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SHINDAIWA AH230S HEDGE TRIMMER USER MANUAL
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OWNER’S MANUAL
SHINDAIWA AH230ARTICULATED HEDGETRIMMER
WARNING!
Minimize the risk of injury toyourself and others! Read thismanual and familiarize yourselfwith the contents. Always weareye and hearing protectionwhen operating this unit.
Part Number 62847-94010Rev. 2/02
PAGE
Attention Statements ........................... 1
Introduction ......................................... 2
Safety Precautions ............................... 2
Operating Precautions ........................ 5
Operating the Trimmer ...................... 7
Specifications ....................................... 8
Product Description ............................ 9
Powerhead Installation ..................... 10
Assembly and Adjustment ................ 11
Adjusting the Cutter Assembly........ 13
Engine Fuel ........................................ 15
Starting the Engine ........................... 16
Stopping the Engine .......................... 18
Adjusting Engine Idle ....................... 19
Maintenance ...................................... 20
Cutter Blade Adjustment .................. 24
Long Term Storage ........................... 25
Troubleshooting Guide .................... 26
Emission System Warranty .............. 30
Contents
1
Attention StatementsThroughout this manual are specialattention statements.
NOTEA statement preceded by the word“NOTE” contains information that ishandy to know and may make yourjob easier.
IMPORTANT!
A statement preceded by the word“IMPORTANT” is one that possessesspecial significance.
CAUTION!A statement preceded by the word“CAUTION” contains informationthat should be acted upon to avoiddamage to the unit.
WARNING!
A statement preceded by thetriangular attention symbol and theword “WARNING” indicates apotentially hazardous situationwhich, if not avoided, COULDresult in death or serious injury.
DANGER!
A statement preceded by thetriangular attention symbol andthe word “DANGER” indicates animminently hazardous situationwhich, if not avoided, WILL resultin death or serious injury!
2
IntroductionThe Shindaiwa AH230 ArticulatiedHedge Trimmer is designed and builtto deliver superior performance andreliability without compromise toquality, comfort, safety or durability.
Shindaiwa’s high-performanceengines represent the leading edge of2-cycle engine technology, deliveringexceptionally high power with remark-ably low displacement and weight. Asan owner/operator, you’ll soondiscover for yourself why Shindaiwa issimply in a class by itself!
Safety Precautions
DANGER!
THE ARTICULATED HEDGETRIMMER IS NOT INSULATEDAGAINST ELECTRICAL SHOCK!Approaching or contactingelectrical lines with the trimmercould cause death or seriousinjury. Keep the trimmer at least33 feet (10 meters) away fromelectrical lines or branches thatcontact electrical lines.
IMPORTANT!
The information contained in theseinstructions describes units available atthe time of publication. While everyattempt has been made to provide thelatest information about yourShindaiwa product, there may be somedifferences between your AH230 andwhat is described here. Shindaiwa Inc.reserves the right to make changes toproducts without prior notice andwithout obligation to make alterationsto units previously manufactured.
The procedures described in thismanual are intended to help you getthe most from your unit as well as toprotect you and others from harm.These procedures are guidelines forsafe operation under most conditions,and are not intended to replace anysafety rules and/or laws that may bein force in your area.
If you have questions regardingyour power tool, or if you do notunderstand something in this manual,your Shindaiwa dealer will be glad toassist you.
You may also contact Shindaiwa,Inc. at the address printed on the backof this Manual.
An articulated hedge trimmer has thepotential to do serious damage ifmisused, abused or mishandled. Toreduce the risk of injury, you mustmaintain control at all times, andobserve all safety precautions duringoperation. Never permit a personwithout training or instruction tooperate this trimmer!
WARNING!
The engine exhaust from thisproduct contains chemicals knownto the State of California to causecancer, birth defects or otherreproductive harm.
SA
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3
Safety PrecautionsS
AF
ET
Y
50ft15M
Electrical Hazard
Keep bystanders at least50 feet (15 meters) awayfrom the operatingtrimmer to reduce therisk of being struck byfalling objects or throwndebris.
Danger Falling Debris
Read and follow thismanual, make sureanyone using the trimmerdoes likewise. Failure todo so could result inserious personal injury ormachine failure. Keepthis manual for futurereference
Always wear a hard hat toreduce the risk of headinjuries during operationof this machine. Inaddition, always wear eyeand hearing protection.Shindaiwa recommendswearing a face shield asadditional face and eyeprotection. Wear non-slipheavy-duty gloves toimprove your grip on thetrimmer handle. Wearsturdy footwear withnonslip soles to providegood footing. Steel-toedsafety boots are recom-mended. Wear snug-fitting clothes that alsopermit freedom ofmovement.
Never operate this tool orany other power equip-ment if you are tired, ill,or under the influence ofalcohol, drugs, or anysubstance that couldaffect your ability orjudgement.
Safety Labels
Shaft Safety Label
Throttle Interlock
IgnitionSwitch
High Voltage Label
Cutter BladeScabbard
HandGuard
4
IMPORTANT!
