SHINDAIWA OWNER'S/OPERATOR'S MANUAL

HT230 HEDGETRIMMER

WARNING!

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Minimize the risk of injury to yourself and others! Read this manual andfamiliarize yourself with the contents. Always wear eye and hearingprotection when operating this unit.

Part Number 80837 Rev. 4/04

Shindaiwa Inc.11975 S.W. Herman Rd.Tualatin, Oregon 97062Telephone: 503 692-3070Fax: 503 692-6696www.shindaiwa.com

Shindaiwa Kogyo Co., Ltd.Head Office: 6-2-11 OzukaNishi, Asaminami-kuHiroshima, 731-3167, JapanTelephone: 81-82-849-2220Fax: 81-82-849-2481

�2004 Shindaiwa, Inc.

Part Number 80837Revision 4/04

Shindaiwa is a registered trademarkof Shindaiwa, Inc.Specifications subject to change without notice.

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IntroductionPAGEThe Shindaiwa HT230 series of hand

power tools has been designed andbuilt to deliver superior performanceand reliability without compromise toquality, comfort, or durability.

Shindaiwa high performanceengines represent the leading edge of2-cycle engine technology, deliveringexceptionally high power at remark-able low displacement and weight. Asan owner/operator, you’ll soondiscover for yourself why Shindaiwa issimply in a class by itself!

IMPORTANT!The information contained in thismanual describes units available atthe time of publication.

While every attempt has beenmade to give you the very latestinformation about your Shindaiwaproduct, there may be some differ-ences between your HT230 seriesunit and what is described here.Shindaiwa Inc. reserves the right tomake changes to products withoutprior notification, and without obliga-tion to make alterations to machinespreviously manufactured.

WARNING!

The engine exhaust from this unitcontains chemicals known to theState of California to causecancer, birth defects or otherreproductive harm.

Contents

Attention Statements ........................... 3General Safety Instuctions ................. 4Safety Equipment and Labels ............ 6Unit Description .................................. 7Specifications ....................................... 8Mixing Fuel .......................................... 9Filling the Fuel Tank .......................... 9Starting Procedure ............................ 10Starting a Flooded Engine ................ 12Idle Speed Adjustment ...................... 13Stopping the Engine .......................... 13Maintenance and Adjustments ........ 14Long Term Storage ........................... 17Troubleshooting Guide .................... 18Emission System Warranty Statement ..................... 22

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MAINTENANCE AND REPAIR REQUIREMENTS

You are responsible for the proper use and maintenance of the engine. You should keep allreceipts and maintenance records covering the performance of regular maintenance in theevent questions arise. These receipts and maintenance records should be transferred to eachsubsequent owner of the engine. Shindaiwa Kogyo Co., Ltd. reserves the right to denywarranty coverage if the owner has not properly maintained the engine. Shindaiwa KogyoCo., Ltd. will not deny warranty repairs, however, solely because of the lack of repair,maintenance or failure to keep maintenance records.

MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES ANDSYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT OR INDIVIDUAL;HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A DEALER OR SERVICECENTER AUTHORIZED BY SHINDAIWA KOGYO CO., LTD. THE USE OF PARTS THATARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZEDPARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEMAND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.

If other than the parts authorized by Shindaiwa Kogyo Co., Ltd. are used for maintenancereplacements or for the repair of components affecting emission control, you should assureyourself that such parts are warranted by their manufacturer to be equivalent to the partsauthorized by Shindaiwa Kogyo Co., Ltd. in their performance and durability.

OBTAINING WARRANTY SERVICE

All repairs qualifying under this limited warranty must be performed by a dealer authorizedby Shindaiwa Kogyo Co., Ltd. If any emission-related part is found defective during the warranty period, it is yourresponsibility to present the product to an authorized Shindaiwa dealer. Bring your salesreceipts showing the date of purchase for this engine. The dealer authorized by ShindaiwaKogyo Co., Ltd. will perform the necessary repairs or adjustments within a reasonableamount of time and furnish you with a copy of the repair order. All parts and accessoriesreplaced under this warranty become the property of Shindaiwa Kogyo Co., Ltd. To locate an authorized Shindaiwa dealer near you, contact your Shindaiwa Distributor. Forthe name and telephone number of the Shindaiwa Distributor in your area, please callShindaiwa Inc. at (503) 692-3070 between the hours of 8:00 AM and 5:00 PM Pacific StandardTime.

