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ENGLISH
9
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CHAIN SAW TERMS AND DEFINITIONS
Bucking Process of cutting a felled tree or log
into lengths.
Clamping Lever
Lever is loosened to allow
inner pole to be adjustd and tighted to hole pole
in position.
Felling Process of cutting down a tree.
Felling Cut
Final cut when felling a tree. Make
this cut on opposite side of tree from notching
cut.
Front Handle Located at front of saw body.
Front Hand Guard Shield between front
handle and guide bar. Protects left hand while
using saw.
Guide Bar Metal bar that extends from saw
body. The guide bar supports and guides chain.
Guide Bar Nose Tip or end of guide bar.
Inner Pole
The moveable section of tubing to
which the saw is attached.
Kickback Quick backward and upward motion
of guide bar. Kickback may occur when tip of
guide bar touches an object while chain is mov-
ing. The guide bar will kick up and back towards
operator.
Limbing Process of cutting limb(s) from a
felled tree.
Low-Kickback Chain
Chain that reduces chance
of kickback as required by ANSI B175.1.
Normal Cutting Position
Stance used while
making bucking and felling cuts.
Notching Cut
Notch cut in tree that directs
fall of tree.
Oiler Control
System for oiling guide bar and
chain.
Outer Pole
Retains the moveable inner pole.
Power Head
Chain saw without chain and guide
bar. Also known as saw body.
Pushback (Kickback, Pinch)
Rapid pushback
of chain saw. Pushback may occur if chain along
top of guide bar is pinched, caught, or contacts a
foreign object.
Rear Handle
Handle located at rear of saw
body.
Reduced Kickback Guide Bar
Guide bar that
reduces chance of kickback.
Replacement Chain
Chain that complies with
ANSI B175.1 when used with a specific saw. It
may not meet ANSI requirements when used with
other saws.
Saw Chain (Chain)
Loop of chain having
cutting teeth for cutting wood. The motor drives
chain. The guide bar supports chain.
Spiked Bumper (Spike) Pointed teeth at front
of saw body beside guide bar. Keep spiked bumper
in contact with wood when felling or bucking. It
helps maintain position of saw while cutting.
Sprocket Toothed wheel that drives chain.
Switch Device that completes or interrupts
electrical circuit to motor of saw.
Switch Linkage This device connects switch
to trigger. It moves switch when you squeeze
trigger.
Trigger Switch Lockout
Device that reduces
accidental starting of saw.
Trigger
Device that turns saw on and off. Squeez-
ing trigger turns saw on. Releasing trigger turns
saw off.
Trimming (Pruning)
Process of cutting limb(s)
from a living tree.
Undercut An upward cut from underside of log
or limb. This is done while in normal cutting posi-
tion and cutting with top of guide bar.