English...................1
Francais...............25
Italiano.................49
SHINDAIWA OWNER’S/OPERTOR'S MANUAL
T350 GRASS TRIMMER
C350/B450 BRUSHCUTTER
T350
C350/B450
Read this manual and familiarize yourself with its contents.
This machine is designed for cutting grass, weed, and bushes.
Do not use this machine for other purposes.
Minimize the risk of injury to yourself and others.
Do not operate or service this machine unless you clearly understand
this manual.
Keep this manual at a particular place so that you can reread it whenever you have a question about its use.
Part Number 62102-94310 Rev. 02/05
WARNING!
Introduction
Shindaiwa 350 and 450-series hand held
power equipment has been designed and
built to deliver superior performance and
reliability without compromise to quality,
comfort, safety or durability.
Shindaiwa’s high-performance engines
represent the leading edge of 2-cycle
engine technology, delivering exceptionally
high power with remarkably low displacement and weight. As an owner/operator,
you’ll soon discover for yourself why Shindaiwa is simply in a class by itself!
IMPORTANT!
The information contained in this owner's/
operator's manual describes units available at the time of publication.
Shindaiwa Inc. reserves the right to
make changes to products without prior
notice, and without obligation to make alterations to units previously manufactured.
Attention Statements
Throughout this manual are special attention statements.
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.
CAUTION!
A statement preceded by the word
“CAUTION” contains information that
should be acted upon to prevent mechanical damage.
IMPORTANT!
A statement preceded by the word
“IMPORTANT” is one that possesses
special signicance.
IMPORTANT!
The operational procedures described in
this manual are intended to help you get
the most from unit as well as to protect
you and others from harm. These procedures are guidelines for safe operation under most conditions, and are not intended
to replace any safety rules and/or laws
that may be in force in your area. If you
have questions regarding your Shindaiwa
power tool, or if you do not understand
something in this manual, your Shindaiwa
dealer will be glad to assist you. You may
also contact Shindaiwa, Inc. at the address printed on the back of this manual.
Contents
Page
Attention Statements .................................. 2
General Safety Instructions ....................... 3
Safety Labels ................................................ 5
Checking Unit Condition............................ 5
Unit Description .......................................... 6
Specifications ............................................... 6
Assembly Procedure ................................... 7
Mixing Fuel ............................................... 12
Starting the Engine ................................... 13
Stopping the Engine ................................. 14
Adjusting Engine Idle ............................... 14
Shoulder Strap/Harness .......................... 14
Operation .................................................. 15
Using a Brush Cutter
With a Trimmer Head .................. 16
Maintenance .............................................. 16
NOTE:
A statement preceded by the word “NOTE”
contains information that is handy to know
and may make your job easier.
Read and follow this operators
manual. Failure to do so could
result in serious injury.
Wear head, eye, and hearing
protection during the operation
of this machine.
Wear non-slip gloves, long
trousers and non-skid boots
during the operation of this
machine.
make sure no one is within 15
meters os an operating machine.
Beware of thrown objects.
Long Term Storage ................................... 18
Blade Sharpening ...................................... 18
Troubleshooting Guide ............................ 19
Declaration of Conformity ........................ 22
2
The maximum speed of the
cutting attachment shaft in min-1.
Sound Power Level (measured
in accordance with 2000/14/EC)
General Safety Instructions
Work Safely
Trimmers and brushcutters operate at very
high speeds and can do serious damage or
injury if they are misused or abused. Never
allow a person without training or instruction to operate this unit!
WARNING!
Never make unauthorized attachment
installations.
WARNING!
Use Good Judgment
NEVER run the engine when transporting the unit.
NEVER run the engine indoors! Make
sure there is always good ventilation. Fumes from engine exhaust can
cause serious injury or death.
ALWAYS use the proper cutting tool
for the job.
ALWAYS stop the unit immediately if
it suddenly begins to vibrate or shake.
Inspect for broken, missing or improperly installed parts or attachments.
NEVER extend trimming line beyond
the length specied for your unit.
ALWAYS keep the unit as clean as
practical. Keep it free of loose vegetation, mud, etc.
ALWAYS hold the unit rmly with both
hands when cutting or trimming, and
maintain control at all times.
ALWAYS keep the handles clean.
ALWAYS disconnect the spark plug
wire before performing any
maintenance work.
ALWAYS, if a saw blade should bind
fast in a cut, shut off the engine immediately. Push the branch or tree to
ease the bind and free the blade.
Stay Alert
You must be physically and mentally fit to
operate this unit safely.
WARNING!
Never operate power equipment of any kind if you are
tired or if you are under the inuence of
alcohol, drugs, medication or any other
substance that could affect your ability
or judgement.
3
The Properly Equipped Operator
Wear hearing protection devices and a
broad-brimmed hat or helmet.
Wear close-tting clothing to protect legs and arms.
Gloves offer added protection and are strongly recommended. Do not wear clothing or jewelry that could get
caught in machinery or
underbrush. Secure long hair so that it
is above shoulder level.
NEVER wear shorts!
Keep a proper footing and do not overreach.
Maintain your balance at all times during operation.
Wear appropriate footwear (non-skid
boots or shoes): do not wear opentoed shoes or sandals. Never work
barefooted!
Always wear eye protection such as
goggles or safety glasses to shield
against thrown objects.
Always wear a harness when operating
a unit equipped with a blade.
Always operate with both hands rmly grip-
ping the unit.
When operating with a blade, make sure the
handle is positioned to provide you with maxi-
mum protection from contacting the blade.
