surrounding objects. Make sure that
"run-off" will not cause any type of
environmental damage or come into
contact with electrical sources.
WARNING
STIHL recommends the use of only
STIHL-branded cutting wheels on your
cut-off machine. Use of non-STIHL
cutting wheels may be extremely
dangerous. See the chapter "Reducing
the Risk of Kickback Injury" in this
instruction manual.
WARNING
To reduce the risk of electrocution to you
or bystanders, do not allow water or
sludge to contact live electric wires or
other electrical power sources.
WARNING
To reduce the risk of injury from wheel
breakage when wet cutting with any
composite wheel:
1. Make certain water does not flow on
a wheel that is not running, since the
wheel will absorb water, which will
affect wheel balance.
2. Be certain water is applied to both
sides of wheel, since uneven
distribution can cause "one sided"
wear.
3. 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.
TS 480i, TS 500i
Respiratory Protection
WARNING
The cutting wheel must be supplied with
at least 20 fl. oz. (0.6 liters) of water per
minute for proper dust suppression.
Inhalation of airborne crystalline silica
can cause serious or fatal injury or
illness, such as kidney disease and
respiratory diseases, including silicosis
and lung cancer.
To reduce the risk of serious or fatal
respiratory disease or other illness when
this flow rate cannot be achieved,
maintained or confirmed, the operator
and any bystanders should always wear
a NIOSH-approved respirator that is
rated for the material being cut and
appropriate for worksite-specific
conditions. The respirator must have an
Assigned Protection Factor sufficient to
provide the level of respiratory
protection needed for worksite-specific
conditions and the material being cut.
Even if wet cutting at the recommended
flow rate, an operator who is working
with the machine for more than two
hours in one day, along with any
bystanders, should always wear a
NIOSH-approved respirator that is rated
for the material being cut and
appropriate for worksite-specific
conditions.
Consult your employer for information
regarding worksite conditions and the
material being cut. Your employer is
likely to have in place an OSHA-required
respiratory protection program and can
provide information regarding the type
and level of respiratory protection
needed for your worksite. Information is
also available from OSHA at
www.OSHA.gov.
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; and
Must be protected against vibration
–
and movement.
The cutting sequence
There are many ways to cut materials
and objects with a cut-off machine. The
operator and/or his supervisor, with
knowledge of the job site conditions and
requirements, always must exercise
good judgment and discretion in
determining how to safely complete a
cutting task. The methods described in
the following sections, while constituting
proven techniques, are illustrative only
and are not meant to substitute for the
judgment of the experienced workmen
with direct knowledge of on-site
conditions.
However, the cutting sequence is
important. The last cut must always be
made in such a way that the cutting
wheel cannot become pinched, bound
or clamped and so that the operator, co-
workers and bystanders are not at risk of
being injured by a falling part that has
been cut off or out, or by cutting debris or
sparks.
English
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