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Contents
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Introductions
The Shindaiwa 446s chain saw is
designed and built to deliver superior
performance and reliability without
compromise to quality, comfort,
safety, or durability. Shindaiwa high
performance engines represent
the leading edge of 2-cycle engine
technology, and deliver exceptionally
high power at remarkably low
displacement and weight. As a
professional owner/operator, you’ll soon
discover why Shindaiwa is simply in a
class by itself.
Attention Statements ........................... 2
Safety Labels ......................................... 5
Unit Description ................................... 6
Specifications ........................................ 6
Installing and Adjusting the
Guide Bar and Saw Chain ................... 7
Serial #
Model #
XXXXXXX
Shindaiwa Kog
y
o Co., L
t
d.
Hiroshima, Japan/Japon
IMPORTANT!
The information contained in this
manual describes units available at
the time of production. While every
attempt has been made to give you
the very latest information about your
Shindaiwa 446s chain saw, there may
be some differences between your saw
and what is described here. Shindaiwa
Inc. reserves the right to make changes
in production without prior notice, and
without obligation to make alterations to
units previously manufactured.
Mixing Fuel .......................................... 8
Bar Oil ................................................... 8
Starting the Engine .............................. 9
Stopping the Engine .......................... 10
Carburetor Adjustments .................... 10
Chain Brake ........................................ 11
Cutting with the Saw .......................... 12
Maintenance ....................................... 14
Saw Chain Performance .................... 16
Troubleshooting Guide ..................... 17
Emission System Warranty ............... 19
IMPORTANT ENGINE INFORMATION
Shindaiwa, Inc.
DISPLACEMENT: 44.6 cc ECS: EM
ENGINE FAMILY: 6sWX.045431
THIS ENGINE CONFORMS TO PH1 U.S.
EPA REGULATIONS FOR SMALL NONROAD
ENGINES.
REFER TO THE OWNER’S MANUAL FOR
MAINTENACE SPECIFICATIONS AND
ADJUSTMENTS.
Attention Statements
All chain saw service, other than the
items listed in the owner’s manual
maintenance instructions, should be
performed by trained Shindaiwa chain
saw service personnel. (For example, if
improper tools are used to remove the
flywheel, or if an improper tool is used to
hold the flywheel in order to remove the
clutch, structural damage to the flywheel
could occur and could subsequently
cause the flywheel to burst.)
Throughout this manual are special
“Attention Statements”.
CAUTION!
A statement preceded by the word
“CAUTION” contains information
that should be acted upon to prevent
mechanical damage.
WARNING!
A statement preceded by the
triangular attention symbol
and the word “WARNING” contains
information that should be acted
upon to prevent serious bodily injury.
NOTE:
A statement preceded by the word
“NOTE” contains information that is handy
to know and may make your job easier.
IMPORTANT!
A statement preceded by the word
“IMPORTANT” is one that possesses
special significance.
IMPORTANT!
WARNING!
The engine exhaust from this prod-
uct contains chemicals known to the
State of California to cause cancer,
birth defects or other reproductive
harm.
WARNING!
Chain saws can be
dangerous! Careless or improper
use can result in serious or fatal
injury to the operator or others.
Read and follow the Operator’s
Manual. Failure to do so could
result in serious injury.
Wear eye and hearing protection
at all times during the operation of
this unit.
Always hold the saw with
both hands.
Beware of Kickback!
Kickback can occur whenever the
tip of the guide bar touches an
object while the saw is operating.
Kickback may force the bar up and
back toward the operator with a
lightning-fast reaction!
Never let the guide bar
tip come in contact with
any object.
Pinching the saw along the top
of the guide bar may force the
bar rapidly back toward the
operator. Pinching can occur
whenever wood closes in
around the moving chain.
Do not operate this tool if you are
tired, ill or under the influence of
alcohol, drugs, or medicine.
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