THIS WARRANTY IS ADMINISTERED BY

Shindaiwa Inc.11975 S.W. Herman Rd.Tualatin OR. 97062(503) 692-3070

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WARNING!

A statement preceded by thetriangular Attention Symbol andthe word WARNING containsinformation that should be actedupon to prevent serious bodilyinjury.

CAUTION!A statement preceded by theword CAUTION contains infor-mation that should be acted uponto avoid damaging the unit.

IMPORTANT!A statement preceded by the wordIMPORTANT is one that possessesspecial significance.

IMPORTANT!The operational procedures de-scribed in this manual are intended tohelp you get the most from this unit,and to protect you and others fromharm. These procedures are guide-lines for safe operation under mostconditions, and are not intended toreplace any safety rules and/or lawsthat may be in force in your area.

If you have questions regardingyour HT230, or if you do not under-stand something in this manual, yourShindaiwa dealer will be glad toassist you.

You may also contact Shindaiwa,Inc., at the address printed on theback of this manual.

Attention StatementsRead and follow this Operator’sManual. Failure to do so couldresult in serious injury.

Wear eye and hearingprotection at all times duringthe operation of this unit.

The blades are SHARP!Handle with care.

Keep hands clear of thecutter blades when startingthe engine.

Do not operate this unit ifyou are tired, ill or under theinfluence of alcohol, drugs,or medicine.

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Shindaiwa Kogyo Co., Ltd.Federal Emission Design And Defect Limited Warranty

Utility And Lawn And Garden Engines Shindaiwa Kogyo Co., Ltd. warrants to the initial purchaser and each subsequent owner,that this utility equipment engine (herein engine) is designed, built and equipped to conformat the time of initial sale, to all applicable regulations of the U.S. Environmental ProtectionAgency (EPA), and that the engine is free of defects in materials and workmanship that wouldcause this engine to fail to conform with EPA regulations during its warranty period. Thisemission warranty is applicable in all States, except the State of California. For parts listed under PARTS COVERED, the dealer authorized by Shindaiwa Kogyo Co.,Ltd. will, at no cost to you, make the necessary diagnosis, repair, or replacement of anydefective emission-related component to ensure that the engine complies with applicable U.S.EPA regulations.

MANUFACTURERS WARRANTY COVERAGE

When sold within the U.S., this engine’s emission control system is warranted for a periodof two (2) years from the date this product is first delivered to the original retail purchaser.

OWNER’S WARRANTY RESPONSIBILITIES

As the engine owner, you are responsible for the performance of the required maintenancelisted in your owner’s manual. Shindaiwa Kogyo Co., Ltd. recommends that you retain allreceipts covering maintenance on your engine, but Shindaiwa Kogyo Co., Ltd. cannot deny awarranty claim solely for the lack of receipts or for your failure to ensure the performance ofall scheduled maintenance. As the engine owner, you should however be aware that Shindaiwa Kogyo Co., Ltd. maydeny your warranty coverage if your engine or a part has failed due to abuse, neglect,improper maintenance or unapproved modifications. You are responsible for presenting your engine to the nearest dealer authorized byShindaiwa Kogyo Co., Ltd. when a problem exists. If your Shindaiwa Dealer is unable to answer questions regarding your warranty rights andresponsibilities, you should then contact your Shindaiwa Distributor. For the name and telephone number of the Shindaiwa Distributor in your area, please callShindaiwa Inc. at (503) 692-3070 between the hours of 8:00 AM and 5:00 PM Pacific StandardTime.

PARTS COVERED

Listed below are the parts covered by the Federal Emission Design and Defect Warranty.Some parts listed below may require scheduled maintenance and are warranted up to the firstscheduled replacement of that part. The warranted parts include:1. Carburetor Internal Components

• Valve Assembly-throttle, Jet, Metering Diaphram2. Ignition System Components

• Ignition Coil• Flywheel Rotor

The emission control system for your particular Shindaiwa engine may also include certainrelated hoses and connectors.

LIMITATIONS

The Federal Emission Design and Defect Warranty shall not cover any of the following:(a) conditions resulting from tampering, misuse, improper adjustment (unless they

were made by the dealer or service center authorized by Shindaiwa Kogyo Co., Ltd. during awarranty repair), alteration, accident, failure to use the recommended fuel and oil, or notperforming required maintenance services,

(b) the replacement parts used for required maintenance services,(c) consequential parts used for required maintenance services,(d) diagnosis and inspection fees that do not result in eligible warranty service being

performed, and(e) any non-authorized replacement part, or malfunction of authorized parts due to use

of non-authorized parts.