Safety and Operation InformationLabels: Make sure all informationlabels are undamaged and readable.Immediately replace damaged ormissing information labels. New labelsare available from your local autho-rized Shindaiwa dealer.
Figure 1
SA
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5
Operating Precautions
■ Always make sure the cutterattachment is properlyinstalled and firmly tightenedbefore operation.
■ Never use a cracked orwarped cutter or cutter bar:replace it with a serviceableone and make sure it fitsproperly.
■ Before starting the engine,make sure the cutter is notcontacting anything.
■ Always stop the engineimmediately and check fordamage if you strike a foreignobject or if the unit becomestangled. Do not operate withbroken or damaged equipment.
■ When cutting a branch that isunder tension, be alert forspring-back so that you willnot be struck by the movingbranch.
■ Stop the unit immediately if itsuddenly begins to vibrate orshake. Inspect for broken,missing or improperly installedparts or attachments.
■ Do not operate the articulatedhedge trimmer with the mufflerremoved.
■ Make sure there is always goodventilation when operating thearticulated hedge trimmer.Fumes from engine exhaust cancause serious injury or death.Never run the engine indoors!
■ Make sure there are no missingor loose fasteners, and that thestop switch and throttle controlsare working properly.
■ If a cutter should bind fast in acut, shut off the engine immedi-ately. Push the branch or tree toease the bind and free thecutter.
■ Make sure the cutters arecorrectly adjusted beforeoperating the articulated hedgetrimmer (see page 24 for cutteradjustment procedures). Neverattempt cutter adjustment withthe engine running!
WARNING!Minimize the Risk of Fire
■ NEVER smoke or light firesnear the unit.
■ ALWAYS stop the engine andallow it to cool before refuel-ing. Avoid overfilling and wipeoff any fuel that mayhave spilled.
■ ALWAYS move the unit to aplace well away from a fuelstorage area or other readilyflammable materials beforestarting the engine.
■ ALWAYS inspect the unit forfuel leaks before each use.During each refill, check that nofuel leaks from around the fuelcap and/or fuel tank. If fuel leaksare evident, stop using the unitimmediately. Fuel leaks must berepaired before using the unit.
■ NEVER place flammable materialclose to the engine muffler.
■ NEVER run the engine withoutthe spark arrester screen in place.
WARNING!Use Good Judgement
SA
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6
CAUTION!■ Always maintain the articu-
lated hedge trimmer accordingto this owner’s manual andfollow the recommendedscheduled maintenance.
■ Never modify or disable any ofthe hedge trimmer’s safetydevices.
■ Always use genuineShindaiwa parts and accesso-ries when repairing or main-taining this unit.
■ Do not make unauthorizedmodifications to the articulatedhedge trimmer.
■ Never allow the engine to runat high RPM without a load.Doing so could damage theengine.
■ When transporting the hedgetrimmer in a vehicle, tie itdown securely to prevent fuelspillage or damage to the unit.
■ Always clear your work areaof trash or hidden debris tohelp ensure good footing.
■ Keep the cutters sharp andproperly adjusted.
■ Keep the articulated hedgetrimmer as clean as possible.Keep it free of loose vegeta-tion, mud, etc.
Figure 2
WARNING!
■ Never transport the articulatedhedge trimmer nor set it downwith the engine running. Anengine that’s running could beaccidently accelerated causingthe blades to oscillate.
■ Make sure the cover is inplace when transporting thearticulated hedge trimmer.
■ When carrying the articulatedhedge trimmer by hand, thecutter attachment should bepointing backward with thecutter blade in the retracted ortransporting position (seepage 13 for articulatingadjustment procedures).See Figure 2.
SA
FE
TY
Always operate withboth hands firmlygripping the unit.
Wear non-slip heavy-dutygloves to improve your gripon the trimmer handle.Wear snug-fitting clothesthat also permit freedom ofmovement. NEVER wearshorts!
Always wear a hard hat to reducethe risk of head injuries duringoperation of this unit.
Always wear eye and hearingprotection. Shindaiwa recommendswearing a face shield as additionalface and eye protection.
Wear sturdy footwear withnonslip soles to provide goodfooting. Steel-toed safety bootsare recommended.
Keep a proper footing and do notoverreach—maintain your balanceat all times during operation.
Operating the Articulated Hedge Trimmer
Keep bystanders at least 50 feet(15 meters) away from theoperating trimmer to reduce therisk of being struck by fallingobjects or thrown debris.
Secure long hairso it is aboveshoulder level.
7
Figure 3
SA
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AH230 Specifications
Dry Weight ................. 5.95 kg/13.1 lb.
Length (storage or transportingposition) ............... 2360mm/93.0 in.
Engine Type ............ 2-cycle, air-cooled,vertical-cylinder
Bore x Stroke .. 32 x 28 mm/1.3 x 1.1"
Displacement ......... 22.5 cc/1.4 cu. in.
Maximum Output .......... 0.8kW/1.1 hp@ 7500 rpm (min-1)
Fuel/oil ratio ........ 50:1 with ShindaiwaPremium 2-cycle Mixing Oil.
