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SHINDAIWA OWNER’S / OPERATOR’S MANUAL CT2510 CULTIVATOR WARNING ! Always wear eye protection when operating this machine . To minimize the risk of injury , read this manual and familiarize yourself with its contents . Part Number 89226 Rev . 12 / 08
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Introduction The Shindaiwa CT2510 Cultivator has been Shindaiwa Inc . reserves the right to make WARNING ! designed and built to deliver superior perfor - changes to products without prior notice , The engine exhaust from this mance and reliability without compromise to and without obligation to make alterations product contains chemicals known to quality , comfort , safety or durability . to units previously manufactured . the State of California to cause can - Shindaiwa engines represent the leading cer , birth defects or other reproductive edge of high - performance engine technol - IMPORTANT ! harm . ogy , delivering exceptionally high power The information contained in these instruc - with remarkably low displacement and tions describes units available at the time weight . As an owner / operator , you’ll soon of publication . discover for yourself why Shindaiwa is sim - ply in a class by itself ! PAGE PAGE PAGE Contents Checking Unit Condition . . . . . . . . . . . . . . . . . . . . . . . . . 10 Mixing fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Operational and warning labels . . . . . . . . . . . . . . . . 2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Filling the fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Starting the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Stopping the Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Adjusting Engine Idle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Setup and adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 IMPORTANT ! The operational procedures described in this manual are intended to help you get the most from this unit as well as to protect you and others from harm . These procedures are guidelines for safe operation under most conditions , and are not intended to replace any safety rules and / or laws that may be in force in your area . If you have questions regarding your Shindaiwa hand held power equipment , or if you do not understand something in this manual , contact your local Shindawa dealer for assistance . You may also contact Shindaiwa Inc . at the address printed on the back of this Manual . Attention Statements Throughout this manual are special “ atten - CAUTION ! WARNING ! tion statements � . A statement preceded by the word A statement preceded by the “ CAUTION � contains information DANGER ! triangular attention symbol and the that should be acted upon to prevent word “ WARNING � contains information A statement preceded by the mechanical damage . that should be acted upon to prevent triangular attention symbol and the serious bodily injury . word “ DANGER � contains information NOTE : that should be acted upon to prevent A statement preceded by the word “ NOTE � IMPORTANT ! serious injury or death . contains information that is handy to know A statement preceded by the word and may make your job easier . “ IMPORTANT � is one that possesses spe - cial significance . Operational and warning labels This machine operates at very high Make sure no one is Wear non - slip heavy - duty speeds and has the potential to do within 15 M / 50 feet of gloves . serious damage if misused , abused or an operating machine . mishandled . To reduce the risk of injury , you must maintain control at all times . Safety tip shoes or boots with The tines are sharp ! Keep Read and follow this manual , make non - slip sole should be worn . hands away from tines . Rotating sure anyone using the trimmer does tines may cause injury . The tines likewise . Failure to do so could may continue to rotate after the result in serious personal injury or unit is shut off . machine failure . Keep this manual for future reference . Beware of thrown or Keep feet away from tines . richocheted objects . Rotating tines may cause injury . Always wear eye and hearing The tines may continue to rotate protection . Shindaiwa recommends after the unit is shut off . wearing a face shield as additional face and eye protection . 2
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Safety Work Safely WARNING ! WARNING ! This machine operates at very high speeds Never make unauthor - Never operate and has the potential to do serious dam - ized attachment installations . Do not power equipment of any age if misused , abused or mishandled . To use attachments not approved by kind if you are tired or if you are under reduce the risk of injury , you must main - Shindaiwa for use on this unit . the influence of alcohol , drugs , medica - tain control at all times , and observe all tion or any other substance that could safety precautions during operation . Never Stay Alert affect your ability or judgement . permit a person without training or instruc - You must be physically and mentally fit to tion to operate this machine ! operate this unit safely . WARNING ! Use Good Judgement Never operate this machine around bur - Do Not operate this machine with the tines or be thrown back at you or toward ied electrical cables ! muffler removed . a bystander . Do Not operate the tiller / cultivator in ALWAYS keep the unit as clean as prac - Never smoke or light fires near the standing water . tical . Keep it free of loose vegetation , hedge trimmer . Keep the unit away from mud , etc . excessive heat . Engine fuel is very flam - ALWAYS wear eye protection to shield mable and fire could lead to serious per - against thrown objects . ALWAYS hold the unit firmly with both sonal injury or property damage . hands while operating and maintain con - Never run the engine when transport - trol at all times . ALWAYS stop the engine immediately ing the unit . if it suddenly begins to vibrate or shake . ALWAYS keep the handles clean . Never