Shindaiwa HT231 User Manual
SHINDAIWA OWNER / OPERATOR’S MANUAL
HT231 HEDGE TRIMMER
X7502862800
02/10
WARNING
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.
Introduction
The Shindaiwa 231 series of hand-held power equipment is designed and built to deliver superior performance and
reliability without compromise to quality, comfort, safety or durability. Shindaiwa engines represent the leading edge of highperformance 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 these instructions describes units available at the time of publication.
Echo, Inc. reserves the right to make changes to products without prior notice, and without obligation to make alterations to
units previously manufactured.
WARNING!
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
Contents
Safety ...................................................3
Product Description ...............................6
Specications ........................................7
Mixing fuel .............................................8
Filling the fuel tank.................................9
Starting the Engine .............................10
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
series of hand-held power equipment, or if you do not understand something in this manual, contact Shindaiwa at the
address printed on the back of this Manual.
PAGE
PAGE
Stopping the engine.............................12
Operation .............................................12
Maintenance ........................................13
Troubleshooting Guide ........................19
Warranty ..............................................22
IMPORTANT!
Attention Statements
Throughout this manual are special “attention statements”.
DANGER!
A statement preceded by the triangular attention symbol and
the word “DANGER” contains information that should be acted upon
to prevent serious injury or death.
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.
NOTE:
A statement preceded by the word
“NOTE” contains information that is
handy to know and may make your job
easier.
IMPORTANT!
A statement preceded by the word “IMPORTANT” is one that possesses
special signicance.
2
Safety and operation labels
HOT SURFACE
A hedge trimmer has the potential to cause
serious personal injury to the operator or
bystanders if misused, abused or mishandled.
You must observe all special safety instructions
to reduce the risk of personal injury.
Read and follow this manual, make sure anyone
using the trimmer does likewise. Failure to do
so could result in serious personal injury or
machine failure. Keep this manual for future
reference.
Always wear a hard hat to reduce the risk of
head injuries during operation of this machine.
In addition, always wear eye and hearing protection. Shindaiwa recommends wearing a face
shield as additional face and eye protection.
The blades are SHARP. Handle with care.
Keep hands clear of the cutter blades when
starting the engine.
WARNING !Surface can be hot. Always wear
gloves when handling this unit.
Safety
Work Safely
A hedge trimmer has the potential to cause serious personal injury to the operator or bystanders if misused, abused
or mishandled. To reduce the risk of injury, you must maintain control at all times, and observe all safety precautions
during operation. Never permit a person without training or instruction to operate this machine!
Stay Alert
You must be physically and mentally t to operate this unit safely.
WARNING!
Hedge Clipper blades are very sharp. Touching them may lead to severe personal injury. Avoid touching
blades whenever possible, and always wear gloves to protect hands
WARNING!
Never make unauthorized attachment installations. Always use genuine Shindaiwa parts and accesso-
ries when repairing or maintaining this unit.
WARNING!
Operation of this equipment may create sparks that can start res around dry vegetation. This unit is
equipped with a spark arrestor and a spark arrestor may be required. The operator should contact local re
agencies for laws or regulations relating to re prevention requirements.
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.
WARNING!
Moving parts can amputate ngers or cause severe injuries. Keep hands, clothing and loose objects
away from all openings.
• ALWAYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop
before removing obstructions, clearing debris, or servicing unit.
• DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit.
• NEVER reach into any opening while the engine is running. Moving parts may not be visible through open-
ings.
WARNING!
Engine exhaust IS HOT, and contains Carbon Monoxide (CO), a poison gas. Breathing CO can cause unconsciousness, serious injury, or death. Exhaust can cause serious burns. ALWAYS position unit so that exhaust is
directed away from your face and body.
3
HOT SU RFACE
CAUTION
READ AND
FOLLOW THE
INSTRUCTIONS
IN THE
OPERATORS
MANUAL.
WEAR EYE
AND HEARING
PROTECTION
AT ALL TIMES
DURING
OPERATION.
THE BLADES
ARE SHARP!
HANDLE WITH
CARE.
KEEPS HANDS
CLEAR OF
CUTTER
BLADES WHEN
STARING THE
ENGINE.
WARNING!
Use Good Judgement
NEVER transport the unit or leave it
unattended with the engine running.
An engine that’s running could be accidently accelerated causing the blades
to move.
Make sure that the blade cover is in
place when transporting or storing the
hedge trimmer.
ALWAYS make sure that the cutter
attachment and all handles and guards
are properly installed and rmly tightened before operation.
Inspect for broken, missing or improperly installed parts or attachments.
NEVER use a cracked or warped cutter
or cutter bar: replace it with a service-
able one and make sure it ts properly.
Make sure there are no missing or
loose fasteners, and that the stop
switch and throttle controls are working
properly.
Make sure there is always good ventilation when operating the hedge trimmer.
Fumes from engine exhaust can cause
serious injury or death. NEVER run the
engine indoors!
NEVER smoke or light res near the hedge
trimmer. Keep the unit away from excessive
heat. Engine fuel is very ammable and
re could lead to serious personal injury or
property damage.