Fuel Tank Capacity .... 554 ml/18.7 oz.
Carburetor Type ...... Walbro WYL-26A
Ignition .............. One-piece, electronic,transistor-controlled
Spark PlugEPA version ............. Champion CJ8EMC version .............. NGK BMR6A
Air Filter .......................... Flocked type,quick-remove/install
Starting Method .......................... Recoil Specifications are subject to change without notice.
Cooling System ..................... Forced air
Stopping Method ............... Slide switch
Transmission Type .............. Automatic,centrifugal clutch with bevel gear
Blade Length ............. 567 mm/22.3 in.
Cutter Drive ........................... Spur gear
Gear Lubricant .. Lithium-based grease
Standard Equipment ..............................Tool kit containing a spark plugwrench, 4mm hex wrench, and8 x 10mm spanner
Optional Equipment ................ Harnessand bracket
EPA EmissionCompliance Period* ........... Category A
* The EPA emission compliance referred toon the emission compliance label located onthe engine, indicates the number of operatinghours for which the engine has been shownto meet Federal emission requirements.Category C = 50 hours (Moderate), B = 125hours (Intermediate) and A = 300 hours(Extended).
8
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Product Description
Fuel Tank
Air FilterAssembly
RecoilStarter
HandleGrip
Gearcase
SparkArrester
Stop Switch
OuterTube
Hedge TrimmerCutter Assembly
Powerhead Assembly
Cutter Bar andCutter Blades
Hedge TrimmerCutter Assembly
Fuel Tank Guard
Cutter AssemblyAdjustment Lever
Cutter BladeScabbard
Spark Plug
LatchRelease
Latch Lock
HandGuard
9
Figure 4
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.
Prior To AssemblyUsing Figure 4 as a guide, familiarizeyourself with the Shindaiwa AH230articulated hedge trimmer and itsvarious components. Understandingyour unit helps ensure top perfor-mance, longer service life, and saferoperation.
Before assembling, make sure youhave all the components required for acomplete unit:■ Engine assembly■ Outer tube/cutter assembly■ Kit with this manual and tool kit for
routine maintenance.■ Cutter blade scabbard
Carefully inspect all components fordamage.
WARNING!
Do not make unauthorizedmodifications or alterations to yourarticulated hedge trimmer or itscomponents.
DE
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23005
10
Powerhead Installation
Grip
SparkPlug
IgnitionSwitch
MainShaft
TubeClamp
Outer Tube
Clamp Screw
Figure 5
Throttle Lever
AH231_09
1. Place the powerhead on a clean, flatsurface, spark plug facing up.
2. Use the 4mm hex wrench to loosen
Tube Clamp
HexWrench
Shim Washer
Connect the Outer Tube to the Powerhead.
the tube clamp screw. Verify thatthe D-shaped shim washer ispositioned as shown in Figure 6.
3. Add some moly-type EP grease tosplines at the end of the main shaft.
4. Slide the outer tube into the tubeclamp until the tube bottoms. Ifinstallation is difficult, rotate theouter tube or main shaft slightlyuntil you feel the mainshaft splinesengage with the powerhead.See Figure 5.
5. Position the outer tube so that theignition switch is facing up and thethrottle lever is facing down.See Figure 5.
6. Slide the outer tube into thepowerhead until the throttle gripjust contacts the tube clamp.
7. Tighten the clamp screw firmly.
Figure 6
CAUTION!Do not force the shaft tube into thepowerhead! Excessive force candamage the shaft tube andmainshaft.
CAUTION!Do not remove the D-shaped shimwasher! The shim washer pre-vents damage from overtighteningthe tube clamp screw.
AS
SE
MB
LY
Connecting the Throttle CableRemove The Cylinder Cover1. Remove the
spark plug cap,then loosenthe cylindercover knob(about a dozenturns needed).See Figure 7.
2. Lift the cornerof the cylindercover justbelow themuffler asshown inFigure 8, andlift off thecylinder cover.
ThrottleCable End
11
AH231_11
Install the black wire between thetwo cable adjusters.
CableAdjuster
IgnitionGround
Lead
Figure 9
Figure 11
AH231_13
Black Wire
Black WireConnector
Spark PlugWire
Figure 10
Figure 7
Figure 8
Connect TheThrottle Cable.1. Loop the ribbed cable assembly to
the top left side of the engine.Notice that the black ground wire(with a ring fitting on the end) islocated between the two cableadjuster nuts as shown in Figure 9.
2. Connect the S-shaped end of thethrottle cable to the throttle leveron top of the carburetor as shownin Figure 10.
3. Turn the cable adjuster nutssufficiently for the throttle cable tofit in the notch on the fan cover.Make sure the ignition ground leadis located on the rearward side ofthe notch. Then, connect the malefitting of the black ignition wire intothe female fitting of the red wireattached to the engine. SeeFigure 11.