Always make sure the appropriate cutting
attachment shield is correctly installed and in
good condition.
Keep away from the rotating
trimmer line or blade at all
times, and never lift a moving
attachment above waist-high.
Be Aware of the Working Environment
Avoid long-term opera-
tion in very hot or very
cold weather.
If contact is made with a hard
object, stop the engine and
inspect the cutting attachment for
damage.
or observers outside the
15 meter “danger zone”
Be extremely careful of slip-
pery terrain, especially during
Be constantly alert for objects and debris
that could be thrown either from the rotating
cutting attachment or bounced from a hard
surface.
SAFETY
rainy weather.
Always make sure
the appropriate cutting
attachment shield is
correctly installed.
Make sure bystanders
wear eye protection.
Reduce the risk of bystanders
being struck by ying debris. Make
sure no one is within 15 meters
— that’s about 16 paces — of an
operating attachment.
15
METERS
Beware of a coasting blade when brushcut-
ting or edging. A coasting blade can injure
while it continues to spin after the throttle
trigger is released or after the engine is
stopped.
ALWAYS clear your work area of trash or
hidden debris that could be thrown back at
you or toward a bystander. When operating in
rocky terrain or near electric wires or fences,
use extreme caution to avoid contacting such
items with the cutting attachment.
4
Safety Labels
T350
IMPORTANT!
Safety and Operation Information
Labels: Make sure all information labels are undamaged and
readable. Immediately replace
damaged or missing information
labels. New labels are available
from your local authorized Shindaiwa dealer.
C350/B450
Checking Unit Condition
WARNING!
A cutting attachment shield or other protective device is no guarantee of protection against ricochet. YOU MUST ALWAYS
GUARD AGAINST FLYING DEBRIS!
Use only authorized Shindaiwa parts and accessories with your
Shindaiwa trimmer or brushcutter. Do not make modifications to
this unit without the written approval of Shindaiwa, Inc.
NEVER operate the unit with the cutting attachment shield or
other protective devices (harness, ignition switch, blade retention
clip, etc.) removed!
ALWAYS make sure the cutting attachment is properly installed
and firmly tightened before operation.
NEVER use a cracked or warped cutting attachment: If a properly
installed attachment vibrates, replace the attachment with a new
one and re-check.
ALWAYS stop the engine immediately and check for damage if
you strike a foreign object or if the unit becomes tangled. Do not
operate with broken or damaged equipment.
NEVER allow the engine to run at high RPM without a load. Doing so could damage the engine.
NEVER operate a unit with worn or damaged fasteners or attachment holders.
NEVER cut with a dull blade. Doing so will increase the risk of
blade thrust and may also cause equipment damage.
5
Unit Description
Using the accompanying illustrations as
a guide, familiarize yourself with this unit
and its various components. Understanding
the product helps ensure top performance,
long service life, and safer operation.
WARNING!
Do not make unauthorized modications or alterations to any of these units
or their components.
Gearcase
Gearcase
Outer Tube
Cutting Attachment
Cutting Attachment
Shield
Throttle
Trigger
Outer Tube
Shield
T350 TRIMMER
Grip
Ignition
Switch
Throttle
Trigger
Shoulder
Harness
C350/B450 BRUSHCUTTER
Ignition
Switch
Guard
Handlebar
Shoulder
Harness
Tank
Guard
Tank
Spark
Plug
Air
Filter
Fuel
Tank
Spark
Plug
Air
Filter
Fuel
Tank
Specications
Model Name .......................................................................
Engine Model ...............................................................................
Engine Type .......................................................................
Displacement ....................................................................
Bore and Stroke .................................................................
Maximum Power Output ....................................................
Engine Speed at Idling .......................................................
Maximum Engine Speed ....................................................
Engine Speed at Maximum Power Output ..........................
Dry Weight (Without cutting attachment and guard.) ......................
Dimensions (L x H x H) mm ...............................................
Fuel Tank Capacity ............................................................
Fuel/Oil Ratio ....................................................................
Carburetor Type ................................................................
Ignition ..............................................................................
Spark Plug .........................................................................
Air Cleaner Type ................................................................
Starting Method .................................................................
Stopping Method................................................................
Handle Type ......................................................................
Sound Pressure Level* (average data between at Idling and at Racing) Note 1 .....
Sound Power Level** (average data between at Idling and at Racing) Note 1 ........
Vibration Level*** Note 1 ........................ Idling (Left/Right)
Racing (Left/Right)
Sound Pressure Level* (average data between at Idling and at WOT) Note 2 .......
Sound Power Level** (average data between at Idling and at WOT) Note 2 ..........
Vibration Level*** Note 2 ........................ Idling (Left/Right)
WOT (Left/Right)
T350/EC1 C350/EC1 B450/EC1
S350EC1 S350EC1 S450EC1
2-cycle, vertical cylinder, air cooled
33.6 cm
3
33.6 cm3 41.5 cm
3
36 x 33 mm 36 x 33 mm 40 x 33 mm
1.3 kW 1.3 kW 1.6 kW
2,750 min
11,500 min-1 11,500 min-1 11,500 min
7,500 min-1 7,500 min-1 7,500 min
-1
2,750 min
-1
2,750 min
-1
-1
-1
7.0 kg 7.7 kg 7.7 kg
1795x365x320 1795x565x470 1795x565x475
1000 cm
3
50:1
TK, DPV11W, Diaphragm
Fully electronic, transistor controlled
NGK BMR6A
Semi-wet
Recoil Starter
Slide Switch
Loop Handle
Bicycle Handlebar
93 dB (A) 90 dB (A) 92 dB (A)
105 dB (A) 106 dB (A) 107 dB (A)
3.0/2.3 m/s2 2.6/2.1 m/s
5.6/6.6 m/s2 3.6/3.1 m/s2 4.7/3.5 m/s
2
3.4/2.2 m/s
2
2
98 dB (A) 98 dB (A) 96 dB (A)
110 dB (A) 110 dB (A) 112 dB (A)
2.3/1.3 m/s2 1.6/1.6 m/s2 1.5/1.3 m/s
5.3/6.8 m/s2 2.8/4.2 m/s2 3.4/3.6 m/s
2
2
* Sound Pressure Level: In accordance with EN ISO 11806 and ISO 7917
** Sound Power Level In accordance with EN ISO 11806 and ISO 10884
*** Vibration Level: In accordance with EN ISO 11806 and ISO 7916
6
Note 1: 8-tooth blade equipped.
