rubber Sanding Plate

 For operations with the rubber sanding plate 13, al-

ways mount the hand guard 12.

See graphics page for the mounting sequence.

Screw on the round nut 15 and tighten with the two-pin span-

ner.

Cup Brush/Disc Brush

 For operations with the cup brush/wheel brush, always

mount the hand guard 12.

See graphics page for the mounting sequence.

The cup brush/disc brush must be able to be screwed onto

the grinder spindle until it rests firmly against the grinder

spindle flange at the end of the grinder spindle threads. Tight-

en the cup brush/disc brush with an open-end spanner.

Approved Grinding Tools

All grinding tools mentioned in these operating instructions

can be used.

The permissible speed [min

-1

] or the circumferential speed

[m/s] of the grinding tools used must at least match the values

given in the table.

Therefore, observe the permissible rotational/circumferen-

tial speed on the label of the grinding tool.

OBJ_BUCH-1824-005.book Page 23 Tuesday, May 17, 2016 8:55 AM

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Bosch PWS 850-125 Manual

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