Shindaiwa T350, C350 Owner's/operator's Manual
T350 GRASS TRIMMER
T350
C350
Minimize the risk of injury to yourself and
others! Read this manual and familiarize
yourself with the contents. Always wear
eye and hearing protection when operating this unit.
®
C350 BRUSHCUTTER
EPA Version
EPA Version
WARNING!
SHINDAIWA OWNER’S/OPERATOR’S MANUAL
Part Number 72577-93115 Rev. 5/05
2
Introduction
Attention Statements .............................2
General Safety Instructions ..................
3
Checking Unit Condition ......................3
Safety Labels ...........................................5
Unit Description .....................................6
Specifications ..........................................
6
Assembly .................................................7
Mixing Fuel ..........................................12
Starting the Engine ..............................
13
Stopping the Engine ............................14
Idle Speed Adjustment ........................14
Shoulder Strap and Harness ...............
15
Cutting Grass (trimmer head) ...........15
Using a Brushcutter Blade .................
16
Maintenance .........................................17
Long Term Storage ..............................
19
Blade Sharpening .................................19
Troubleshooting Guide .......................
20
Emission System Warranty ................
22
PAGE
The Shindaiwa 350-series of hand power
tools has been designed and built to deliver superior performance and reliability
without compromise to quality, comfort,
or durability.
Shindaiwa high performance engines
represent the leading edge of 2-cycle
engine technology, delivering excep
tionally high power from 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
manual describes units available at the
time of publication.
Shindaiwa Inc. reserves the right
to make changes to products without
prior notification, and without obligation
to make alterations to units previously
manufactured.
Contents
WARNING!
The engine exhaust from this unit
contains chemicals known to the
State of California to cause cancer,
birth defects or other reproductive
harm.
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 significance.
NOTE:
A statement preceded by the word
“NOTE” contains information that is
handy to know and may make your job
easier.
Attention Statements
IMPORTANT!
The operational procedures described
in this manual are intended to help you
get the most from this 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.
Read and follow this
operators manual.
Failure to do so could
result in serious injury.
Wear eye and hearing
protection at all times
during the operation
of this unit.
Keep bystanders
at least 50 feet (15 m)
away during operation.
Beware of thrown or
ricocheted objects.
Do not operate this unit
with a blade unless the
unit is equipped with a
Shindaiwa-approved
handlebar or barrier.
Always wear a harness
when operating this unit
with a blade. A harness
is also recommended when
using trimmer line.
If unit is used as a
brushcutter, beware of
blade thrust. A jammed
blade can cause the unit
to jerk suddenly and may
cause the operator to
lose control of the unit.
3
SAFETY
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!
Use Good Judgment
NEVER operate the engine when
transporting the unit.
NEVER operate 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 specified for your unit.
ALWAYS keep the unit as clean as
practical. Keep it free of loose vegetation, mud, etc.
ALWAYS hold the unit firmly 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 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.
General Safety Instructions
WARNING!
Never make unauthorized attachment installations.
WARNING!
Never operate power equipment
of any kind if you are tired or if you
are under the influence of alcohol,
drugs, medication or any other substance that could affect your ability
or judgement.
WARNING!
Minimize the Risk of Fire
NEVER smoke or light fires near the
unit.
ALWAYS stop the engine and allow
it to cool before refueling. Avoid
overfilling and wipe off any fuel that
may have spilled.
ALWAYS inspect the unit for fuel
leaks before each use. During each
refill, check that no fuel leaks from
around the fuel cap and/or fuel tank.
If fuel leaks are evident, stop using
the unit immediately. Fuel leaks must
be repaired before using the unit.
ALWAYS move the unit to a place
well away from a fuel storage area
or other readily flammable materials
before starting the engine.
NEVER place flammable material
close to the engine muffler.
NEVER run the engine without the
spark arrester screen in place.
Checking Unit Condition
NEVER operate the unit with the cutting
attachment shield or other protective
devices (harness, ignition switch, blade
retention clip, etc.) removed!