Note 2: Trimmer head equipped.
Assembly Procedure
Prior to Assembly
Before assembling, make sure you have all
the components required for a complete
unit:
Engine assembly
Outer tube assembly
Cutting attachment shield
Cutting attachment
Handlebar
Kit containing cutting attachment
shield mounting bracket and hardware,
operator’s handle mounting bracket and
hardware, gearcase tool holder, this
manual and tool kit for routine maintenance. Tool kits vary by model and may
include a hex wrench, spanner and a
combination spark plug wrench/screwdriver.
Carefully inspect all components for damage.
IMPORTANT!
The terms “left”, “left-hand”, and “LH”;
“right”, “right-hand”, and “RH”; “front” and
“rear” refer to directions as viewed by the
operator during normal operation.
T350
ENGINE ASSEMBLY
SHOULDER
STRAP
C350/B450
ENGINE ASSEMBLY
HARNESS
7
Assembling the Outer Tube
T350
(1) Loosen the 2 joint bolts fully.
JOINT BOLT
JOINT
GROUND WIRE
THROTTLE GRIP
(2) Slip the outer tube into the joint until
the tube bottoms. The outer tube or
gearcase shaft may have to be rotated
slightly for the splines on the mainshaft
to fully engage to the engine.
GROUND WIRE
NOTE:
Make sure that the throttle cable
is built into the cable guide of the
throttle lever.
(8) Shift the throttle lever back to original
position, pulling the ground wire and
throttle cable and tighten the screw
securely.
(9) Remove the bolt tightening the cylinder
cover.
(10) Put the bolt through the hole of the
ground wire terminal and tighten the
bolt.
Assembly of the Outer Tube
C350/B450
(1) Loosen the 2 joint bolts fully and slip
the outer tube into the joint until the
tube bottoms (up to the insert label).
The outer tube or gearcase shaft may
have to be rotated slightly for the splines
on the mainshaft to fully engage the
engine.
(2) Attach the ground wire to the joint bolt.
(3) Tighten the 2 joint bolts securely.
JOINT BOLT
(4) Loosen the stopper bolt of the throttle
grip. Remove the stopper bolt and nut.
(5) Fully loosen the clamp bolt of the
throttle grip.
(6) Slip the right-side handlebar into the
throttle grip. Locate the throttle grip so
that the stopper bolt can pass through
the stopper hole.
Securely tighten the stopper bolt and
nut.
(7) Securely tighten the clamp bolt.
(3) Attach the ground wire to the joint bolt.
(4) Tighten the 2 joint bolts securely.
(5) Loosen the screw which tightens the
throttle lever to the outer tube. Shift the
throttle lever toward the blade.
(6) Put the throttle cable into the tube.
Push throttle cable through hole in
rear grip.
(7) Set the throttle cable onto the
throttle lever. Use the wrench so
that the wire edge goes into the slot
of the throttle lever securely.
SCREW
INSERT LABEL
GROUND WIRE
8
Assembly of the Handle
BAND
HANDLEBAR
HANDLE BRACKET
HANDLE LABEL
LOWER CAP
BOLT
THROTTLE GRIP
T350
Assembly of the Handle
C350/B450
Throttle Cable Adjustment
WARNING!
NEVER operate this machine
without the front handle. Operating without the front handle may result
in serious injury.
NOTE:
Tighten four bolts diagonally to properly
secure the handle.
NOTE:
Adjust the handle at the best position for
operator comfort.
(1) Put four square nuts in the recesses on the underside of the barrier.
(2) Fit the handle and barrier over the
outer tube and tighten four bolts in a
crisscross fashion.
HANDLE
OUTER TUBE
BARRIER
(1) Loosen the two bolts of the lower
cap and remove the lower cap.
(2) Position the handle bracket
against the handle label located on
the outer tube.
(3) Attach the lower cap with the two
bolts and tighten the bolts. Make sure
the front handle is in position per the
illustration.
(4) Secure the cable to the outer pipe
with the two bands as the illustration
shows. The two bands are in the tool
bag.
(1) Pull the throttle trigger gently,
and check for free-play of
approximately 5mm.
(2) If free-play is out of specications:
(a) Slide the cable cap toward the
mufer side until the adjusting
nut and the lock nut appear.
(b) Loosen the lock nut slightly.
(c) Turn the adjusting nut so that
free-play is about 5mm.
(d) Then, tighten the lock nut.
(e) Slide the cable cap back.
NUT
BOLT
BARRIER
THROTTLE CABLE
CABLE CAP
ADJUSTING NUT
LOCK NUT
9
Cutting Attachment Shield Assembly
WARNING!
NEVER operate this machine
without the cutting attachment
shield. Operating without the cutting
attachment shield may result in serious injury.
