Stihl TS 480i Instruction Manual page 13

Operating Instructions
WARNING
The wheel guard is adjustable. It is
extremely important that the wheel
guard is in place and set to suit the type
of work and your stance. The guard
should always be adjusted so that the
user is not endangered by particles of
the material being cut, sparks or pieces
of damaged wheels either directly or by
ricochet. Failure to follow this instruction
could result in serious or fatal injury.
WARNING
Your cut-off machine is equipped with a
wheel guard limit stop that restricts the
positioning of the wheel guard. To
reduce the risk of injury from wheel
contact and/or reactive forces and to
avoid damaging the guarding system,
never attempt to pull the adjusting lever
past the limit stop.
WARNING
Always check the wheel before use and
after unintentionally striking any object;
frequently check it during use when it is
stopped. Look for cracks and make sure
that it is undamaged and in good
condition and that no pieces have
broken off. See sections on "Abrasive
TS 480i, TS 500i
Wheels" and "Reactive Forces" in this
manual. Check the wheel guard for
cracks. If you discover any breaks or
cracks, fit a new guard before further
use.
WARNING
It is essential to determine the exact
direction of the cut before applying the
abrasive wheel to the work. Wheels are
constructed for radial pressure only.
Lateral pressure must be avoided. Hold
the cut-off machine steady. To reduce
the risk of serious or fatal injury, do not
change the direction of the cut during the
cut as this may produce a high torsional
load on the abrasive wheel and may
cause it to bind, break or shatter. A
binding of the wheel can also result in
reactive forces. See section on
"Reactive Forces."
WARNING
Do not use abrasive wheels for rough
grinding. Large bending stresses occur
during such work, which may cause
abrasive wheels to shatter or break and
result in serious or fatal injury.
WARNING
To reduce the risk of injury from
shattered abrasive wheels:
1. Do not exceed the maximum
operating speed marked on the
wheel.
2. Do not use a wheel that has been
dropped.
3. Test each new wheel immediately
after installation for approximately
one minute at maximum speed
without cutting, making sure to keep
bystanders away.
4. Do not cut any material for which the
abrasive wheel is not authorized.
5. Do not grind on the side of the
abrasive wheel.
6. Do not twist, thrust, knock or drop
the machine. This can cause
damage to the wheel.
To achieve a clean and efficient cut, pull
the abrasive wheel across the work or
move it "to and fro" in the cutting
direction. Do not use force to push the
abrasive wheel into the work.
Insert the wheel into the material only as
deep as necessary to make the cut. To
reduce the amount of dust created, do
not cut all the way through stone and
concrete materials – leave a thin piece
uncut. For most such materials, this
piece can be easily broken afterwards.
Do not cock, jam or wedge the wheel in
the cut.
Always stop the engine and be sure the
wheel has stopped rotating before
setting down the cut-off machine.
If a cut-off machine cart is used, sweep
debris from the path of the wheels, as
debris under one of the cart's wheels
may cause flexing of the abrasive wheel.
This could result in high frictional forces
and thus greatly reduce the engine
power available for the actual cutting
work. It could also damage the abrasive
wheel.
STIHL recommends the use of the cart
for longer cuts in a straight line.
English
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