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.
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 attach
ment vibrates, replace the attachment
with new one and
recheck.
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.
4
The Properly Equipped Operator
Always wear a harness when operating a unit
equipped with a blade.
Always operate with both hands firmly
gripping the unit.
Wear close-fitting 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!
Wear hearing protection devices and a
broad-brimmed hat or helmet.
Always wear eye protection such as goggles or safety
glasses to shield against thrown objects.
When operating with a blade, make
sure the handle is positioned to provide
you with maximum protection from
contacting the blade.
Keep away from the rotating
trimmer line or blade at all
times, and never lift a moving
attachment above waist-high.
Wear appropriate footwear (non-skid boots
or shoes): do not wear open-toed shoes or
sandals. Never work barefooted!
Keep a proper footing and do not
overreach. Maintain your balance at all
times during operation.
Always make sure the
appropriate cutting
attachment shield is
correctly installed and in
good condition.
Figure 1
SAFETY
Be Aware of the Working Environment
Avoid long-term operation
in very hot or very cold
weather.
Make sure bystanders
or observers outside the
50-foot “danger zone” wear
eye protection.
Be extremely careful
of slippery terrain,
especially during
rainy weather.
If contact is made with a hard object,
stop the engine and inspect the cutting
attachment for damage.
Be constantly alert for objects and debris that could be thrown either from
the rotating cutting attachment or bounced from a hard surface.
Reduce the risk of bystanders
being struck by flying debris. Make
sure no one is within 50 feet (15
meters)—that’s about 16 paces—
of an operating attachment.
Beware of a coasting blade when brushcutting.
A coasting blade can injure while it continues
to spin after the throttle trigger is released or
after the engine is stopped.
50
FEET
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.
Figure 2
5
35002b
35001
SAFETY
Safety Labels
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.
This label indicates the minimum
distance between front handle and
rear grip per ANSI B175.3.
T350
C350
Figure 3
6
Engine Model ...........................................................S350 Engine
Dry Weight C350 ...........................................
16.8 pounds/7.6kg
Dry Weight T350 ........................................
15.2 pounds/6.9 kg.
Type ......................................................................2-cycle, vertical
cylinder, air-cooled
Bore x Stroke ........................................................
36mm x 33mm
Displacement ...................................................33.6.cc/2.1 cu. in.
Maximum Power Output ............... 1.8 hp @ 7500 RPM (min-1)
Operating RPM Range .........................5500–8500 RPM (min-1)
Transmission Type ......................
Automatic centrifugal clutch
through bevel gears
Fuel/Oil Ratio ............................. 50:1 with Shindaiwa Premium
2-cycle mixing oil
Fuel Tank Capacity, T350 ....................................
34 oz./1000 ml
Fuel Tank Capacity, C350 ....................................
34 oz./1000 ml
Carburetion .................................................
TK, Diaphragm type
Ignition ........................... Fully electronic, transistor controlled
Spark Plug ............................................................ Champion CJ-8
Air Cleaner .............................................................Foam element
Starting Method ..................................................................
Recoil
Stopping Method .......................... Slide switch, grounding type
Handle ..............................Loop handle with barrier bar (T350)
Handlebar (C350)
Specifications
Prior to Assembly
Before assembling this product, please
make sure you have all the components
required for a complete unit:
Engine assembly (Powerhead).
Outer Tube Assembly.
Cutting Attachment shield.
Cutting attachment (trimmer head or
brushcutter blade).
Specifications subject to change without notice
35002b
35001
Unit Description
T350 Grass Trimmer
WARNING!
Do not make unauthorized modifica
tions or alterations to this unit or its
components.
Using the accompanying illustrations
as a guide, familiarize yourself with this
unit and its various components. Understanding this unit helps ensure top
performance, long service life, and safer
operation.
