Poulan 3450 Manual De Instrucciones página 5

Symmetrical Guide Bar i......_,_
Large Radius Tip
• Low-Kickback Chain, designed with a con-
toured depth gauge and guard link which de-
nect kickback force and allow wood to gradu-
ally dde into the cutter. Low-Kickback Chain
has met kickback performance require-
meats when tested on a representative sam-
ple of chain saws below 3.8 cubic inch
displacement specified in ANSI Bf75.1.
Contoured Depth Gauge
__,4€" Elongated Guard Link
_/€ Deflects kickback
_ _ force and allows
.- _ wood to gredually
Low-K_ckback \ ride into cutter
Chain
__J_r.... Can Obstruct
'_.._ Material
Not a Low-Kickback Chain
• Front Handguard, designed to reduce the
chance of your left hand contacting the chain
if your hand slips off the front handlebar.
• Position of front and rear handlebars, de-
signed with distance between handles and
"in-line" with each other. The spread and "in-
line" position of the hands provided by this
design work together to give balance and re-
sistance in contrelliog the pivot of the saw
back toward the operator if kickback occurs.
CHAIN BRAKE
• Chain Brake, designed to stop the chain in
the event of kickback.
_,WARNING: WE DO NOT REP-
RESENT
AND YOU SHOULD NOT AS-
SUME THAT THE CHAIN BRAKE WILL
PROTECT YOU IN THE EVENT OF A KICK-
BACK. Kickback is a lightning fast action
which throws the bar and rotating chain back
and up toward the operator. Kickback can be
caused by allowing contact of the bar tip in the
danger zone with any hard object. Kickback
can also be caused by pinching the saw chain
Computed kickback angle (CKA) Table
BAR
MODEL
3450
3750
along the top of the guide bar. This action may
push the guide bar rapidly back toward the op-
erator. Either of these events may caose you
to lose control of the saw which could result in
sedous injury or even death. DO NOT RELY
UPON ANY OF THE DEVICES BUILT INTO
YOUR SAW, YOU SHOULD USE THE SAW
PROPERLY AND CAREFULLY TO AVOID
KICKBACK, Reduced-kickback guide bars
and low-kickback saw chains reduce the
chance and magnitude of kickback and are
recommended. Your saw has a low kickback
chain and bar as original equipment. Repairs
on a chain brake should be made by an aL_ho-
nzed servicing dealer. Take your unit to the
place of purchase if purchased from a servic-
ing dealer, or to the nearest authodzed master
service dealer.
• Tip contact in some cases may cause a
lightning fast reverse REACTION, kicking
guide bar up and back toward operator.
• Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
• Either ofthese reactions maycauseyouto
lose control of the saw which could result
in serious injury. Do not rely exclusively
upon safety devices built into your saw.
_WARNING:
Computed kickback
angle (CKA) listed on your saw and listed in
the CKA table below represents angle of
kickback your bar and chain combinations
will have when tested in accordance with
CSA and ANSI standards. When purchasing
replacement bar and chain, considerations
should be given to the lower CKA values.
Lower CKA values represent safer angles to
the user, higher values indicate more angle
and higher kick energies. Computed angles
represented in the non-activated column in-
dicate total energy and angle associated
without activation of the chain brake dudng
kickback. Activated angle represents chain
stopping time relative to activation angle of
chain brake and resulting kick angle of saw.
In all cases lower CKA values represent a
safer operating environment for the user.
The following guide bar and chain combina-
tions meet kickback requirements of CSA
Z62.1, Z62.3, & ANSI B175.f when used on
saws listed in this manual. Use of bar and
chain combinations other than those listed is
not recommended and may not meet the
CKA requirements per standard.
P/N Length CHAIN P/N CKAwithout chain brake
530044544 20" 952051266 21 °
530044723 22" 952051459 23 °
NOTE: If this saw is to be used for commer-
cial logging, a chain brake is required and shall
not be removed or otherwise disabled to com-
ply with Federal OSHA Regulations for Com-
mercial Logging.
5
SAFETY NOTICE: Exposure to
vibrations through prolonged use of gasoline
powered hand tools could cause blood
vessel or nerve damage in the fingers,
hands, and joints of people prone to
circulation disorders or abnormal swellings.