SHINDAIWA OWNER'S/
OPERATOR'S MANUAL
357 CHAIN SAW
WARNING!
Always wear eye
protection when operat-
ing this unit.
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin, Oregon 97062
Telephone:503 692-3070
Fax:
503 692-6696
WARNING!
Shindaiwa Kogyo Co., Ltd.
6-2-11 Ozuka-Nishi,
Minimize the risk of
injury to yourself and
others; read this manual
and familiarize yourself
with its contents!
Asaminami-Ku, Hiroshima
731-3167, Japan
Telephone:81-82-849-2220
Fax:
81-82-849-2481
ᮊ2003 Shindaiwa, Inc.
Part Number 72362-93115
Revision 9/03
Shindaiwa is a registered trademark
of Shindaiwa, Inc.
Specifications subject to change without
notice.
Part Number 72362-93115 Rev. 9/03
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Introduction
Contents
Page
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL
DEVICES AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR
ESTABLISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS
MUST BE PERFORMED BY A DEALER OR SERVICE CENTER AUTHORIZED
BY SHINDAIWA KOGYO CO., LTD. THE USE OF PARTS THAT ARE NOT
EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED
PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL
SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A
WARRANTY CLAIM.
The Shindaiwa 357 Top-Handle saw
has been designed and built to deliver
superior performance and reliability
without compromise to quality,
comfort, safety, or durability.
Attention Statements........................... 4
Product Description ............................ 5
Specifications ....................................... 6
Safety Information ............................... 7
Installing the Bar and Chain ............. 11
Adjusting the Saw Chain ................... 13
Mixing Fuel ......................................... 14
Filling the Fuel Tank/Bar Oil ........... 15
Starting the Saw.................................. 16
Carburetor Adjustments .................... 19
Chain Brake ........................................ 21
Cutting with the Saw .......................... 23
Routine Maintenance ......................... 27
Long-term Storage ............................. 29
The Saw Chain .................................... 30
Troubleshooting ................................. 33
Emission System Warranty ............... 36
Shindaiwa high performance
engines represent the leading edge of
2-cycle engine technology, and deliver
exceptionally high power at remark-
ably low displacement and weight. As
a professional owner/operator, you'll
soon discover why Shindaiwa is simply
in a class by itself.
If other than the parts authorized by Shindaiwa Kogyo Co., Ltd. are used for
maintenance replacements or for the repair of components affecting emission
control, you should assure yourself that such parts are warranted by their
manufacturer to be equivalent to the parts authorized by Shindaiwa Kogyo Co.,
Ltd. in their performance and durability.
IMPORTANT!
The information contained in this
manual describes machines available
at the time of production. While every
attempt has been made to give you
the very latest information about your
Shindaiwa 357 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 machines previ-
ously manufactured.
OBTAINING WARRANTY SERVICE
All repairs qualifying under this limited warranty must be performed by a
dealer authorized by Shindaiwa Kogyo Co., Ltd.
If any emission-related part is found defective during the warranty period, it is
your responsibility to present the product to an authorized Shindaiwa dealer.
Bring your sales receipts showing the date of purchase for this engine. The
dealer authorized by Shindaiwa Kogyo Co., Ltd. will perform the necessary
repairs or adjustments within a reasonable amount of time and furnish you with a
copy of the repair order. All parts and accessories replaced under this warranty
become the property of Shindaiwa Kogyo Co., Ltd.
To locate an authorized Shindaiwa dealer near you, contact your Shindaiwa
Distributor. For the name and telephone number of the Shindaiwa Distributor in
your area, please call Shindaiwa Inc. at (503) 692-3070 between the hours of 8:00
AM and 5:00 PM Pacific Standard Time.
WARNING!
THIS WARRANTY IS ADMINISTERED BY
The engine exhaust from this
product contains chemicals known
to the State of California to cause
cancer, birth defects or orther
reproductive harm.
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin OR. 97062
(503) 692-3070
This symbol on the nameplate
means this saw is listed by the
Underwriters Laboratory, Inc.
C
N
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Attention Statements
Read and follow the Operator’s
Manual. Failure to do so could
result in serious injury.
PARTS COVERED
Throughout this manual are special
“attention statments”.
Listed below are the parts covered by the Federal Emission Design and Defect
Warranty. Some parts listed below may require scheduled maintenance and are
warranted up to the first scheduled replacement of that part. The warranted parts
include:
1. Carburetor Internal Components
• Valve Assembly-throttle, Jet, Metering Diaphram
2. Ignition System Components
Wear eye and hearing
protection at all times during
the operation of this unit.
WARNING!
Do not operate this tool if you
are tired, ill or under the
influence of alcohol, drugs,
or medication.
A statement preceded by the
word “WARNING” contains
information that should be
acted upon to prevent serious
bodily injury.
• Ignition Coil
• Flywheel Rotor
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!
The emission control system for your particular Shindaiwa engine may also
include certain related hoses and connectors.
CAUTION!
A statement preceded by the
word “CAUTION” contains
information that should be
acted upon to prevent
LIMITATIONS
The Federal Emission Design and Defect Warranty shall not cover any of the
following:
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.
damaging your saw.
(a) conditions resulting from tampering, misuse, improper adjustment
(unless they were made by the dealer or service center authorized by
Shindaiwa Kogyo Co., Ltd. during a warranty repair), alteration,
accident, failure to use the recommended fuel and oil, or not perform-
ing required maintenance services,
(b) the replacement parts used for required maintenance services,
(c) consequential parts used for required maintenance services,
(d) diagnosis and inspection fees that do not result in eligible warranty
service being performed, and
IMPORTANT!
A statement preceded by the word
“IMPORTANT” is one that possesses
special significance.
All chain saw service, other than the
items listed in the owner's manual
maintenance instructions, should be
performed by trained Shindaiwa
chainsaw service personnel. (For
example, if improper tools are used to
remove the flywheel or if an improper
tools 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).
NOTE:
A statement preceded by the word
“NOTE” contains information that is
handy to know and may make your job
easier.
(e) any non-authorized replacement part, or malfunction of authorized
parts due to use of non-authorized parts.
MAINTENANCE AND REPAIR REQUIREMENTS
You are responsible for the proper use and maintenance of the engine. You
should keep all receipts and maintenance records covering the performance of
regular maintenance in the event questions arise. These receipts and
maintenance records should be transferred to each subsequent owner of the
engine. Shindaiwa Kogyo Co., Ltd. reserves the right to deny warranty coverage
if the owner has not properly maintained the engine. Shindaiwa Kogyo Co., Ltd.
will not deny warranty repairs, however, solely because of the lack of repair,
maintenance or failure to keep maintenance records.