Do not operate this machine with the muf-
er removed.
NEVER attempt cutter adjustment with the
engine running!
Before starting the engine, make sure the
cutter is not contacting anything.
ALWAYS conrm safe operation when
using the machine.
Immediately stop the engine with the stop
switch if the machine suddenly begins to
vibrate or shake.
ALWAYS stop the engine immediately and
check for damage if you strike a foreign object
or if the machine becomes tangled. Do not operate with broken or damaged equipment.
When cutting a branch that is under tension, be alert for spring-back so that you will
not be struck by the moving branch.
If a cutter should bind fast in a
cut, shut off the engine immediately. Push the branch or tree to
ease the bind and free the cutter.
ALWAYS stop the engine and
allow it to cool before refuelling.
Avoid overlling and wipe off
any fuel that may have spilled.
To reduce re hazard, keep
the engine and mufer free of
debris, leaves, or excessive
grease.
KEEP A SOLID STANCE
Maintain footing and balance
at all times. Do not stand on
slippery, uneven or unstable
surfaces. Do not work in odd
positions or on ladders. Do not
over reach.
Safety devices and labels
ON-OFF Switch
Throttle
Interlock
Cover
Protector
IMPORTANT!
Caution, Danger, Warning, 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.
4
Safety (continued)
Operating the Hedge Trim-
ALWAYS protect yourself from hazards
such as thorny brush and ying debris
by wearing gloves and close tting
clothing that covers arms and legs.
Never wear shorts. Don’t wear loose
clothing or items such as jewelry that
could get caught in machinery or
underbrush. Secure long hair so it is
above shoulder level.
ALWAYS wear eye, ear,
and hand protection while
operating this unit!
ALWAYS stop the engine before
removing branches or debris from
the cutters! Never allow the cutters
to contact buildings or other hard
objects!
ALWAYS stop the engine and install
the blade cover before moving to
another work site, and maintain a rm
footing while operating or carrying the
trimmer.
NEVER cut metal objects
or wire with the blade.
NEVER allow children to use
the unit. Avoid operating near
bystanders.
ALWAYS grip support handle
with right hand and throttle
handle with left hand.
NEVER operate this unit if the
safety guard has been removed or
damaged!
AVOID using or storing this unit in a wet
environment. Water on the cutters may
enter the gearcase and damage your unit.
AVOID cutting large or extremely
“woody” branches. Doing so can shorten
cutter life, and may also damage the
gearcase.
USE EXTREME CAUTION
when operating near fences
or electric wiring.
Always maintain this unit according to this owner’s manual and follow the recommended scheduled
maintenance.
Never modify or disable any of the
unit’s safety devices.
Always use genuine Shindaiwa parts
and accessories when repairing or
maintaining this machine.
Do not make unauthorized modications to the unit.
ALWAYS keep proper footing and do
not overreach. Maintain your balance at
all times during operation.
CAUTION
Never allow the engine to run at high
RPM without a load. Doing so could
damage the engine.
When transporting the unit in a vehicle, tie it down securely to prevent fuel
spillage or damage to the machine.
Always stop the engine and allow it to
cool before refuelling. Avoid overlling
and wipe off any fuel that may have
spilled.
Never place ammable material close
to the engine mufer and never run
the engine without the spark arrestor
screen in place.
Keep the cutters sharp and properly
adjusted.
Keep the unit as clean as possible.
Keep it free of loose vegetation, mud,
etc.
5
Product Description
Cutter blades
WARNING!
Blade protector
Mufer
On/Off Switch
Support handle
Recoil
starter
Throttle
Throttle
interlock
Blade
protecter
Throttle
handle
Using the illustration as a
guide, familiarize yourself
with this unit and its various
components. Understanding
your machine helps ensure
top performance, longer service life, and safer operation.
Support
Guard
handle
Do not alter this machine or any
of its components!
Fuel tank
Air lter cover
This unit comes completely assembled. Before using this product, please make sure you have all the components
required for a complete unit. Carefully inspect all components for damage.
• This user manual
• T-wrench
• Blade protecter
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.
6
Specications
Model HT231-30 HT231-40
Engine Type 2-cycle, horizontal cylinder, air cooled
Engine Bore x Stroke 32 mm x 28 mm (1.26 in x 1.10 in.)
Engine Displacement 22.5cc (1.37 in3)
Unit Weight, Less Fuel 5.9 kg (13.0 lb) 6.4 kg (14.1 lb)
Unit Dimensions (LxWxH) 990 x 210 x 210 mm (38.98 x 8.17x8.27 in) 1330 x 210 x 210 mm (53.26 x 8.27 x 8.27
Fuel Tank Capacity 0.6 liter/20.3 oz.
