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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty OPERATOR’S MANUAL Rear Tine Tiller – Model Series 450 IMPORTANT READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION Warning : This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest - covered , brush - covered or grass - covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws ( if any ) . If a spark arrester is used , it should be maintained in effective working order by the operator . In the State of California the above is required by law ( Section 4442 of the California Public Resources Code ) . Other states may have similar laws . Federal laws apply on federal lands . A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department , P.O . Box 361131 Cleveland , Ohio 44136 - 0019 . PRINTED IN U.S.A FORM NO . 769 - 02170 MTD LLC , P.O . BOX 361131 CLEVELAND , OHIO 44136 - 0019 11 / 2005
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This Operator’s Manual is an important part of your new tiller . It will help you assemble , prepare , and maintain the unit for best performance . Please read and understand what it says . Table of Contents Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Making Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Safe Operation Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Maintaining Your Tiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Assembling Your Tiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Know Your Tiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Parts Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Operating Your Tiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Cover Finding and Recording Model Number BEFORE YOU BEGIN ASSEMBLING YOUR NEW EQUIPMENT , please locate the model plate on the equipment and copy the information to the sample model plate provided to the right . You can locate the model plate by looking at Model Number Serial Number the rear of the tine shield . This information is important for use when visiting the manufacturer’s web site , obtaining assistance from the Customer Support Department , or when MTD LLC communicating with an authorized service dealer . P . O . BOX 361131 CLEVELAND , OH 44136 www.whiteoutdoor.com DEALER LOCATOR PHONE NUMBER : 800 - 949 - 4483 Customer Support If you have difficulty assembling this product or have any questions regarding the controls , operation , or maintenance of this unit , you can seek help from the experts . To reach a local White Outdoor dealer or retailer : 1 . Visit whiteoutdoor.com . Click on the Where To Get Service menu option . 2 . Phone our White Outdoor Dealer Locator line at 1 ( 800 ) 949 - 4483 . 3 . The engine manufacturer is responsible for all engine - related issues with regards to performance , power - rating , specifications , warranty and service . Please refer to the engine manufacturer’s Owner’s / Operator’s Manual , packed separately with your unit , for more information . 2
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1 Safety Labels WARNING Hot surfaces can cause severe burns . Do not touch S30647 muffler or WARNING adjacent areas . This symbol points out important safety instructions which , if not followed , could WARNING WARNING endanger the personal TO AVOID SERIOUS INJURY C 1 . READ THE OPERATOR'S MANUAL . DEPTH 2 . KNOW LOCATION AND FUNCTIONS U safety and / or property OF ALL CONTROLS . STAKE T 3 . KEEP ALL SAFETY DEVICES AND of yourself and others . SHIELDS IN PLACE AND WORKING . 4 . NEVER ALLOW CHILDREN OR TRANSPORT UNINSTRUCTED ADULTS TO Read and follow all O OPERATE TILLER . 1 " 5 . SHUT OFF ENGINE BEFORE 3 " U U NCLOGGING TINES OR MAKING instructions in this 5 " 7 " REPAIRS . T 6 . KEEP BYSTANDERS AWAY FROM manual before at - M ACHINE . 7 . KEEP AWAY FROM ROTATING KEEP AWAY FROM PARTS . tempting to operate ROTATING TINES . 8 . USE EXTREME CAUTION WHEN ROTATING TINES R EVERSING OR PULLING THE this machine . Failure M ACHINE TOWARDS YOU . WILL CAUSE INJURY . S32146 to comply with these instructions may result in personal injury . When you see this symbol . HEED ITS WARNING ! Your Responsibility Restrict the use of this power machine to persons who read , understand and follow the warnings and instructions in this manual and on the machine . 3
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WARNING : Engine Exhaust , some of its constituents , and certain vehicle compo - nents contain or emit chemicals known to State of California to cause cancer and birth defects or other reproductive harm . 2 DANGER : This machine was built to be operated according to the rules for safe operation in this manual . As with any type of power equipment , carelessness or error on the part of the operator can Safe result in serious injury . This machine is capable of amputating hands and feet and throwing objects . Failure to observe the following safety instructions could result in serious injury or death . Operation Training Practices 13 . Replace gasoline cap and tighten securely . 