The following statement only applies to United States and its territories

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Work SafelyHedge trimmers operate at very highspeeds and can do serious damage orinjury if they are misused or abused.Never allow a person without training orinstruction to operate this unit!

WARNING!

Use Good JudgmentNEVER run the engine whentransporting the unit.NEVER run the engine indoors!Make sure there is always goodventilation. Fumes from engineexhaust can cause serious injury ordeath.ALWAYS use the proper cuttingtool for the job.ALWAYS stop the unit immedi-ately if it suddenly begins to vibrateor shake. Inspect for broken,missing or improperly installedparts or attachments.ALWAYS keep the unit as clean aspractical. Keep it free of loosevegetation, mud, etc.ALWAYS hold the unit firmly withboth hands when cutting ortrimming, and maintain control atall times.ALWAYS keep the handles clean.ALWAYS disconnect the sparkplug wire before performing anymaintenance work.ALWAYS, if the cutter shouldbind fast in a cut, shut off theengine immediately. Push thebranch to ease the bind and freethe cutter.

Stay AlertYou must be physically and mentallyfit to operate this unit safely.

General Safety Instructions

WARNING!

Never make unauthorized attach-ment installations.

WARNING!

Never operate power equipment ofany kind if you are tired or if youare under the influence of alcohol,drugs, medication or any othersubstance that could affect yourability or judgement.

WARNING!

Minimize the Risk of FireNEVER smoke or light fires nearthe unit.ALWAYS stop the engine andallow it to cool before refueling.Avoid overfilling and wipe off anyfuel that may have spilled.ALWAYS inspect the unit for fuelleaks before each use. During eachrefill, check that no fuel leaks fromaround the fuel cap and/or fueltank. If fuel leaks are evident, stopusing the unit immediately. Fuelleaks must be repaired beforeusing the unit.ALWAYS move the unit to a placewell away from a fuel storage areaor other readily flammable materi-als before starting the engine.NEVER place flammable materialclose to the engine muffler.NEVER run the engine without thespark arrester screen in place.

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Troubleshooting Guide (continued)ADDITIONAL PROBLEMS (cont.)

Cutters move at engine idle.

Engine idle too high.

Broken clutch spring orworn clutch spring boss.

Set idle: 3,000 (±250) rpm (min-1)

Replace spring/shoes asrequired, check idle speed.

Excessive vibration

Warped or damaged guide bar or cutters

Damaged gearcase or cam case.

Shoulder bolts/cuttersworn or out of adjustment.

Inspect and replace as required.

Consult with an authorizedservicing dealer.

Adjust or replace as required.See page 16 for adjustmentprocedure.

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HT2326

General Safety InstructionsWORK SAFELY! S

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Avoid using or storing this unitin a wet environment. Water onthe cutters may enter thegearcase and damage yourmachine.

Always wear eye, ear,and hand protectionwhile operating thisunit!

Always wear close-fitting clothing. Gloves offer added protectionand are strongly recommended. Do not wear clothing or jewelrythat could get caught in machinery. Secure long hair so that it isabove shoulder level.

Always keep proper footing and do not overreach.Maintain your balance at all times during operation.

Use extreme caution whenoperating near fences or electricwiring.

Never cut metal objects orwire with the blade.

Never operate this unit ifthe safety guard isdamaged!

Never allow children to use theunit. Avoid operating nearbystanders.

Always stop the engineand install the blade coverbefore moving to anotherwork site, and maintain afirm footing whileoperating or carrying thehedge trimmer.

Always stop the engine beforeremoving branches or debris fromthe cutters! Never allow the cuttersto contact buildings or other hardobjects!

Never operate thisunit at full throttle no-load rpm!

Avoid cutting large orextremely “woody”branches. Doing so canshorten cutter life, andmay also damage thegearcase.

Always operate withboth hands firmlygripping the unit.

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Troubleshooting Guide (continued)ADDITIONAL PROBLEMS

Pooracceleration.

Clogged air filter.

Clogged fuel filter.

Carburetor mixture too lean.

Idle speed set too low.

