5
Symmetrical Guide Bar
Large Radius Tip
SLow--Kickback Chain, designed with a
contoured depth gauge and guard link
which deflect kickback force and allow
woodto gradually rideinto the cutter. 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
Nota Low ---KickbackChain
CanObstruct Material
Contoured DepthGauge
ElongatedGuard Link
Deflects
kickback force
andallows wood
tograd ually ride
intocutter
SFront Hand Guard, designed to reduce the
chanceof your left hand contacti ng thechain
if your hand slips off the front handlebar.
SPosition 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 gi ve balance
and resistance in controlling the pivot of
the saw back toward the operator if kick-
back occurs.
CHAIN BRAKE AND CKA ANGLE
SChain 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
KICKBACK. Kickback is a lightning f ast ac-
tion 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
sawchain along the top of the guide bar. This
action may push the guide bar rapidly back
toward the operator. Either of these events
may cause you to lose control of the saw
which could result in serious injury or even
death. DONOT RELY UPON ANY OF THE
DEVICES BUILT INTO YOUR SAW. YOU
SHOULDUSE THE SAW PROPERLY AND
CAREFULLY TO AVOID KICKBACK. Re-
duced--kickback guide bars and low--kick-
back saw chains reduce the chance and
magnitude of kickback and are rec om-
mended. Your saw has a low kick back chain
and bar as original equipment. Repairs on a
chain brake should be made by an autho-
rized servicing dealer. Take your unit to the
place of purchase if purchased from a ser-
vicing dealer, or to the nearest authorized
master service dealer.
STipcontact in some cases may cause a light-
ning fast reverse REACTION, kicking the
guide bar up and back toward the operator.
SPinching the saw chain along the top of the
guide bar may push the guide bar rapidly
back toward the operator.
SEither of these react ions may cause you to
lose control of the saw which could result
in serious injury.Do not rely exclusiv ely
uponthe saf ety devices built into your saw.
WARNING: Computed kickback
angle (CKA) listed on your sawand lis ted in
the CKA tabl e below represents angle of
kickback your bar and chain combinati ons
will have when tested in accordance with
CSAand A NSI standards. When purchasing
replacement bar and chain, considerations
should be given to the lower CKA values.
Lower CKAvalues representsafer angles to
the user, higher values indic ate more angle
and higher kickenergies. Com puted angles
represented in the non-activated column in-
dicate total energy and angle associated
without activation of the chai n brake during
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 forthe user.
The following guide bar and chain combina-
tions meet kickback requirements of CSA
Z62.1, Z62.3, & ANSI B175.1when used on
saws listed in this manual. Use of bar and
chain combinations other than those li sted is
not recommended and may not meet the
CKA requirements per standard.
Computed kickback angle (CKA) Table
BAR
P/N Length CHAIN P/N
16!
MODEL CKA without chain brake
221 LE 530044834 530051480 8_
NOTE: If this saw is to be used for commer-
cial logging, a chainbrake is required and shall
not be removed orot herwisedisabled t ocom-
ply with Federal OSHA Regulations for Com-
mercial Logging.
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. Prolonged use in cold
weather has been linked to blood vessel
damage in otherwise healthy people. If