Ryobi Outdoor CS1800 Chainsaw User Manual


 
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GLOSSARY OF TERMS
Front Handle
The support handle located at or toward the front of
the chain saw.
Front Handle Guard
A structural barrier between the front handle of a chain
saw and the guide bar, typically located close to the
hand position on the front handle and sometimes
employed as an activating lever for a chain brake.
Guide Bar
A solid railed structure that supports and guides the
saw chain.
Saw Chain
A loop of chain that has cutting teeth for cutting wood.
It is driven by the motor and is supported by the guide
bar.
Kickback
The backward and/or upward motion of the guide bar
occurring when the moving chain contacts an object at
the upper portion of the tip of the guide bar, or when
the wood closes in and pinches the saw chain in the
cut.
Kickback, Pinch
The rapid push back of the saw which can occur when
the wood closed 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 portion of the top of the guide bar, contacts an
object such as a log or branch.
Low-Kickback Chain
A chain that complies with the kickback performance
requirements of ANSI B175-1-1991 when tested on a
representative sample of chain saws.
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.
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.
Oiler Control
A system for oiling the guide bar and saw chain.
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.
Replacement Saw Chain
A chain that complies with the kickback performance
requirements of ANSI B175.1-1991 when tested with
specific chain saws. It may not meet the ANSI perfor-
mance requirements when used with other saws.
Switch
A device that when operated will complete or interrupt
an electrical power circuit to the motor of the chain
saw.
Switch Lockout
A movable stop that prevents the unintentional opera-
tion of the switch until manually actuated.
Safe-T-Tip
An attachment that may be provided on the end of the
guide bar to prevent the chain, on the end of the guide
bar, from contacting the wood.
Drive Sprocket or Sprocket
The toothed part that drives the saw chain.