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SymmetricalGuideBar
LargeRadiusTip
S Low--Kickback Chain, designed with a
contoured depth gauge and guard link
which deflect kickback force and allow
woodtograduallyrideintothecutter.Low--
Kickback Chain has met kickback per-
formance requirements when tested on a
representative sample of chain saws be-
low 3.8 cubic inch displacement specified
in ANSI B175.1.
Low---Kickback
Chain
Not a Low---Kickback Chain
CanObstructMaterial
Contoured Depth Gauge
Elongated GuardLink
Deflects
kickbackforce
and allowswood
to gradually ride
into cutter
S Front Hand Guard, designed to reduce the
chance ofyour lefthandcontacting thechain
if your hand slips of f the front handlebar .
S Position of front and rear handlebars, de-
signedwithdistancebetweenhandlesand
“in-line” with each other. The spread and
“in-line” position of the hands provided by
this de sign work together to give balance
and resistance in controlling the pivot of
the saw back toward the operator if kick-
back occurs.
CHAIN BRAKE A ND CKA ANGL E
S ChainBrake, designedto stopthechainin
the event of kickback.
WARNING: WE DO NOT REP-
RESENT AND YOU S HOULD N OT AS-
SUME THAT THE CHAIN BRAKE WILL
PROTEC TYOU INTHE E V ENTOF AKICK-
BACK. K ickback 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
canalsobecausedbypinchingthesawchain
along the top of theguide bar . This actionmay
push the guide bar rapidly back toward the op-
erator. Either of these events may cause you
to lose control of the saw which could result in
serious injury o r even death. DO NOT REL Y
UPON ANY OF T HE DEVICE S BUILT INT O
YOUR SAW. YOU SHOULD USE THE SA W
PROPERL Y AND CAREFULLY TO A VOID
KICKBACK. Re duced--kickback guide bars
and l ow--kickback saw chains reduce the
chance and magnitude of kickback and are
recommended. Y our saw has a low kickback
chain and bar as original equipment. Repairs
on a chainbrake shouldbe made by anautho-
rized servicing dealer. Take your unit to the
place of purchase if purchased from a servic-
ing dealer, or to the nearest authorized master
service dealer .
S Tipcontactinsomecasesmaycause alight-
ning fast reverse REACTION, kicking guide
bar up and back toward operator .
S Pinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
S Either of these reactions may cause you to
lose control of the saw which could result in
serious injury. Do not rely exclusively upon
devices built into your saw .
WARNING: Computed kickback
angle(CKA) listedonyoursaw andlistedinthe
CKA table below represents angle of kickback
your bar and chain combinations will have
when tested in accordance with CSA (Cana-
dian Standards Association) and ANSI stan-
dards. When purchasing replacement bar and
chain, considerations should be given to the
lower CKA values. Lower CKA values repre-
sent safer angles to the user , higher values in-
dicate more angle and higher kick energies.
Computed angles represented indicate total
energy andangleassociated withoutactivation
of the chain brake during kickback. Activated
anglerepresentschainstoppingtime relativeto
activation angle of chain break and resulting
kick angle of saw. In all cases lower CKA val-
ues represent a safer operating environment
for the user .
The following guide bar and chain combina-
tions meet kickback requirements of CSA
Standards Z62.1, Z62.3, & ANSI B175.1
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.
Computed kickback angle (CKA) Table
BAR
P/N Length CHAIN P/N
952044689 18″
MODEL
CKA without chain brake
PP4218AVHD
33_
952051338
NOTE: Ifthissawistobeusedforcom-
mercial logging, a chain brake is required
and shall not be removed or otherwise dis-
abledtocomply withFederal OSHARegula-
tions for Commercial Logging.
SAFETY NOTICE:Exposure to vibrations
through prolonged use of gasoline powered
hand tools could cause b lood vessel or nerve
damage in the fingers, hands, and joints of
people prone to circulation disorders or
abnormal swellings. Prolonged use in cold
weather has been linked to b lood vessel