Instruction Manual

GS 461
English
16
spark arrester. Other states or
governmental entities/agencies, such as
the U.S. Forest Service, may have
similar requirements. Contact your local
fire agency or forest service for the laws
or regulations relating to fire protection
requirements.
For any maintenance please refer to the
maintenance chart and to the warranty
statement near the end of the instruction
manual.
Keep the chain, bar and sprocket clean;
replace worn sprockets or chains. Keep
the chain at proper tension.
Store concrete cutter in a high or locked
place, away from children.
Empty the fuel tank before storing for
longer than a few days. Store fuel only in
correctly labeled and approved
containers. Avoid direct skin contact and
do not inhale the gas vapors.
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. For proper dust
suppression, always ensure that you
have sufficient water pressure to
produce at least 22 PSI (1.5 bar) of
water flow, regardless of the water
source. The pressure and flow rate
available from the water source will
affect the actual amount of water
available for dust suppression when wet
cutting with your concrete cutter. STIHL
recommends using the highest water
flow setting on your concrete cutter
whenever possible.The water
introduced is used to cool the diamond
abrasive chain and rinse material from
the bar groove and the rest of the cutting
attachment, and for binding dust.
If the water pressure or water volume is
too low, this leads to significantly
increased wear and irreparable damage
to the cutting attachment – risk of chain
breakage and/or increased dust
exposure.
Respiratory Protection
WARNING
To reduce the risk of serious or fatal
respiratory disease or other illness, the
operator and any bystanders should
always wear a respirator that is
approved by NIOSH for the material
being cut and appropriate for worksite-
specific conditions if wet cutting at the
water pressure recommended in this
instruction manual cannot be confirmed.
The respirator must have an Assigned
Protection Factor sufficient to provide
the level of respiratory protection
needed for the material being cut and
worksite-specific conditions.
Even if wet cutting at the recommended
water pressure, 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
relating to the respirator needed for the
material you are cutting and your
worksite-specific 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 also is available
from OSHA at www.OSHA.gov.
Consult and follow any federal, state or
local laws or regulations with respect to
dry and wet cutting, including any
requirements for engineering controls,
Sample Applications
Use diamond abrasive
chain only with water.
Connect concrete cutter
to water supply network
(min. 22 PSI (1.5 bar)).