Chain Saw Names And Terms - Oregon CS250 Original Instruction Manual

CHAIN SAW NAMES AND TERMS

CHAIN SAW NAMES AND TERMS
Automatic oiler: A system that
automatically lubricates the guide bar
and saw chain
Bucking: The process of cross-cutting a
felled tree or log into lengths
Chain brake: A device used to stop the
saw chain
Chain saw powerhead: A chain saw
without the saw chain or guide bar
Drive 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
Hand guard: A structural barrier between
the front handle of a chain saw and
the guide bar, which also serves as an
activating mechanism for the chain
brake
Guide bar: A 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
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OREGON® CORDLESS TOOL SYSTEM
CHAIN SAW MODEL CS250
Low-kickback chain: A chain that
complies with the kickback performance
requirements of ANSI B175 1
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
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 cuts the wood, and
that is driven by the powerhead and is
supported by the guide bar
Trigger lock-out: A movable stop that
prevents the unintentional operation
of the trigger switch until manually
actuated
Trigger switch: A device that when
operated will complete or interrupt an
electrical power circuit to the motor of
the chain saw
AD 0213 - F/N 551309