Craftsman 151.98835 Manual Del Usuario página 4

GENERAL SAFETY INSTRUCTIONS
SAFETY APPAREL
■ Wearing snug fitting clothing. Always wear
heavy, long pants, long sleeves, overalls,
jeans or chaps made of cut resistant material
or ones that contain cut resistant inserts.
Wear non-slip safety footwear. Wear non-
slip heavy duty gloves to improve your grip
and protect your hands. Do not wear jewelry,
short pants, sandals, or go barefoot. Do
not wear loose fitting clothing, which could
be drawn into the motor or catch the chain
or underbrush. Secure hair so it is above
shoulder level.
■ Always wear eye protection with side
shields marked to comply with ANSI Z87.1,
along with head protection.
KICKBACK
See Figures 1-3, page i
WARNING!
Kickback may occur when the moving chain
contacts an object at the upper portion of
the tip of the guide bar or when the wood
closes in and pinches the saw chain in the
cut. Contact at the upper portion of the tip
of the guide bar can cause the chain for an
instant. The result is a lightning fast, reverse
reaction which kicks the guide bar up and
back toward the operator. If the saw chain is
pinched along the top of the guide bar, the
guide bar can be driven rapidly back toward
the operator, either of these reactions can
cause loss of saw control which can result in
serious injury. Do not rely exclusively upon
the safety devices built into the saw. As a
chainsaw user, you should take several steps
to keep your cutting jobs free from accident
or injury.
■ The following precautions should be
followed to minimize kickback:
- Always grip the saw firmly with both
hands. Hold the saw firmly with both hands
when the motor is running. Place your right
hand on the rear handle and your left hand
on the front handle with your thumbs and
fingers encircling the chainsaw handles.
A firm grip together with a stiff left arm
will help you maintain control of the saw if
kickback occurs.
- Make sure that the area in which you are
cutting is free from obstructions. Do not
let the nose of the guide bar contact a log,
branch, fence, or any other obstruction that
could be hit while you are operating the
saw.
- Always cut with the unit running at full
speed. Fully squeeze the trigger switch and
maintain a steady cutting speed.
- Use replacement parts such as low
kickback chain and special guide bars that
reduce the risks associated with rotational
kickback.
- Use only the replacement guide bars
and low kickback chains specified by the
manufacturer for the saw.
■ With a basic understanding of kickback,
you can reduce or eliminate the element
of surprise. Sudden surprise contributes to
accidents.
■ Keep proper footing and balance at all
times.
■ Do not cut above shoulder height or
overreach when cutting.
■ Follow the sharpening and maintenance
instructions for the saw chain.
■ Push and Pull - This reaction force is
always opposite to the direction the chain
is moving where wood contact is made.
Consequently, the operator must be ready
to control the PULL of the log backward
when cutting on the bottom edge of the bar
(overbucking), and to control the PUSH of the
log forward when cutting on the top edge of
the bar (underbucking). See Fig. 3, page i
IN THE CUTTING/WORK AREA
■ Do not operate a chainsaw in a tree, on a
ladder, rooftop or scaffold; this is extremely
dangerous.
4 ― English