run the engine indoors ! Make Inspect for broken , missing or improperly ALWAYS disconnect the spark plug wire sure there is always good ventilation . installed parts or attachments . before performing any maintenance work . Fumes from engine exhaust can cause If the tines jam , switch the engine OFF , dis - serious injury or death . Never operate the tiller / cultivator around connect the spark plug lead , and inspect vines or roots that could tangle in the ALWAYS clear your work area of trash the tines , axles , and gearcase for damage . tines and cause loss of control . or hidden debris that could tangle in the Safety Labels IMPORTANT ! Safety and Operation Information Labels : Make sure all information labels are undam - aged and readable . Immediately replace dam - aged or missing information labels . New labels are available from your local authorized Shindaiwa dealer . WA R N I N G AV E R T I S S E M E N T A D V E R T E N C I A WARNING KEEP AWAY RFROMTATINGY . ROTATING TINES . ROE TINES WILL CAUS INJU 3
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Safety ( continued ) The properly equipped operator Always wear eye protection such as Wear nonslip heavy - duty work gloves to goggles or safety glasses . Wear hearing improve your grip on the unit’s handle . Wear protection devices . snug - fitting clothes that also permit freedom of movement . NEVER wear shorts ! Keep a proper footing and do not Always operate with both hands overreach — maintain your balance firmly gripping the unit . at all times during operation . Wear sturdy footwear with nonslip soles to provide good footing . Steel - toed safety boots are recommended . Never operate unit bare - footed ! Be aware of the working environment Be extremely careful of Make sure bystanders slippery terrain , especially or observers outside during rainy weather . the 15 meters ( 50 feet ) Reduce the risk of “ danger zone � wear eye bystanders being struck by protection . flying debris . Make sure no Avoid long - term operation in very one is within 15 meters — hot or very cold weather . that’s about 16 paces — of an operating attachment . If contact is made with a Do not operate the tiller / hard object , stop the engine cultivator in standing water and inspect the cutting attachment for damage . Be constantly alert for objects and debris that could be thrown either from the rotating Maintain a shallow working angle cutting attachment or bounced and avoid steep angles of operation . from a hard surface . A steep working angle risks loss of control of the machine . When operating in rocky terrain Never operate the tiller / or near electric wires or fences , cultivator around vines or roots use extreme caution to avoid that could tangle in the tines contacting such items with the and cause loss of control cultivator tines . 4
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Product Description Using the illustration as a guide , STOP / OFF ( O ) familiarize yourself with your Handlebar machine and its various components . Understanding your machine helps ensure top performance , long service Ignitionh switc life and safer operation . Throttle Control START / ON ( I ) Bar Handlebar Knobs Muffler Recoil starter Choke Airner clea Debris shield Fuel tank Wheel spport WARNING ! Cultivator tines bracket Do not make unauthorized modifications or alterations to any of these units or their components . Specifications Engine model SF2510E Dry weight 12.8 kg / 28.4 lbs . Engine type 4 - cycle , air cooled , vertical cylinder Bore x stroke 34 x27 mm / 1.3 x 1.1 in . Displacement 24.5 cc / 1.5 cu . in . - 1 Maximum power 1.1 HP / 0.8 kW @ 8000 rpm ( min ) Fuel / oil ratio 50 : 1 with ISO - L - EGD or JASO FC class 2 - cycle mixing oil * Carburetor type Walbro WYL , JX - 2407J carburetor with primer Fuel tank capacity 590 ml / 20.0 oz . Ignition One - piece electronic , transistor controlled Spark plug NGK CMR5H Air cleaner type Non - reversible heavy - duty filter element Starting method Recoil Stopping method Ignition switch Transmission type Automatic , centrifugal clutch w / bevel gear Cultivator Path Width ( max ) 22.86 cm / 9 in . Cultivating Depth ( max ) 15.24 cm / 6 in . Coverage Swath width 22.86 cm . / 9 in . Max coverage area 232.26 sq . m . / 2500 sq ft . Gear lubrication Lithium based grease EPA Emission Compliance Period * * Category A Specifications are subject to change without notice . * * The EPA emission compliance referred to on the emission compliance label located on the engine , indicates the number of operating hours for which the engine has been shown to meet Federal emission requirements . Category C = 50 hours * Shindaiwa C4 Engine Oil meets or exceeds ( Moderate ) , B = 125 hours ( Intermediate ) and A = 300 hours ( Extended ) . these specifications and is recommended for all Shindaiwa products . 5
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Setup and adjustments Your Shindaiwa cultivator comes com - With the unit upright , swing the handlebars up into the pletely assembled . You only need to posi - operating position tion and secure the handlebars , and to adjust the tine depth . WARNING Before performing any adjust - ment , repair , or cleaning work on the unit , ALWAYS make sure the engine and attachments are completely stopped . Disconnect the spark plug wire before performing service or maintenance . Positioning the Handlebars 1 . Loosen the two knobs on the inside of the handlebars . Positioning the handlebars 2 . With the unit upright , swing the handle - bars up into the operating position . 4 . Reconnect the spark plug wire to the 3 . Tighten the knobs to secure the han - NOTE : spark plug . dlebars in place . Take care not to pinch the throttle cable NOTE : or switch wires when positioning the Do not over - tighten the knobs . handlebar . Adjusting Tine Depth To adjust the cultivating depth , proceed as follows : 1 . Stop engine and disconnect spark plug Clevis pin to avoid accidental starting . Tailpiece 2 . Remove cotter pin from the clevis pin bracket and slide clevis pin out of tailpiece bracket . Cotter pin 3 . Slide the wheel support bracket up or Wheel support down in the tailpiece , aligning the holes bracket to the desire height . â– decrease digging depth . Adjust up to â– Adjust down to increase digging depth . 4 . Place the clevis pin through the hole and secure with cotter pin . Remove cotter pin from the clevis pin and slide clevis pin out of tailpiece bracket . Shallow Deep tilling tilling Slide the wheel support bracket up or down in the tailpiece to adjust digging depth 6