AS
SE
MB
LY
Adjusting the Throttle Cable
Figure 13
1/4-inch ThrottleFreeplay
2. Adjust the throttle cable nuts untilyou achieve a free play on thethrottle trigger of about 1/4 inch.See Figure 13.
1. Loosen the two 10mm throttlecable nuts at the fan cover asshown in Figure 12.
Figure 12
Idle ThrottlePosition
FullThrottlePosition
Stop onthrottlebody
Figure 14
3. When 1/4-inch free play isachieved, tighten the two 10mmthrottle cable nuts. When thethrottle cable is correctly adjusted,and the throttle trigger is fullydepressed (full throttle), thethrottle will contact the stop on thethrottle body. See Figure 14.
4. Replace the cylinder cover.5. Replace the spark plug cap.
12
OP
ER
AT
ION
IMPORTANT!
Make sure the stop switch wires donot interfere with throttle functions.Reposition wires if necessary.
Cable Adjuster Nuts
NOTE:Put some Never-Seez™ or equiva-lent on the cylinder cover knob foreasier removal.
13
Adjusting the Hedge Trimmer Cutter Assembly
Position the hedge trimmer on a flat,level surface with the engine restingon the fuel tank guard. Make sure thescabbard is in place on the blade.1. With your right hand, grasp the
handle, located immediatelybehind the hand guard. With yourleft hand, grip the adjustment leveron the cutter assembly.See Figure 15.
Figure 15
Figure 16
Figure 17
AdjustmentLever
Latch Release
Latch Lock
AdjustmentLever
IMPORTANT!
The latch lock provides an interlock tohelp prevent inadvertent depression ofthe latch release.
WARNING!
■ The cutter blades are verysharp. Do not grasp theblades with your hands. Donot brush the blades againstyour body.
■ Never run the engine noroperate the articulated hedgetrimmer when the cutterassembly is in the storage/transport position.
IMPORTANT!
Always use gloves when working nearthe cutter assembly.
2. With the index finger of your lefthand, press the latch release. Withyour left thumb, press the latchlock. See Figure 16.
3. While holding the latch lock down,pivot the cutter assembly using theadjustment lever until it is straightwith the outer tube (pivot 180°).See Figure 17.
4. Release the latch lock and the latchrelease. Make sure the latch lockand the latch release returnsecurely to a locking position.
5. Remove the scabbard from thecutter blade. The engine now maybe started (refer to page 16 forprocedures).
OP
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14
Adjusting the Hedge TrimmerCutter Assembly for DesiredCutting Angles
Figure 18
Figure 19
Various bladepositionspossible
Gearcase rotated to thestorage/transportation position
270°
120°
Adjusting the Cutter Assemblyfor Storage or Transportation
WARNING!
Do not touch the cutter bladeswhen the engine is running. Theblades can oscillate even if theengine is idling.
The cutter assemblycan be adjusted to 10different positionsranging from 120° to270° from the outertube as shown inFigure 18. Refer to thesteps on the previouspage for adjustmentprocedures. Alwaysmake sure the locklatch is securelylocked after eachadjustment.
WARNING!
Never run the engine whenadjusting the cutter assembly tothe storage position.
1. With the engine off, install thescabbard onto the blade.
2. Using the procedures described onthe previous page, rotate the cutterassembly so it is parallel to thetube. Make sure the latch lock andthe latch release return securely toa locking position. See Figure 19.
3. Make sure the scabbard is in placeon the cutters before storing ortransporting.
OP
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ION
15
Filling the Fuel Tank
1. Place the Articulated HedgeTrimmer on a flat, level surface.
2. Clear any dirt or other debris fromaround the fuel filler cap.
3. Remove the fuel cap, and fill thefuel tank with clean, fresh fuel.
4. Reinstall the fuel filter cap andtighten firmly.
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 this unitif there is a fuel leak!
■ Never start or operate this unitif the carburetor, fuel lines,fuel tank and/or fuel tank capare damaged.
■ Never smoke or light any firesnear the unit or fuel!
■ Never place any flammablematerial near the enginemuffler!
■ Never operate the enginewithout the muffler and sparkarrester in place and properlyfunctioning!
Mixing Fuel
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.
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.
■ 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.
Examples of 50:1 mixing quantities■ 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 SindaiwaOne oil with fuel stabilizer is notused, it should first be treated with afuel stabilizer such as StaBil™.
OP
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16
Starting A Cold Engine – Restarting After Refueling
Figure 20
IMPORTANT!
Engine ignition is controlled by a two-position START-STOP switch mountedon the throttle body, typically labelled“I” for START and “O” for STOP.
AH231_22 PrimerBulb
Return Tube
Figure 21
ChokeLever
Closed
3. Choke the engine by moving thechoke lever up to the “closed”position. See Figure 22.
Before starting the engine, make surethe cutter assembly is in the cuttingposition (extended). Refer to page 13for adjustment procedures. Neverstart the engine with the cutterassembly in the storage/transporta-tion position.
Figure 22
AH231_23
2. Prime theengine bydepressingthe carbure-tor primerbulb four orfive times.See Figure21. Youshould beable to seefuel insidethe bulb.
Control Positions (warm engine)1. Slide the ignition switch to the “I”
(START) position.2. Move the choke lever down to the
“open” position.
