Symrnetr4cal
Guide
Bar
i_"v,_
Large Radius Tip
• Low-Kickback
Chain,
designed
with a
contoured
depth
gauJg_e and guard link
which deflect kickback force and allow
wood togradually ride intothe 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.
Conto_lred
Depth Ga_lge
D Elongated Guard Unk
Low-Kickback
'_
and allows wood
CheJn
to gradueJly ride
intocutter
_Can
Obstruct Materlal
Not a LOW-Kickback
CheJn
• Front Hand Guard, designed to reduce the
chance of your left handcontacting thechain
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
"inqine" position of the hands provided by
this design work together to give balance
and resistance in controlling the pivot of
the saw back toward the operator if kick-
back occurs.
CHAIN BRAKE AND CKA ANGLE
• Chain Brake, designedtostopthechain
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
along the top of the guide ba_ This action may
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
serio_ 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-I'Jckback guide hers
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 autho-
rized servicing dealer. Take your unit to the
place of purchase if purchased from a sewic*
ing dealer,or to the nearestauthorized master
service deale_
• Tipcontact in some cases may cause a light-
ning fast reverse REACTION, kicking guide
bar up and back toward operator.
• Pinching the saw chain along the top of the
_cUide bar may push the guide bar rapidly
k toward the operator.
• 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) listedon your saw and listed inthe
CKA table below represents, ,an91eof kickback,
your bar and chetn combinations wt_l 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. LowerCKA values repre-
sent safer angles to the user, highervalues in_
dicate more angle and higher kick energies.
Computed angles represented indicate total
energy and angle associatedwithout activation
of the chain brake during kickback. Activated
angle represents chain stoppingtime relativeto
activation angle of chain break and resulting
kick angle of saw. _na_l c ases lower CKA vab
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 Bt75.1
when used on saws _isted in this manual.
Use of bar and chain combinations other
than those tisted is not recommended and
may not meet the CKA requirements per
standard.
Computed kickback angle (CKA)
BAR
MODEL
1950/1975/
2050/2050WT
2055/2075/
2150/2150PR
2155/2175/
2350/2375
Table
P/N
952044368
952044370
952044418
Length
CHAIN P/N
14"
952051209
16"
952051211
18"
952051338
CKA without
chain brake
24 °
19°
14°