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Mixing fuel Examples of 50 : 1 mixing quantities CAUTION ! CAUTION ! Gasoline 2 - cycle mixing oil Never use any type of gasoline con - liters milliliters This engine is designed to operate on taining more than 10 % alcohol by vol - 2.5 - 1 50 ml a 50 : 1 mixture consisting of unleaded 5 - 1 100 ml ume ! Some types of gasoline contain gasoline and ISO - L - EGD or JASO FC 10 - 1 200 ml alcohol as an oxygenate . Oxygenated class 2 - cycle mixing oil only . Use of 20 - 1 400 ml gasoline may cause increased operat - non - approved mixing oils can lead to ing temperatures . Under certain con - excessive carbon deposits . IMPORTANT ! ditions , alcohol - based gasoline may also reduce the lubricating qualities of Mix only enough fuel for your immediate â– Use only fresh , clean unleaded gasoline some 2 - cycle mixing oils . needs ! If fuel must be stored longer than 30 with a pump octane of 87 or higher . oil with fuel stabilizer is not days and Generic oils and some outboard oils â– Mix all fuel with a 2 - cycle air - cooled used , it should first be treated with a fuel may not be intended for use in high - mixing oil that meets or exceeds ISO - L - stabilizer such as STA - BIL â„¢ . performance C4 engines , and should EGD and / or JASO FC classified oils at never be used in your Shindaiwa 50 : 1 gasoline / oil ratio . engine . Oil is a registered JASO FC classi - fied oil and also meets or exceeds ISO - L - EGD CAUTION ! performance requirements . Shindaiwa One is Mix and pour fuel outdoors where recommended for use in all Shindaiwa low emis - there are no sparks and flames . sions engines . Shindaiwa One also includes a fuel stabilizer . Filling the fuel tank â– FUeL IS HIGHLY FLAMMABLe . 1 . Place the unit on a flat , level surface . WARNING ! â– ALWAYS store gasoline in a con - Minimize the risk of Fire 2 . Clear any dirt or other debris from tainer approved for flammable liquids . around the fuel filler cap . â– smoke or light fires near the Never â– inspect the unit for fuel ALWAYS engine . CAUTION ! leaks before each use . During each â– stop the engine and allow ALWAYS refill , check that no fuel leaks from Slowly remove the fuel cap only after it to cool before refueling . around the fuel cap and / or fuel tank . If stopping the engine â– Wipe all spilled fuel and ALWAYS fuel leaks are evident , stop using the move at least 3 meters ( 10 feet ) from unit immediately . Fuel leaks must be 3 . Remove the fuel cap , and fill the tank the fueling point and source before repaired before using the unit . with clean , fresh fuel . starting . â– ALWAYS move the unit at least 3 4 . Reinstall the fuel filler cap and tighten â– place flammable material Never meters ( 10 feet ) away from a fuel firmly . close to the engine muffler . storage area or other readily flam - 5 . Wipe away any spilled fuel before start - mable materials before starting the â– Never operate the engine without the ing engine . engine . muffler and spark arrester screen in place and in good working condition . 7
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Starting the Engine IMPORTANT ! ! Engine ignition is controlled by a two position switch mounted below the throttle control bar labeled “ I � for ON or START and “ O � for OFF or STOP . WARNING ! ■Always start this unit from the operat - ■KEEP CLEAR of tines during starting ■Operate this unit only in a well - venti - ing position . To avoid serious injury , operations ! The drums may rotate during lated outdoor area . Carbon monoxide both operator and unit must be in a startup , even at engine idle . Keep your exhaust fumes can be lethal in a con - stable position during engine startup . hands and your body away from the cut - fined area . ter assembly while starting the engine ! Starting Instructions ON ( I ) Return Tube Primer Bulb 1 . Put the ignition switch into the ON [ I ] position . 3 . Press the primer bulb until fuel can be seen flowing in the transparent return tube . IMPORTANT ! The primer system only pushes fuel through the carburetor . Repeatedly press - ing the primer bulb will not flood the Press primer bulb . . . Put the ignition switch into the ON [ I ] position engine with fuel . Full throttle 4 . Position throttle control bar and choke : ( Bar fully pressed Engine start a . Cold engine : Move the choke into against handlebar ( Cold engine ) ) . Pull the the CLOSED position ( throttle control bar slightly toward the handlebar with your right hand . Idle ( Warm b . Warm engine : Move the choke engine ) . Leave into the OPEN position ( start ) the throttle control bar in the idle position . 3 . While holding the appropriate throttle position with your right hand , tip the Choke closed unit back slightly , and brace the culti - Choke in cold start postion ( CLOSED ) vator steady with your foot against the ( viewed from bottom ) Throttle bar control positions wheel , as illustrated . IMPORTANT : Make sure the tines are off the ground while starting ! Squeezing the throttle control bar too much , or too high of an Firm grip on engine idle , can cause the tines to rotate on handlebar startup . Starter Rope 4 . Use your left hand to slowly pull the recoil starter handle until resistance is felt , then pull quickly to start the Tilt unit back slightly so tines are off the Brace cultivator engine . ground with foot against wheel CAUTION ! Do not pull the recoil starter to the Cultivator starting position end of the rope travel . Pulling the recoil starter to the end of the rope travel can damage the starter . 8