1. Slide the ignition switch to the “I”(START) position. See Figure 20.
OP
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17
AH231_25
Cranking The Engine
Before starting the engine, make surethe cutter assembly is in the cuttingposition (extended). Refer to page 13for adjustment procedures. Neverstart the engine with the cutterassembly in the storage/transporta-tion position.1. Place the unit firmly on the ground,
making sure it is stable and that thecutter attachment is free and clearof any bystanders or objects. Gripthe outer tube with your left handand grasp the starter rope handlewith your right hand.See Figure 23.
ChokeLever Open
Figure 23
WARNING!
When the engine starts or isrunning–even at idle–the hedgetrimmer cutter blade may move(oscillate). Keep your hands andyour body away from the cutterassembly while starting the engine!
Figure 24
CAUTION!The recoil starter can be damagedby abuse.
■ Always engage the starterbefore attempting to crank theengine.
■ Never pull the starter cord toits full length.
■ Always rewind the starter cordslowly.
When The Engine Starts Or FiresOpen the choke by moving the chokelever down. See Figure 24.
WARNING!
When starting the engine, makesure the cutter attachment is wellclear of bystanders, pets orobjects. The cutter may oscillateduring start-up.
CAUTION!Never operate the trimmer unlessa cutter attachment is installed.
2. Pull the starter handle slowly untilyou feel the starter engage.
3. Pull the starter handle quickly tostart the engine.
OP
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18
Starting A Flooded Engine1. Disconnect the spark plug lead and
use the spark plug wrench toremove the spark plug (turncounter clockwise to remove). SeeFigure 25.
2. Slide the ignition switch to the “O”(STOP) position.
Figure 25
Figure 26
AH231_26
1. Cool the engine by allowing itto idle for two or three minutes.
2. Slide the ignition switch to the “O”or STOP position. See Figure 26.
Stopping the Engine
WARNING!
The cutter attachment can con-tinue moving after the engine isstopped!
CAUTION!Incorrect spark plug installationcan result in serious enginedamage.
If the spark plug is fouled or soakedwith fuel, clean the plug as necessary(for spark plug gapping specificationssee page 21).
3. Open the choke (Figure 24) andfully depress the throttle lever withyour left hand, then pull the starterhandle rapidly with your right handto clear excess fuel from thecombustion chamber.
4. Reinstall the spark plug and tightenit firmly. If a torque wrench isavailable, torque the spark plug to148–165 in.-lb (170–190 kg/cm).
5. Repeat the starting procedure for awarm engine.
6. If the engine still fails to start, referto the troubleshooting section nearthe end of this manual.
If The Engine Fails To StartRepeat the appropriate crankingprocedure (warm or cold engine). Ifthe engine fails to start after repeatedattempts, the engine is likely flooded.
If the engine does not continue to run,repeat the appropriate crankingprocedure (warm or cold engine).
When the engine starts, clearexcess fuel from the combustionchamber by revving the engineseveral times with the throttle trigger.
WARNING!
The cutter attachment will engageand oscillate as the engine startsand accelerates.
OP
ER
AT
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19
WARNING!
The cutter attachment must neveroscillate at engine idle speed. Ifthe idle speed cannot be adjustedby the procedures described here,return the trimmer to yourShindaiwa dealer for inspection.
Adjusting The Carburetor
Idle AdjustingScrew
Figure 27
NOTEThis model is equipped with an EPAapproved carburetor with no mixtureadjustment.
IMPORTANT!
Use a tachometer, if one is available, toset engine idle. Standard idle speed is:2,750 (±250) rpm (min-1).
The engine must return to idle speedwhenever the throttle trigger is released.Idle speed is adjustable and must be setlow enough to permit the engine clutchto disengage the cutter attachment whenthrottle trigger is released.Check and Adjust Idle Speed1. Start the engine and allow it to idle two
or three minutes, or until it warms up.
2. If the cutter attachment rotates atengine idle, reduce idle speed byturning the idle adjusting screwcounter-clockwise as necessary.See Figure 27.
3. If the engine is stalling and won’tidle, increase idle speed by turningthe idle adjustment screw clockwise.
OP
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MufflerGeneral Maintenance
IMPORTANT!
MAINTENANCE, REPLACEMENT,OR REPAIR OF EMISSION CON-TROL DEVICES AND SYSTEM MAYBE PERFORMED BY ANY REPAIRESTABLISHMENT OR INDIVIDUAL.HOWEVER, WARRANTY REPAIRSMUST BE PERFORMED BY ADEALER OR SERVICE CENTERAUTHORIZED BY SHINDAIWAKOGYO, LTD. AND USE OF PARTSTHAT ARE NOT EQUIVALENT INPERFORMANCE AND DURABILITYTO AUTHORIZED PARTS MAYIMPAIR THE EFFECTIVENESS OFTHE EMISSION CONTROL SYSTEMAND MAY HAVE A BEARING ONTHE OUTCOME OF THE WAR-RANTY CLAIM.
WARNING!