1 . Read , understand , and follow all instructions on the machine and in the manual ( s ) before attempting to assemble and 14 . If gasoline is spilled , wipe it off the engine and operate . Keep this manual in a safe place for future and equipment . Move machine to another area . Wait 5 regular reference and for ordering replacement parts . minutes before starting the engine . 2 . Be familiar with all controls and their proper operation . Know 15 . Never store the machine or fuel container inside near an how to stop the machine . open flame , spark or pilot light ( e.g . furnace , water or space heater , clothes dryer , etc . ) . 3 . Never allow children under 14 years old to operate this machine . Children 14 years old and over should read and 16 . Allow machine to cool 5 minutes before storing . understand the operation instructions and safety rules in Operation this manual and should be trained and supervised by a 1 . Do not put hands or feet near rotating parts . Contact with parent . the rotating parts can amputate hands and feet . WARNING 4 . Never allow adults to operate this machine without proper 2 . Do not operate machine while under the influence of alcohol instruction . or drugs . 5 . Keep bystanders , helpers , pets and children at least 75 feet This symbol points 3 . Never operate this machine without good visibility or light . from the machine while it is in operation . Stop machine if Always be sure of your footing and keep a firm hold on the out important safety anyone enters the area . handles . instructions which , if Preparation 4 . Keep bystanders , helpers , pets , and children at least 75 feet not followed , could 1 . Thoroughly inspect the area where the equipment is to be from the machine while it is in operation . Stop the machine if used . Remove all stones , sticks , wire , and other foreign endanger the personal anyone enters the area . objects which could be tripped over and cause personal 5 . Be careful when tilling in hard ground . The tines may catch safety and / or property injury . in the ground and propel the tiller forward . If this occurs , let of yourself and others . 2 Wear sturdy , rough - soled work shoes and close fitting go of the handle bars and do not restrain the machine . Read and follow all slacks and shirt . Loose fitting clothes or jewelry can be 6 . Exercise extreme caution when operating on or crossing caught in movable parts . Never operate this machine in bare instructions in this man - gravel surfaces . Stay alert for hidden hazards or traffic . feet or sandals . 7 . Never operate the machine at high transport speeds on hard ual before attempting to 3 . Disengage clutch levers and shift ( if provided ) into neutral or slippery surfaces . operate this machine . ( “ N ” ) before starting the engine . 8 . Exercise caution to avoid slipping or falling . Failure to comply with 4 . Never leave this machine unattended with the engine 9 . Look down and behind and use care when in reverse or running . these instructions pulling machine towards you . 5 . Never attempt to make any adjustments while engine is may result in personal 10 . Start the engine according to the instructions found in this running , except where specifically recommended in the manual and keep feet well away from the tines at all times . injury . When you see operator’s manual . 11 . After striking a foreign object , stop the engine , disconnect this symbol , HEED ITS 6 . To avoid personal injury or property damage use extreme the spark plug wire and ground against the engine WARNING ! care in handling gasoline . Gasoline is extremely flammable Thoroughly inspect the machine for any damage . Repair the and the vapors are explosive . Serious personal injury can damage before starting and operating . occur when gasoline is spilled on yourself or your clothes 12 . Disengage all clutch levers ( if fitted ) and stop engine before which can ignite . Wash your skin and change clothes you leave the operating position ( behind the handles ) . Wait immediately . until the tines come to a complete stop before unclogging 7 . Use only an approved gasoline container . the tines , making any adjustments , or inspections . 8 . Extinguish all cigarettes , cigars , pipes and other sources of 13 . Never run an engine indoors or in a poorly ventilated area . ignition . Engine exhaust contains carbon monoxide , an odorless and 9 . Never fuel machine indoors . deadly gas . 10 . Never remove gas cap or add fuel while the engine is hot or 14 . Muffler and engine become hot and can cause a burn . Do running . not touch . 11 . Allow engine to cool at least two minutes before refueling 15 . Use caution when tilling near fences , buildings and 12 . Never over fill fuel tank . Fill tank to no more than ½ inch underground utilities . Rotating tines can cause property below bottom of filler neck to provide space for fuel damage or personal injury . expansion . 4