Clean or replace the air filter.

Replace the fuel filter.

Consult with an authorizedservicing dealer.

Adjust: 3,000 (±250) rpm (min-1).

Symptom Possible Cause Remedy

Engine stopsabruptly.

Switch turned off.

Fuel tank empty.

Water in the fuel.

Clogged fuel filter.

Shorted spark plug orloose terminal.

Ignition failure.

Piston seizure.

Reset the switch and re-start.

Refill with clean fresh unleadedgasoline with a pump octane of87 or higher, mixed with Shindaiwa Premium 2-cyclemixing oil at a 50:1 gasoline/oil ratio.

Drain; replace with fresh fuelmixture. See above.Replace fuel filter.

Clean or replace the plug witha Champion CJ8 or equivalenttype spark plug of the correct heat range. For EMC compliance,use NGK BMR6A Re-start.

Replace the ignition unit.

Consult with an authorizedservicing dealer.

Engine difficultto shut off.

Ground (stop) wire isdisconnected, or switch is defective.

Overheating due to incorrect spark plug.

Overheated engine.

Test and replace as required.

Replace the plug witha Champion CJ8 or equivalenttype spark plug of the correct heat range. For EMC compliance,use NGK BMR6A Re-start.

Idle engine until cool.

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HT2301

Safety Equipment and Labels

ON-OFFSwitch Throttle

Lockout

Cover

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 Shindaiwadealer.

WARNINGUse caution to

avoid misassemblyAssemble as per illustration

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Caution Labelp/n 19402-00110

Caution Label p/n 19402-00144

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Troubleshooting Guide (continued)LOW POWER OUTPUT

Is the engineoverheating?

Operator is overworkingthe unit.

Carburetor mixture istoo lean.

Improper fuel/oil ratio.

Fan, fan cover, cylinderfins dirty or damaged.

Carbon deposits on the piston or in the muffler.

Cut at a slower rate.

Consult with an authorizedservicing dealer.

Refill with clean fresh unleadedgasoline with a pump octane of87 or higher, mixed with Shindaiwa Premium 2-cyclemixing oil at a 50:1 gasoline/oil ratio.

Clean, repair, or replace as necessary.

Consult with an authorizedservicing dealer.

What To Check Possible Cause Remedy

Engine is roughat all speeds. May also haveblack smokeand/or unburnedfuel at theexhaust.

Clogged air filter.

Loose or damagedspark plug.

Air leakage or cloggedfuel line.

Water in the fuel.

Piston seizure.

Faulty carburetor and/ordiaphragm.

Clean or replace the filter.

Tighten or replace the plug witha Champion CJ8 or equivalenttype spark plug of the correct heat range. For EMC compliance,use NGK BMR6A Re-start.

Repair or replacefilter and/or fuel line.

Refill with fresh fuel mixture.See page 9.

Consult with an authorizedservicing dealer.Consult with an authorizedservicing dealer.

Engine isknocking.

Overheating condition.

Improper fuel.

Carbon deposits in thecombustion chamber.

See above.

Check fuel octane rating;check for presence of alcohol in the fuel. Refuel as necessary.See page 9.

Consult with an authorizedservicing dealer.

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HT2301

HT2302

IMPORTANT!The terms “left,” “left-hand,” and “LH”;“right,” “right-hand,” and “RH”; “front”and “rear” refer to directions asviewed by the operator during normaloperation of this unit.

Unit Description

Air CleanerCover

Fuel Tank

Protector

Gearcase

ThrottleTrigger

Front Handle

Choke

RearHandle

ON-OFF Switch

WARNING!

Do not make unauthorizedmodifications or alterations tothis unit or to any of its compo-nents or accessories.

Guide Bar

Cutter

Cover

FuelCap

RecoilStarter

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Prior To Using

Assembly and AdjustmentsUsing the accompanying illustrations as aguide, familiarize yourself with your unit and itsvarious components. Understanding your unithelps ensure top performance, long servicelife, and safer operation.

This unit comes fully assembled.

Before using this product, pleasemake sure you have all the compo-nents required for a complete unit:

■ Engine assembly and gearcase/cutter assembly

■ Combination spark plug/13mmwrench

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Troubleshooting GuideENGINE DOES NOT START

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Does the engine crank?

Faulty recoil starter.Fluid in the crankcase.Internal damage.

Consult with an authorized servicing dealer.

