Manual Bosch GCR 180 Professional (page 12 of 128) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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12 | English

1 609 92A 0PW | (31.10.14) Bosch Power Tools

Fasten the drill stand (with drill inserted) using anchors or

vacuum so that the mounted core bit is aligned with the

marked dimensions.

Fastening with Anchor (see figure B)

For fastening of the drill stand to brickwork or concrete with

anchor (accessory), drill a separate anchor hole.

The following dimensions apply for the anchor hole:

Insert a concrete hammer-drive anchor or a brickwork anchor

16. Screw the quick-clamping spindle 17 into the anchor.

Position the drill stand, attach a washer, and then screw to-

gether with the wing nut 18. After levelling (see “Levelling”),

tighten the wing nut using an open-end spanner, size 27 mm.

Fastening with Vacuum (Accessory)

To fasten the drill stand with vacuum, you require a conven-

tional vacuum pump and a Bosch vacuum set (accessory).

The vacuum pump must meet the following minimum require-

ments:

The surface must be smooth and flat in order to fasten with

vacuum. Use on plaster or brickwork is not permitted.

Once the vacuum connection has been established, apply the

levelling screws 6 lightly to the surface so that the drill stand

is in a rigid position and the sealing ring relaxes slightly. Oth-

erwise the drill stand will sit very softly on the sealing ring.

Read and observe the operating instructions of the vacuum

pump and Bosch vacuum set in order to connect them.

 The safety and operating instructions for the vacuum

pump and vacuum set are to be strictly observed!

Levelling (does not apply for fastening with vacuum)

Turn the levelling screws 6 in or out individually until the spirit

level 14 on the drill (when mounting vertically) or the spirit

level 15 on the drill (when mounting horizontally) is precisely

aligned.

Now fix the drill stand firmly using anchor attachment.

Operation

 Disconnect the plug from the power source before

making any adjustments or changing accessories.

Starting drills accidentally is the cause of some accidents.

 After each adjustment on the drill stand, firmly retight-

en all screws.

Drilling-angle Adjustment

Loosen the lower screw 8 of the drilling-angle adjustment

using an open-end spanner (size 17 mm) and take it off.

Loosen the upper screw 5 using an open-end spanner (size

17 mm).

Loosen the clamping nut 11 using an open-end spanner (size

24 mm). Set the drill stand to the required drilling angle.

Retighten the clamping nut 11 using the open-end spanner.

Tighten the upper screw 5 using an open-end spanner (size

17 mm).

 The drill stand must not be inserted until the clamping

nut 11 and screw 5 of the angle adjustment have been

retightened.

After drilling, put the drilling column 4 back in the vertical po-

sition in reverse order (drilling angle of 0°). To do so, you have

to insert the lower screw 8 again and tighten it using an open-

end spanner (size 17 mm).

Water Extraction

You require a water collection ring and a wet/dry vacuum

cleaner (both accessories) to collect the water escaping from

the bore hole during wet drilling.

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

tended for use with the drill stand for diamond drills GCR 180

and the diamond drill GDB 180 WE.

Mounting the Water Collection Ring (see figure C)

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

ing lid.

Slide the tension spring 19 all the way into the gap between

the bottom plate 9 and the drilling column 4. 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.

Working Advice

 For drilling, observe the operating instructions of your

diamond drill.

To drill, loosen the parking brake 13 until the star handle 1 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 1 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.

Clearance from anchor hole–centre of the intended bore

hole

optimal 210 mm

possible 200–300 mm

Diameter Depth

Brickwork 20 mm 85 mm

Concrete 16 mm 50 mm

Volume flow: 6 m

Vacuum at least: 80 % (–800 mbar)

OBJ_BUCH-2243-001.book Page 12 Friday, October 31, 2014 12:11 PM

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Bosch GCR 180 Professional Manual

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