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Computed kickback angle (CKA) Table
BAR
P/N Length CHAIN P/N
18″
MODEL
CKA without chain brake
SM4218 A V
33_952051338
952044926
NOTE: Ifthissawistobeusedforcom-
mercial logging, a chain brake is required
and shall not be removed or otherwise dis-
abledtocomply withFederalOSHARegula-
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 u se in cold
weather has been linked to blood vessel
damage in otherwise healthy people. If
symptoms occur such as numbness, pain,
loss of strength,changein skincolor ortexture,
or loss of feeling i nthe fingers, hands, orjoints,
discontinue the u se of this tool and seek
medical attention. An anti-vibration system
does not guarantee the avoidance of these
problems. Users who operate power tools on
a continual and regular basis must monitor
closely t heir physical condition and the
condition of this tool.
SPECIALNOTICE:Yoursawisequipped
with atemperature lim itingmufflerandspark
arresting screen which meets the
requirements of California Codes 4442 and
4443. All U.S. forest land and the states of
California, Idaho, Maine, Minnesota, New
Jersey, Oregon, and Washington require by
law that many internal combustion engines
tobeequippedwithaspark a rrestingscreen.
Ifyouoperateachainsawinastate orlocale
wheresuchregulations exist,you a relegally
responsible for maintaining the operating
condition of these parts. Failure to do so is
aviolation ofthelaw. Refer tothe SERVICE
section for maintenance of the spark
arresting screen.
FailuretofollowallSafetyRulesandPrecau-
tionscanresultinserious injury . Ifsituations
occur which are not covered in this manual,
use care and good judgement. If you need
assistance, contact your authorized service
dealer or call 1-800--554--6723.
STANDARDS: This saw is listed by Under-
writer’s Laboratories, Inc., in accordance with:
ANSI B175.1--2000 American National
Standards for Gasoline--Powered Chain
Saws -- Safety Requirements
CSA Z62.1--03 Chain Saws -- Occupational
Health and Safety
CSA Z62.3--96 Chain Saw Kickback Occu-
pational Health and Safety
ASSEMBLY
Protective gloves (not provided) should be
worn during assembly.
ATTACHINGTHEBAR&CHAIN(Ifnot
already attached)
WARNING: If receive d assem bled,
repeat all steps to ensure your saw is properly
assembled and all fasteners are secure. Al-
ways wear gloves when handling the chain.
Thechain is sharp andcan cut you even when
it is not moving!
1. Loosenandremovethebarnuts andthe
clutch cover from the saw.
2. Remove the plastic shipping spacer (if
present).
Clutch cover
Bar nuts
Chain adjustment tool
(Bar Tool)
Location of
shipping
spacer
3. Turnadjusting screw onbarcounterclock-
wise to move thetensioning rack as far as
it will go toward the front of the bar.
Tensioning Rack
Adjusting
Screw
4. Slideguide ba r onbar bolts u ntil guidebar
stops against clutch drum sprocket.
Guide bar
Bar bolts
5. Carefully remove the chainfrom thepack-
age. Hold chain with the drive links as
shown.