(A) Cutting Attachment Shield
(1) Insert the cutting attachment
shield between the outer tube and the
lower clamp. Loosen the nut and bolt
which are tightening the lower clamp
if the cutting attachment shield does
not t with the lower clamp.
NOTE:
It may be necessary to loosen the lower
clamp bolt so that the shield will t
between the tube and clamp.
(2) Fit the two spacers (T350 only)
and the upper clamp over the outer
pipe and tighten with four bolts.
NOTE:
Tighten four bolts a crisscross fashion.
WARNING!
Carefully inspect the cutting
attachment shield assembly to
make sure it is tightened securely and
does not wobble.
BOLT
UPPER
CLAMP
SPACER
BOLT
LOWER CLAMP
NUT
OUTER TUBE
SPACER
CUTTING
ATTACHMENT
SHIELD
(B) Shield Extension (when trimmer
head is in use)
(1) Attach the shield extension to the
cutting attachment shield.
NOTE:
Make sure the shield extension is completely hooked at the hook receiver.
CAUTION!
The line cutter is attached to the shield
extension and must be used when operating with a trimmer head.
CUTTING ATTACHMENT SHIELD
HOOK
RECEIVER
HOOK
SHIELD EXTENTION
(3) Tighten the lower clamp bolt and
nut securely.
10
Installing a Blade
(1) Make sure the switch is off and
the engine is stopped.
(2) Wear gloves to protect your hands.
(3) Turn the unit over so the saw
holder ange extending from the gear
case is facing up.
(4) Using the small end of the plug
wrench, loosen the bolt (turn clockwise) and remove the bolt, bolt guard,
and holder B.
(5) Slide the safety clip as shown in
the illustration.
SHAFT BOLT
BOLT GUARD
HOLDER B
SAFETY CLIPS
WARNING!
Never operate this machine
withou t the safety clip in
place.
(6) Fit the blade over the safety clip
onto holder A. Then, slide the safety
clip back to its original position.
WARNING!
The blade must t at against
holder A. The blade’s mounting
hole must be centered over the raised
boss of holder A.
(7) Put holder B and bolt guard back
and at this time only nger tighten
the bolt.
Make sure holder B is at against
the blade and the recess in holder B
must face the blade and completely
cover the safety clip.
(8) Rotate holder A until the hole in
its skirt aligns with the hole in the
gear case. Insert the hex wrench
through both holes (to prevent the
shaft from turning).
WARNING!
Before operating, make sure
the blade is securely mounted.
Turn the blade with your hand slightly
and make sure the blade turns smoothly
without wobbling.
WARNING!
The blade must t at. Make
sure the direction of the arrow
indicated on the blade corresponds
with the arrow indicated on the cutting
attachment shield.
GEAR SHAFT
SAFETY CLIP
HOLDER A
HOLDER A
SAFETY CLIP
BLADE
(9) Holding the hex wrench and blade
with one hand, tighten the bolt (turn
counterclockwise) securely using the
hex socket end of the plug wrench.
(10) Remove the hex wrench.
11
Mixing Fuel
WARNING!
Minimize the risk of re,
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.
ALWAYS transport and store fuels
in an approved container.
Avoid overlling and wipe-up all
spilled fuel. Move the engine at
least 3 meters from the fueling
point, storage area, and other
readily ammable materials before
restarting.
ALWAYS inspect the unit for fuel
leaks before each use. During
each rell, make sure there are no
fuel leaks around the fuel cap and/
or tank. If a fuel leak is evident,
stop using the unit immediately.
Fuel leaks must be repaired before
using the unit.
NEVER smoke or light any res
near the engine or fuel source.
NEVER place any ammable ma-
terial near the engine or mufer.
NEVER operate the engine without
the mufer in good working condition.
ALWAYS move the unit to a place
well away from a fuel storage area
or other readily ammable materials before starting the engine.
CAUTION!
This engine is designed to operate on
a 50:1 mixture consisting of unleaded
gasoline and a premium 2-cycle mixing
oil only. Use of Non-approved mixing
oils can lead to excessive maintenance
costs and/or engine damage.
CAUTION!
Some gasolines contain alcohol as
an oxygenate! Oxygenated fuels may
cause increased operating temperatures. Under certain conditions,
alcohol-based fuels may also reduce
the lubricating qualities of some mixing
oils. Never use any fuel containing
more than 10% alcohol by volume!
Generic oils and some outboard motor
oils may not be intended for use in
high-performance air cooled 2-cycle
engines, and should never be used in
your Shindaiwa engine!
Filling The Fuel Tank
IMPORTANT!
Mix only enough fuel for your immediate
needs! If fuel must be stored longer than
30-days, it should rst be treated with a
stabilizer such as StaBil™ or equivalent
product!
Use only fresh, clean unleaded gasoline
with a pump octane rating of 87 or
higher.
Mixing fuel with a Premium 2-cycle
mixing oil designed for use with highperformance 2-cycle air-cooled engines.
Refer to the following examples of 50:1
fuel to oil mix quantaties:
Gasoline 2-cycle mixing oil
liters milliliters
2.5 l ................................................. 50 ml
5 l ................................ ...................100 ml
10 l .................................................200 ml
20 l .................................................400 ml
CAUTION!
Never attempt to mix fuel in the unit’s
fuel tank. Always mix all fuels in a
clean approved container.
1. Place the unit on a flat, level surface,
and wipe any debris from around the
fuel cap.
