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Computed kickback angle (CKA) Table
BAR
P/N Length CHAIN P/N
530044693 18″
MODEL
CKA without chain brake
MC4218AV
33_
530051478
NOTE: Ifthissawistobeusedforcom-
mercial logging, a chain brake is required
and shall not be removed or otherwise dis-
abled to comply with Federal OSHA Regula-
tions for Commercial Logging.
WARNING: The engine exhaust
from this product contains chemicals known
to the State of California to cause cancer,
birth defects or other reproductive harm.
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
symptoms occur such as numbness, pain,
loss of strength, change in skin color o r texture,
or loss of feeling in the fingers, hands, or joints,
discontinue the use 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 their physical condition and the
condition of this tool.
SPECIAL NOTICE: Y our saw is equipped
with a temperature limiting muffler and spark
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 to
be equipped with a spark arresting screen. If
you operate a chain saw in a state or locale
where such regulations e xist, you are legally
responsible for maintaining the operating
condition of these parts. Failure to do so is a
violation of the law . Refer to the SERVICE
section for maintenance of the spark arresting
screen. Failure to follow all Safety Rules and
Precautions can result in serious inj ury . If
situations 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 l isted 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--04 Chain Saw Kickback Occu-
pational Health and Safety
ASSEMBLY
Protective gloves (not provided) should be
worn during assembly.
ATTACHING THE BAR &CHAIN (If not
already attached)
WARNING: I f rece ived assem ble d,
repeat all steps to ensure your saw is properly
assembled and al l fasteners are secure. Al-
ways wear gloves when handling the chain.
The chain is sharp and can cut you even when
it is no t moving!
1. Loosen and r em ove thebar nuts and the
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. An adjusting pin and screw is used to ad-
just the tension of t he chain. It is very im-
portant when assembling the bar , that the
pin located on the adjusting screw aligns
into a h ole in th e ba r. Turni ng t he screw will
move the adjustment pin up and down the
screw. Locate this adjustment before you
begin mounting the bar onto the saw . See
following illustration.