CHAIN SAW terms and definitions
Bucking Process of cutting a felled tree or log into lengths.
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 moving. The guide bar will kick up and back towards operator.
Limbing Process of cutting limb(s) from a felled tree.
Normal Cutting Position Stance used while making bucking and felling cuts.
Notching Cut Notch cut in tree that di- rects fall of tree.
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 hav- ing 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 Lockout Device that reduces ac- cidental starting of saw.
Trigger Device that turns saw on and off. Squeezing 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 nor- mal cutting position and cutting with top of guide bar.
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