Stihl TS 440 Instruction Manual page 15

any cut requiring the top of the wheel to
be exposed. STIHL recommends
always guarding as much of the top of
the wheel as possible and not opening
the guard any further than necessary to
make or complete a cut.
The recommended guard position for
use of the TS 440, whenever possible, is
fully forward to the forward stop position,
which will then cover the top of the
abrasive cutting wheel down to the point
roughly midway between 9:00 and 12:00
(when viewing the wheel from the fan
wheel housing side of the machine).
WARNING
To reduce the risk of severe injury or
death, always shut off the machine and
allow the wheel to stop before
attempting to adjust the guard. After
shutting off the machine, the wheel will
continue to rotate for a few seconds
before the brake engages. Never
attempt to adjust the guard while the
engine is running or the wheel is still
rotating.
WARNING
Always check the wheel before use and
after unintentionally striking any object;
check it frequently during use when the
engine is turned off. Look for cracks and
other damage, such as cracked, missing
or broken segments on a diamond
cutting wheel. Make sure that the wheel
is undamaged and in good condition,
that it is not cracked, that no pieces have
broken off and that no segments are
loose, missing or damaged. See the
sections "Abrasive Cutting Wheels" and
"Reactive Forces" in this manual. Check
the wheel guard for cracks or other
TS 440
damage. If you discover any breaks,
cracks or other damage, mount a new
guard before further use.
WARNING
It is essential to determine the exact
direction of the cut before applying the
abrasive cutting wheel to the workpiece.
Wheels are constructed for radial
pressure only. To reduce the risk of
wheel breakage and severe personal
injury or death, avoid putting lateral
pressure (side loading) on the wheel.
Hold the cut-off machine steady. Work
along a straight cutting line. Do not
attempt to correct the position or
direction of a cut by tilting or twisting the
machine or cutting wheel. If corrections
are necessary, always lift the machine
and reposition the cutting wheel, taking
care to ensure that it is not wedged,
tilted, twisted or side loaded. Attempting
to change the position or direction of a
cut while the wheel is in the cut can bind
the wheel. This can lead to kickback,
other reactive forces or a shattered
composite cutting wheel, which could
result in severe or fatal personal injury.
See the section "Reactive Forces" in this
manual.
WARNING
Use your cut-off machine for cutting
only. It is not designed for prying,
shoveling or moving any objects.
Do not use abrasive cutting wheels for
rough grinding using the sides of the
wheel. Large bending stresses occur
during such work, which may result in
reactive forces, including kickback, or
cause the wheel to shatter or break,
resulting in serious or fatal injury.
WARNING
To reduce the risk of injury from
damaged abrasive cutting wheels:
1. Do not use a wheel on your machine
that has a rated operating speed
lower than the maximum operating
speed of you machine's spindle, as
specified in this instruction manual.
2. Do not use a wheel that has been
dropped or damaged.
3. Run each new wheel immediately
after installation for approximately
one minute at maximum speed
without cutting, making sure to keep
bystanders away. If the wheel
wobbles or otherwise shows
operational problems, do not use it.
4. Do not cut any material for which the
wheel is not authorized.
5. Do not grind using the sides of the
wheel.
6. Do not twist, thrust, knock or drop
the machine. This can cause
damage to the wheel.
7. Do not transport the cut-off machine
with the cutting wheel mounted.
To achieve a clean and efficient cut,
maintain a firm grip and apply the cutting
wheel to workpiece, allowing the cutting
wheel to engage the material naturally.
Don't force or jam the cutting wheel into
the workpiece. The machine will have a
natural tendency to move away from the
operator. Slowly pulling the machine
back through the cut or kerf toward the
operator and then allowing it to move
forward again will improve cutting
performance.
English
13