Handle
Outer Tube
Gearcase
Cutting
Attachment
Shield
Grip
Throttle Trigger
Throttle Trigger
Gearcase
Trimmer Head
Brushcutter Blade
Outer Tube
Handlebar
Fuel
Tank
Cylinder
Cover
C350 Brushcutter
Fuel
Tank
Cutting
Attachment
Shield
Hanger
Hanger
DESCRIPTION
Figure 4
Ignition
Switch
Ignition
Switch
Barrier Bar
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
of this product.
Correct operator handle for applica-
tion (see preceding 87).
Tool kit including: Hex wrenches and
a combination spark plug wrench/
screwdriver.
Carefully inspect all components for
damage.
7
Assembly: Driveshaft/Powerhead (T350/C350)
35004
35003
1. Place the powerhead on a flat surface,
resting on its built-in stand. (spark
plug facing “up”)
2. Use the 4mm hex wrench to loosen
the two clamp screws on the
powerhead tube clamp.
T350
Use a screwdriver to loosen the two
throttle assembly clamp screws.
Slide the outer tube assembly
through the throttle assembly and
into the powerhead tube clamp. See
Figure 5.
C350
Slide the shaft tube assembly into the
powerhead tube clamp. See Figure 5.
CAUTION!
Do not force the shaft tube into the
powerhead! If shaft tube installation
is difficult, rotate the outer tube or
mainshaft until you feel the mainshaft splines engage inside the fan
cover housing. The outer tube decal
must align with the powerhead tube
clamp as shown!
T350 Trimmer
C350 Brushcutter
Decal
Clamp
Screws
Mainshaft
Powerhead
Clamp
Screws
Tube
Clamp
Throttle
Assembly
Throttle
Clamp
Outer
Tube
Figure 5
Mainshaft
35006
Assembly: Handle (T350)
Handle
Barrier Bar
Handle Retaining
Screws
Outer Tube
Figure 6
Handle Positioning Label
Nuts
Connect the Handle to
the Outer Tube.
1. Position the handle on the outer tube
forward of Handle Positioning Label
as shown in Figure 6.
2. Install the handle and barrier bar onto
the outer tube with the socket head
cap screws and nuts as shown in Fig
ure 6. Tighten the screws finger-tight
ONLY at this time.
3. Locate the handle in the best position
for operator comfort (usually about 10
inches ahead of the throttle housing).
4. Secure the handle by alternately tight
ening the four socket-head screws in
a diagonal or “crisscross” fashion.
ASSEMBLY
3. Rotate the outer tube until the
gearcase output shaft faces down,
away from the spark plug on the
powerhead.
4. Tighten both tube clamp screws
equally.
5. (T350) Position the throttle assembly
with the throttle lever down (away
from the spark plug), and tighten
both throttle clamp screws securely.
8
ASSEMBLY
35009b
Assembly: Handlebar and Throttle Assembly (C350)
1. Use the 4mm hex wrench to remove
the lower cap retaining screws from
the handlebar bracket. Remove the
cap from the bracket.
2. Position the handlebar on the outer
tube forward of the handle position
-
ing label as shown in Figure 7. Reas
semble the lower cap to the handlebar
bracket in the reverse order of disas
-
sembly. See Figure 7.
3. Firmly tighten both lower cap retain
-
ing screws.
Handlebar
Throttle
Assembly
Outer Tube
Handlebar
Bracket
Throttle Cable
Lower Cap Retaining
Screws
Figure 7
Cap
C35007
Cable Holder
Throttle Cable Sleeve
Male Stop
Switch Connectors
Powerhead
Throttle Cable
Figure 8
Female Stop
Switch Connectors
Throttle Cable
1. Route the powerhead throttle cable
through the cable holder.
See Figure 8.
2. Install the throttle cable sleeve
on the powerhead throttle cable.
See Figure 8.
3. Connect the stop switch wire
connectors (two wires).
See Figure 8.
4. Connect the powerhead throttle cable
to the throttle cable from the handle
-
bar. See Figure 9.
IMPORTANT!
