Stihl TS 500i Manual De Instrucciones página 16

English
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 the workpiece, allowing the
cutting wheel to engage the material
naturally. Don't force or jam the cutting
wheel into the workpiece. When cutting
with the bottom of the abrasive wheel,
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.
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,
concrete and similar materials – leave a
thin layer of material uncut. This layer
can be easily broken afterwards using a
hammer or other appropriate tool.
Always wear properly rated eye
protection when breaking any uncut
piece or layer. Do not cock, jam or
wedge the wheel in the cut, as this may
14
result in reactive forces or a damaged or
broken wheel and the possibility of
severe or fatal personal injury.
Release the pressure on the cut-off
machine as you reach the end of the cut.
Too much pressure may cause the
operator to lose control of the cut-off
machine when the abrasive cutting
wheel completes the cut. The abrasive
cutting wheel may contact the operator
or strike some foreign object and break
or shatter.
Always shut off the engine and be sure
the wheel has stopped rotating before
setting the cut-off machine down.
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.
Reactive Forces Including Kickback
WARNING
Reactive forces may
occur at any time the cut-
ting wheel on a cut-off
machine is rotating.
The powerful forces used to cut through
a workpiece can be reversed and work
against the operator. If the wheel is
slowed or stopped sufficiently by
frictional contact with any solid object or
by a pinch or binding, reactive forces
can occur instantly and may result in the
operator losing control of the cut-off
machine, which, in turn, may result in
serious or fatal injury. An understanding
of the causes of these reactive forces
will help you avoid them and loss of
control.
Reactive forces are exerted in a
direction opposite to the direction in
which the wheel is moving at the point of
contact or of the pinching/binding. If the
wheel is slowed by frictional contact with
a solid object, the resulting reactive
forces are normally moderate and
readily controllable by an operator who
is holding the machine properly. If,
however, the wheel is abruptly slowed or
stopped by a severe pinch or bind, the
reactive forces may be substantially
greater. The greater the force
generated, the more difficult it will be for
the operator to control the cut-off
machine. Loss of control can result in
severe personal injury or death.
Pull-away, Climbing, Pinching and
Rotational Kickback Forces
The most common reactive forces are
pull-away and climbing. If the contact is
at the bottom of the wheel, a cut-off
machine will try to pull away from the
operator (pull-away). If the contact is at
TS 480i, TS 500i