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Starting the Engine ( continued ) Starting instructions ( continued ) IMPORTANT ! 5 . When the engine starts , slowly move the If the engine fails to start after several ) . choke lever to the “ OPEN � position ( attempts with the choke in the closed posi - If the engine stops after the initial start , tion , the engine may be flooded with fuel . close the choke and restart . If flooding is suspected , move the choke lever to the open position and repeatedly pull the recoil starter to remove excess fuel and start the engine . If the engine still fails to start , refer to the troubleshooting section of this manual . Open After engine starts , move choke to OPEN position ( ) ( viewed from bottom ) When the Engine Starts . . . ■After the engine starts , allow the ■Releasing the throttle control bar permits WARNING ! engine to warm up at idle 2 or 3 min - the cultivator to stop turning . If the tines The tines should NEVER utes before operating the unit . continue to rotate when the engine returns rotate at engine idle ! to idle , carburetor idle speed should ■Operate the unit with the throttle control be adjusted . See the section “ Adjusting bar fully pressed against the handlebar . Engine Idle � for the correct procedure . Starting A Flooded Engine 1 . Disconnect the spark plug lead and use 3 . Open the choke and fully depress the 5 . Repeat the starting procedure for a the spark plug wrench to remove the throttle lever with your left hand , then warm engine . spark plug ( turn counter clockwise to pull the starter handle rapidly with your 6 . If the engine still fails to start , refer to remove ) . right hand to clear excess fuel from the the troubleshooting section near the combustion chamber . 2 . Slide the ignition switch to the “ O � end of this manual . ( STOP ) position . 4 . Reinstall the spark plug and tighten it firmly . If a torque wrench is available , ■If the spark plug is fouled or soaked · m torque the spark plug to 10 - 15 N with fuel , clean the plug as necessary . ( 88 - 132 lb . - in . ) . Stopping the Engine Idle the engine briefly before stopping ( about 2 minutes ) , then click the ignition switch to the “ O � ( OFF ) position . WARNING ! The attachment can continue moving after the engine is stopped ! OFF Move ignition to OFF ( O ) 9
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Adjusting Engine Idle Idle Speed Adjustment The engine must return to idle speed whenever the throttle lever is released . Idle 1 . Place the unit on the ground , then start speed is adjustable , and must be set low the engine , and then allow it to idle 2 - 3 enough to permit the engine clutch to dis - minutes until warm . engage the cultivator assembly . 2 . If the attachment rotates when the engine is at idle , reduce the idle speed WARNING ! by turning the idle adjustment screw The cultivator assembly counter - clockwise . must NEVER rotate at engine idle ! 3 . If a tachometer is available , the engine If the idle speed cannot be adjusted idle speed should be final adjusted to by the procedure described - 1 ( rpm ) . 3,000 ( ± 300 ) min here , return the trimmer to your Idle Adjusting Shindaiwa dealer for inspection . NOTE Screw Carburetor fuel mixture adjustments are Adjusting Engine Idle preset at factory and cannot be serviced in the field . Checking Unit Condition WARNING ! NEVER operate the unit with the pro - “ Tine Removal and Replacement � in the tective devices ( ignition switch , etc . ) Maintenance section of this manual . A debris shield is no guar - removed ! antee of protection against rico - ALWAYS stop the engine immediately and chet . YOU MUST ALWAYS GUARD ALWAYS make sure the tool attachment check for damage if you strike a foreign AGAINST FLYING DEBRIS ! is properly installed and firmly tightened object or if the machine becomes tangled . before operation . Do not operate with broken or damaged equipment . Use only authorized Shindaiwa parts and accessories with your Shindaiwa Cultiva - NEVER allow the engine to run at high tor . Do not make modifications to your RPM without a load . Doing so could dam - machine without the written approval of age the engine . Shindaiwa . NEVER operate a machine with worn or NEVER use a cracked or warped tine : damaged fasteners or attachment holders . replace it with a serviceable one . For instructions on replacing tines , refer to 10
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Operation Using the cultivator WARNING Prevent serious personal injuries ! To prevent serious personal injury , If the tines jam , switch the engine OFF , ■Dress properly to reduce the risk of ■■injury when operating this unit . Do not always stop the engine when opera - disconnect the spark plug lead , and wear loose clothing or jewelry . Wear tion is delayed or when transporting inspect the tines , axles and gearcase eye and ear / hearing protection . Wear the unit from one location to another . for damage . heavy long pants , boots and gloves . ■■Be careful when operating on a slope Never operate the unit around vines or Do not wear short pants , sandals or or slippery terrain , especially during roots that could tangle in the tines and operate barefoot . rainy weather . cause loss of control . ■To prevent serious personal injury , ■■Never operate this machine around Maintain a shallow working angle and never pick up or carry the unit while buried electrical cables ! avoid steep angles of operation . A the engine is running . steep working angle risles loss of con - ■operate the cultivator in stand - Do not ■To prevent serious personal injury , use trol of the machine . ing water . extreme caution when reversing or ■Transport the machine with the pulling the unit towards you . engine OFF . Instructions for safe operation 1 . Move the cultivator to the work area prior to starting the engine . Transport the cultivator by pushing or pulling it along on its wheels . 