NO

Goodcompression?

Loose spark plug.Excess wear on cylinder, piston, rings.

Tighten and re-test.Consult with an authorized servicing dealer.

NO

YES

Does the tankcontain freshfuel of theproper grade?

Fuel may becontaminated or stale.

Refill with clean fresh unleadedgasoline with a pump octane of87 or higher, mixed with ShindaiwaPremium 2-cycle mixing oil at a 50:1gasoline/oil ratio.

NO

YES

Is fuel visibleand moving inthe return linewhen priming?

Check for clogged fuelfilter and/or vent.

Replace fuel filter or vent as required. Restart.NO

Is there spark atthe spark plugwire terminal?

The ignition switchis OFF (“O”).Faulty ignition ground.Faulty ignition unit.

Move switch to ON (“I”)and re-startConsult with an authorized servicing dealer.

NO

YES

YES

Check the spark plug.

If the plug is wet, excessfuel may be in thecylinder.

The plug may be fouledor improperly gapped.

The plug may bedamaged internally oris the wrong size.

Crank the engine with theplug removed, and the ignitionswitch off. Replace theplug, and re-start.

Clean and re-gap the plug to0.024 inch (0.6 mm). Re-start.

Replace the plug with aChampion CJ8 or equivalenttype spark plug of the correct heat range. For EMC compliance,use NGK BMR6A Re-start.

YES

What To Check Possible Cause Remedy

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SpecificationsModel ......................................................................................... HT230-30/HT230-40Engine Model ................................................................................................. SHT230Engine Type ................................................ 2-cycle, horizontal cylinder, air cooledEngine Bore x Stroke ........................................................................ 32mm x 28mmEngine Displacement ........................................................................................ 22.5ccEngine Weight, (dry) .......................................................................... 2.6kg (5.73 lb)Max. Power .................................................................................. 1.1 hp @ 8000 rpmFuel/Oil Ratio ............................ 50:1 with Shindaiwa Premium 2-cycle mixing oilFuel Tank Capacity ............................................................................ 0.7 liter/24 oz.Carburetor .................................................................. Walbro WYJ,Diaphragm typeIgnition .......................................................... Fully electronic,transistor controlledSpark Plug ........................................................................................... Champion CJ8................................ For Electromagnetic Compliance (EMC), use NGK BMR6A

Air Cleaner .......................................................................................... Foam ElementStarting Method ........................................................................................Recoil typeStopping Method ........................................................ Slide switch, grounding typeUnit Dimensions (LxWxH)HT230-30: ................................................................................... 990 x 210 x 210mmHT230-40: ................................................................................. 1330 x 210 x 210mmEngine and Cutter Weight, Less FuelHT230-30: ........................................................................................... 5.5kg (12.23 lb)HT230-40: ........................................................................................... 6.0kg (13.23 lb)Blade LengthHT30-30: ........................................................................................................... 740mmHT230-40: ....................................................................................................... 1080mmBlade Type ................................. Double-blade cutting action: single-edged bladeClutch ................................................ Fully automatic centrifugal clutch, dry-typeGear Type ................................................................................................... Spur gearsGear Lubrication ........................................................ High Quality Lithium GreaseStandard EquipmentRear handle with integral controls, anti-vibe mountings. Front handle withguard. Blade scabbard(cover).Options .............................................................................................. Deflector shield

Specifications subject to change without notice.

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HT2324

(or whenever hard starting orpoor performance are noted):

Remove the spark arrester screen, anduse a wire brush to gently removeexcess carbon deposits.

Muffler

Arrester Screen

ArresterScrew

■ A damaged or otherwise unservice-able screen must be replaced.

■ If carbon accumulations in themuffler or cylinder are severe,return the trimmer to your dealerfor inspection.

WARNING!

Never operate this unit with adamaged or missing muffler orspark arrester! Operating withmissing or damaged exhaustcomponents is a fire hazard, andmay also damage your hearing.

Long Term StorageM

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EEvery 135 Hours

CAUTION!

Gasoline stored in the carburetorfor extended periods can causehard starting, and could also leadto increased service and mainte-nance costs.

Whenever the unit will not be used for30 days or longer, use the followingprocedures to prepare it for storage:■ Clean external parts thoroughly.■ Drain all the fuel from the carbure-

tor and the fuel tank.

IMPORTANT!