37
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Product Description
The following statement only applies to United States and its territories
Shindaiwa Kogyo Co., Ltd.
Throttle
Lockout Lever
Brake Lever/Hand
Guard
Federal Emission Design And Defect Limited Warranty
Utility And Lawn And Garden Engines
Guide Bar
Rear Handle
Saw Chain
Shindaiwa Kogyo Co., Ltd. warrants to the initial purchaser and each
subsequent owner, that this utility equipment engine (herein engine) is
designed, built and equipped to conform at the time of initial sale, to all
applicable regulations of the U.S. Environmental Protection Agency (EPA),
and that the engine is free of defects in materials and workmanship that would
cause this engine to fail to conform with EPA regulations during its warranty
period. This emission warranty is applicable in all States, except the State of
California.
For parts listed under PARTS COVERED, the dealer authorized by
Shindaiwa Kogyo Co., Ltd. will, at no cost to you, make the necessary
diagnosis, repair, or replacement of any defective emission-related component
to ensure that the engine complies with applicable U.S. EPA regulations.
Fuel Filler Cap
357
01
Oil Filler
Cap
Front Handle
Starter
Handle
MANUFACTURERS WARRANTY COVERAGE
Throttle
Lockout Lever
Throttle Lockout
Button
When sold within the U.S., this engine’s emission control system is war-
ranted for a period of two (2) years from the date this product is first delivered
to the original retail purchaser.
OWNER’S WARRANTY RESPONSIBILITIES
As the engine owner, you are responsible for the performance of the re-
quired maintenance listed in your owner’s manual. Shindaiwa Kogyo Co., Ltd.
recommends that you retain all receipts covering maintenance on your engine,
but Shindaiwa Kogyo Co., Ltd. cannot deny a warranty claim solely for the lack
of receipts or for your failure to ensure the performance of all scheduled
maintenance.
35702
35723
Muffler
Outlet
Clutch
Cover
Throttle Trigger
Ignition Switch
As the engine owner, you should however be aware that Shindaiwa Kogyo
Co., Ltd. may deny your warranty coverage if your engine or a part has failed
due to abuse, neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your engine to the nearest dealer
authorized by Shindaiwa Kogyo Co., Ltd. when a problem exists.
If your Shindaiwa Dealer is unable to answer questions regarding your
warranty rights and responsibilities, you should then contact your Shindaiwa
Distributor.
IMPORTANT!
The operational procedures de-
scribed in this manual are intended to your 357 chainsaw, or if you do not
If you have any questions regarding
help you get the most from your
machine and also to protect you and
others from harm. These procedures
are general guidelines only, and are
not intended to replace any safety
rules/laws that may be in force in
your area.
understand something in this manual,
your Shindaiwa dealer will be glad to
assist you.
For the name and telephone number of the Shindaiwa Distributor in your
area, please call Shindaiwa Inc. at (503) 692-3070 between the hours of 8:00
AM and 5:00 PM Pacific Standard Time.
5
36
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Specifications
Troubleshooting
ADDITIONAL PROBLEMS
Model ....................................................................................................................... 357
Engine Type ................................................................ 2 cycle air cooled gas engine
Displacement .............................................................................. 35.5 cc (2.17 cu.in.)
Fuel ..................... Gasoline-Oil Mixture—50:1 with Shindaiwa 2-cycle Mixing Oil
Carburetor ......................................................... Diaphragm (WALBRO Model WT)
Ignition ...................................................... All transistor electronic ignition system
Spark Plug .......................................................................................... Champion CJ6Y
................................................................. For EMC compliance use NGK BPMR7A
Starting ...................................................................................................... Auto-rewind
Stopping............................................................................Grounding (toggle switch)
Power transmission......................................................Automatic centrifugal clutch
Chain lubrication ........................................................ Automatic clutch-driven oiler
Chain ..................................................................................... 3/8" pitch, gauge 0.050"
Chain oil ................ Shindaiwa brand premium Bar and Chain Oil (or equivalent)
Fuel tank capacity ............................................................................... 265 ml (9.0 oz)
Oil tank capacity .................................................................................. 210 ml (7.1 oz)
Front/Rear Handles .............................................. Special anti-vibration mountings
Cooling system ........................................................................................... Forced air
Safety devices .......... Front guard, throttle lock, chain catcher and inertial brake
Weight (less bar and chain) ............................................................... 4.2 kg (9.3 lbs)
Symptom
Possible Cause
Remedy
Clogged air cleaner.
Clean the air cleaner element.
Replace the fuel filter.
Poor
acceleration.
Clogged fuel filter.
Chain brake engaged
Inspect and/or test brake.
Consult with an authorized
servicing dealer.
Carburetor mixture
too rich or too lean.
Adjust carburetor.
-1
Idle speed set too low.
Spark arrester clogged
Adjust: 2,600-3,000 RPM (min )
Clean spark arrester.
(See page 29).
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Set the switch to “I” (ON), re-start.
Refuel.
Engine stops
abruptly.
Clean or replace filter as required.
Drain; replace with clean fuel.
Shorted spark plug or
loose terminal.
Clean and replace spark plug.
Tighten the terminal.
Ignition failure.
Piston seizure.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Tools Included
■ Screwdriver
Ground (stop) wire is
disconnected, or switch
is defective.
Test and replace as required.
WARNING!
Engine difficult
to shut off.
■ Spark plug/13 mm socket wrench
Do not make unauthorized modifi-
cations to this saw, guide bar, or
chain!
■ 4 mm hex wrench
Overheating due to
incorrect spark plug.
Correct plug:
Champion CJ6Y. For EMC
compliance use NGK BPMR 7A
■ 5 mm hex wrench
RECOMMENDED BAR AND CHAIN COMBINATIONS
Overheated engine.
Engine idle too high.
Idle engine until cool.
Part Number
-1
Set idle: 2,600-3,000 RPM (min ).
Chain rotates
at idle speed.
Size
Chain
Bar
WARNING!
Replace spring/shoes as
required.
12-inch Oregon 91 VG-45X 36120-12
14-inch Oregon 91 VG-53X 36349-14
16-inch Oregon 91 VG-57X 36450-16
Broken clutch spring
or shoe.
