Bosch GWX 18V-7 Professional Manual Original página 28

28 | English
pressure on the cutting disc and do not tilt or swing the
power tool.
Do not attempt to reduce the speed of a cutting disc coming
to a stop by applying pressure from the side.
The power tool must always work in an
up-grinding motion. Otherwise there
is a risk that it will be pushed uncon-
trolled out of the cut. For best results
when cutting profiles and rectangular
tubing, start at the smallest cross sec-
tion.
Cutting stone
For cutting stone with bonded cutting discs or dia-
u
mond cutting discs for concrete/stone, always use the
extraction guard for cutting with a cutting guide (25)
or the protective guard for cutting (10) or the protect-
ive guard for grinding (9) with a fitted cover for
cutting (13).
Provide sufficient dust extraction when cutting stone.
u
Wear a dust mask.
u
The power tool may be used only for dry cutting/grind-
u
ing.
When using the protective guard for cutting (10) , the
u
protective guard for grinding (9) or the protective
guard for grinding (9) with a fitted cover for
cutting (13) for cutting and grinding applications in
concrete or masonry, there is an increased dust load
and an increased risk of losing control of the power
tool, which can lead to kickback.
For cutting stone, it is best to use a diamond cutting disc.
When using the extraction guard for cutting with a cutting
guide (25), the dust extractor must be approved for extract-
ing stone dust. Suitable dust extractors are available from
Bosch.
Switch on the power tool and position
it with the front part of the cutting
guide on the workpiece. Move the
power tool with a moderate feed mo-
tion that is suited to the material being
machined.
When cutting especially hard materials such as concrete
with a high pebble content, the diamond cutting disc can
overheat and become damaged as a result. This is clearly in-
dicated by circular sparking, rotating with the diamond cut-
ting disc.
If this happens, stop cutting and allow the diamond cutting
disc to cool down by running the power tool for a short time
at maximum speed with no load.
If work is noticeably slower and with circular sparking, this
indicates that the diamond cutting disc has become blunt.
You can resharpen the disc by briefly cutting into abrasive
material (e.g. lime-sand brick).
1 609 92A 76P | (22.05.2023)
Cutting other materials
For cutting materials such as plastic, composite ma-
u
terials, etc. with bonded cutting discs or Carbide Multi
Wheel cutting discs, always use the protective guard
for cutting (10) or the protective guard for
grinding (9) with a fitted cover for cutting (13). You
can achieve improved dust extraction by using the ex-
traction guard with a cutting guide (25).
Working with Diamond Annular Cutters
Only use dry diamond annular cutters.
u
Always fit the hand guard (18) when working with dia-
u
mond annular cutters.
Do not place the diamond annular cutter parallel to the work-
piece. Plunge it into the workpiece at an angle and in a circu-
lar motion. This will allow you to achieve optimal cooling and
ensure a longer tool life for the diamond annular cutter.
Information on structural design
Recesses in load-bearing walls are subject to country-spe-
cific regulations. These regulations must be observed under
all circumstances. Seek advice from the responsible struc-
tural engineer, architect or construction supervisor before
starting work.
Maintenance and Service
Maintenance and Cleaning
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
To ensure safe and efficient operation, always keep
u
the power tool and the ventilation slots clean.
Store and handle the accessories carefully.
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. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you
with any questions about our products and their accessor-
ies.
In all correspondence and spare parts orders, please always
include the 10‑digit article number given on the nameplate
of the product.
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.
Bosch Power Tools