Shindaiwa DH254, X7502864301 User Manual
SHINDAIWA OWNER’S/OPERATOR’S MANUAL
DH254 HEDGE TRIMMER
X7502864301
06/10
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
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.
The blades are SHARP!
Handle with care.
Keep hands clear of the
cutter blades when
starting the engine.
The Shindaiwa DH254 Hedge Trimmer
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 air-cooled
engine technology, delivering exceptionally high power at remarkable 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.
While every attempt has been made
to give you the very latest information
about your Shindaiwa product, there
may be some differences between your
DH254 hedge trimmer and what is described here.
Echo Inc. reserves the right to make
changes to products without prior notification, 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.
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 avoid
damaging your unit.
IMPORTANT!
A statement preceded by the word
IMPORTANT is one that possesses
special signicance.
NOTE:
A statement preceded by the word “NOTE”
contains information that is handy to know
and may make your job easier.
WARNING ! Surface can be hot.
Always wear gloves
when handling this
unit.
IMPORTANT!
The operational procedures described
in this manual are intended to help you
get the most from your unit, and 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
DH254 hedge trimmer, or if you do not
understand something in this manual,
your Shindaiwa dealer will be glad
to assist you. You may also contact
Shindaiwa, at the address printed on
the back of this manual.
Contents
PAGE
Introduction ............................................. 2
Attention Statements .............................. 2
General Safety Instructions ................... 3
Safety and Equipment Labels ................ 5
Specifications ........................................... 5
2
PAGE
Emission Control .................................... 6
Unit Description ...................................... 6
Assembly .................................................. 7
Mixing Fuel ............................................. 8
Filling the Fuel Tank .............................. 9
PAGE
Starting the Engine ............................... 10
Stopping the Engine ............................. 11
Maintenance and Adjustments ............ 12
Long Term Storage
................................
18
Troubleshooting Guide ........................ 19
Warranty Statement
................................ 22
DH251003
DO NOT OPERATE THIS UNIT
IF YOU ARE TIRED, ILL OR
UNDER THE INFLUENCE OF
ALCOHOL, DRUGS, OR
MEDICATION.
General Safety Instructions
Work Safely
Shindaiwa hedge trimmers 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 your unit!
WORK SAFELY!
Always wear close-tting clothing. Gloves offer
added protection and are strongly recommended.
Do not wear clothing or jewelry that could get
caught in machinery.
Never allow children to use
the unit. Avoid operating near
bystanders.
WARNING!
Never make unauthorized attachment installations.
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.
WARNING!
Minimize the Risk of Fire!
ALWAYS check unit for fuel leaks
before use. Check for leaks around
fuel tank cap while refueling. If fuel
leaks are found immediately stop
using the unit. Fuel leaks must be
repaired before using unit.
ALWAYS move the unit to a place
well away from a fuel storage area
or other readily ammable materials
before starting the engine.
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.
Use extreme caution when
operating near fences or
electric wiring.
Figure 1
Always operate with
both hands rmly
gripping the unit.
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.
Always keep proper footing and do not
overreach. Maintain your balance at all
times during operation.
3
Operating Precautions
Never transport the hedge trim- ■
mer or leave it unattended with the
engine running. An engine that’s
running could be accidently accelerated causing the blades to oscillate.
■
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
serviceable 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!
WARNING!
■
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.
■
Make sure the cutters are correctly adjusted before operating
the hedge trimmer (see the section ”Blades” for cutter adjustment
procedures). 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 springback 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 refueling. 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.
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
CAUTION!
■
Always maintain the hedge trimmer according to this owner’s manual and follow the recommended
scheduled maintenance.
■
Never modify or disable any of the
hedge trimmer’s safety devices.
Doing so may cause damage and
lead to personal injury
■
Always use genuine Shindaiwa
parts and accessories when repairing or maintaining this machine.
WARNING!
Inspect front and rear handles for damaged or loose attachments before use. NEVER operate a hedge trimmer
with damaged or loose handles.
Do not make unauthorized modi-
■
cations to the hedge trimmer or its
components.
■
Keep the cutters sharp and properly adjusted.
■
Never allow the engine to run at
high speed without a load. Doing
so could damage the engine.
■
When transporting the hedge
trimmer 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 refueling. 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.
■
Always clear your work area of
trash or hidden debris to help
ensure good footing.
■
Keep the hedge trimmer as clean
as possible. Keep it free of loose
vegetation, mud, etc.
4
Safety Equipment and Labels
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.
Ignition
Switch
Throttle Interlock
Figure 2
Specications
Caution Label
Blade 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.
Model DH254-24 DH254-30
Engine Type 4-cycle, horizontal cylinder, air cooled
Engine Bore x Stroke 34mm x 27mm (1.34 x 1.06 in)
Engine Displacement 24.5cc (1.5 in3)
Unit Weight, Less Fuel 6.0 kg (13.2 lb) 6.2 kg (13.7 lb)
Unit Dimensions (LxWxH)
1100 x 255 x 230 mm (43.31 x 9.65 x 9.06 in) 1220 x 255 x 230 mm (48.03 x 9.65 x 9.06 in)
Fuel Tank Capacity 0.55 liter/ 18.6 oz.
Fuel/oil ratio 50:1 with *ISO-L-EGD or JASO FD class engine Oil
Carburetor Diaphragm type
Ignition Electronic
Spark Plug NGK CMR5H
Electrode Gap 0.6 mm/ .024 in.
