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.
Felting 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 ohject 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
ohject.
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.