Replacement chain for
this saw must meet applicable
ANSI B175.1-2000 kickback
performance requirements,
and/or be designated as “low
kickback chain” per ANSI
B175.1-2000 standards.
Worn or damaged
sprocket, chain or bar.
Inspect and replace chain
components as required.
Excessive
vibration.
Bent crankshaft.
Consult with an authorized
servicing dealer.
35
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Troubleshooting
Kickback Safety
LOW POWER OUTPUT
What To Check
Possible Cause
Remedy
WARNING!
Kickback can
happen lightning-
fast!
Operator is overworking Cut at a slower rate. Sharpen
the machine.
Is the engine
overheating?
the chain as required.
Carburetor mixture is
too lean.
Adjust the carburetor.
Improper fuel ratio.
Re-fill with fresh fuel of the
correct mixture (gasoline
and Shindaiwa 2-cycle
Mixing Oil, 50:1 ratio).
Fan, fan cover, cylinder
fins dirty or damaged.
Clean, repair or replace
as necessary.
35703
Clogged air cleaner.
Service the air cleaner.
Tighten or replace.
Engine is rough
at all speeds.
May also have
black smoke
and/or unburned
fuel at the
Loose or damaged
spark plug.
Air leakage or clogged
fuel line.
Repair or replace
filter and/or fuel line.
exhaust.
This saw is equipped with the following
safety equipment:
Water in the fuel.
Piston seizure.
Replace the fuel.
■ Operator activated and Inertial
type chain brake. In the event of
kickback, kickback energy either
forces the brake lever against the
operator's hand when the saw is
held as illustrated above activating
the chain brake and/or inertia
causes chain brake activation.When
the brake is activated, a spring-
loaded brake band is applied against
the chain drive mechanism, stop-
ping the chain rotation.
■ “Low kick” chain. When used in
combination with the appropriate
guide bar, low kick chain signifi-
cantly reduces the effects of
kickback.
Consult with an authorized
servicing dealer.
Faulty carburetor and/or Consult with an authorized
diaphragm.
servicing dealer.
Carbon deposits on the
piston or in the muffler.
Consult with an authorized
servicing dealer.
WARNING!
Brake engagement and
operation depends upon proper
inspection and maintenance
procedures! For correct proce-
dures, see page 21.
Overheating condition.
Improper fuel.
See above.
Engine is
knocking.
Check fuel octane rating;
check for presence of
alcohol in the fuel.
Refuel as necessary.
WARNING!
WARNING!
Carbon deposits in the
combustion chamber.
Consult with an authorized
servicing dealer.
To reduce the risk of kickback, all
of the above devices must be
properly installed and in good
repair. Use of other than ANSI
B175.1-2000 bar and chain
combinations may result in
reduced kickback protection!
Never operate this or any
other chain saw with only one
hand! One-handed operation
could cause serious injury to the
operator, helper, or any nearby
observers! A chain saw is in-
tended for two-handed operation!
7
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Troubleshooting
Kickback Safety Precautions
ENGINE DOES NOT START
What To Check
Possible Cause
Remedy
WARNING!
Consult with an authorized
servicing dealer.
Faulty recoil starter.
Fluid in the crankcase.
Internal damage.
Does the engine
crank?
NO
NO
NO
Either of the following reactions
could cause you to lose control of
your saw while cutting, possibly
resulting in serious injury!
■ Grip the saw firmly with your right
hand on the rear handle and your
left hand on the front handle,
thumbs and fingers encircling the
handles, whenever the saw is
running. Don't let go: A firm grip
will help you to reduce kickback
while maintaining control of the
saw.
YES
Loose spark plug.
Excess wear on
cylinder, piston, rings.
Tighten and re-test.
Consult with an authorized
servicing dealer.
Good
compression?
1. Kickback can occur whenever the
guide bar nose or tip contact an
object while the saw is running.
Tip contact may cause the guide
bar to kick upward and back
toward the operator, with a
YES
Stale, or contaminated
fuel mixture.
Re-fill with fresh fuel of
the correct mixture
(gasoline and Shindaiwa
2-cycle Mixing Oil
at a 50:1 ratio).
Does the tank
contain fresh
fuel of the
■ Accelerate the saw before the
chain contacts the work area, and
always maintain high engine
speeds throughout the cut.
proper grade?
lightning-fast reaction!
YES
2. Pinching the saw along the top of
the guide bar may push the guide
bar rapidly back toward the
operator! Pinching can occur
whenever wood closes in around
the moving chain!
Check for clogged fuel
filter and/or vent.
Clean as required;
restart.
Is fuel reaching
the cylinder and
combustion
NO
NO
■ Do not overreach or attempt to cut
above shoulder height.
■ Follow the manufacturer's
instructions for sharpening and
maintenance of the saw chain.
chamber?
YES
Is the ignition
switch ON?.
Faulty ignition ground.
Faulty ignition unit.
Move switch to “I” (ON)
position and re-start.
Consult with an authorized
servicing dealer.
Do not rely exclusively on the safety
devices incorporated with your saw.
As a chain saw user, observing the
following steps will also help you to
avoid accident or injury on the job:
Is there spark at
the spark plug
wire terminal?
■ Use only the replacement bar and
chain combinations specified by
the manufacturer.
■ Never stand directly over the saw
while cutting!
YES
If the plug is wet, excess Crank the engine with the
Check the
spark plug.
■ Sudden surprise can contribute to
accidents! With a basic under-
standing of kickback, you can
reduce or eliminate the element of
surprise.
fuel may be in the
cylinder.
plug removed, replace the
plug, and re-start.
■ Use low-kickback chain, chain
brakes, or special guide bars to
reduce the risk of kickback. Low
kickback chain is chain that has
met the kickback performance
requirements of ANSI B175.1-
2000 (American National Standard
for Power Tools-Gasoline Powered
Chain Saws-Safety requirements)
when tested on the representative
sample of chain saws below 3.8
c.i.d. specified in ANSI B175.1-
2000.
The plug is fouled
or improperly gapped.
Clean and re-gap the plug to
0.024 inch (0.6 mm). Re-start.
■ Clear obstructions from the work
area before cutting. Remove any
log, branch, or other obstruction
that might contact the guide bar
tip during cutting operations.
The plug is damaged
internally or of the
wrong size.
Replace the plug with a
Champion CJ6Y. Re-start.
For EMC compliance use
NGK BPMR 7A
33
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Sharpening the Chain (cont.)
Additional Safety Precautions
Correct Filing Technique
Slightly protruding hook
or point (curve on non-
chisel chain)
Correct angle on
top plate
0.020"
WARNING!
