Chainsaw Names And Terms; Additional Safety Information - DeWalt DCCS670 Instruction Manual

wash exposed areas with soap and water. Allowing
dust to get into your mouth, eyes, or lay on the skin may
promote absorption of harmful chemicals.

WARNING: Use of this tool can generate and/
or disperse dust, which may cause serious and
permanent respiratory or other injury. Always use
NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles
away from face and body.

Chainsaw Names and Terms

• Bucking - The process of cross cutting a felled tree or log
into lengths.
• Motor Brake - A device used to stop the saw chain when
the trigger is released.
• Chain Saw Powerhead - A chain saw without the saw
chain and guide bar.
• Drive Sprocket or 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 cut.
• Front Handle - The support handle located at or toward
the front of the chain saw.
• Front Hand 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.
• Guide Bar - A solid railed structure that supports and
guides the saw chain.
• Guide Bar Scabbard - Enclosure fitted over guide bar to
prevent tooth contact when saw is not in use.
• 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.
• Kickback, Pinch - The rapid pushback of the saw which
can occur when the wood closes 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 tip of the guide bar
contacts an object, such as a log or branch.
• Limbing - Removing the branches from a fallen tree
• Low-Kickback Chain - A chain that complies with the
kickback performance requirements of ANSI B175.1–2012
(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.
• 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
kickback performance requirements of ANSI B175.1–2000
when tested with specific chain saws. It may not meet
the ANSI performance requirements when used with
other saws.
• Saw Chain - A loop of chain having cutting teeth, that cut
the wood,and that is driven by the motor and is supported
by the guide bar.
• Ribbed Bumper - The ribs used when felling or bucking to
pivot the saw and maintain position while sawing.
• Switch - A device that when operated will complete or
interrupt an electrical power circuit to the motor of the
chain saw.
• Switch Linkage - The mechanism that transmits motion
from a trigger to the switch.
• Switch Lockout - A movable stop that prevents
the unintentional operation of the switch until
manually actuated.

Additional Safety Information


WARNING: ALWAYS use safety glasses. Everyday
eyeglasses are NOT safety glasses. Also use face or
dust mask if cutting operation is dusty. ALWAYS WEAR
CERTIFIED SAFETY EQUIPMENT:
• ANSI Z87.1 eye protection (CAN/CSA Z94.3),
• ANSI S12.6 (S3.19) hearing protection,
• NIOSH/OSHA/MSHA respiratory protection.

WARNING: Always wear proper personal hearing
protection that conforms to ANSI S12.6 (S3.19)
during use. Under some conditions and duration
of use, noise from this product may contribute to
hearing loss.

CAUTION: When not in use, place tool on its
base on a stable surface where it will not cause
a tripping or falling hazard. Some tools with large
battery packs will stand upright on the battery pack
but may be easily knocked over.
• Air vents often cover moving parts and should be
avoided. Loose clothes, jewelry or long hair can be
caught in moving parts.
The label on your tool may include the following symbols. The
symbols and their definitions are as follows:
V ......................... volts
Hz ....................... hertz
min ..................... minutes
or DC ...... direct current
...................... Class I
Construction
(grounded)
.../min .............. per minute
BPM .................... beats per minute
IPM ..................... impacts per
minute
RPM .................... revolutions per
minute
English
sfpm ................... surface feet per
minute
SPM .................... strokes per minute
A ......................... amperes
W ........................ watts
or AC ........... alternating current
or AC/DC .... alternating or
direct current
...................... Class II
Construction
(double insulated)
n o ....................... no load speed
n ......................... rated speed
...................... earthing terminal
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