2. Remove the fuel cap.
3. Fill the tank with clean, fresh fuel.
4. Replace the cap, and wipe away any
spilled fuel before starting the engine.
12
Starting the Engine
WARNING!
MAKE SURE THE BLADE
IS WELL CLEAR OF ANY
INTERFERENCE. Before starting
the engine, place unit on clear, level
surface. Make sure you have good
secure footing and always keep a rm
grip on the machine. THE CUTTING
ATTACHMENT MAY ROTATE WHEN
THE ENGINE STARTS.
WARNING!
Move at least three meters
away from the fuel site before
starting the engine.
WARNING!
Never operate the engine
without the cutting attachment installed.
Starting a Cold Engine and/or
Restarting After Refueling.
T350
(b) Prime the engine by repeatedly depressing the carburetor primer bulb
until fuel can be seen owing through
the transparent overow return tube:
OVERFLOW TUBE
OVERFLOW PIPE
(c) Push the choke lever upward
(“ closed“ position). (Cold engine.)
Make sure the cutting
attachment is clear
of obstructions.
IMPORTANT!
Repeated cranking of the engine with
the choke CLOSED (“ “) will lead to
engine ooding. If the engine fails to
start after several attempts, move the
choke lever to the OPEN position and
continue cranking.
(f) When the engine rst res, gradually return the choke to OPEN
(“ ”) position if you have not already done so.
• If the engine stops before the choke
is fully open, restart with the choke
closed.
• If the engine stops after the initial
ring, restart with choke closed.
(g) When the engine starts and is running, set the engine to idle by tapping the throttle lever to release the
throttle lock.
WARNING!
Never start the engine from
the operating position.
Starting a Warm Engine
Starting a warm engine involves all of
the steps of starting a cold engine.
EXCEPT:
• The choke should be in the OPEN
position.
If the engine does not start, follow the
cold engine starting procedure.
C350/B450
THROTTLE
LEVER
ON-OFF SWITCH
THROTTLE LOCK
BUTTON
LOCK LEVER
(a) Slide the ON-OFF switch to the “I”
position.
(d) Depressing the lock lever, pull the
throttle lever fully and depress the
throttle lock button. While depressing
the throttle lock button, release the
throttle lever and the lock lever. Now
the throttle stays at high idle (starting
speed).
(e) While rmly holding the outer tube
with one hand, pull the recoil starter
handle upward with your other hand.
Pull slowly at rst until you feel the
starter engage, then pull quickly
to start the engine. Do not pull the
starter rope to the end of its travel.
CAUTION!
Pulling the starter rope to the end
of its travel may damage the starter
mechanism.
When the engine starts:
• After the engine starts, disengage
the throttle lock and allow the engine
to warm-up at idle for 2 or 3 minutes
before operating the machine.
• After the engine is warm, pick up
the machine and clip-on the strap.
• Advancing the throttle makes the
cutting attachment rotate faster; releasing the throttle makes the attachment stop running. If the cutting attachment continues to rotate, carburetor idle speed should be adjusted.
(See next page.)
13
Stopping the Engine
Idle the engine briey before stopping, then slide the ON-OFF switch to
the “O” (for STOP) position.
WARNING!
The cutting attachment continues rotating for a while after
the switch is turned off.
C350/B450
T350
Engine Idle Adjustment
The engine must return to idle speed
whenever the throttle lever is released. Idle speed is adjustable, and
must be set low enough to permit the
engine clutch to disengage the cutting attachment when the throttle is
released.
WARNING!
The cutting attachment must
NEVER rotate at engine idle!
If the idle speed can not be adjusted
by the procedure described here, have
the unit inspected at an authorized
Shindaiwa dealer.
(3) If a tachometer is available, the
engine idle speed should be adjusted
to 2,750 min-1 (rpm)
NOTE:
Carburetor fuel mixture adjustments
are preset at the factory on units with
emission control systems and cannot
be serviced in the eld.
Shoulder Strap/Harness
To Wear the Strap
(1) Attach the strap hook to the
hanger on the outer pipe.
(2) Wear the strap so that the hook
stays at your right side.
(3) Adjust the length of the strap so
that you can hold and operate the
machine comfortably.
(4) Make sure the hip pad stays between your hip and outer pipe. (B450
ONLY)
C350
B450
T350
Emergency Release
In case of emergency, rmly pull the
white tab at the hook. The machine
will release from the strap.
C350/B450
T350
IMPORTANT!
Adjust the shoulder strap so the shoulder
pad rests comfortably on the off-side
shoulder and the cutting path of the cutting
attachements is parallel to the ground. Make
sure all hooks and adjustment devices are
secure.
WARNING!
Always wear a harness when
operating this unit with a blade.
NOTE:
Using a harness with a bruscutter allows you
to maintain proper control of the unit and
reduces fatigue during extended operation.
Double Shoulder Harness
Adjust the double shoulder harness straps
so the shoulder pads rest comfortably on
the offside of the shoulder and the cutting
path of the blade is parallel to the ground.
Make sure all hooks and adjusting devices
are secure.
Idle Adjust
Screw
(1) Place the unit on the ground, then
start the engine and allow it to idle
for 2-3 minutes until warm.
(2) If the attachment rotates when
the engine is at idle, reduce the idle
speed by turning the idle adjustment
screw counterclockwise.
14
Operation
Recommended
Cutting Attachments
Using A Blade
(1) After starting the engine, pull
the throttle lever gradually.
The engine speed increases
and the blade will start
rotating.
(2) When the throttle lever is
released, the engine goes
back to idle speed
automatically.
