Stihl TS 440 Manual De Instrucciones página 24

English
Consult your employer for information
regarding the material you are cutting
and your worksite conditions. 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.
Before wet cutting, make sure water will
not damage the floor, building or other
property, the material being cut or any
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 the
TS 440. 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.
Dry Cutting with Composite Cutting
Wheels
STIHL has developed a composite
cutting wheel suitable for dry cutting
metal with the TS 440.
22
STIHL has not developed a composite
cutting wheel for cutting non-metal
materials with the TS 440, or for wet
cutting. Do not use a composite cutting
wheel on the TS 440 when wet cutting.
Composite cutting wheels designed for
use on higher speed machines will
perform poorly on the TS 440.
WARNING
Use only diamond cutting wheels for wet
cutting with the TS 440. Wet cutting with
a composite cutting wheel may increase
the risk of wheel breakage, resulting in
severe or fatal injury.
Respiratory Protection
WARNING
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. The cutting wheel must
be supplied with at least 20 fl. oz.
(0.6 liters) of water per minute for proper
dust suppression. 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
TS 440