Kickback Safety Features - Black & Decker BCCS320 Instruction Manual

20v max cordless pruning chainsaw
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motor stopped and tool unplugged, never with the
motor running.
11 . Begin and continue cutting only with the chain
moving at full speed. If the chain is moving at a slower
speed, there is a greater chance for kickback to occur.
12 . Cut one log at a time.
13 . Use extreme caution when re‑entering a previous cut.
Engage the ribbed bumpers
the chain to reach full speed before proceeding with a cut.
14 . Do not attempt plunge cuts or bore cuts.
15 . Watch for shifting logs or other forces that could
close a cut and pinch or fall into chain.

Kickback Safety Features

WARNING: The following features are included on your
saw to help reduce the hazard of kickback; however
such features will not totally eliminate this dangerous
reaction. As a pruner user do not rely only on safety
devices. You must follow all safety precautions,
instructions, and maintenance in this manual to help
avoid kickback and other forces which can result in
serious injury.
Reduced‑Kickback Guide Bar and tip guard, designed with
a small radius tip which reduces the size of the kickback
danger zone on bar tip. Reduced‑kickback guide bar and
tip guide have been demonstrated to significantly reduce
the number and seriousness of kickbacks when tested in
accordance with safety requirements for electric pruners.
Low‑Kickback Chain, designed with a contoured depth
gauge and guard link which deflect kickback force and
allow wood to gradually ride into the cutter. A low‑kickback
chain is a chain which has met kickback performance
requirements of ANSI B175.1–2012.
Do not operate pruner while in a tree, on a ladder, on a
scaffold, or from any unstable surface.
Hold tool by insulated gripping surfaces when performing
an operation where the cutting tool may contact hidden
wiring. Contact with a "live" wire will make exposed metal
parts of the tool "live" and shock the operator.
Do not attempt operations beyond your capacity or
experience. Read thoroughly and understand completely all
instructions in this manual.
Before you start pruner, make sure saw chain is not
contacting any object.
Do not operate a pruner with one hand! Serious injury to
the operator, helpers, or bystanders may result from one
handed operation. A pruner is intended for two‑handed
use only.
Keep the handles dry, clean, and free of oil or grease.
Do not allow dirt, debris, or sawdust to build up on the
motor or outside air vents.
Stop the pruner before setting it down.
Do not cut vines and/or small under brush.
Use extreme caution when cutting small size brush and
saplings because slender material may catch the saw chain
and be whipped toward you or pull you off balance.
onto the wood and allow
Pruner Names and Terms
Bucking ‑ The process of cross cutting a felled tree or log
into lengths.
Motor Brake (if equipped) ‑ A device used to stop the
saw chain when the trigger is released.
Pruner Powerhead ‑ A pruner 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 pruner.
Front Hand Guard ‑ A structural barrier between the front
handle of a pruner 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.
Scabbard/Guide Bar Cover ‑ Enclosure fitted over guide
bar to help 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 pruners.)
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.
Pruning Saw ‑ A saw with a specialized pruning tip guard
that facilitates pruning of branches using the top front end
of the guide bar.
Pruning Tip Guard ‑ A shield that prevents contact with
the saw chain at the tip of the guide bar, for reducing
the incidence of kickbacks. Also includes an extension
located at the top front end of the guide bar provided for
top‑end cutting as shown in Fig. C.
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 B175.1–2012

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