Before performing any mainte-nance, repair, or cleaning work onthe unit, make sure the engine andcutting attachment are completelystopped. Disconnect the spark plugwire before performing service ormaintenance work.
WARNING!
Non-standard parts may not operateproperly with your unit and may causedamage and lead to personal injury.
IMPORTANT!
Using non-standard replacement partscould invalidate your Shindaiwawarranty.
WARNING!
Operating the engine without amuffler or with a muffler that isdamaged or improperly installedcan increase engine noise suffi-ciently to cause hearing loss.
This unit must never be operated with afaulty or missing spark arrestor ormuffler. Make sure the muffler is wellsecured and in good condition. A wornor damaged muffler is a fire hazard andmay also cause hearing loss.
Spark PlugKeep the spark plug and wire connec-tions tight and clean.
20
MA
INT
EN
AN
CE
Prior to each work day, perform thefollowing:
■ Remove all dirt and debris from theengine, check the cooling fins andair cleaner for clogging, and cleanas necessary. See Figure 28.
Daily Maintenance
■ Carefully remove any accumulationsof dirt or debris from the muffler andfuel tank. Check cooling air intakearea at base of crankcase. Removeall debris. Dirt build-up in these areascan lead to engine overheating, fire,or premature wear.
Figure 28
Keep coolingfins clean
Keep airpassages
clean
WARNING!
Always wear gloves when workingaround the cutter assembly.
■ Clean any debris or dirt from thehedge trimmer cutter blades.Lubricate the blades before use andafter refueling. Check the cutters fordamage or incorrect adjustment.
■ Check for loose or missing screws orcomponents. Make sure the cutterattachment is securely fastened.
■ Check the entire unit for leakingfuel or grease.
■ Make sure nuts, bolts, and screws(except carburetor adjustingscrews) are tight.
21
MA
INT
EN
AN
CE
AH231_30
DT2322
10-Hour MaintenanceCAUTION!Do not operate the unit if the aircleaner or element is damaged, orif the element is wet.
Figure 29
10/15-Hour MaintenanceCAUTION!Before removing the spark plug,clean the area around the plug toprevent dirt and debris from gettinginto the engine’s internal parts.
Figure 30
Clean the sparkplug and checkthe gap at the
electrode.
0.024 inch(0.6 mm)
Figure 31
GearboxGreaseFitting
Remove andclean theelement
UnscrewFastener
Every 10 hours of operation,(more frequently in dusty ordirty conditions):Remove the air cleaner element fromthe air cleaner housing and clean itthoroughly with soap and water. Let itdry before reinstalling the element.See Figure 29.
CAUTION!Overlubricating can cause thegearbox to operate sluggishly andcan cause grease to leak out.
Every 10 to 15 hoursof operation:■ Remove and clean the spark plug.
See Figure 30. Adjust the sparkplug electrode gap to 0.024-inch(0.6 mm). If the spark plug must bereplaced, use only a Champion CJ8or equivalent spark plug of thecorrect heat range. (For electromagnetic compliance (EMC) use aNGK BMR6A resistor plug.)See Figure 30.
■ Lubricate the cutter assemblygearbox by pumping one or twostrokes of lithium-base grease intothe grease fitting using a lever-typegrease gun. See Figure 31.
22
MA
INT
EN
AN
CE
23006
50-Hour MaintenanceEvery 50 hours of operation(more frequently in dusty ordirty conditions):■ Remove and clean the cylinder
cover and clean dirt and debrisfrom the cylinder cooling fins.
■ Lubricate the gearcase. Toperform this operation, first removethe gearcase from the outer tube asfollows (Figure 32):
Servicing the fuel filter
Filter Element
HookedWire
Figure 34
Figure 32
Outer Tube
Gearcase
a. Loosen the gearcase clamp bolt.b. Remove the index bolt from the
gearcase.c. Slide the gearcase out of the tube.
Using a grease gun, pump lithium-base grease (about 10 grams) intothe grease fitting on the gearcaseuntil you see old grease beingpurged from the gearcase (Figure33). Purged grease will be visible inthe outer tube cavity. Clean upexcess grease, then reassemble thegearcase onto the outer tube. Makesure the index bolt fits into the holeon the outer tube. Securely tightenboth bolts.
GearcaseClamp Bolt
Index Bolt
Figure 33
GearcaseGreaseFitting
CAUTION!Make sure you do not pierce thefuel line with the end of thehooked wire. The line is delicateand can be damaged easily.
■ Use a hooked wire to extract thefuel filter from inside the fuel tank(Figure 34). Inspect the fuel filterelement. If it shows signs ofcontamination from debris, replaceit with a genuine Shindaiwa replace-ment fuel filter element. Beforereinstalling the filter, inspect thefuel line. If you discover damage ordeterioration, the unit should beremoved from service until it can beinspected by a Shindaiwa-trainedservice technician.
CAUTION!Do not remove the D-shaped shimwasher from the gearcase clamp!The shim washer preventsdamage from overtightening thetube clamp screw.