Fuel/oil ratio 50:1 with *ISO-L-EGD or JASO FD class 2-cycle Mixing Oil
Carburetor Diaphragm type
Ignition Fully electronic, transistor controlled
Spark Plug NGK BPMR6A
Electrode Gap .65 mm (.026 in)
Torque 150-170 kgf • cm / 130-150 in • lbf
Air Cleaner Foam element
Mufer Type Spark arrestor mufer or spark arrestor mufer with catalyst
Starting Method Recoil type
Stopping Method Slide switch,grounding type
Blade Length 740 mm (29.13 in) 1080 mm (42.52 in)
Blade Type Double-blade cutting action: single-edged blade
Clutch Type Centrifugal clutch, dry-type
Gear Type Spur gears
Gear Lubrication Lithium-based grease
Standard Equipment
Idle Speed (RPM)
Clutch Engagement Speed (RPM)
Wide Open Throttle (RPM)
Specications are subject to change without
notice.
Rear handle w/integral controls, anti-vibe mountings, front handle w/guard, tool set, blade scabbard.
2,750 - 3,000
4,000
11,000 - 13,000
Emission Control (exhaust & evaporative)
EPA 2010 and Later and/or C.A.R.B. TIER III
The emission control system for the engine is EM/TWC (Engine Modication and 3-way Catalyst) and for the fuel tank
the Control System is EVAP (Evaporative Emissions) or N (for nylon tank). Evaporative emission may be applicable to
California models only.
Emission Control Label (located on Engine) (EXAMPLE ONLY, information on label varies by FAMILY).
PRODUCT EMISSION DURABILITY (EMISSION COMPLIANCE PERIOD)
The 300 hour emission compliance period is the time span selected by the manufacturer certifying the engine
emissions output meets applicable emissions regulations, provided that approved maintenance procedures are
followed as listed in the Maintenance Section of this manual.
7
Mixing Fuel
WARNING!
Alternative fuels, such as E15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting Shindaiwa
requirements are NOT approved for use in Shindaiwa gasoline engines. Use of alternative fuels may cause
performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation, including,
but not limited to, improper clutch engagement. Alternative fuels may also cause premature deterioration of fuel
lines, gaskets, carburetors and other engine components.
Fuel Requirements
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain
up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood
alcohol) is NOT approved.
2 Stroke Mixture Oil - A 2-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345/FD standards
must be used. Shindaiwa OneTM 2-Stroke Oil is strongly recommended as it meets this standard and is specically
formulated for use in all Shindaiwa 2-stroke engines. Engine problems due to inadequate lubrication caused by fail-
ure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345/FD certied oil will void the engine warranty.
For increased engine protection, Shindaiwa recommends using Shindaiwa Red ArmorTM engine oil to protect the
engine from harmful carbon build up, maintain engine performance, and increase engine life. Shindaiwa Red ArmorTM
engine oil exceeds ISO-L-EGD and J.A.S.O. M345/FD performance requirements.
IMPORTANT!
Shindaiwa OneTM 2-Stroke oil or Red ArmorTM engine oil may be mixed at 50:1
ratio for application in all Shindaiwa engines sold in the past, regardless of ratio
specied in those manuals.
IMPORTANT!
Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30)
days, ninety (90) days when a fuel stabilizer is added. Use of unmixed, improperly mixed, or stale fuel, may cause hard starting, poor performance, or severe
engine damage and void the product warranty. Read and follow instructions in
the Long Term Storage section of this manual.
Examples of 50:1 mixing quantities
Handling Fuel
DANGER
Fuel is VERY ammable. Use extreme care when mixing, storing or handling or serious personal injury may result.
• Use an approved fuel container.
• DO NOT smoke near fuel.
• DO NOT allow ames or sparks near fuel.
• Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to equalize.
• NEVER refuel a unit when the engine is HOT or RUNNING!
• DO NOT ll fuel tanks indoors. ALWAYS ll fuel tanks outdoors over bare ground.
• DO NOT overll fuel tank. Wipe up spills immediately.
• Securely tighten fuel tank cap and close fuel container after refueling.
• Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is repaired.
• Move at least 3m (10 ft.) from refueling location before starting the engine.
8
Mixing Instructions
1. Fill an approved fuel container with half of the required amount of gasoline.
2. Add the proper amount of engine oil to gasoline.
3. Close container and shake to mix oil with gasoline.
4. Add remaining gasoline, close fuel container, and
remix.
IMPORTANT!
Spilled fuel is a leading cause of hydrocarbon emissions.
Some states may require the use of automatic fuel shutoff containers to reduce fuel spillage.
After use
• DO NOT store a unit with fuel in its tank. Leaks can
occur. Return unused fuel to an approved fuel storage
container.
Filling the fuel tank
Place the unit on a at, level surface.1.
Clear any dirt or other debris from around the fuel ller cap.2.
Remove the fuel cap, and ll the tank with clean, fresh fuel.3.
Storage - Fuel storage laws vary by locality. Contact
your local government for the laws affecting your area.
As a precaution, store fuel in an approved, airtight container. Store in a well-ventilated, unoccupied building,
away from sparks and ames.
IMPORTANT!
Stored fuel may separate. ALWAYS shake fuel container
thoroughly before each use.
CAUTION!
Slowly remove the fuel cap only after stopping the
engine
Reinstall the fuel ller cap and tighten rmly.4.
Wipe away any spilled fuel before starting engine.5.
9
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