A
A=B
B
Top of depth
gauge at correct
height below top
plate
■ Never allow young children or any
person unfamiliar with chain saws
to operate this saw!
NOTE:
CHN-01
These safety precautions are
intended primarily for consumers or
occasional users. When using this
chain saw for logging purposes, refer
to: CFR Section 1910. 266 (5); 2.5.1
of the American National Safety
Standard; Requirements for Pulp-
wood Logging ANSI 03.1-1978; and
any applicable state safety codes.
Keep all cutter lengths equal
■ Clear the work area before using
the saw. Never start cutting until
you are sure you have a secure
footing and have planned a retreat
path from the falling tree.
Front of depth
gauge rounded
CHN-08
Filing Problems
■ Before starting the saw engine,
make sure nothing is touching the
saw chain.
Top plate angle
less than
recommended
Top plate angle
Cause
Cause
more than
recommended
File held at less than
recommended angle.
Result
Slow cutting. Requires extra
effort to cut.
File held at more than
recommended angle.
Result
■ Never operate this chain saw with
one hand! One-handed operation
could cause you to lose control,
causing serious injury to yourself
or others! A chain saw is intended
for two-handed use.
■ Keep all parts of your body away
from the saw chain whenever the
engine is running!
CHN-06
CHN-07
Cutting angle is very sharp
but will dull fast. Cutting
action rough and erratic.
Remedy
File cutters to recommended
angle.
60°
30°
Remedy
■ Stop the engine before carrying
the saw. Carry the saw with the
engine stopped, the guide bar and
saw chain pointing to the rear, and
the engine muffler away from your
body.
File cutters to recommended
angle.
■ Wear safety footwear, snug-fitting
clothing, protective gloves, and
eye, hearing, and head-protection
devices while working with this
chain saw.
Hook in side
plate cutting
edge
Backslope on
side plate
Cause
Cause
File held too low or the file
was too small.
File held too high or the file
was too large.
cutting edge
■ Never operate this chain saw if
you are fatigued.
Result
Result
■ Do not allow other persons to be
near the chain saw when starting
or running the chain saw. Keep
bystanders and animals out of the
work area.
Rough cutting. Chain grabs.
Cutters dull quickly or won’t
hold a cutting edge.
Remedy
File cutters at recommended
angle. Check file size.
Cutters won’t feed into wood.
Slow cutting. Must force
chain to cut. Causes
excessive bottom wear.
Remedy
■ Stop the engine before setting the
chain saw down.
CHN-02
CHN-03
File cutters at recommended
angle. Check file size.
High depth
gauge
Low depth
gauge
Cause
Depth gauge never filed.
Result
Cause
Wrong gauge setting or no
gauge used.
Slow cutting. Must force
chain to cut. Will cause
excessive wear on the cutter
heel.
Result
Rough cutting. Chain grabs.
Saw won’t pull chain through
wood. Excessive wear on the
cutter heel.
CHN-05
CHN-04
Remedy
Lower gauges to recom-
mended setting.
Remedy
If depth gauges are too low,
the chain is no longer
serviceable.
9
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Sharpening the Chain
Additional Safety Precautions (cont.)
WARNING!
■ Install the appropriate guide-bar
scabbard before transporting the
saw.
■ Keep the saw handles dry, clean
and free of oil or fuel mixture.
■ Never operate any saw while in a
tree unless you have been specifi-
cally trained to do so!
■ Never operate a saw that is
damaged, improperly adjusted, or
not completely and securely
assembled.
Using a filing gauge
■ Never perform service or repairs
to this saw unless you are specifi-
cally trained and equipped to do
so!
■ Use only Shindaiwa-recommended
parts when repairing or servicing
this saw.
■ Improper maintenance, use of
nonconforming replacement
components, or the removal of
safety devices, such as the chain
brake or any of the chain brake
components, could result in
serious injury.
■ Do not use this saw if the saw
chain continues to move after the
throttle control trigger is released.
Using a depth
gauge joiner
CHN-18
■ Use extra care when cutting a
limb that is under tension! A limb
under tension could spring back
suddenly, causing you to lose
control of the saw!
CHN-19
■ Never allow any part of your body
near the clutch cover of an
operating saw.
Using a flat file to round
the front corner on a
depth gauge
■ Use extreme caution when cutting
smaller brush and saplings! Small-
diameter material may catch in the
chain and be whipped toward you
or pull you off balance, causing
you to lose control of the saw!
■ Never operate a saw with dam-
aged or missing anti-vibration
cushions. Long-term exposure to
vibration can damage your hands.
Sharpening Technique
1. Using a 5/32" round file, sharpen all 2. After all cutters are sharpened, use
cutters to a 30° angle .
a depth gauge joiner (Oregonா
p/n 106738 or equivalent) to
measure the height of each depth
gauge.
■ Always maintain a firm footing
while operating this saw! Ladders
and other temporary platforms can
shift unexpectedly, and are not
recommended!
■ Operate the saw only in a well
ventilated area.
IMPORTANT!
File all cutters to the same angle and
depth! Unequal filing may cause the
saw to vibrate or cut erratically!
3. As required, lower the depth gauges
to a height of 0.020"
NOTE:
(0.5 mm). Use a flat file; Oregon p/
n 12211 or equivalent.
For consistent filing angles, use a filing
guide such as Oregonா
p/n 37534 or equivalent.
4. After all depth gauges have been
adjusted, use a flat file to round each
depth gauge leading edge to its
original curvature and angle.
31
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Saw Chain
Installing and Adjusting the Guide Bar and Saw Chain
a
PRESS
DOWN
Pull back
35705
b
CHN-09
35707
35706
1. Remove the clutch
cover nuts.
3. Remove the clutch
cover
2. Unhook the brake lever
support arm.
1.
Your saw’s performance on the job
depends greatly on the condition of its
saw chain.
2.
3.
4.
IMPORTANT!
3. Disengage the clutch cover retain-
ing hook by pressing the cover as
shown, and then remove the clutch
cover.
3. The top plate peels the severed
wood chip away.
The chain brake must be completely
disengaged before removing or
installing the clutch cover!
4. The chip is discharged out the rear
of the cutter.
How the saw chain works
4. Remove and discard the packing
spacer.
1. Use the 13 mm socket wrench to
remove the clutch cover nuts. Turn
the nuts counter-clockwise to
remove.
As the chain is pulled through the
wood:
IMPORTANT!
