Stihl TS 440 Manual De Instrucciones página 17

with the operator. Always stand outside
of the plane of the cutting wheel when
using a cut-off machine, including the
TS 440, and do not crouch over the
wheel.
Always maintain at least a 45° angle
between the top of the wheel and the
operator's head, neck and body to
reduce the risk of severe personal injury
or death in the event of a kickback,
particulary when the guard has been
opened to expose the top of the wheel.
WARNING
The primary device intended to reduce
the risk of injury from kickback on the
TS 440 is the wheel guard. The wheel
guard also reduces the risk of injury from
shattered wheels, thrown segments,
sparks and cutting debris. The brake is
intended to substitute for the wheel
guard in kickback situations when the
guard has been "opened," exposing the
top of the wheel. The TS 440 should be
used with the guard in this position only
when necessary to make a cut as, for
example, when accessing the underside
of a pipe in a trench. The guard should
be returned to the forward stop position
(covering the top of the wheel down to
the point on the cutting wheel roughly
midway between 9:00 and 12:00 when
viewing the wheel from the fan wheel
housing side of the machine) as soon as
the cut requiring a more open guard
position has been completed. Make this
adjustment sooner if it is necessary to
protect the operator from thrown debris
generated during cutting.
The guard should not be opened to
expose the top portion of the wheel if
doing so means that cutting debris or
TS 440
sparks will be directed toward the
operator, or if sparks or debris would be
directed into flammable surroundings.
WARNING
If you experience kickback of sufficient
magnitude to activate the Quickstop,
please review the operating instructions
and safety precautions in this chapter
before resuming work. Kickback
situations can and always should be
avoided. Pinching or binding of the
wheel can be prevented by proper
support of the workpiece (see below),
proper working technique (e.g., not side
loading the wheel and standing outside
the plane of the wheel), and by the use
of properly designed, manufactured and
maintained abrasive cutting wheels that
do not wobble and that do not have
friction-generating abrasive material on
their sides.
WARNING
To reduce the risk of injury from reactive
forces, shattered wheels, thrown
segments, sparks and cutting debris, the
guard should be pushed fully forward to
the forward stop position (covering the
top of the wheel, down to the point on
the cutting wheel roughly midway
between 9:00 and 12:00 when viewing
the wheel from the fan wheel housing
side of the machine) whenever a more
"open" guard position is not needed to
make a cut. Make this adjustment
sooner if it is necessary to protect the
operator and surroundings from thrown
debris generated during cutting.
The guard always should be positioned
to cover as much of the top of the wheel
as possible consistent with the type of
cut being made and the proper direction
and containment of sparks and other
debris. The recommended guard
position is fully forward to the front stop
position whenever possible.
WARNING
Check the wheel brake system before
starting work as described in the chapter
"Starting/Stopping the Engine" in this
instruction manual. Do not work with the
TS 440 if the wheel brake system is not
functioning properly. Have the wheel
brake system repaired by an authorized
servicing dealer before using the
machine.
WARNING
The wheel brake should be engaged
when starting your machine. If the
abrasive cutting wheel turns at startup
without the brake first being disengaged,
do not use the cut-off machine and have
the wheel brake system repaired by an
authorized servicing dealer before using
it.
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
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