All stored fuels should be stabilizedwith a fuel stabilizer such asSTA-BIL�.

To remove the remaining fuel fromthe fuel lines and carburetor and withthe fuel drained from the fuel tank.

1. Prime the primer bulb until nomore fuel is passing through.

2. Start and run the engine until itstops running.

3. Repeat steps 1 and 2 until theengine will no longer start.

■ Remove the spark plug and pourabout 1/4 ounce of 2-cycle mixingoil into the cylinder through thespark plug hole. Slowly pull therecoil starter 2 or 3 times so oil willevenly coat the interior of theengine. Reinstall the spark plug.

■ Before storing the unit, repair orreplace any worn or damaged parts.

■ Remove the air cleaner elementfrom the carburetor and clean itthoroughly with soap and water, letdry and reassemble the element.

■ Store the machine in a clean, dust-free area.

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Filling the Fuel TankMixing Fuel

1. Place the hedge trimmer on theground or on a flat surface.

2. Clear any dirt or other debris fromaround the fuel filler cap.

3. Remove the fuel cap slowly, and fillthe fuel tank with clean, fresh fuelmixture.

4. Replace and firmly tighten the fuelcap.

CAUTION!

Some gasolines contain alcohol asan oxygenate! Oxygenated fuelsmay cause increased operatingtemperatures. Under certainconditions, alcohol-based fuelsmay also reduce the lubricatingqualities of some mixing oils.Never use any fuel containingmore than 10% alcohol by volume!Generic oils and some outboardmotor oils may not be intended foruse in high-performance air cooled2-cycle engines, and should neverbe used in your Shindaiwa engine!

CAUTION!

This engine is designed to operateon a 50:1 mixture consisting ofunleaded gasoline and a premium2-cycle mixing oil only. Use ofNon-approved mixing oils can leadto excessive maintenance costsand/or engine damage.

■ Use only fresh, clean unleadedgasoline with a pump octane ratingof 87 or higher.

■ Mix gasoline with 50:1 ShindaiwaPremium 2-cycle mixing oil or withan equivalent high quality 2-cyclemixing oil.

Example of 50:1 mixing quantites:■ 1 gallon of gasoline to 2.6 oz.

mixing oil.■ 5 litres of gasoline to 100 ml.

mixing oil.

IMPORTANT!Mix only enough fuel for your immedi-ate needs! If fuel must be storedlonger than 30 days and ShindaiwaOne oil with fuel stabilizer is notused, it should first be treated with afuel stabilizer such as StaBil™.

WARNING!

Minimize the risk of fire!

■ STOP the engine beforerefueling.

■ ALWAYS allow the unit to coolbefore refueling!

■ Wipe all spilled fuel and movethe unit at least 10 feet (3meters) from the fueling pointbefore restarting!

■ NEVER start or operate thisunit if there is a fuel leak.

■ NEVER start or operate thisunit if the carburetor, fuel lines,fuel tank and/or fuel tank capare damaged.

■ NEVER smoke or light any firesnear the unit or fuels!

■ NEVER place any flammablematerial near the enginemuffler!

■ NEVER operate the enginewithout the muffler and sparkarrester in place and properlyfunctioning!

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HT2320

3. Remove the air cleaner element,and wash the element in clean,neutral solvent or warm soapywater. Rinse the element thor-oughly, and then squeeze drybefore reassembly.

4. Check the cutters for damage,improper adjustment, or signs ofexcess wear, and adjust or replaceas required.

How to Adjust the Cutter

Shoulder Bolts1. Loosen all cutter locknuts.

2. Tighten each cutter shoulder boltfirmly, and then loosen the shoul-der bolts 1/4 to 1/2 turn.

3. Working from the powerhead, lockeach bolt in place by firmly tighten-ing its locknut while preventing theshoulder bolt from turning.

When shoulder bolt adjustment iscorrect, there should be a gap of 0.25–0.50mm between cutters and the flatwasher beneath each bolt head shouldturn freely.

Air CleanerElement

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Every 100 Hours(or before long-term storage)Remove the gearcase cover, and usesolvent and a soft brush to remove allold grease from the gearcase. To refill,hand-pack the gearcase with approxi-mately 40–50 grams of high qualitylithium-based grease (50–70% ofcapacity). DO NOT OVERFILL!

Air Cleaner Cover

Every 50 hours (Cont.)