5. Place the guide bar over the guide
bar studs and chain tensioner pin. If
necessary, turn the chain tension
screw in or out until the loop slips
easily over the guide bar tip.
Most of the actual cutting is done by
the sides and corners of the individual
cutters.
1. The depth gauge determines the
depth of cut for the cutter.
2. Slide the rubber stopper downward
and unhook the support arm from
the brake lever (see illustration
below).
2. The cutter’s leading edge enters
the wood, causing the entire cutter
to “rock back” and lift away from
the bar.
Continued on next page.
Stopper
11
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Installing and Adjusting the Guide Bar and Saw Chain
Spark Arrester
Long Term Storage
(over 30 days)
Hard starting or a gradual loss of
performance can be caused by carbon
deposits lodged in the spark arrester
screen. For maximum performance,
the spark arrester screen should be
periodically cleaned as follows:
■ Thoroughly clean the saw exterior.
Brake lever
support arm
■ Remove all chips and other debris
from the cylinder fins and cooling
passages.
57704
4. Remove the
packing spacer.
■ Drain the fuel tank, and then clear
the carburetor and lines by running
the saw until it stops from lack of
fuel.
1. Unscrew the two clutch cover nuts,
and remove the clutch cover (see
page 11).
2. Use a screwdriver to remove the
two spark arrester retaining
CAUTION!
35708
screws, and then remove the spark
arrester cover and screen.
Never store the saw with any fuel
remaining in the tank, fuel lines, or
carburetor!
5. Install the
Tensioner Pin
guide bar.
Your Shindaiwa warranty does not
include coverage for damage caused
by “stale” or contaminated fuels!
Spark
Arrester
Cover
Top of Bar
BAR
TIP
■ Drain any remaining bar oil from
the oil reservoir.
Bottom of Bar
CHN-14
■ Remove the spark plug, and then
pour about 1/4-oz of 2 cycle mixing
oil into the cylinder through the
spark plug hole. Before reinstalling
the spark plug, slowly pull the recoil
starter 2 or 3 times to distribute the
oil over the cylinder walls.
35722
Engine
Muffler
6. Install the
chain loop.
Spark Arrester
Screen
3. Use a plastic scraper or wire brush
to remove carbon deposits from the
arrester screen and cover.
■ Remove, clean, and reinstall the air
filter element as described under
“Daily Maintenance’’.
35709
4. Inspect the screen carefully, and
replace any screen that has been
perforated, distorted, or is other-
wise unserviceable.
■ Repair or replace any damaged
components as required, and then
store the machine in a clean, dry,
dust-free area.
CAUTION!
WARNING!
Failure to align the guide bar and
Never start the engine
chain tensioner pin as shown can
without the clutch cover
cause serious damage to the
clutch cover, guide bar, tensioner
pin and/or engine crankcase!
installed!
5. Install the screen and cover in the
reverse order of disassembly, and
then tighten the two cover retaining
screws securely.
7. Install the clutch cover over the two
bar studs, and then engage the
brake lever and support arm. Install
the two 13 mm bar nuts and tighten
finger-tight only.
6. Install the chain loop over the drive
sprocket, and then align the chain
drive links within the guide bar
groove. Make sure the cutters are
properly oriented.
6. Install the clutch cover and cover
retaining nuts in the reverse order
of removal, and then tighten both
nuts securely.
29
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10/15 Hour Maintenance
40/50 Hour Maintenance
Installing and Adjusting the Guide Bar and Saw Chain
■ Replace the spark plug with a
Champion CJ6Y (or equivalent),
gapped to 0.024" (0.6 mm). For EMC
compliance use NGK BPMR 7A.
Chain
Adjusting
Screw
■ Extract the fuel filter from inside the
fuel tank. Remove and wash both
filter elements in clean fuel. If you
discover damage or deterioration to
the fuel lines or other fuel system
components, remove the saw from
service until it can be inspected by a
Shindaiwa-trained service technician.
57707
35719
■ Remove and clean the spark plug.
Adjust the spark plug gap to 0.024"
(0.6 mm), and reinstall. If a torque
wrench is available, torque the plug
to 148–165 in.-lbs. Replace a
35710
Check the gap between chain side
plates and the bar rail
■ Hard-nose Guide Bar Gently lift
the chain at about mid-bar. Tension
is correct when there is a gap of
3–3.5 mm (about 0.125") between
damaged or visibly worn plug with
a Champion CJ6Y or For EMC
compliance use NGK BPMR 7A.
the chain side plates and the bar
rail.
Turn clockwise to tighten
the chain (extend the
guide bar)
CAUTION!
Incorrect spark plug installation
can result in serious engine
damage!
Never allow chips or other
debris to enter the cylinder bore!
Before removing the spark plug,
thoroughly clean the spark plug
and cylinder head area!
■ Sprocket-nose Guide Bar The
chain should be adjusted slightly
tighter than on a hard-nose bar, but
must still pull freely around the bar.
35720
IMPORTANT!
Proper chain adjustment is essential
for maximum performance, chain life,
and operator safety. Always inspect
chain tension before operating the saw!
10.Tighten both bar nuts securely,
making sure chain adjustment is
correct for the type of bar installed.
Adjusting Chain Tension in the
Field Stop the saw, loosen both bar
nuts about 1 turn each, then repeat
Steps 8 through 10 (above). Never
operate the saw when the chain is
loose!
NOTE:
■ Remove the guide bar and chain.
Carefully inspect the drive sprocket
for wear or damage, and replace if
needed. Inspect the guide bar
grooves and tip for wear or dam-
age, and repair or replace compo-
nents as required.
For longest chain life, place new or
replacement chain loops in oil and soak
overnight before installation.
CAUTION!
The fuel line can be punctured or
torn by careless handling! Never
use sharp or jagged-edged tools to
extract the fuel line.
8. Place the saw on a flat surface, and
lift the bar nose slightly.
WARNING!
Inspect chain tension
often during operation,
9. To adjust chain tension:
IMPORTANT!
■ turn the chain tension screw
clockwise to tighten the chain.
Always replace the drive sprocket and
cutting chain loop as a set! For
economy, rotate the same 2 or 3
chains daily. When these chains are
worn out, replace both the chains and
the sprocket at the same time.
especially when breaking in a new
chain. A loose saw chain can
unexpectedly jump the guide bar
during operation, possibly causing
serious personal injury!
■ turn the chain tension adjuster
counter-clockwise to loosen the
chain.