2 . Start the unit by following the Starting Instructions . 3 . With the engine running and the tines off the ground , depress the throttle control to increase the engine speed . 4 . While holding the upper handle with both hands , slowly lower the cultivator until the tines make contact with the ground . 5 . As cultivating action begins , tilt the cul - tivator up slightly using the handle so that the tines can penetrate the ground . 6 . Once the ground has been broken , con - tinue at a moderate pace until you are familiar with the controls and the han - dling of the cultivator . While holding the upper handle with both hands , slowly lower the cultivator NOTE until the tines make contact with the ground If the tines are digging too deep or not deep enough , adjust the wheel bracket as described in the section , “ Adjusting Tine Depth � . Operating tips 1 . WATER the area to be tilled at least 24 ■in soft soils Use the correct method for the job : SHALLOW WEEDING hours before your planned tilling opera - is easiest when using a gentle rocking ■( up to 25 cm / FOR DEEP TILLING tion ; then water again about 3 hours motion . 10 � depth ) , use full throttle while slowly before the actual tilling . rocking the tiller back and forth over the work area 2 . PULL the unit slowly toward you when tilling or cultivating Transporting the Unit On site : ■Push or pull the unit to the next loca - ■Loosen the handle knobs and swing tion to be cultivated . down the handle to create a more com - ■Stop the engine . pact profile for moving and / or storage . ■Tilt the unit back until the tines clear Transporting in a vehicle : ■Always make sure the unit is well the ground . ■Always make sure the engine is secured in your vehicle to prevent fuel stopped . spillage and damage . . 11
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Maintenance General Maintenance IMPORTANT ! Muffler To keep your C4 engine strong and reliable , MAINTENANCE , REPLACEMENT Shindaiwa recommends that you check This unit must never be operated with a OR REPAIR OF EMISSION CONTROL and service the air filter as instructed in the faulty or missing spark arrester or muf - DEVICES AND SYSTEMS MAY BE PER - 10 - Hour Maintenance section that follows . fler . Make sure the muffler is well secured FORMED BY ANY REPAIR ESTABLISH - Cultivator tines and in good condition . A worn or damaged MENT OR INDIVIDUAL ; HOWEVER , muffler is a fire hazard and may also cause Check tine condition frequently . If a WARRANTY REPAIRS MUST BE PER - hearing loss . tine’s performance changes suddenly , FORMED BY A DEALER OR SERVICE stop the engine and check the tine for CENTER AUTHORIZED BY SHINDAIWA Spark Plug cracks or other damage . Replace a dam - INC . THE USE OF PARTS THAT ARE NOT Keep the spark plug and wire connections aged tine IMMEDIATELY ! EQUIVALENT IN PERFORMANCE AND tight and clean . DURABILITY TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF WARNING ! Fasteners THE EMISSION CONTROL SYSTEM AND Never repair a damaged culti - Make sure nuts , bolts , and screws ( except MAY HAVE A BEARING ON THE OUT - vator tine by welding , straightening , or carburetor adjusting screws ) are tight . COME OF A WARRANTY CLAIM . by modifying its shape . An altered tine Air Filter may break during operation , resulting WARNING ! in serious personal injury . The C4 engine that powers your Shindaiwa model is a hybrid 4 - stroke engine . As a Non - standard accessories , hybrid , the engine is lubricated by oil mixed cutting attachment , or replacement with the gasoline and air from the carbu - parts may not operate properly with retor that moves through and around the your unit and may cause damage and internal parts of the engine in a similar way lead to personal injury . that a 2 - stroke engine is lubricated . Without the heavy duty 2 - stage air filter equipped on all C4 engines , dust and dirt could also WARNING ! move through the engine , decreasing Before performing any main - engine life , increasing valve wear and the tenance , repair , or cleaning work on the need for more frequent valve adjustments . unit , make sure the engine and cutting attachment are completely stopped . Dis - connect the spark plug wire before per - forming service or maintenance . Daily Maintenance Prior to each work day , perform the ■Check the entire unit for leaking fuel or ■Carefully remove any accumulations grease . following : of dirt or debris from the muffler and fuel tank . Check cooling air intake ■Check for loose or missing screws or Remove all dirt and debris from the ■area at base of crankcase . Remove all components . Make sure the handles engine , check the cooling fins and debris . Dirt build - up in these areas and attachments are securely fastened . air cleaner for clogging , and clean as can lead to engine overheating , fire , necessary . ■Make sure nuts , bolts , and screws or premature wear . ( except carburetor idle speed adjusting ■Clean any debris or dirt from the culti - screws ) are tight . vator tines . NOTE Cleaning encrusted soil or removing strands of weeds or roots from the tines is quicker with the tines removed from the shaft . Tine removal and replacement is quick and simple . See the section “ Tine Removal and Replacement � for the cor - rect procedure . 12
