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101755
OWNER’S MANUAL
CHAIN SAW NAMES
AND TERMS
Boring The process involved in cutting
with the saw chain at the nose (tip) of the
guide bar, in order to make a hole. This is not
recommended because of hazard of kick-
back.
Bucking The process of cross cutting a
felled tree or log into lengths.
Chain Saw Powerhead A chain saw
without the saw chain and guide bar.
Clutch A mechanism for connecting and
disconnecting a driven member to and from
a rotating source of power.
Drive Sprocket or Sprocket The toothed
part that drives the saw chain.
Felling The process of cutting down a tree.
Felling Back Cut The final cut in a tree
felling operation made on the opposite side
of the tree from the notching undercut.
Front Handle The support handle located
at or toward the front of the chain saw.
Front Handle Guard A structural barrier
between the front handle of a chain saw and
the guide bar, typically located close to the
hand position on the front handle.
Guide Bar A solid railed structure that
supports and guides the saw chain.
Kickback The backward and/or upward
motion of the guide bar occurring when the
saw chain near the nose of the top area of the
guide bar contacts any object such as an-
other log or branch, or when the wood closes
in and pinches the saw chain in the cut.
Kickback, Pinch The rapid pushback of
the saw which can occur when the wood
closes in and pinches the moving saw chain
in the cut along the top of the guide bar.
Kickback, Rotational The rapid upward
and backward motion of the saw which can
occur when the moving saw chain near the
upper portion of the tip of the guide bar
contacts an object, such as a log or branch.
Normal Cutting Position Those posi-
tions assumed in performing the bucking
and felling cuts.
Notching Undercut A notch cut in a tree
that directs the tree’s fall.
Oiler Control A system for oiling the guide
bar and saw chain.
Rear Handle The support handle located at
or toward the rear of the saw.
Reduced Kickback Guide Bar A guide
bar which has been demonstrated to reduce
kickback significantly.
Saw Chain A loop of chain having cutting
teeth, that cut the wood, and that is driven by
the motor and is supported by the guide bar.
Spiked Bumper (Spike) The pointed tooth
or teeth for use when felling or bucking to
pivot the saw and maintain position while
sawing.
Switch A device that when operated will
complete or interrupt an electrical power
circuit to the motor of the chain saw.
Switch Linkage The mechanism that trans-
mits motion from a trigger to the switch.
Switch Lockout A movable stop that
prevents the unintentional operation of the
switch until manually actuated.