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27028
Hard starting or a gradual loss ofperformance can be caused by carbondeposits lodged in the muffler’s sparkarrester screen. See Figure 35.
In such cases, performance canusually be restored by removing thearrester screen and giving it a thor-ough cleaning with a stiff bristlebrush.
If carbon deposits are severe or ifno performance improvement isnoted, your unit should be returned toyour Shindaiwa dealer for inspection.
Spark ArresterScreen Muffler
Muffler Maintenance
Figure 35
Cutter Blade Adjustment
WARNING!
Never operate the unit with adamaged or missing muffler orspark arrester! Operating withmissing or damaged exhaustcomponents is a fire hazard andcould also damage your hearing.
Cutter performance of your unitdepends in great measure on cutterblade clearance. Properly adjustedblades will oscillate freely yet helpprevent binding of cut materialbetween blades. Adjust blades asfollows (Figure 36):1. Loosen all blade locknuts at least
one full turn.2. Tighten each blade shoulder bolt
firmly, and then loosen the shoul-der bolts 1/4 to 1/2 turn.
3. Working from the gearcase end,lock each bolt in place by firmlytightening its locknut whilepreventing the shoulder bolt fromturning.
When shoulder bolt adjustment iscorrect, there should be a gap of0.25–0.50 mm between the cutterblades and the flat washers, and theflat washer beneath each bolt headshould turn freely.
AH231_38
Guide BarLocknut
Cutter BladesShoulder
Bolt
Washer(should turn
freely)Figure 36
CAUTION!Operating the trimmer with worn orimproperly adjusted cutters willreduce cutter performance andmay also damage your unit.
WARNING!
The cutter blades are very sharp!Always wear gloves when workingaround the cutter assembly.
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Long Term StorageWhenever the unit will not be used for30 days or longer, use the followingprocedures to prepare it for storage:■ Clean external parts thoroughly
and apply a light coating of oil to allmetal surfaces.
■ Drain all the fuel from the fuel tank.
To remove the remaining fuel fromthe fuel lines and carburetor and withthe fuel drained from the fuel tank.1. Prime the primer bulb until no
more fuel is passing through.2. Start and run the engine until stops
running.3. Repeat steps 1 and 2 until the
engine 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 unit in a clean,dust-free area.
CAUTION!Gasoline stored in the carburetorfor extended periods can causehard starting, and could also leadto increased service and mainte-nance costs.
IMPORTANT!
All stored fuels should be stabilizedwith a fuel stabilizer such asSTA-BIL™ , if oil with fuelstabilizer is not used.
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Troubleshooting GuideENGINE DOES NOT START
Does the engine crank?
Faulty recoil starter.Fluid in the crankcase.Internal damage.
Consult with an authorizedservicing dealer.
Consult with an authorized servicing dealer.
Consult with an authorizedservicing dealer.
NO
Goodcompression?
Loose spark plug.Excess wear on cylinder, piston, rings.
Tighten and re-test.NO
YES
Does the tankcontain freshfuel of theproper grade?
Refill with clean fresh unleaded gasoline with a pump octane of 87 or higher, mixed with Shindaiwa Premium 2-cycle mixing oil at a 50:1 gasoline/oil ratio.
Fuel incorrect, stale, orcontaminated; mixtureincorrect.
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 switch is in “O” (OFF) position.Shorted ignition ground.Faulty ignition unit.
Move switch to “I” (ON)position and re-start.NO
YES
YES
Check the spark plug.
If the plug is wet, excessfuel may be in thecylinder.
The plug is fouledor improperly gapped.
The plug is damagedinternally or of thewrong size.
Crank the engine with theplug removed, replace the plug, and re-start.
Clean and re-gap the plug to 0.024 inch (0.6 mm). Re-start.
Replace the plug with aChampion CJ8 or equivalent type 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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Troubleshooting Guide (continued)LOW POWER OUTPUT
Is the engineoverheating?
Operator is overworkingthe machine.
Carburetor mixture istoo lean.
Improper fuel 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 unleaded gasoline with a pump octane of 87 or higher, mixed with Shindaiwa Premium 2-cycle mixing 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 cleaner element.
Loose or damagedspark plug.
Air leakage or cloggedfuel line.
Water in the fuel.
Piston seizure.
Faulty carburetor and/ or diaphragm.
Clean or replace the air filter.
Tighten or replace the plug with a Champion CJ8 or equivalent type spark plug of the correct heat range. For EMC compliance use NGK BMR6A. Re-start.
Repair or replace fuelfilter and/or fuel line.
Refill with fresh fuel/oilmixture. See page 15.
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 ofalcohol in the fuel. Refuel as necessary. See page 15.
Consult with an authorizedservicing dealer.
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Troubleshooting Guide (continued)ADDITIONAL PROBLEMS
Pooracceleration.
Clogged air filter.
Clogged fuel filter.
Lean fuel/airmixture.
Idle speed set too low.
Clean or replace the air filter.
Replace the fuel filter.
Consult with an authorizedservicing dealer.
Adjust: 2,750 (�250) rpm (min-1)
Symptom Possible Cause Remedy
Engine stopsabruptly.