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Maintenance ( continued ) 10 - Hour Maintenance ( more frequently in dusty conditions ) Unscrew Fasteners 1 . Remove the air cleaner cover by loosen - ing the thumbscrews and lifting . 2 . Remove and inspect the pre - filter . If the pre - filter is torn or otherwise damaged , Pre - Filter replace it with a new one . 3 . Clean the pre - filter with soap and water . Let dry before reinstalling . Air Filter 4 . Inspect the air filter element . If the ele - Element ment is damaged or distorted , replace it with a new one . 5 . Tap filter gently on a hard surface to dislodge debris from element or use Remove the air cleaner cover by compressed air from the inside to blow Air cleaner components loosening the thumbscrews and lifting debris out and away from the air filter element . IMPORTANT ! CAUTION ! 6 . Install the air filter element , pre - filter Direct the air stream at the inside face of Never operate the unit if the air cleaner and cover in the reverse order of the filter only ! assembly is damaged or missing ! removal . 10 / 15 - Hour Maintenance Remove and clean or replace the spark plug . ■Adjust the spark plug electrode gap to 0.6 - 0.7 mm . If the spark plug must be 0.6 – 0.7 mm ( . 025 - . 028 inch ) replaced , use only an NGK CMR5H or equivalent resistor type spark plug of the correct heat range . CAUTION ! Before removing the spark plug , clean the area around the plug to prevent Clean the spark plug dirt and debris from getting into the and check the gap at the electrode . engine’s internal parts . NOTE : The NGK CMR5H also meets the spark plug gap - - all models requirements for electro magnetic com - pliance ( EMC ) . 13
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Maintenance ( continued ) 50 - hour Maintenance Remove and replace the fuel filter element . ■Use a hooked wire to extract the fuel filter from inside the fuel tank . Inspect the fuel filter element . If it shows signs of contamination , replace with a genuine Shindaiwa replacement fuel filter element . Hooked Wire Fuel filter element CAUTION ! Make sure you do not pierce the fuel line with the end of the hooked wire . The line is delicate and can be dam - Remove and replace the fuel filter element aged easily . If damage , splitting or deterioration Before reinstalling the new filter is noted , the unit should be removed element , inspect the condition of all from service until it can be inspected the fuel system components ( fuel or repaired by a Shindaiwa - trained pick - up line , fuel return line , tank vent service technician . line , tank vent , fuel cap and fuel tank ) . 139 / 150 - Hour Maintenance Maintenance after first 139 - hours , The valve clearance should be adjusted ■■Replace the spark plug annually : Use then every 150 - hours thereafter . only NGK CMR5H or equivalent resis - annually or every 135 hours . It is tor type spark plug of the correct heat highly recommended that this is ■Combustion chamber should be decar - range . Set spark plug electrode gap to done by a Shindaiwa - trained service bonized , and the valve clearance should 0.6 - 0.7 mm ( . 025 - . 028 inch ) . technician . be adjusted . It is highly recommended that this is done by a Shindaiwa - trained NOTE : service technician . The NGK CMR5H also meets the require - ments for electro magnetic compliance ( EMC ) . Valve adjustment 1 . Remove cylinder cover , rocker arm cover , and spark plug . Rotate the crankshaft while observing the pis - ton through the spark plug opening . When the piston is at the top of the compression stroke ( TDC ) , the valves can be adjusted . CAUTION ! Performing a valve adjustment ■6 . Turn engine over several times , and 2 . Loosen adjuster locknut so that the 2.5 incorrectly may cause hard starting return to TDC - compression . Recheck mm Allen socket head adjustment screw and / or can damage the engine . with proper feeler gauge to make sure can turn freely . ■If you are unfamiliar with this clearance adjustment did not change as a 3 . Insert 0.10 mm ( 0.004 � ) feeler gauge engine or uncomfortable with this result of tightening the locknut . Readjust between valve stem tip and rocker arm . procedure , consult with an autho - as necessary . rized Shindaiwa servicing dealer . 4 . Turn adjustment screw ( clockwise = 7 . Replace rocker arm cover gasket to tighter , counter - clockwise = looser ) until assure proper sealing and install cover . feeler gauge is almost snug . Back off just IMPORTANT ! enough to allow gauge to slip out with limited resistance . If a new gasket is not available and / or the 5 . While holding the adjustment screw in old gasket is not damaged , the old gasket place with the Allen driver , tighten the may be reused . Never use cracked or dam - locknut with a wrench . aged gaskets ! 14
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Maintenance ( continued ) Tine Removal and Replacement All four tines should be replaced at the same time because they will wear evenly through normal use . Work on one side at a time . WARNING ! The tines are sharp ! To avoid Hub injury , always wear heavy gloves when performing tine maintenance . NOTE Hub To make removal and replacement eas - ier , lay the cultivator back in a horizontal position on a flat , level surface with the upper handle touching the ground “ B � tine 1 . Make sure the ignition switch is in the STOP ( O ) position and disconnect the spark plug wire . Tine shaft Click pin 2 . Remove the click pin from each end of the tine shaft . Slide the tines off of the “ A � tine shaft . NOTE 5 . Place one “ A � tine and one “ B � tine onto 3 . Clean and oil the shaft . It may be necessary to wash the dirt off the shaft . the tines and shaft for ease of removal . 4 . Slide on the new tines with the hubs 6 . Secure the new tines to the shaft with facing out . The four tines are marked click pins . with the letters “ A � or “ B . � Long Term Storage Whenever the unit will not be used for 30 ■Remove remaining fuel from the fuel ■Remove the spark plug and pour lines and carburetor with the fuel days or longer , use the following proce - about 7 ml ( 1 / 4 ounce ) of 2 - cycle mix - drained from the fuel tank . To do so : dures to prepare it for storage : ing oil into the cylinder through the spark plug hole . Slowly pull the recoil ■Clean external parts thoroughly . 1 . Prime the primer bulb until no more starter 2 or 3 times so oil will evenly fuel is passing through . ■Drain all the fuel from the carburetor coat the interior of the engine . Reinstall and the fuel tank . 2 . Start and run the engine until it stops the spark plug . running . ■Before storing the unit , repair or IMPORTANT ! 3 . Repeat steps 1 and 2 until the engine replace any worn or damaged parts . All stored fuels should be stabilized with a will no longer start . ■Remove the air cleaner element from fuel stabilizer such as STA - BIL . the carburetor and clean it thoroughly NOTE with soap and water , let dry and reas - Damage caused by stale or contaminated CAUTION ! semble the element . fuel is not covered by the Shindaiwa war - Gasoline stored in the carburetor for ■Loosen the handle knobs and swing ranty policy . extended periods can cause hard start - down the handle to create a more com - ing , and could also lead to increased pact profile for moving and / or storage . service and maintenance costs . ■Store the unit in a clean , dust - free area . 15