Make sure the metal end of the
powerhead throttle cable jacket fits in
the grooved end of the cable connector
5. Center the throttle cable sleeve over
the connected cable ends and place
the assembly in the throttle cable con
-
nector. See Figures 9 and 10.
6. Close the throttle cable connector
using hand pressure until you feel it
snap into place. See Figure 10.
7. Secure each end of the throttle connec
-
tor with a cable tie. See Figure 11.
8. Install the hip protector on the outer
tube. See inset of Figure 11.
C35011
C35010
C35009
C35008
Throttle Cable
Sleeve
Throttle Cable
Connector
Throttle Cable
Sleeve
Figure 9
Connecting Throttle
Cable Ends
Installing the
Connector
Figure 10
Throttle Cable
Sleeve
C35012
Hip Protector
Throttle Cable
Figure 11
Stop Switch
Terminals
Cable Connector
Cable Ties
Handlebar
Handle Positioning Label
9
ASSEMBLY
Install the Cutting Attachment Shield (T350/C350)
Bracket
Install the Cutting Attachment
Shield T350/C350.
1. Insert the cutting attachment shield
between the outer tube and the cutting attachment mounting plate. See
Figure 12.
WARNING!
NEVER operate the unit without the
cutting attachment shield installed
and tightly secured!
CAUTION!
Make sure the clamp screw and
retaining nut are securely tightened
before tightening the four sockethead cap screws.
NOTE:
It may be necessary to loosen the retaining nut and clamp screw to adjust cutting
attachment shield mounting plate.
2. Fit the two shims (T350 only) and
the bracket over the outer tube and
loosely install the four socket-head
screws. See Figure 12.
3. Tighten the four socket-head cap
screws to secure the cutting attach
-
ment shield.
WARNING!
The line cutter is very sharp. Wear
gloves to protect your hands when
handling.
To Change Position of Line Cutter.
1. Remove the 2 hex screws with a 4mm
hex wrench. See Figure 12A.
2. Rotate line cutter. See Figure 12A.
3. Reinstall the two hex screws and
tighten them securely.
NOTE:
Be careful to not lose the 2 nuts in the
cutting attachment shield, they are not
captured.
The line cutter can be positioned in
2 positions to obtain different line length
for cutting.
Sub-Shield.
(when trimmer head is in use)
1. Attach the shield extension to the
cutting attachment shield.
WARNING!
NEVER use this machine without
sub-shield when using a trimmer
head.
CAUTION!
Make sure the sub-guard is completely hooked at the hook receiver.
Sub-shield
Hook
Hook
Receiver
Cutting Attachment Shield
Figure 12
Line Cutter
Figure 12A
Hex
Screws
Socket-head
Cap Screws
Shim (T350)
Shim (T350)
Nut
Bracket
Cutting Attachment Shield
Outer Tube
T350/C350
10
35008
35007
Installing a Trimmer Head (T350/C350)
A
Safety Clip
(not used)
Shaft Bolt
(not used)
Bolt Guard (not
used)
NOTE:
The T350 is shipped with Holder A,
the blade retainer (safety clip), Holder
B, shaft bolt, and bolt guard installed.
The shaft bolt is a LEFT-HAND thread.
Remove it by turning CLOCKWISE!
1. With the gearcase output shaft facing
up, rotate the gearshaft and Holder A
until the hole in Holder A aligns with
the matching hole in the gearcase
flange, and then lock the holder to
the gearcase by inserting the long
end of the hex wrench through both
holes. See Figure 13-A.
2. Using the combination spark plug/
screwdriver wrench, remove the shaft
bolt, bolt guard, Holder B and the
safety clip. (The bolt guard, shaft bolt
and safety clip are not used with a
trimmer head). See Figure 13-A.
3. Install Holder B on the gearcase
shaft. The splined hole on Holder B
must engage with the gearcase shaft.
4. Using the hex wrench to secure
Holder A, install and hand-tighten the
trimmer head (counter-clockwise to
install). See Figure 13-B.
