Sample Applications - Stihl TSA 230 Instruction Manual

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Sample applications

Water connection
A water attachment kit is mounted
–
on the machine for use with all types
of water supply.
A pressurized 2.6 gallons (10 liter)
–
water tank is available from STIHL
for wet cutting.
Use clean water for binding dust.
Most diamond cutting wheels are
suitable for wet cutting
Wet cut whenever feasible. It increases
the service life and cutting speed of
diamond cutting wheels.
Ensure that the cutting wheel is
generously supplied with water.
Wet cutting helps to suppress dust. The
water binds the dust. The cutting wheel
must be supplied with at least 20 fl. oz
(0.6 liters) water per minute.
Wet cutting can also reduce the energy
of reactive forces. In a pinch situation,
the water can act as a lubricant.
Composite resin wheels can be used for
dry cutting of metals or for wet or dry
cutting of concrete, stone or masonry.
Composite resin wheels designed for
dry cutting
Special procedures must be followed
when wet cutting with a composite non-
diamond wheel designed for dry cutting.
20
See the section entitled "Wet Cutting
with Abrasive Wheels" in the safety
precautions of this manual. Wet cutting
is generally not suitable for cutting
metals.
Composite resin wheels designed for
wet cutting
Adjust water flow rate
during cutting so it is suf-
ficient to bind all the dust
that occurs (at least
20 fl. oz (0.6 L/min)).
If the water flow rate is too high, the
cutting wheel may skim on the water
surface in the cut and greatly reduce
cutting performance. To avoid this, do
not exceed a water flow rate of about
135 fl. oz (4 L/min).
Use water properly:
1. Make certain water does not flow on
wheel that is not running, since a
composite wheel will absorb water
and that will affect wheel balance.
2. After finishing work, run the cutting
wheel at normal operating speed for
about 3 to 6 seconds without water
so that the remaining water is flung
off.
Respiratory protection
WARNING
If wet cutting at the recommended flow
rate is not utilized, the operator and any
bystanders should always wear a
respirator approved by NIOSH/MSHA
for the material being cut. Even if wet
cutting, an operator who is actively
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?
–
Is it properly supported to prevent
–
pinching?
Helpers must not be put at risk of injury
when the part is broken off or out.
TSA 230