TSA 230
English
21
cutting for more than two hours a day
should wear at least a NIOSH-approved
disposable respirator.
Points to be noted with diamond and
composite cutting wheels
Object to be cut
– Must be fully supported
– Must be secured so that it cannot
roll or slip away
– Must be protected against vibration
The cutting sequence
The cutting sequence is important when
cutting openings and recesses, etc. The
last cut must always be made in such a
way that the cutting wheel cannot
become bound and so that the user is
not at risk of being injured by the part
that has been cut off or out.
If applicable, leave small ridges of uncut
material to hold the severed part in
position. These ridges can subsequently
be broken through.
A number of points must be decided
before the part is finally severed:
– How heavy is the part?
– In which direction can it move after
being severed?
– Is it under tension?
Helpers must not be put at risk of injury
when the part is broken off or out.
Cutting in several passes
N Mark cutting line (A).
N Work along the cutting line. If
corrections are necessary, always
reposition the cutting wheel, taking
care to ensure that it is not wedged.
The cutting depth per pass should
not exceed 2 cm (0.8“). Thicker
material must be cut in several
passes.
Cutting slabs
N Secure the slab (e. g. on a non-slip
surface, sandbed).
N Cut a guiding groove (A) along the
marked line.
N Cut deeper into the parting cut (B).
N Leave a ridge (C) of uncut material.
N Cut through the slab at the ends so
the material does not chip.
N Then break the slab.
N Curves must be cut in several
straight passes, taking care to
ensure that the cutting wheel does
not become wedged.
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