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Maintenance ( continued ) Muffler Maintenance If the engine becomes sluggish and low on power , check and clean the spark arrester screen . Engine Cover WARNING ! Engine Cover Screws Never operate the unit with a damage or missing muffler or spark arrester ! Operating with a missing or damaged spark arrester is a fire hazard and could also dam - age your hearing . Muffler 1 . With a 3 mm hex wrench remove the Muffler Gasket 4 engine cover screws and the engine cover . 2 . With a 4 mm hex wrench , remove the 3 muffler bolts and the muffler . 3 . With a small flat bladed screwdriver remove the two screws holding the Muffler Bolts spark arrester screen and cover to the muffler . 4 . Remove the screen and clean it with a stiff bristle brush . Spark Arrester Screen 5 . Inspect the cylinder exhaust port for Spark Arrester Cover any carbon buildup . 6 . Reassemble the spark arrester , muffler and engine cover in the reverse order Cover Screws of disassembly . IMPORTANT ! If you note excessive carbon buildup , consult with an authorized Shindaiwa servicing dealer . 16
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Troubleshooting Guide ENGINE DOES NOT START What To Check Possible Cause Remedy Faulty recoil starter . Consult with an authorized servicing dealer . NO Fluid in the crankcase . Does the engine crank ? Internal damage . YES Loose spark plug . Tighten and re - test . NO Good compression ? Excess wear on cylinder , piston , Consult with an authorized servicing rings . dealer . YES Refill with fresh , clean unleaded gasolineed Fuel incorrect , stale , or contaminated ; with a pump octane of 87 or higher amixrCtio . mixture incorrect . NO Does the tank containper with a 2 - cycle mixing oil that meets oFr fresh fuel of the pro exceeds ISO - L - EGD and / or oJASOil grade ? classified oils at 50 : 1 gasoline / YES Replace fuel filter or vent as required . Check for clogged fuel filter and / Is fuel visible and moving NO Restart . or vent . in the return line when priming ? YES Move switch to “ I � ( ON ) position and The ignition switch is in “ O � ( OFF ) restart . position . Is there spark at the spark NO plug wire terminal ? Consult with an authorized servicing Shorted ignition ground . dealer . Faulty ignition unit . YES Crank the engine with the plug removed , If the plug is wet , excess fuel may be in reinstall the plug , and restart . the cylinder . 0.6mm - Clean and regap the plug to Check the spark plug . The plug is fouled or improperly gapped . 0.7mm ( . 025 - . 028 inch ) . Restart . The plug is damaged internally or of the Replace the spark plug . Check otherrect wrong size . “ Specifications � section for the c plug for your unit . Restart . 17
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Troubleshooting Guide ( continued ) LOW POWER What To Check Possible Cause Remedy Operator is overworking the unit . Operate at slower rate . Carburetor mixture is too lean . Consult with an authorized servicing Is the engine overheating ? dealer . Improper fuel ratio . Refill with fresh , clean unleaded gasolineed with a pump octane of 87 or higher mixrCatio . with a 2 - cycle mixing oil that meets For exceeds ISO - L - EGD and / or JASOoil classified oils at 50 : 1 gasoline / Fan , fan cover , cylinder fins dirty or Clean , repair or replace as necessary . damaged Carbon deposits on the piston or in the Consult with an authorized servicing muffler . dealer Clogged air cleaner element . Clean or replace the air filter Loose or damaged spark plug . Tighten or replace the spark kiplug.fications Engine is rough at allve Restart . Check the Product Specrect speeds . May also ha black page in this manual for the cor spar smoke and / or unburned plug for this unit . fuel at the exhaust . Air leakage or clogged fuel line . Repair or replace fuel filter and / or fuel line . Refill with fresh fuel / oil mixture . Water in the fuel . Piston seizure . Consult with an authorized servicing dealer . Faulty carburetor and / or diaphragm Overheating condition . Consult with an authorized servicing dealer . Improper fuel . Check fuel octane rating ; check forfuel presence of alcohol in the fuel . Re as necessary . Engine is knocking . Carbon deposits in the Consult with an authorized servicing combustion chamber . dealer . Valve clearance set incorrectly . 18