5. Remove the hex wrench from the
gearcase and holder.
Gearcase
Shaft
Hex Wrench
B
Holder B
Holder A
Hand-tighten Trimmer Head
(counter-clockwise to install)
Figure 13
WARNING!
A standard grass trimmer unit with
loop handle should NEVER be operated with blade-type attachments.
For blade use, the trimmer must be
fitted with a bicycle-type handlebar
or barrier bar that is located in front
of the operator to reduce the risk of
the operator coming in contact with
the cutting attachment. (Per ANSI
B175.3). When using a blade, the
unit must also be equipped with a
harness or strap.
The T350 should now be completely assembled and ready for use as a grass trimmer.
ASSEMBLY
11
35010
35013
35012
NOTE:
The C350 is shipped with Holder A,
the safety clip, Holder B, shaft bolt, and
bolt guard installed. The shaft bolt is a
LEFT-HAND THREAD AND IS
REMOVED IN A CLOCKWISE
ROTATION!
1. With the gearcase output shaft facing
up, rotate the gearshaft and Holder A
until the hole in Holder A aligns with
the matching hole in the gearcase
flange, and then lock the holder to
the gearcase by inserting the long
end of the hex wrench through both
holes. See Figure 14.
2. Remove the shaft bolt, bolt guard and
Holder B. See Figure 14.
3. Slide the safety clip off center on the
gearcase shaft. See Figure 14-A.
4. Slide the blade over the safety clip
and onto the flange on Holder A
See Figure 14-B
5. Lock the blade on the shaft
by centering the safety clip.
See Figure 14-C.
A
B
C
Shaft Bolt
Bolt Guard
Holder B
Holder A
Gearcase
Shaft
Slide the safety clip off-center
Center the safety clipSlip the blade in place
Safety
Clip
35011
ASSEMBLY
Figure 14
Hex
Wrench
WARNING!
The blade must fit flat against the
holder flange. The blade mount
ing hole must be centered over the
raised boss on blade Holder A.
CAUTION!
Install the blade so its printed surface is visible to the operator when
the brushcutter is in the normal
operating position.
NOTE:
When installing certain blades, it may
be necessary to temporarily remove the
safety clip.
Assembly: Install the Blade (C350)
35015
35014
6. Install Holder B on the gearcase shaft.
See Figure 15.
IMPORTANT!
The machined recess in holder B must
completely surround the safety clip, and
both holders must be flat against the
surface of the blade.
7. Lock Holder A to the gearcase by
inserting the long end of the hex
wrench through both holes as
done in step 1 and tighten the shaft
bolt securely with the combination
spark plug/screwdriver wrench.
See Figure 16.
8. Remove the hex wrench.
The C350 should now be completely assembled and ready for use as a brushcutter.
Install
Holder B
Blade
Tighten the assembly
"Blade not shown for clarity"
Combination Spark Plug/
Screwdriver Wrench
Hex Wrench
Bolt Guard
Holder B
Figure 16
Figure 15
WARNING!
Never operate the brushcutter
without the safety clip installed and
both holders tightly secured and flat
against the blade surface!
12
Mixing Fuel
1. Place the unit on a flat, level surface.
2. Clear any dirt or other debris from
around the fuel filler cap.
3. Remove the fuel cap, and fill the tank
with clean, fresh fuel.
4. Reinstall the fuel filler cap and tighten
firmly.
Filling the Fuel Tank
WARNING!
Minimize the Risk of Fire!
STOP the engine before refueling.
ALWAYS allow the unit to cool
before refueling!
Wipe all spilled fuel and move
the unit at least 10 feet (3 meters) from the fueling point 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.
NEVER smoke or light any fires
near the unit or fuels!
NEVER place any flammable
material near the engine muffler!
NEVER operate the engine with-
out the muffler and spark arrester
in place and properly functioning!