Switch turned off.
Fuel tank empty.
Clogged fuel strainer.
Water in the fuel.
Shorted spark plug orloose terminal.
Ignition failure.
Piston seizure.
Reset the switch and re-start.
Refuel.
Replace strainer.
Drain; replace with clean fuel.See page 22.
Clean or replace spark plug with a Champion CJ8 or equivalent type spark plug of the correct heat range. For EMC compliance use NGK BMR6A. Tightn the terminal.
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 spark plug with a Champion CJ8 or equivalent spark plug of the correct heat range. For EMC compliance use NGK BMR6A.
Idle engine until cool.
Cutting attachment moves at engine idle.
Engine idle too high.
Broken clutch spring orworn clutch spring boss.
Loose attachment holder.
Set idle: 2,750 (�250) rpm (min-1)
Replace spring/shoes asrequired, check idle speed.
Inspect and re-tighten holders securely.
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Troubleshooting Guide (continued)ADDITIONAL PROBLEMS
Symptom Possible Cause Remedy
Excessive vibration.
Warped or damaged tool.
Loose coupler.
Bent main shaft/worn ordamaged bushings.
Inspect and repairtool as required.
Tighten coupler securely.
Inspect and replace as necessary.
Cutting attachmentwill not move.
Shaft not installedin powerhead, coupleror gearcase.
Broken shaft.
Damaged gearcase.
Inspect and reinstallas required.
Consult with an authorized servicing dealer.
Consult with an authorized servicing dealer.
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Your Warranty Rights andObligationsThe California Air Resources Board, theU.S. Environmental Protection Agencyand Shindaiwa Kogyo Co., Ltd. arepleased to explain the emission controlsystem warranty on your new small off-road (non-road) engine.
In California, new small off-roadengines must be designed, built, andequipped to meet the State’s stringentanti-smog standards. In other states,new 1997 and later non-road enginesmust meet the Federal EPA’s strin-gent anti-smog standards. ShindaiwaKogyo Co., Ltd. must warrant theemission control system on your smalloff-road engine for the periods of timelisted below, provided there has beenno abuse, neglect, or impropermaintenance of your small off-roadengine.
Your engine emission controlsystem includes parts such as thecarburetor, the ignition system and, ifequipped, the catalytic converter.These components are specificallylisted below.
Where a warrantable conditionexists, Shindaiwa Kogyo Co., Ltd. willrepair your small off-road engine at nocost to you including diagnosis, parts,and labor.
Manufacturer’s WarrantyCoverage
When sold within the U.S., thisengine’s emission control system iswarranted for a period of two (2) yearsfrom the date this product is firstdelivered to the original retail pur-chaser.
During the warranty period,Shindaiwa Kogyo Co., Ltd. will, attheir option, repair or replace anydefective emission-related componenton this engine. During the originalWarranty Period, these WarrantyRights are automatically transferableto subsequent owners of this product.
What is Covered by thisWarranty1. Carburetor Internal Components
■ Throttle Valve, Needle, Jet,Metering Diaphragm
2. Ignition System Components■ Ignition Coil■ Flywheel Rotor
3. Catalytic Converter (if originallyequipped)
The emission control system foryour particular Shindaiwa engine mayalso include certain related hoses andconnectors.
Emission System Warranty Statement
30
Owners WarrantyResponsibilities
As the small off-road engine owner,you are responsible for the perfor-mance of the required maintenancelisted in this owners manual.Shindaiwa Kogyo Co., Ltd. recom-mends that you retain all receiptscovering maintenance on your smalloff-road engine, but Shindaiwa KogyoCo., Ltd. cannot deny warranty solelyfor the lack of receipts or for yourfailure to ensure the performance ofall scheduled maintenance.
As the small off-road engine owner,you should be aware, however, thatShindaiwa Kogyo Co., Ltd. may denyyou warranty coverage if your smalloff-road engine or a part has failed dueto abuse, neglect, improper mainte-nance, or unapproved modifications.
You are responsible for presentingyour small off-road engine to anauthorized Shindaiwa Dealer as soonas a problem exists. The warrantyrepairs should be completed in areasonable amount of time, not toexceed 30 days.
If you have any questions regardingyour warranty rights and responsibili-ties, you should contact a Shindaiwacustomer service representative at(503) 692-3070 or your local ShindaiwaDealer.
Consequential DamagesIn the event that other component
parts of this product are damaged bythe failure of a warranted part,Shindaiwa Kogyo Co., Ltd. will repairor replace such component parts at nocharge to you.
What is Not Covered■ Failures caused by abuse, neglect,
or improper maintenanceprocedures.
■ Failures caused by the use ofmodified or non-approved parts orattachments.
This Warranty is Administered by:
Shindaiwa Inc.11975 S.W. Herman Rd.Tualatin, OR 97062(503) 692-3070
31
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Shindaiwa Inc.P.O. Box 2810Tualatin, 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
�2002 Shindaiwa, Inc.Part Number 62847-94010Printed in JapanRev. 2/02
Specifications subject to change without notice.