HT2321

Locknut

Cutters

ShoulderBolt

Washer (shouldturn freely)

Guide Bar

CAUTION!

Operating the hedge trimmerwith worn or improperly adjustedcutters will reduce cuttingperformance and may alsodamage the unit.

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HT2311

HT2310HT2308

HT2309

Starting Engine

2. Set the throttle trigger to the “fastidle” position by performing thefollowing:

a. Depress and hold the throttle lock,and then squeeze the throttle trigger.

b. Depress and hold the “fast idle”button.

c. While depressing the fast idlebutton, release the throttle lock andthrottle trigger.

IgnitionSwitch

Throttle Trigger

ThrottleLock

Fast IdleButton

Primer Bulb (viewedfrom rear)

WARNING!

KEEP CLEAR OF THE CUT-TERS DURING STARTINGOPERATIONS! THE CUTTERSMAY OSCILLATE WHEN THEENGINE IS STARTED!

■ Place the trimmer on the groundduring all starting operations.

■ Make sure you have a securefooting, and keep a firm grip onthe unit as well.

■ Keep all bystanders and petswell clear of the trimmer duringstarting operations.

ChokeClosed

Ignition ON

1. Slide the ignition switch to the “I”position (engine ON).

3. Press the primer bulb until fuel canbe seen flowing in the transparentreturn tube.

IMPORTANT!

Engine ignition is controlled by a two position switch mounted on the throttlehousing labeled, "I" for ON or START and "O" for OFF or STOP.

IMPORTANT!The primer system only pushes fuelthrough the carburetor. Repeatedlypressing the primer bulb will not floodthe engine with fuel.

4. (Cold Engine Only) Set the chokelever to the CLOSED position.

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Gearcase Lubrication ScheduleEvery 20 Hours

HT2323

HT2322A

VIEWED FROM THE BOTTOM

VIEWED FROM THE BOTTOM

GearcaseGreaseFitting

GearcaseCover

Socket-headCapscrews

DO NOTREMOVE

CONRODS!

CAUTION!

■ Do not remove the conrodsfrom the cutters. Conrodbearings can be lost ordamaged if disturbed.

■ Over-lubricating may causethe gearcase to run slowerthan normal, and may alsocause leakage from excessgrease.

Top off gearcase grease level by usinga lever-type grease gun to force 1–2strokes of high quality lithium-basedgrease through the gearcase greasefitting.

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Every 50 hours(more often in dusty orextreme conditions)

HT2318

1. Remove the cylinder cover, andclean any grass and debris from thecylinder fins.

2. Remove andinspect thespark plug.Replace anydamaged orworn sparkplug with anew ChampionCJ8 or equiva

HT2319

0.024"(0.6mm)

Champion CJ8

CoverClean Debris

lent spark plug of the same heatrange. Adjust spark plug gap to0.024 inch (0.6mm) and reinstall. Ifa torque wrench is available, torquethe plug to 148–165 in.-lbs.

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When the engine starts or fires–

1. Open the choke by moving thechoke lever backward (toward thefuel tank).

2. If the engine did not continue torun, repeat the appropriate crank-ing procedures for a cold or warmengine.

3. When the engine starts, clearexcess fuel from the combustionchamber by accelerating the engineseveral times with the throttlelever.

WARNING!

The cutting attachment willoscillate when the engineaccelerates!

4. Operating the throttle will automati-cally disengage the fast idle setting.

If the engine does not start–■ Repeat the appropriate starting

procedure for a cold or warmengine.

■ If the engine still fails to start, usethe procedures for “Starting aflooded engine,” on the next page.

HT2312

Starting the Engine (continued)

5. Place the unit on the ground. Gripthe engine cover with your lefthand and the starter handle withyour right hand (shown).

6. Pull the starter handle slowlytoward you until you feel the startermechanism engage.

7. Start the trimmer by pulling thestarting handle rapidly outward.

WARNING!

Never start the engine from theoperating position.

HT2325

ChokeOpen

IMPORTANT!If the engine fails to start afterseveral attempts with the choke inthe closed position, the engine maybe flooded with fuel. If flooding issuspected, move the choke lever tothe open position and repeatedly pullthe recoil starter to remove excessfuel and start the engine. If theengine still fails to start, refer to thenext page "Starting a FloodedEngine".

CAUTION!

Do not pull the recoil starter to theend of the rope travel. Pulling therecoil starter to the end of the ropetravel can damage the starter.