35018
Adjust Throttle Cable Free Play
1. Test the throttle lever for smooth operation. If any stiffness or binding are
noted, the cause must be identified
and corrected before the trimmer or
brushcutter can be placed in service.
2. Test the throttle lever for proper “free
play” of approximately 7mm in the
idle position. See Figures 17 and 18. If
necessary, adjustments can be made
at the carburetor by:
Temporarily moving the adjuster
cover to expose the cable adjuster.
Loosening the cable locknut and then
screwing the cable adjuster in or out
until proper free play is achieved. See
Figure 19.
7mm
Free
Play
7mm Free
Play
C350 Brushcutter
T350 Grass Trimmer
Checking
Free Play
Adjusting
Free Play
35019
Adjuster
Cover
Cable
Locknut
Cable
Adjuster
Figure 17
Figure 18
Figure 19
ASSEMBLY
IMPORTANT!
Mix only enough fuel for your immediate needs! If fuel must be stored longer
than 30 days and Shindaiwa One oil
with fuel stabilizer is not used, it should
first be treated with a fuel stabilizer
such as STA-BIL™.
C35013
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!
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 nonapproved mixing oils can lead to
excessive maintenance costs and/or
engine damage.
Use only fresh, clean unleaded gaso-
line with a pump octane rating of 87
or higher.
Mix gasoline with 50:1 Shindaiwa
Premium 2-cycle mixing oil or with an
equivalent high quality 2-cycle mixing
oil.
Example of 50:1 mixing quantities:
1 gallon of gasoline to 2.6 oz.
mixing oil.
5 liters of gasoline to 100 ml.
mixing oil.
13
5. While holding the outer tube firmly
with your left hand, use your right
hand to pull the starter handle slowly
upward until you feel the starter
engage. See Figure 22.
6. Start the trimmer by pulling the
starter handle upward rapidly.
CAUTION!
The recoil starter can be easily damaged by abuse!
Always engage the starter before
attempting to crank the engine.
Never pull the starter cord to its
full length.
Always rewind the starter cord
slowly.
37022
C35014
35020
Starting the Engine
1. Set the throttle lever to “fast idle” by
performing the following:
a. Depress and hold throttle lockout
lever “A”.
b. Squeeze and hold throttle lever “B”
(toward the handgrip).
c. Depress and hold throttle lever lock
button “C”.
d. While depressing throttle lever
lock “C”, release throttle lock lever
“B” and lockout lever “A”.
2. Slide the ignition switch to “I” (ON)
position.
3. Prime the engine by repeatedly de
pressing the carburetor primer bulb
until fuel can be seen flowing through
the transparent overflow return tube.
WARNING!
KEEP WELL CLEAR OF THE
CUTTING ATTACHMENT! THE
CUTTING ATTACHMENT MAY
ROTATE WHEN THE ENGINE IS
STARTED!
Place the trimmer on the ground
during all starting operations.
Make sure you have a secure
footing, and keep a firm grip on
the machine as well.
Keep all bystanders and pets
well clear of the trimmer during
starting.
C350 Throttle AssemblyT350 Throttle Assembly
Lock
Button C
Throttle Lever B
Throttle
Lockout
Lever A
Throttle
Lever B
Throttle
Lockout
Lever A
Lock
Button C
IMPORTANT!
The primer system only pushes fuel
through the carburetor. Repeatedly
pressing the primer bulb will not flood
the engine with fuel.
IMPORTANT!
Engine ignition is controlled by a two position switch mounted on the throttle
housing labeled, “I” for ON or START and “O” for OFF or STOP.
Ignition
Switch
Ignition
Switch
Choke
Closed
Figure 20
Figure 21
4. (Cold Engine Only) Choke the
engine by moving the choke lever
up towards the spark plug (choke is
closed). See Figure 21.
Cranking the Engine
Make sure the cutting attachment is
clear of obstructions!
Figure 22
OPERATION
14
Starting the Engine (continued)
Starting a Flooded Engine
1. Disconnect the spark plug lead, and
then use the spark plug wrench to
unscrew the spark plug (turn counterclockwise to remove).
