Use and Care Manual

8 - English
GLOSSARY OF TERMS
Automatic Oiler System
Lubrication is provided by the automatic oiler system. The
oiler is driven by the sprocket and adds lubrication only when
the chain is moving.
Bucking
The process of cross cutting a felled tree or log into lengths.
Chain Brake
A device used to stop the saw chain.
Chainsaw Power Head
A chainsaw without the saw chain and guide bar.
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 Hand Guard
A structural barrier between the front handle of a chainsaw
and the guide bar, typically located close to the hand posi-
tion on the front handle.
Front Handle
The support handle located at or toward the front of the
chainsaw. This handle is for the left hand.
Guide Bar
A solid railed structure that supports and guides the saw chain.
Kickback
The backward or upward motion, or both, 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 a 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 por-
tion of the tip of the guide bar contacts an object, such as
a log or branch.
Lock-out Button
A movable stop that prevents the unintentional operation of
the switch until manually actuated.
Low-Kickback Chain
A chain that complies with the kickback performance require-
ments of ANSI B175.1 when tested on a representative
sample of chainsaws.
Normal Cutting Position
Those positions assumed in performing the bucking and
felling cuts.
Notching Undercut
A notch cut in a tree that directs the tree’s fall.
Rear Handle
The support handle located at or toward the rear of the saw.
It normally contains the switch trigger. This handle is for the
right hand.
Reduced Kickback Guide Bar
A guide bar which has been demonstrated to reduce kick-
back significantly.
Replacement Saw Chain
A chain that complies with the kickback performance require-
ments of ANSI B175.1 when tested with specific chainsaws.
It may not meet the ANSI performance requirements when
used with other saws.
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.
Springpole
A small tree (sapling) or limb that is bent or trapped under
tension. It may “spring back” rapidly when cut, causing a
dangerous situation.
Switch Trigger
A device that when operated will complete or interrupt an
electrical power circuit to the motor of the chainsaw.