(3) Operate the machine at full
throttle while cutting. Best
fuel efciency is obtained by
releasing the throttle when
swinging back after cut.
(4) The blade rotates
counterclockwise. For best
performance and to minimize
being stuck by debris, move
the blade from right to left
while advancing on your
work.
WARNING!
Position the blade so cuts
are made between blade’s
8 o’clock and 10 o’clock
positions (as viewed from above).
DO NOT cut between the 11 o’clock
and 5 o’clock positions.
WARNING!
“BLADE THRUST” is a sudden
sideway or backward motion of
the machine. Such motion may
occur when the blade jams or catches
on an object such as a sapling tree or
tree stump. BE CONSTANTLY ALERT
FOR BLADE THRUST AND GUARD
AGAINST ITS EFFECTS.
CAUTION!
To prevent possible engine damage,
do not allow the machine to run at high
speeds without a load. Avoid operating
the engine at low speeds. Doing so can
lead to rapid clutch wear. In addition,
slow-speed operation tends to cause
grass and debris to wrap around the
cutting attachment.
OK TO CUT
Eight
O'Clock
Ten
O'Clock
Direction of
Rotation
DO NOT
CUT
Make sure to use the following recommended Shindaiwa cutting attachment with this machine.
Blades
PART NUMBER 60903-98310
8-TOOTH BLADE
INNER BORE: 25.4mm
DIAMETER: 255.0mm
THICKNESS: 2.0mm
PART NUMBER 72430-92142
3-TOOTH BLADE
INNER BORE: 25.4mm
DIAMETER: 255.0mm
THICKNESS: 2.2mm
PART NUMBER 60903-98320
4-TOOTH BLADE
INNER BORE: 25.4mm
DIAMETER: 255.0mm
THICKNESS: 2.0mm
Trimmer Heads
(A) C350
PART NUMBER 78820-16000
TAP & FEED TRIMMER HEAD
BOLT DIAMETER: 10mm
THREAD: LEFT,1.25mm PITCH
(B) B450
PART NUMBER 78820-14000
SEMI-AUTOMATIC TRIMMER HEAD
BOLT DIAMETER: 10mm
THREAD: LEFT,1.25mm PITCH
(C) T350
PART NUMBER 78820-15000
TAP & FEED TRIMMER HEAD
BOLT DIAMETER: 8mm
THREAD: LEFT,1.25mm PITCH
CAUTION!
DO NOT use 2-tooth blades with this
machine.
WARNING!
NEVER strike or slam the
spinning blade against the
wood.
WARNING!
When transporting, make sure
the engine is not running and
blade is covered with blade cover.
15
23042
Using a Brushcutter With a Trimmer Head
CUTTING
PATH
RETURN
PATH
23041
Maintenance
You may install one of several types of Shindaiwa trimmer heads on your TC350/B450
trimmer or brushcutter, each with features
for specific applications and/or operational
requirements.
For proper operation, always refer to the
instructions accompanying the trimmer
head being used. Available trimmer head
styles include:
Semi-automatic. Trimmer line is
indexed when the operator taps the trimmer head on the ground during operation.
Manual. The operator indexes line man-
ually with the grass trimmer stopped.
Fixed. The operator must stop the unit
and add new lengths of trimmer line
manually.
Flail. This device, designed for clearing
weeds and light brush, features three
nylon blades attached to the head by
pivots.
CAUTION!
Do not push the rotating line into trees,
wire fences or any material that could
tangle or break line ends.
Engine Operating Speeds
Operate at full throttle while cutting grass.
CAUTION!
Operation at low rpm can lead to premature clutch failure.
Trimming and Mowing Grass
Hold the grass trimmer so the trimmer
head is angled slightly into the area to be
cut. To ensure maximum trimmer-line
service life, cut only with the tip of the trimmer line. Cut grass by swinging the unit's
trimmer head from left to right. Keep the
trimmer head horizontal.
Edging
Tilt the handle about 100° to the left (from
horizontal) and move forward, holding the
trimmer or brushcutter ver tically as shown.
WARNING!
Before performing any maintenance, repair, or cleaning
work on the machine, make
sure the engine and cutting attachment
are completely stopped. Disconnect
the spark plug wire before performing
service or maintenance work.
WARNING!
Never repair a damaged
blade by welding, straightening, or by modifying its shape. An
altered blade may break during operation, resulting in serious personal
injury.
Daily Maintenance
Prior to each work day, perform the
following:
Remove the dirt and debris
from the engine, check the
cooling ns and air cleaner
for clogging, and clean them
as necessary.
Carefully remove any
accumulations of dirt or
debris from the mufer and
fuel tank. Dirt buildup in
these areas can lead to
engine overheating, re, or
premature wear.
Check for loose or missing
screws or components. Make
sure the cutting attachment
is securely fastened.
Check the machine for
leaking fuel or grease.
16
10 Hour Maintenance
50 Hour Maintenance
Mufer Maintenance
Remove the air cleaner element from
the carburetor and clean it thoroughly with soap and water. Squeeze out
excess, let dry and reassemble the
element.
CAUTION!
Do not operate the machine if the air
cleaner or element is damaged, or if
the element is water-soaked.
CLEANER ELEMENT
CLEANER
COVER
LOOSEN SCREW TO REMOVE
10/15 Hour Maintenance
Remove and clean the spark plug.
Adjust the spark plug electrode gap
to 0.6 - 0.7mm. If the plug must be
replaced, use only NGK BMR6A.
Cleaning
Remove and clean the cylinder cover
and clean grass and dirt from the
cylinder ns.