13
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Mixing Fuel/Filling With Fuel
Daily Maintenance
IMPORTANT!
CAUTION!
WARNING!
WARNING!
MAINTENANCE, REPLACEMENT,
OR REPAIR OF EMISSION CON-
TROL DEVICES AND SYSTEM MAY
BE PERFORMED BY ANY REPAIR
ESTABLISHMENT OR INDIVIDUAL.
HOWEVER, WARRANTY REPAIRS
MUST BE PERFORMED BY A
DEALER OR SERVICE CENTER
AUTHORIZED BY SHINDAIWA
KOGYO, LTD. AND USE OF PARTS
THAT ARE NOT EQUIVALENT IN
PERFORMANCE AND DURABILITY
TO AUTHORIZED PARTS MAY
IMPAIR THE EFFECTIVENESS OF
THE EMISSION CONTROL SYSTEM
AND MAY HAVE A BEARING ON
THE OUTCOME OF THE WAR-
RANTY CLAIM.
Ⅵ Some types of gasoline contain
alcohol. Never use any type of
gasoline containing more than
10% alcohol by volume! More
than 10% alcohol by volume
may affect the lubricating
Before performing any
maintenance on this saw,
stop the engine and disconnect
the spark plug wire!
Minimize the risk of fire burns and
personal injury!
■ STOP engine before refueling.
■ ALWAYS allow the engine to
cool before refueling!
■ ALWAYS open the fuel cap
slowly to allow any pressure
build-up in the tank to release
fuel vapor slowly.
■ Wipe all spilled fuel and move
the engine at least 10 feet (3
meters) from the fueling point
and source before restarting!
■ NEVER start or operate this
unit if there is a fuel leak.
■ NEVER start or operate this
unit if the carburetor, fuel lines,
fuel tank and/or fuel tank cap
are damaged.
■ Remove dirt and debris from the
saw exterior, cylinder fins, and
cooling air intake.
qualities of 2-cycle engine oils
reducing engine life and/or
causing engine failure.
■ Inspect the saw for fuel and oil
Ⅵ Generic engine oil and marine
engine oil may not be intended
for use in high-performance 2-
cycle engines and should never
be used in Shindaiwa engines.
Engine oils not intended for use
high-performance air-cooled 2-
cycle engines can cause
leaks. Repair as necessary.
■ Remove
the air
cleaner
cover and
element.
Wash both
parts with
soap and
excessive carbon deposits,
reduce engine life and/or cause
engine failure.
water. Let
35718
■ NEVER smoke or light any
fires near the engine or fuel
source!
■ NEVER place any flammable
material near the engine
dry before
reassembly.
NOTE:
Shindaiwa offers two performance
levels of 2-cycle air-cooled engine oils,
Shindaiwa 2-Cycle Engine Oil and
Shindaiwa ONE High Performance 2-
Cycle Engine Oil. Shindaiwa 2-Cycle
Engine Oil is designed to meet the
lubrication demands of most 2-cycle
air-cooled engines. Shindaiwa ONE
High Performance 2-Cycle Engine Oil
is recommended when superior
lubrication is needed to help protect
engines used in severe operating
conditions. Shindaiwa ONE also
contains a fuel stabilizer to help
maintain fuel quality when fuel is
stored longer than 30 days.
CAUTION!
muffler!
Never allow chips or other debris to
enter the carburetor bore! Avoid
forcing dirt into the air filter
element! When using compressed
air to dry the element, blow only on
the inside (carburetor side) face of
the element!
■ NEVER operate the engine
without the muffler and spark
arrester in good working condition.
IMPORTANT!
Shindaiwa high-performance 2-cycle
engines are designed to operate on a
50:1 mixture of unleaded gasoline
and 2-cycle engine oil. Using a fuel
mixture less than 50:1 ratio (such as
80:1 or 100:1) can cause cata-
strophic engine failure!
■ Sharpen and adjust the chain as
required.
■ Clean the guide bar groove and oil
hole. Inspect the bar groove and tip
for damage or unusual wear. Repair
or replace components as necessary.
1. Use only fresh, clean unleaded
gasoline with a pump octane rating
of 87 or higher.
■ Inspect the entire saw for damage,
including loose or missing compo-
nents or fastenings. Repair as
necessary.
2. Mix fuel with a 2-cycle engine oil
designed for use in high-perfor-
mance 2-cycle air-cooled engines.
27
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Bucking
Mixing Fuel/Filling With Fuel (cont.)
3. Refer to following chart for
examples of 50:1 fuel to oil mix
quantities.
5. Remove the fuel cap and fill the tank
WARNING!
with clean, fresh 2-cycle fuel mix.
Avoid overfilling and fuel spillage.
Always cut downed timber from the uphill side of the tree!
Downed timber may shift or roll unpredictably during cutting or
handling. Be alert for potential injury from rolling or shifting logs!
4. Place the saw on a hard surface with 6. Wipe any spilled fuel and move the
the fuel cap up and wipe any chips
or debris from around the fuel cap.
saw at least 10 feet (3 meters) from
the fueling point before starting the
engine.
First Cut
Second Cut (overbuck)
Gasoline
U.S. Gal.
1 gal. ................ 2.6 oz.
2 gal. ................. 5.2 oz.
2.5 gal. .............. 6.4 oz.
5 gal. ................. 12.8 oz.
2-cycle oil
U.S. fl. oz.
Gasoline
liters
2.5 l ................... 50 ml
5 l ...................... 100 ml
10 l .................... 200 ml
20 l .................... 400 ml
2-Cycle Oil
milliliters
CHN-12
Second Cut
CHN-13
Bar Oil/Filling With Oil
If the log is well supported, start your
Oil Requirements
cut from the top of the log. Keeping
the guide bar parallel to the ground,
cut straight down but do not allow the
saw to cut into the ground.
Ⅵ When available, use Shindaiwa
Premium bar & chain oil.
First Cut (underbuck), about
1/3 tree diameter
Ⅵ When Shindaiwa oil is not available,
use a premium 30-weight oil
specifically blended for bar & chain
lubrication.
Use two cuts when bucking the
outboard end of an unsupported log.
Your first cut should be an under-
buck. Cut the underbuck about 1/3
the diameter of the tree, then move to
the top of the log and finish the cut by
bucking down (overbucking) to the
first cut.
NOTE:
Cutting downed timber, or “bucking,”
increases the possibility of the wood
settling and pinching the guide bar.
Driving one or more soft plastic or
wooden bucking wedges can help
prevent bar-pinching during a cut.
