Manual Bosch GCR 350 Professional (page 13 of 132) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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English | 13

Bosch Power Tools 1 609 92A 0VZ | (30.10.14)

The water collection ring (see “Accessories”, page 13) is in-

tended for use with the drill stand for diamond drills GCR 350

and the diamond drill GDB 350 WE.

Mounting the Water Collection Ring (see figure F)

Cut an opening for the required drilling diameter in the seal-

ing lid.

Slide the tension spring 24 all the way into the gap between

the bottom plate 8 and the drilling column 10. Ensure that the

angled part of the tension spring faces downwards.

Bring the water collection ring into position and place the ten-

sion spring on the contact points on the water collection ring.

(The lugs on the ends of the tension spring are used to pull the

tension spring upwards.)

The tensioning force of the spring will press the water collec-

tion ring with its seal onto the surface and together with the

vacuum of the wet/dry vacuum cleaner will prevent water

from escaping.

The water collection ring can be turned inside its tension ring

in order to put the vacuum connection in a required position

(e.g. to optimise the water drainage when drilling holes hori-

zontally). To do so, open the lock of the tension ring on the

water collection ring, turn the water collection ring as re-

quired and close the lock again.

Working Advice

 For drilling, observe the operating instructions of your

diamond drill.

To drill, loosen the parking brake 5 until the star handle 4 is

easy to move. When doing so, hold the star handle in place in

order to prevent the drill from sliding down in an uncontrolled

manner.

Use the star handle 4 to turn the drill down to the required

drilling depth.

Then, turn the crank back until the core bit is completely visible.

To achieve the maximum possible working length, you have to

remove the drill core as soon as it completely fills the core bit.

Then feed the core bit back into the bore hole and drill to the

maximum depth.

Maintenance and Service

Maintenance and Cleaning

Always keep the rack 11 and the guide surfaces of the der

drilling column 10 clean.

Readjusting the Guide Rollers (see figure G)

Over time the guide rollers can wear down, resulting in play

between the guide rollers and the drilling column. To elimi-

nate this play, you have to readjust both guide rollers on the

side with the parking brake 5.

Loosen both hex nuts 25 using a socket wrench (size 17 mm).

Then tighten the two internal hex screws 26 evenly until the

play is minimised.

Retighten both hex nuts 25.

Accessories

Spacer plate 350 mm (GDB 350 WE). . . . . . 2 608 550 628

Machine adapter (GDB 2500 WE) . . . . . . . . 2 608 550 622

Water collection ring (GCR 350) . . . . . . . . . . 2 608 550 620

Sealing lid for water collection ring

(GCR 350) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 609 390 391

Fastening set:

– for concrete . . . . . . . . . . . . . . . . . . . . . . . . 2 608 002 000

– for brickwork . . . . . . . . . . . . . . . . . . . . . . . 2 607 000 745

Anchor set for concrete . . . . . . . . . . . . . . . . . 2 608 002 001

Vacuum set . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 608 550 623

Rubber seal for vacuum set (GCR 350) . . . . 2 608 550 626

Quick-clamping column . . . . . . . . . . . . . . . . . 2 608 598 111

Wet/dry vacuum cleaner GAS 35 M AFC

Wet/dry vacuum cleaner GAS 55 M AFC

After-sales Service and Application Service

Our after-sales service responds to your questions concern-

ing maintenance and repair of your product as well as spare

parts. Exploded views and information on spare parts can al-

so be found under:

www.bosch-pt.com

Bosch’s application service team will gladly answer questions

concerning our products and their accessories.

In all correspondence and spare parts orders, please always

include the 10-digit article number given on the nameplate of

the drill stand.

Great Britain

Robert Bosch Ltd. (B.S.C.)

P.O. Box 98

Broadwater Park

North Orbital Road

Denham

Uxbridge

UB 9 5HJ

At www.bosch-pt.co.uk you can order spare parts or arrange

the collection of a product in need of servicing or repair.

Tel. Service: (0344) 7360109

E-Mail: boschservicecentre@bosch.com

Ireland

Origo Ltd.

Unit 23 Magna Drive

Magna Business Park

City West

Dublin 24

Tel. Service: (01) 4666700

Fax: (01) 4666888

OBJ_BUCH-2255-001.book Page 13 Thursday, October 30, 2014 1:59 PM

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Bosch GCR 350 Professional Manual

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