BOLT
STAY
CYLINDER
COVER
PROTECTOR
BOLT
MUFFLER
COVER
GASKET
Remove the cutting attachment and
the gear shaft collar, and press new
grease into the gear case until the old
grease has been pushed out. Use only
lithium base grease (such as Shindaiwa Gear Case Lubricant).
New Grease
Gear Shaft Collar
(350 only)
Hard starting or a gradual loss
of performance can be caused
by carbon deposits lodged in the
mufer’s spark arrester screen.
In such cases, performance can
usually be restored by removing
the spark arrester screen and giving it a thorough cleaning with a
stiff bristle brush.
If carbon deposits are severe or
if no performance improvement is
noted, your unit should be returned to your Shindaiwa dealer
for inspection.
Mufer
12-6 50 Hour Maintenance
Spark
Arrester
CAUTION!
Before removing the spark plug, clean
the area around the plug to prevent dirt
and dust from getting into the engine’s
internal parts.
Old Grease
Fuel Filter Maintenance
Use a hooked wire to extract the
fuel lter from inside the fuel tank.
Remove and replace the lter element. Before reinstalling the lter,
inspect the condition of the fuel
line. If damage or deterioration are
noted, the unit should be removed
from service until you can consult with an authorized servicing
dealer.
CAUTION!
Make sure you do not pierce the fuel
line with the end of the hooked wire.
The line is delicate and can be damaged easily.
Hooked
Wire
WARNING!
Never operate this unit with
a damaged or missing mufer or spark
arrester! Operating with missing or
damaged exhaust components is a
re hazard and may also damage your
hearing.
17
Long Term Storage
Blade Sharpening
Whenever the unit will not be used for
30 days or longer, use the following
procedures to prepare it for storage:
Clean external parts thoroughly and
apply a light coating of oil to all metal
surfaces.
Drain all the fuel from the fuel tank.
IMPORTANT!
All stored fuels should be stabilized with a
fuel stabilizer such as STA-BIL™.
To remove the remaining fuel from the
fuel lines and carburetor and with the fuel
drained from the fuel tank.
1. Prime the primer bulb until no more fuel
is passing through.
2. Start and r un the engine until stops
running.
3. Repeat steps 1 and 2 until the engine will
no longer start.
CAUTION!
Gasoline stored in the carburetor
for extended periods can cause
hard starting, and could also lead to
increased service and maintenance
costs.
Remove the spark plug and pour about
7 grams of 2-cycle mixing oil into the
cylinder through the spark plug hole.
Slowly pull the recoil starter 2 or 3
times so oil will evenly coat the interior
of the engine. Reinstall the spark plug.
Before storing the unit, repair or replace
any worn or damaged parts.
Remove the air cleaner element from the
carburetor and clean it thoroughly with
soap and water. Let dry and reassemble
the element.
Store the unit in a clean, dust-free area.
With the le or a grinder, le a blade
as follows.
WARNING!
Sharpen only the cutting teeth
of a blade. DO NOT alter the
contour of the blade in any way. In
order to keep the blade in balance,
all cutting edges must be sharpened
equally. DO NOT le the tips of the
teeth too sharp.
The sharpening angle should be 45° approx.
Do not le the tips of the blade too sharp.
Leave 0.2~0.5mm unsharpened.
The bottom of each tooth must remain unsharpened.
(Blade as viewed from bottom)
4-Tooth Blade
Make sure the width of the 3 sides/
4 sides is all the same.
18
8-Tooth Blade
Does the engine
crank?
Faulty recoil starter.
Fluid in the crankcase.
Internal damage.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
NO
Good
compression?
Loose spark plug.
Excess wear on
cylinder, piston, rings.
Tighten and re-test.
NO
YES
Does the tank
contain fresh
fuel of the
proper grade?
Refill with clean fresh unleaded
gasoline with a pump octane of
87 or higher, mixed with
Premium 2-cycle mixing oil at a 50:1
gasoline/oil ratio.
Fuel incorrect, stale, or
contaminated; mixture
incorrect.
NO
YES
Is fuel visible
and moving in
the return line
when priming?
Check for clogged fuel
filter and/or vent.
Replace fuel filter or vent as required.
Restart.
NO
Is there spark at
the spark plug
wire terminal?
The ignition switch
is in “O” (OFF) position.
Shorted ignition ground.
Faulty ignition unit.
Move switch to “I” (ON)
position and re-start.
NO
NO
YES
YES
Check the
spark plug.
If the plug is wet, excess
fuel may be in the
cylinder.
The plug is fouled
or improperly gapped.
The plug is damaged
internally or of the
wrong size.
Crank the engine with the
plug removed, replace the
plug, and re-start.
Clean and re-gap the plug to
0.6 ~ 0.7 mm. Re-start.
Replace the plug with a
NGK BMR6A. Re-start.
YES
What To Check Possible Cause Remedy
Troubleshooting Guide
Engine Does Not Start
19
Troubleshooting Guide (Continued)
Is the engine
overheating?
Operator is overworking
the unit.
Carburetor mixture is
too lean.
Improper fuel ratio.
Fan, fan cover, cylinder
fins dirty or damaged.
Carbon deposits on the
piston or in the muffler.
Cut at a slower rate.
Consult with an authorized
servicing dealer.
Refill with clean fresh unleaded
gasoline with a pump octane of
87 or higher, mixed with
Premium 2-cycle mixing oil at a
50:1 gasoline/oil ratio.
Clean, repair or replace
as necessary.
Consult with an authorized
servicing dealer.
What To Check Possible Cause Remedy
Engine is rough
at all speeds.