Ⅵ For cold weather operation, bar oil
may be thinned by mixing with
clean kerosene at a ratio of 1:1.
35711
Fuel Cap
Oil Cap
Filling the Oil Reservoir
Ⅵ Filling the Oil Reservoir Place the
saw on its side (clutch cover
down), and wipe any chips or
debris from around the oil cap.
Ⅵ Remove the oil cap at the front of
LIMBING
the saw.
Ⅵ Fill the oil reservoir with bar &
Limbing a standing tree is usually
accomplished in the same manner as
bucking, with a third and final cut used
to remove the remaining stub of the
limb.
NOTE:
chain oil, and replace the cap.
When cutting unsupported logs or
limbs, starting with an underbuck cut
will minimize the possibility of the
wood splitting during the bucking cut.
Ⅵ Wipe spilled oil from handles and
controls before starting the saw.
CAUTION!
Use two cuts when bucking near the
inboard end of an unsupported log.
WARNING!
Do not overreach or
attempt to cut above
shoulder height!
Proper lubrication is critical to
the performance and service life
of your saw's oil pump, guide
bar, and saw chain! Always use
a high quality lubricating oil
designed for saw chain lubrica-
tion! Never use dirty or re-
claimed oil!
■ Make the first cut as an underbuck
about 1/3 the diameter of the log.
■ Finish the job from above with an
overbuck joining the first cut.
15
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Preparing to Start the Saw
Felling Trees (cont.)
Felling Small Trees
(less than 6 inches in diameter)
1. Determine the direction of fall. If
you are uncertain as to direction of
fall, use the procedure “Falling
Large Trees”.
NOTE:
Throttle Lock
Button
Throttle Lockout
Lever
If the felling cut appears to be closing
on the bar, use a mallet to drive one or
two plastic or wooden wedges into the
cut behind the bar.
5. Stop the saw, and put it down.
2. Start cutting on the side of the tree
away from the direction of fall, and
make a single felling cut all the way
through the tree.
6. Use your retreat path to exit the
area quickly.
Ignition
Switch
WARNING
Failure to leave a wooden
3. Stop the saw and put it down on the
ground.
Throttle
Trigger
35712
hinge during the felling or
“back cut” can cause the tree to
pinch the saw’s guide bar, and may
also change the direction of fall!
Always make the felling cut
parallel to the bottom cut! An
angled falling cut may cause the
tree to split, possibly changing the
direction of fall!
4. Use your retreat path to exit the
area quickly.
WARNING!
The saw chain will rotate
when the saw is started!
Clear a safe work area before
starting the saw!
Felling Large Trees
(more than 6 inches in diameter)
If a tree is otherwise healthy and not
seriously out of balance, its direction of
fall can often be encouraged by first
“notching” the tree on the side facing
the desired direction of fall.
After the notch is completed, start
the felling cut slightly higher and on
the opposite side of the tree, away from
the direction of fall.
IMPORTANT!
Engine ignition is controlled by a two-
position “ON-OFF” switch located
below the throttle lever. This switch is
labeled “I” for ON and “O” for OFF.
Direction of
Fall
Pull the choke
control out to
close.
Hinge
The goal of this method is to leave a
sturdy wooden “hinge” on which the
tree will pivot while it’s falling.
Control Positions (cold engine)
Notch
Felling
Cut
1. Switch the ignition ON
(“I” position).
Control Positions (warm engine)
■ Set the throttle to “fast idle” (as
1. Determine the direction of fall.
2. Choke the engine by pulling the
choke control all the way out (choke
is closed).
2. On the side of the tree facing the
direction of fall, make a single 90°
cut through about 1/3 the tree’s
diameter.
discribed in step 3).
CHN-11
IMPORTANT!
3. Set the throttle to “fast idle” by
performing the following:
The throttle lever cannot be moved
without first depressing the lockout
lever.
Felling Large Trees
3. Make a second cut at a 45° angle to
the first cut to remove a notch from
the tree.
■ Depress the throttle lockout lever.
■ Squeeze the throttle trigger.
■ Press and hold the throttle lock
button while releasing the throttle
trigger.
4. Make the final felling cut on the
opposite side of the tree about 2
inches above the bottom of the
notch.
25
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Felling Trees
Starting the Saw
NOTE:
The Shindaiwa 357 Chain Saw is
equipped with a sliding trigger exten-
sion to improve comfort when operat-
ing the saw in a variety of hand grip
positions. When not needed, keep the
extension retracted.
Direction
of Fall
45°
Escape
Path
45°
CHN-10
Trigger Extended
Before Felling a Tree
1. Determine the direction of fall by
inspecting:
■ Tree shape and angle of lean.
■ Size, shape and placement of
limbs.
■ Location of nearby trees or other
35714
obstacles.
Trigger Retracted
■ Condition of the tree (damage,
disease, etc.).
■ Prevailing wind direction.
1. Place the saw on the ground.
2. Secure the saw firmly as shown.
When the engine starts:
2. Clear a safe work area around the
tree. Be alert for loose or dead limbs
overhead. Clear an appropriate
escape path approximately 45° from
the direction of fall.
1. Push the choke control all the way
in (choke is open).
3. Grip the starter handle with your
right hand, pull the starter cord
slowly until you feel the starter
engage, then…
2. If the engine did not continue to
run, pull the recoil again.
35717
3. As the engine starts, clear excess
fuel from the combustion area by
revving the engine several times.
3. Notify nearby workers of your
intentions!
4. Start the saw by pulling the starter
cord upward rapidly.
CAUTION!
The recoil starter can be easily
damaged by abuse!
WARNING!
The saw chain will move
as the engine accelerates!
■ Never pull the starter cord to its
4. Operating the throttle will automati-
cally disengage the fast-idle setting.
full length.
■ Always engage the starter
If the engine does not start:
before cranking the engine.
Repeat the appropriate starting
procedure for a hot or cold engine. If
the engine still will not start, follow the
“Starting a Flooded Engine” procedure
(next page).
■ Always rewind the starter cord
slowly.
17
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Starting a Flooded Engine
Cutting with the Saw
1. Disconnect the spark plug lead,
then use the spark plug wrench to
remove the spark plug (turn
IMPORTANT!
THINK SAFETY!
Use full throttle while cutting! Forcing
the saw into the work reduces cutting
performance and also increases
operator fatigue!
counter-clockwise to remove).