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Maintenance and AdjustmentsIMPORTANT!

MAINTENANCE, REPLACEMENTOR REPAIR OF EMISSION CON-TROL DEVICES AND SYSTEMSMAY BE PERFORMED BY ANYREPAIR ESTABLISHMENT ORINDIVIDUAL; HOWEVER, WAR-RANTY REPAIRS MUST BE PER-FORMED BY A DEALER OR SER-VICE CENTER AUTHORIZED BYSHINDAIWA KOGYO CO., LTD. THEUSE OF PARTS THAT ARE NOTEQUIVALENT IN PERFORMANCEAND DURABILITY TO AUTHORIZEDPARTS MAY IMPAIR THE EFFEC-TIVENESS OF THE EMISSIONCONTROL SYSTEM AND MAYHAVE A BEARING ON THE OUT-COME OF A WARRANTY CLAIM.

WARNING!

Accidental start-ups can causesevere injury! Before performingany maintenance on thisequipment, stop the engine anddisconnect the spark plug!

Daily Maintenance/Inspection

1. Remove all grass clippings and dirtfrom the hedge trimmer.

■ Remove any compacted debrisfrom around the fuel tank and/ormuffler.

■ Inspect the engine cooling finsfor clogging, and clean as neces-sary.

■ Clean beneath the cylindercover and around the spark plug.

■ Inspect the air filter element forclogging, clean as necessary.

2. Check for loose, damaged, ormissing components, and repair asnecessary.

3. Lubricate the cutters with oil beforeuse, and after refueling.

4. Check the cutters for damage orimproper adjustment, and adjust orreplace as necessary.

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Clean debris fromtank and muffler

Inspect cooling fins,and clean as

requiredClean around

spark plug

Inspect/clean air filterelement

Check cutters fordamage/correct

adjustment

Lubricatecutters

WARNING!

To reduce fire hazard, keep theengine and muffler free of debris,leaves, or excessive grease.

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Starting a Flooded Engine

WARNING!

Burn danger from hot engine!Allow engine to cool beforeremoving cylinder cover.

1. Disconnect the spark plug lead, andthen use the spark plug wrench toloosen and remove the spark plug.

2. If the spark plug is fouled or issoaked with fuel, clean or replacethe plug as necessary. For sparkplug specifications and gappingprocedure, see page 19.

3. With the spark plug removed, andthe ignition switch off, crank theengine several times to clearexcess fuel from the combustionchamber.

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Cover

Spark Plug

Spark PlugLead

4. Replace the spark plug and tightenit firmly with the spark plugwrench. If a torque wrench isavailable, torque the spark plug to148-165 inch-pounds (170-190 kg/cm).

5. Replace the cylinder cover.

CAUTION!

Incorrect spark plug installationcan damage the engine!

6. Repeat the starting procedures fora warm engine.

7. If the engine still fails to start orfire, refer to the troubleshootingchart at the end of this manual.

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The engine must return to idle speedwhenever the throttle lever is re-leased. Idle speed is adjustable, andmust be set low enough to permit theengine clutch to disengage thecutters.

Adjusting Engine Idle

Idle Speed Adjustment1. Start the engine, and then allow it

to idle 2–3 minutes until warm.

2. If the cutters move when theengine is at idle, reduce idle speedby turning the idle adjustmentscrew counterclockwise.

3. If a tachometer is available, theengine idle speed should be final-adjusted to3,000 (±250) rpm (min-1).

4. Carburetor fuel mixture adjust-ments are preset at the factory andcannot be serviced in the field.

WARNING!

The cutters must NEVER engageat engine idle speeds! If the idlespeed cannot be adjusted by theabove procedure, return thetrimmer to your Shindaiwa dealerfor inspection.

1. Cool the engine by allowing it toidle for 2–3 minutes.

2. Move the ignition switch to the “O”or STOP position.

Operation■ Squeezing the throttle increases

engine speed, causing the clutch toengage and operate the cutters.

■ Releasing the throttle decreasesengine speed, causing the cuttersto slow, and then stop altogether asthe clutch disengages.

■ Use a sweeping motion whencutting, and vary throttle settingsoften.

■ Avoid cutting material larger than1/2 inch in diameter.

Stopping the Engine

Idle AdjustmentScrew

IgnitionSwitch

Ignition OFF

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