May also have
black smoke
and/or unburned
fuel at the
exhaust.
Clogged air cleaner
element.
Loose or damaged
spark plug.
Air leakage or clogged
fuel line.
Water in the fuel.
Piston seizure.
Faulty carburetor and/
or diaphragm.
Clean or replace the air filter.
Tighten or replace the plug with
a NGK BMR6A. Re-start.
Repair or replace fuel
filter and/or fuel line.
Refill with fresh fuel/oil
mixture.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Engine is
knocking.
Overheating condition.
Improper fuel.
Carbon deposits in the
combustion chamber.
See above.
Check fuel octane rating;
check for presence of
alcohol in the fuel. Refuel as
necessary.
Consult with an authorized
servicing dealer.
Low Power Output
20
Inspect and replace
attachment as required.
Tighten gearcase securely.
Inspect and replace
as necessary.
Poor
acceleration.
Clogged air filter.
Clogged fuel filter.
Lean fuel/air
mixture.
Idle speed set too low.
Clean or replace the air filter.
Replace the fuel filter.
Consult with an authorized
servicing dealer.
Adjust: 2,750 min-1
Symptom Possible Cause Remedy
Engine stops
abruptly.
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Shorted spark plug or
loose terminal.
Ignition failure.
Piston seizure.
Reset the switch and re-start.
Refuel. See page 12.
Replace fuel filter.
Drain; replace with clean fuel.
See page 12.
Clean or replace spark plug with
a NGK BMR6A. Tighten the terminal.
Replace the ignition unit.
Consult with an authorized
servicing dealer.
Engine difficult
to shut off.
Ground (stop) wire is
disconnected, or
switch is defective.
Overheating due to
incorrect spark plug.
Overheated engine.
Test and replace
as required.
Replace spark plug with a NGK BMR6A.
Idle engine until cool.
Cutting
attachment
moves at
engine idle.
Engine idle too high.
Broken clutch spring
or worn clutch spring
boss.
Loose attachment
holder.
Set idle: 2,750 min
-1
Replace spring/shoes as
required, check idle speed.
Inspect and re-tighten
holders securely.
Excessive
vibration
Warped or damaged
attachment.
Loose gearcase.
Bent main shaft/worn
or damaged bushings.
Attachment will
not rotate
Shaft not installed
in powerhead or
gearcase.
Broken shaft.
Damaged gearcase.
Inspect and reinstall
as required.
Consult with an authorized
servicing dealer.
Consult with an authorized
servicing dealer.
Troubleshooting Guide (Continued)
Additional Problems
21
Declaration of Conformity
DECLARATION
OF
CONFORMITY
We hereby declare the Shindaiwa Engine Engine Brushcutter,
Model RM 350
meets the following respective requirements.
Council Directives: Standard taken:
89/336/EEC as amended EN 292 parts 1&2
98/37/EC as amended ISO 11806
2000/14/EC as amended CISPR 12
2004/26/EC as amended
(T350/EC1, C350/EC1).
Measured sound power level: 113dB(A)
Guaranteed sound power level: T350/EC1:114dB(A), C350/EC1:115dB(A)
Technical documentation is kept by:
K. Maeda DIV. Manager
Engineering Research and Development DIV.
Shindaiwa Kogyo Co., Ltd.
Headofce: 6-2-11,Ozuka—Nishi,Asaminami—Ku,
Hiroshima,731—3167,Japan
TEL:81-82-849-2003,FAX:81-82-849-2482
16thFebruary,2005
Shindaiwa Kogyo Co., Ltd.
T. Yoshitomi
DIV.Manager Headofce:6-2-11,Ozuka—Nishi,Asaminami—Ku,
QualityAssuranceDIV. Hiroshima,731—3167,Japan
TEL:81-82-849-2206,FAX:81-82-849-2481
22
Declaration of Conformity
DECLARATION
OF
CONFORMITY
We hereby declare the Shindaiwa Engine Engine Brushcutter,
Model RM 450
meets the following respective requirements.
Council Directives: Standard taken:
89/336/EEC as amended EN 292 parts 1&2
98/37/EC as amended ISO 11806
2000/14/EC as amended CISPR 12
2004/26/EC as amended
(T450/EC1, B450/EC1).
Measured sound power level: 115dB(A)
Guaranteed sound power level: 117dB(A)
Technical documentation is kept by:
K. Maeda DIV. Manager
Engineering Research and Development DIV.
Shindaiwa Kogyo Co., Ltd.
Headofce: 6-2-11,Ozuka—Nishi,Asaminami—Ku,
Hiroshima,731—3167,Japan
TEL:81-82-849-2003,FAX:81-82-849-2482
16thFebruary,2005
Shindaiwa Kogyo Co., Ltd.
T. Yoshitomi
DIV.Manager Headofce:6-2-11,Ozuka—Nishi,Asaminami—Ku,
QualityAssuranceDIV. Hiroshima,731—3167,Japan
TEL:81-82-849-2206,FAX:81-82-849-2481
23
NOTES:
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin, Oregon 97062 USA
Telephone: 503 692-3070
Fax: 503 692-6696
www.shindaiwa.com
Shindaiwa Kogyo Co., Ltd.
Head Office:
6-2-11, Ozuka-Nishi
Asaminami-Ku, Hiroshima
731-3167, Japan
Telephone: 81-82-849-2220
Fax: 81-82-849-2481
©2005 Shindaiwa, Inc.
Part Number 62102-94310
Revision 2/05
Shindaiwa is a registered trademark
of Shindaiwa, Inc.
Specifications subject to change without notice.
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