Maintenance And Service - Bosch GDM 13-34 Professional Manual Original

OBJ_BUCH-936-006.book Page 9 Tuesday, September 26, 2017 12:39 PM
Cutting Marks
The 0° cutting mark (7) indicates the position of the diamond
cutting disc for right-angled cuts. The 45° cutting mark (8) in-
dicates the position of the diamond cutting disc for 45° cuts.
Starting Operation
 Observe correct mains voltage! The voltage of the
power source must agree with the voltage specified on
the nameplate of the machine. Power tools marked
with 230 V can also be operated with 220 V.
Products sold in AUS and NZ only: Use a residual current
device (RCD) with a rated residual current of 30 mA or less.
Switching On and Off
To start the machine, press the On/Off switch 1 and keep it
pressed.
To lock the pressed On/Off switch 1, press the lock-on button
2.
To switch off the machine, release the On/Off switch 1 or
when it is locked with the lock-on button 2, briefly press the
On/Off switch 1 and then release it.
 Check the diamond cutting discs before use. The dia-
mond cutting disc(s) must be mounted properly and be
able to rotate freely. Carry out a test run for at least one
minute without any load. Do not use diamond cutting
discs that are damaged, out-of-balance, or vibrate.
Damaged diamond cutting discs can rupture and lead to
injuries.
Working Advice
 Exercise caution when cutting slots in structural walls;
see Section "Information on Structures".
 Do not strain the machine so heavily that it comes to a
standstill.
 After heavily straining the power tool, continue to run
it at no-load for several minutes to cool down the acces-
sory.
 For cutting-depths greater than 20 mm in hard materi-
als, e.g., concrete, apply several worksteps so that the
motor is not overloaded.
 Clamp the workpiece if it does not remain stationary
due to its own weight.
 The machine may only be used for dry cutting.
 Diamond cutting discs become very hot during opera-
tion; do not touch them until they have cooled down.
Protect the cutting disc against impact, shock and grease. Do
not subject the cutting disc to lateral pressure.
Do not brake coasting diamond cutting discs by applying side-
ward pressure.
For cutting especially hard material, e. g., concrete with high
pebble content, the diamond cutting disc can overheat and
become damaged as a result. This is clearly indicated by
circular sparking, rotating with the diamond cutting disc.
In this case, interrupt the cutting process and allow the dia-
mond cutting disc to cool by running the machine for a short
time at maximum speed with no load.
Bosch Power Tools
Noticeably decreasing work progress and circular sparking
are indications of a diamond cutting disc that has become
dull. Briefly cutting into abrasive material (e. g. lime-sand
brick) can resharpen the disc again.
Direction of Cut (see figure D)
The machine must always work in an up-grinding motion.
Otherwise, the danger exists of it being pushed uncontrolled
out of the cut.
Parallel Guide (see figure E)
The parallel guide 21 enables exact cuts along a workpiece
edge and cutting strips of the same dimension.
Loosen wing bolt 20 and slide the scale of the parallel guide
21 through the guide in the base plate 10. Adjust the desired
cutting width as the scale setting at the respective cutting
mark 7 or 8; see Section "Cutting Marks". Tighten wing bolt
20 again.
Information on Structures
Slots in structural walls are subject to the Standard DIN 1053
Part 1, or country-specific regulations.
These regulations are to be observed under all circumstanc-
es. Before beginning work, consult the responsible structural
engineer, architect or the construction supervisor.

Maintenance and Service

Maintenance and Cleaning
 Before any work on the machine itself, pull the mains
plug.
 For safe and proper working, always keep the machine
and ventilation slots clean.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in
order to avoid a safety hazard.
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
also 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 product.
Cambodia
Robert Bosch (Cambodia) Co., Ltd
Unit 8BC, GT Tower, 08th Floor, Street 169,
Czechoslovakia Blvd, Sangkat Veal Vong
Khan 7 Makara, Phnom Penh
VAT TIN: 100 169 511
Tel.: +855 23 900 685
Tel.: +855 23 900 660
www.bosch.com.kh
English | 9
1 609 92A 41D | (26.9.17)