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Troubleshooting Guide ( continued ) ADDITIONAL PROBLEMS What To Check Possible Cause Remedy Clean or replace the air filter . Clogged air filter . Replace the fuel filter . Clogged fuel filter . Poor acceleration . Consult with an authorized Lean fuel / air mixture . servicing dealer . - 1 Idle speed set too low . . Adjust : 3,000 ( ± 300 ) min Switch turned off . Reset the switch and re - start . Fuel tank empty . Refuel . See Fuel section of manual . Clogged fuel filter . Replace fuel filter . Engine stops abruptly . Water in the fuel . Drain ; replace with clean fuel . See Fuel section of manual . . Shorted spark plug or loose terminal . Clean or replace spark plug . Check thethen Specifications page in this manual forhte proper spark plug for your unit . Tig the terminal . Ignition failure . Replace the ignition unit . Piston seizure . Consult with an authorized servicing dealer Ground ( stop ) wire is disconnected or Test and replace as required . switch is defective Overheating due to incorrect spark plug Replace the spark plug . Check theal Engine difficult to Specifications page in this manu for the shut off . proper spark plug for your unit . Idle engine until cool . Overheated engine . Valve cover is leaking . Consult with an authorized Top of engine is getting servicing dealer . dirty and oily . - 1 Idle set too high . Set idle : 3,000 ( ± 300 ) min . Engine will not Engine has an air leak . Consult with an authorized idle down . servicing dealer . - 1 Set idle : 3,000 ( ± 300 ) min . Engine idle too high . Replace spring / shoes as required , Broken clutch spring or worn clutch Cutting attachmentdle . Tines rotates at engine check idle speed . spring boss . moves at engine i idle . Inspect and re - tighten holders securely . Loose attachment holder . Inspect and replace attachment Warped or damaged attachment . as required . Excessive vibration . Tighten gearcase securely . Loose gearcase . Bent main shaft / worn or damaged Inspect and replace as necessary . bushings . Shaft not installed in powerhead or Inspect and reinstall as required . gearcase . Cutting attachment will Tines will not rotate . Broken shaft . Consult with a authorized not move . servicing dealer . Damaged gearcase . Clear obstruction ( s ) . If necessary , remove Vegetation or dirt obstructing movement . the tines to clean . Follow procedure in “ Removing and Replaceing Tines . � 19
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Emission System Warranty Statement Your Warranty Rights and Obligations Owners Warranty Responsibilities The California Air Resources Board , the U.S . Environ - As the small off - road engine owner , you are responsible for mental Protection Agency and Shindaiwa Inc . are pleased to the performance of the required maintenance listed in this explain the exhaust and evaporative emission control system owners manual . Shindaiwa Inc . recommends that you retain warranty on your new small off - road ( non - road ) engine . all receipts covering maintenance on your small off - road In California , new small off - road engines must be engine , but Shindaiwa Inc . cannot deny warranty solely for designed , built , and equipped to meet the State’s stringent the lack of receipts or for your failure to ensure the perfor - anti - smog standards . In other states , new 1997 and later non - mance of all scheduled maintenance . road engines must meet the Federal EPA’s stringent anti - As the small off - road engine owner , you should be aware , smog standards . however , that Shindaiwa Inc . may deny you warranty cover - Shindaiwa Inc . must warrant the emission control sys - age if your small off - road engine or a part has failed due tem on your small off - road engine for the periods of time to abuse , neglect , improper maintenance , or unapproved listed below , provided there has been no abuse , neglect , or modifications . improper maintenance of your small off - road engine . You are responsible for presenting your small off - road Your engine exhaust and evaporative emission control sys - engine to an authorized Shindaiwa Dealer as soon as a prob - tem includes parts such as the carburetor , fuel tank , the igni - lem exists . The warranty repairs should be completed in a tion system and , if equipped , the catalytic converter . These reasonable amount of time , not to exceed 30 days . components are specifically listed below . If you have any questions regarding your warranty rights Where a warrantable condition exists , Shindaiwa Inc . will and responsibilities , you should contact a Shindaiwa cus - repair your small off - road engine at no cost to you including tomer service representative at ( 503 ) 692 - 3070 or your local diagnosis , parts , and labor . Shindaiwa Dealer . Manufacturer’s Warranty Coverage Consequential Damages When sold within the U.S . , this engine’s emission con - In the event that other component parts of this product are trol system is warranted for a period of two ( 2 ) years from damaged by the failure of a warranted part , Shindaiwa Inc . will the date this product is first delivered to the original retail repair or replace such component parts at no charge to you . purchaser . During the warranty period , Shindaiwa Inc . will , at their What is Not Covered option , repair or replace any defective emission - related com - ■Failures caused by abuse , neglect , or improper mainte - ponent on this engine . During the original Warranty Period , nance procedures . these Warranty Rights are automatically transferable to sub - sequent owners of this product . ■Failures caused by the use of modified or non - approved parts or attachments . What is Covered by this Warranty This Warranty is Administered by : 1 . Carburetor Internal Components ■Throttle Valve , Needle , Jet , Metering Diaphragm Shindaiwa Inc . 2 . Fuel Tank 11975 S.W . Herman Rd . Tualatin , OR 97062 3 . Ignition System Components ( 503 ) 692 - 3070 ■■Ignition Coil Flywheel Rotor 4 . Catalytic Converter ( if originally equipped ) The emission control system for your particular Shindaiwa engine may also include certain related hoses and connectors . 20
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NOTES 21
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NOTES 22
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NOTES 23
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Shindaiwa Inc . 11975 S.W . Herman Rd . Tualatin , Oregon 97062 Telephone : 503 692 - 3070 Fax : 503 692 - 6696 www.shindaiwa.com Shindaiwa Corporation Head Office : 6 - 2 - 11 Ozuka Nishi , Asaminami - ku Hiroshima , 731 - 3167 , Japan Telephone : 81 - 82 - 849 - 2220 Fax : 81 - 82 - 849 - 2481 © 2008 Shindaiwa , Inc . Part Number 89226 Revision 12 / 08 Shindaiwa is a registered trademark of Shindaiwa , Inc . Specifications subject to change without notice . 24