2. If the spark plug is fouled or is
soaked with fuel, clean or replace
the plug as required. For correct
spark plug size and gapping
procedure, see page 26.
Stop the saw before moving it
from the work area.
Clear a safe work area
before cutting.
Always wear hearing
protection (ear plugs or ear
muffs) to protect your
hearing
3. Clear excess fuel from the combus-
tion chamber by cranking the
engine several times while the
spark plug is removed.
Always wear eye
protection such as a face
4. Replace the spark plug and tighten
it firmly with the spark plug
shield or goggles.
Use full-throttle while
cutting, and apply
only enough bar
pressure to maintain
engine speeds of
7000-8000 rpm.
wrench. If a torque wrench is
available, torque the spark plug to
140–165 inch-pounds (170–190
Always wear gloves
when operating the
saw.
35719
●
kgf cm).
CAUTION!
Incorrect spark plug installation
can result in serious engine
damage!
Wear close-fitting
5. Repeat the starting procedure for a
warm engine.
clothing to protect your
legs and arms. Do not
wear clothing or jewelry
that could get caught in
machinery or brush.
6. If the engine still fails to fire or
start, refer to the troubleshooting
chart at the end of this manual.
Stopping
Turn the switch ”OFF‘‘ after idling at
low speed for 1 to 2 minutes.
Never operate with a loose
cutting chain!
Never operate the saw if
fastenings are loose or
missing!
Never operate the saw if any
component parts are dam-
aged, loose, or missing!
35716
Keep a proper footing—do
not overreach!
Wear appropriate
non-skid footwear.
23
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Chain Brake (cont.)
Carburetor Adjustments
High-speed Mixture Adjustment Screw
(Non Emission Compliance Engines Only)
Chain Brake Maintenance
Low-speed
Mixture
Adjustment
Screw
■ Keep the brake mechanism clean
and free of sawdust or debris.
Choke
Control
■ If the chain brake becomes dam-
aged or worn, or fails to completely
engage or release the clutch drum,
return the saw to your dealer for
repairs.
Idle Adjust-
ment Screw
CAUTION!
■ Never start or operate this saw
while the chain brake is
engaged!
35715
■ Never carry the saw by the
brake lever! Carry the saw by
the front handle.
A clean and unrestricted airflow is
essential to your saw engine’s perfor-
mance and durability! Before attempt-
ing any carburetor adjustments,
inspect and clean the engine air filter
as required! Procedures for maintain-
ing this saw’s air cleaner are described
on page 27 of this manual.
Low and High Mixture Adjust-
ments for Emission Compliance
Engines.
■ Always disengage the chain
brake before removing or
replacing the clutch cover!
35721
Low Speed Mixture (engine idling
at operating temperature)
■ Never make carburetor
adjustments while the chain
brake is engaged!
Chain Brake Inspection
(engine “off”)
1. Turn the engine “off,” and make
sure the ignition switch is in the
“O” or “off” position.
1. Using a small screwdriver, slowly
turn the low speed mixture screw
clockwise (lean mixture), and note
any changes in engine rpm. See
illustration above.
Before starting the engine
1. Inspect saw chain tension, and
adjust if necessary. (see page 13)
2. Hold the saw with the bar tip 12 to
20 inches (30-50 cm) above a soft
wood block.
2. Next, turn the low speed mixing
screw counter-clockwise (rich
mixture) and note any changes in
engine rpm.
2. Make sure the chain brake is
disengaged, and that the saw chain
is free to rotate.
3. Quickly release the front handle,
allowing the guide bar tip to strike
the wooden block.
Start the engine, warm the engine to
operating temperature. Place the saw
on the ground, and adjust the
caburetor as follows:
3. Adjust the low speed mixture screw
to provide the smoothest possible
idle with no sacrifice in accelera-
tion.
4. The chain brake must engage as
soon as the bar tip strikes the
wood.
4. If necessary, readjust the idle speed
screw for an engine idle speed of
2,600-3,000 rpm (min-1).
Idle speed adjustment
(engine idling)
Use a screwdriver to slowly turn the idle
speed adjusting screw in or out until the
engine idles at 2,600-3,000 rpm (min-1).
WARNING!
The above procedure
must cause the chain
High Speed Mixture
brake to engage! If the chain brake
does not fully engage during this
test, do not operate the saw! Return
the saw to your dealer for repairs!
High-speed adjustments are factory
set and can not be adjusted.
WARNING!
The saw chain must never
rotate at engine idle speed!
19
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Carburetor Adjustments (cont.)
Chain Brake
Low and High Mixture Adjust-
ments for Non Emission Compli-
ance Engines.
1. No adjustment is necessary when
the saw is new.
Chain can rotate
2. After approximately 10 hours
running, readjust the H-needle to
1 1/4 turns (± 1/4 turn).
Low Speed Mixture (engine idling
at operating temperature.
1. Using a small screwdriver, slowly
turn the low speed mixture screw
clockwise (lean mixture) and note
any changes in engine rpm.
Low and High speed adjustment.
Standard opening.
L ........................... 1 1/8 ± 1/4 turn
H........................... 1 1/4 ± 1/4 turn
“Standard opening’’ means number
of turns from the fully closed
position by turning needle gently
counter-clockwise.
2. Next, turn the low speed mixture
screw counter-clockwise (rich
mixture) and note any changes in
engine rpm.
Chain is stopped
3. Adjust the low speed mixture screw
to provide the smoothest posible
idle with no sacrifice in engine
acceleration.
35704
4. If necessary, readjust the idle speed
screw for an engine idle speed of
2,600-3,000 rpm (min-1).
Chain Brake Operation
The Shindaiwa 357 saw is equipped with
an inertial chain brake that stops the
saw chain whenever the brake lever is
moved to the forward (engaged)
position.
High Speed Mixture
WARNING!
The chain brake is
installed only to reduce
the risk of injury from kickback!
The chain brake is not a substitute
for careful operation!
CAUTION:
Do not run saw at full throttle with
no load. If run in this condition,
seizure can occur.
■ Engaging the brake lever causes a
brake band to tighten around the
clutch drum, stopping the chain.
IMPORTANT!
■ The chain brake is designed to
engage whenever the brake lever
strikes the operator’s hand.
CAUTION:
Release the throttle whenever the
chain brake is activated!
Do not adjust H-speed needle to
less than 1 turn. If run at less than 1
turn, seizure can occur.
■ The chain brake can also be
activated by pushing the brake
lever forward manually.
■ To release (disengage) the chain
brake, pull the brake lever toward
you.
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