2. If the spark plug is fouled or is soaked
with fuel, clean or replace the plug as
necessary. For spark plug specifica
tions and gapping procedure. See
page 18.
3. Crank the engine several times to
clear excess fuel from the combustion
chamber.
35026
Spark Plug
Turn
counterclockwise
to remove
4. Replace the spark plug and tighten it
firmly with the spark plug wrench. If
a torque wrench is available, torque
the spark plug to 148-165 inch-pounds
(170-190 kg/cm).
CAUTION!
Incorrect spark plug installation can
result in serious engine damage!
5. Repeat the starting procedures for a
warm engine.
6. If the engine still fails to start or fire,
refer to the troubleshooting chart at
the end of this manual.
Figure 25
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.
Idle Speed Adjustment
WARNING!
The cutting attachment must NEVER
rotate at engine idle! If the idle speed
cannot be adjusted by the procedure
described here, have the unit inspected at an authorized Shindaiwa
dealer.
Figure 26
Idle
Adjusting 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 counter-clockwise.
See Figure 26.
3. If a tachometer is available, the
engine idle speed should be final
adjusted to 3,000 (±250) RPM (min-1).
NOTE:
OPERATION
When the engine starts or fires–
37024
Choke
Open
Stopping the Engine
Idle the engine briefly before stopping
(about 2 minutes), then slide the ignition
switch to the “O” (Engine OFF) position.
See Figure 24.
35025
Figure 23
Figure 24
Ignition OFF
7. Open the choke by moving the choke
lever down (toward the fuel tank). See
Figure 23.
8. If the engine does not continue to
run, repeat the cranking procedure as
previously described.
9. When the engine starts, clear excess
fuel from the combustion area by rev
ving the engine several times with the
throttle lever.
Carburetor fuel mixture adjustments are
preset at factory on units with emission
control systems and cannot be serviced in the field.
WARNING!
The cutting attachment will rotate as
the engine accelerates!
10. Operating the throttle will automati
-
cally disengage the fast-idle setting.
If the engine does not start–
Repeat the appropriate starting procedures for a hot or cold engine. If the
engine still fails to start, use the follow
ing procedure for “Starting a Flooded
Engine”.
15
Hold the grass
trimmer so the
trimmer head is
angled slightly
into the area to
be cut. To en
sure 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. See Figure 29.
Edging
Tilt the handle about
100° to the left (from
horizontal) and move
forward, holding the
trimmer vertically as
shown. See Figure 30.
Using a Grass Trimmer (T350)
Harness required
for use with
brushcutters
Shoulder Strap
recommended for
use with
grass trimmers
NOTE:
Although a shoulder strap is not
required for use with a grass trimmer,
a shoulder strap can increase operator comfort during extended periods of
operation.
WARNING!
Always wear a harness when operating this unit with a blade. A shoulder
strap is also recommended when
using trimmer line.
NOTE:
Using a harness with a brushcutter
allows you to maintain proper control
of the unit and reduces fatigue during
extended operation.
IMPORTANT!
Adjust the shoulder strap or harness
so the shoulder pad rests comfortably
on the off-side shoulder and the cutting
path of the cutting attachment is parallel to the ground. Make sure all hooks
and adjustment devices are secure.
Shoulder Strap and Harness
Brushcutters
Figure 27
Figure 28
Trimmers
35031
Your Shindaiwa T350 Grass Trimmer
may be equipped with one of several
Shindaiwa trimmer head models, each
with features for specific applications
and/or operational requirements.
NOTE:
A grass trimmer head can also be fitted
to the Shindaiwa C350 Brushcutter.
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
manually 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 clear-
ing 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.
CAUTION!
Operation at low RPM can lead to
premature clutch failure.
Trimming and Mowing Grass
Engine Operating Speeds
Operate at full throttle while cutting
grass.
35030
Figure 30
Figure 29
OPERATION
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