Maintenance And Service; Maintenance And Cleaning - Bosch 22-180 LVI Original Instructions Manual

OBJ_BUCH-429-005.book Page 32 Wednesday, June 4, 2008 11:55 AM
32 | English
When cutting, work with moderate feed, adapt-
ed to the material being cut. Do not exert pres-
sure onto the cutting disc, tilt or oscillate the
machine.
Do not reduce the speed of running down cut-
ting discs by applying sideward pressure.
Cutting Stone
For cutting stone, always work with the cut-
ting guide with dust extraction protection
guard 21.
The machine may be used only for dry cut-
ting/grinding.
For cutting stone, it is best to use a diamond
cutting disc. As a safety measure against jam-
ming, the cutting guide with dust extraction pro-
tection guard 21 must be used.
Operate the machine only with dust extraction
and additionally wear a dust protection mask.
The vacuum cleaner must be approved for the
extraction of masonry dust. Bosch provides suit-
able vacuum cleaners.
1 609 929 L56 | (4.6.08)
For cutting expecially hard material, e. g., con-
crete 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 al-
The machine must
low the diamond cutting disc to cool by running
always work in an
the machine for a short time at maximum speed
up-grinding mo-
with no load.
tion. Otherwise, the
Noticeable decreasing work progress and circu-
danger exists of it
lar sparking are indications of a diamond cutting
being pushed un-
disc that has become dull. Briefly cutting into
controlled out of
abrasive material (e. g. lime-sand brick) can re-
the cut.
sharpen the disc again.
When cutting pro-
files and square
Information on Structures
bar, it is best to
Slots in structural walls are subject to the
start at the smallest
Standard DIN 1053 Part 1, or country-specific
cross section.
regulations.
These regulations are to be observed under all
circumstances. 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.
In extreme working conditions, conductive
dust can accumulate in the interior of the
Switch on the ma-
machine when working with metal. The pro-
chine and place
tective insulation of the machine can be de-
the front part of graded. The use of a stationary extraction
the cutting guide
system is recommended in such cases as
on the workpiece. well as frequently blowing out the ventila-
Slide the machine
tion slots and installing a residual current
with moderate device (RCD).
feed, adapted to
Please store and handle the accessory(-ies)
the material to be
carefully.
worked.
Bosch Power Tools