Torque 16.7 - 18.6 N∙m / 148-165 in • lbf
Air Cleaner Foam pre-lter; main lter: dry element
Mufer Type Spark arrestor mufer or spark arrestor mufer with catalyst
Starting Method Recoil type
Stopping Method Slide switch,grounding type
Blade Length 610 mm (24.02 in) 740 mm (29.13 in)
Blade Type Double-blade cutting action: double-edged blade
Clutch Type Centrifugal clutch, dry-type
Gear Type Spur gears
Gear Lubrication Lithium-based grease
Standard Equipment
Rear handle with integral controls, anti-vibe mountings
front handle with guard, spark plug wrench
,
and blade scabbard (cover)
Engine Speed 3,000 RPM
Clutch Engagement Speed 4,100 RPM
Wide Open Throttle Speed (W.O.T.) 10,500 RPM
Specications are subject to change without notice.
This spark ignition system complies with the Canadian standard ICES-002.
IMPORTANT!
5
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.
An Emission Control Label is located on the unit. (This is an EXAMPLE ONLY; information on label varies by en-
gine 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.
Unit Description
Familiarize yourself with your machine and its various components. Understanding your machine helps ensure top performance,
long service life, and safer operation.
Prior to use
Before using this product, please make sure you have all the components required for a complete unit:
Unit assembly ■
Cutter blade cover ■
Kit with this manual and tool kit for routine maintenance. ■
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 of this product.
WARNING!
Do not make unauthorized modications or alterations to this machine or any of its components or accessories.
Cutter
Guide Bar
Blade Cover
Front Handle
Protector
Recoil
Starter
Rear Handle
Mufer
Throttle
Trigger
Figure 3
Ignition
Switch
Fuel Cap
Fuel Tank
Choke
Air Cleaner
Cover
Gearcase
6
Assembly
NOTE:
For normal cutting, Shindaiwa strongly recommends the blade stiffener be installed.
In extreme conditions, such as commercial cutting, or when cutting thick and/
or dense branches, efficiency may be increased by trimming without the blade
stiffener.
Tools required: 8 mm socket and extension, 4 mm hex wrench
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.
Blade Stiffener Removal
Move stop switch to stop position.1.
Disconnect spark plug wire.2.
WARNING!
Hedge clipper blades are very sharp. Touching them may lead to severe
personal injury. Use a socket and extension when removing locknuts in order
to keep hands at a safe distance from sharp blades.
Remove seven (7) blade stiffener locknuts (A).3.
Remove blade stiffener.4.
NOTE:
Assure blade bolts (B) are tightened securely.
Install first, second, third locknuts (C) closest to handle. Retain remaining 4 5.
locknuts for future use.
NOTE:
Use new locknuts every other time blade stiffener is installed or removed.
A
B
C
7
Install Blade Stiffener
Move stop switch to stop position.1.
Disconnect spark plug wire.2.
WARNING
Hedge clipper blades are very sharp. Touching them may lead to severe
personal injury. Use a socket and extension when removing locknuts in
order to keep hands at a safe distance from sharp blades.
Remove first three (3) locknuts (C) closest to handle.3.
Install blade stiffener.4.
NOTE:
Assure blade bolts (B) are tightened securely.
Secure blade stiffener with seven (7) locknuts (A).5.
IMPORTANT!
If blade stiffener is damaged or show signs of wear, replace it.
C
NOTE:
Use new locknuts every other time blade stiffener is installed or removed.
B
A
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.
Hybrid 4TM Mixture Oil - Engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345/FD standards must be
used. Shindaiwa highly recommends using Shindaiwa Red ArmorTM engine oil in all Shindaiwa Hybrid 4TM engines 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. Engine problems
due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345/FD certied
oil will void the engine warranty.
IMPORTANT!
TM
Shindaiwa Red Armor
gardless of ratio specied in those manuals.
8
engine oil may be mixed at 50:1 ratio for application in all Shindaiwa engines sold in the past, re-
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.
Mixing Instructions
Fill an approved fuel container with half of the required amount of1.
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.5.
IMPORTANT!
Spilled fuel is a leading cause of hydrocarbon emissions. Some states may
require the use of automatic fuel shut-off 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
WARNING!
Minimize the Risk of Fire
NEVER ■ smoke or light res near the
engine.
ALWAYS
■ stop the engine and allow it
to cool before refueling.
ALWAYS
■ Wipe all spilled fuel and
move at least 3 meters (10 feet) from
the fueling point and source before
starting.
NEVER
■ place ammable material
close to the engine mufer.
NEVER ■ operate the engine without the
mufer and spark arrester screen in
place and in good working condition.
FUEL IS HIGHLY FLAMMABLE. ■
ALWAYS ■ store gasoline in a container
approved for ammable liquids.
ALWAYS
■ inspect the unit for fuel leaks
before each use. During each rell,
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 at least 3
meters (10 feet) away from a fuel stor-
age area or other readily ammable
materials before starting
the engine.
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.
Place the unit on a flat, level surface.1.
Clear any dirt or other debris from 2.
around the fuel filler cap.
CAUTION!
Slowly remove the fuel cap only
after stopping the engine
Remove the fuel cap, and fill the tank 3.
with clean, fresh fuel.
Reinstall the fuel filler cap and 4.
tighten firmly.
Wipe away any spilled fuel before 5.
starting engine.
9
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