Chain Saw Nomenclature - Makita UC120D Manual De Instrucciones

1. Front handle
2. Front handle guard
3. Spike bar
4. Fastening bolt
5. Sprocket guard
6. Bar tip guard
Bar Tip Guard - An attachment that may be provided on
the end of the guide bar to prevent the chain at the end of
the guide bar from contacting the wood.
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.
Front Handle - The support handle located at or toward
the front of the chain saw.
Handle Guard Front - 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.
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 mov-
ing saw chain in the cut along the top of the guide bar.
Kickback, Rotational - The rapid upward and backward
motion of 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.
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.

Chain Saw Nomenclature

1
9
10
7
11
2
3
4
5
7 . Guide bar
8 . Lock-off button
9 . Rear handle
10. Switch trigger
11. Saw chain
Replacement Saw Chain - A chain that complies with
the kickback performance requirements of ANSI B175.1
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 sup-
ported by the guide bar.
Spiked Bumper (Spike) - The pointed tooth or teeth for
use when felling or bucking to pivot the saw and maintain
position while sawing.
Switch - A device that when operated will complete or
interrupt and electrical power circuit to the motor of the
chain saws.
Lock-Off Button - A Movable stop that prevents the
unintentional operation of the switch until manually actu-
ated.
IMPORTANT SAFETY INSTRUC-
TIONS FOR BATTERY CAR-
TRIDGE
1. Before using battery cartridge, read all instruc-
tions and cautionary markings on (1) battery
charger, (2) battery, and (3) product using bat-
tery.
2. Do not disassemble battery cartridge.
3. If operating time has become excessively
shorter, stop operating immediately. It may
result in a risk of overheating, possible burns
and even an explosion.
4
8
6
12
001728
ENC004-1