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16 . Do not overload machine capacity by attempting to till soil to Your Responsibility deep at too fast of a rate . 1 . Restrict the use of this power machine to persons who read , 17 . If the machine should start making an unusual noise or understand , and follow the warnings and instructions in this vibration , stop the engine , disconnect the spark plug wire manual and on the machine . and ground it against the engine . Inspect thoroughly for 2 . The safety labels on the tiller are shown in the “ Safety 2 damage . Repair any damage before starting and operating . Labels ” section . To ensure safe operation of the tiller , follow 18 . Keep all shields , guards , and safety devices in place and the instructions on all labels closely . operating properly . Safe 19 . Never pick up or carry machine while the engine is running . 20 . Use only attachments and accessories approved by the manufacturer . Failure to do so can result in personal injury . Operation 21 . If situations occur which are not covered in this manual , use care and good judgment . Contact your dealer or telephone Practices 1 - 800 - 949 - 4483 for assistance and the name of your nearest servicing dealer . Maintenance & Storage 1 . Never tamper with safety devices . Check their proper operation regularly . 2 . Check bolts and screws for proper tightness at frequent intervals to keep the machine in safe working condition . Also , visually inspect machine for any damage . 3 . Before cleaning , repairing , or inspecting , stop the engine and make certain the tines and all moving parts have stopped . Disconnect the spark plug wire and ground it against the engine to prevent unintended starting . WARNING 4 . Do not change the engine governor settings or over - speed the engine . The governor controls the maximum safe operating speed of the engine . This symbol points 5 . Maintain or replace safety and instruction labels , as out important safety necessary . instructions which , if 6 . Follow this manual for safe loading , unloading , transporting , not followed , could and storage of this machine . 7 . Never store the machine or fuel container inside where endanger the personal there is an open flame , spark or pilot light such as a water safety and / or property heater , furnace , clothes dryer , etc . of yourself and others . 8 . Always refer to the operator’s manual for proper instructions Read and follow all on off - season storage . 9 . If the fuel tank has to be drained , do this outdoors . instructions in this man - 10 . Observe proper disposal laws and regulations for gas , oil , ual before attempting to etc . to protect the environment . operate this machine . Failure to comply with these instructions may result in personal injury . When you see this symbol , HEED ITS WARNING ! 5
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NOTE : References to right or left side of the tiller are Hex Bolt determined from behind the unit in the operating position . Flat Washer Hairpin Clip T - Knob To Remove Unit From Carton • Remove staples , break glue on top flaps , or cut tape 3 Clevis Pin at carton end and peel along top flap to open carton . • Remove loose parts included with unit ( i.e . , Assembling operator’s manual , etc . ) . • Cut corners and lay carton down flat . Your Tiller • Remove packing material . • Roll or slide unit out of carton . Check carton thoroughly for loose parts . Depth Stake • Extend control cable and lay on the floor . Be careful not to bend or kink control cable . IMPORTANT : This unit is shipped without gasoline or oil in the engine . Be certain to service engine with gasoline and oil as instructed in the separate engine manual before operating your machine . Figure 1 Loose Parts In Carton WARNING • Depth Stake Handle Remove • Handle Assembly Assembly Disconnect the spark • Shift Rod plug wire and ground NOTE : All hardware needed for assembly is attached Handle to the loose parts or the tiller . it against the engine Bracket to prevent unintended Before Assembly starting . WARNING : Disconnect the spark plug wire and ground it against the engine Be certain to check to prevent unintended starting . the clutch cable Attaching Depth Stake adjustment before • Tip the tiller forward so it rests on front counterweight . operating the tiller . • Unthread the “ T ” knob from the top of the depth stake and remove the flat washer and hex bolt . Remove the hairpin clip from the clevis pin . See Figure 1 . • Raise the tine shield hinge flap assembly and insert the depth stake assembly in the slot ( under the tine shield ) and up through the tine shield assembly . Figure 2 • Insert clevis pin through the tine shield and depth • Remove threaded eyebolt and nut from the cable end . stake assemblies . Secure with hairpin clip . • Route the clutch cable to the right side of the handle • Insert a hex bolt into top hole of the depth stake mounting brackets and underneath the handle . assembly . Place flat washer on the hex bolt and thread “ T ” knob onto the hex bolt . Tighten securely . • Push the cable through the hole in the center of the See Figure 1 . handle and snap in the plastic fitting . See Figure 3 . • Tip the tiller back down so it rests on the tines . • Remove slot head screw , nut , and two flat washers from the clutch bail . See Figure 4 . Attaching Handle Assembly • Fasten the threaded eyebolt onto bail by securing from • Remove top two bolts and flange lock nuts from top with slot head screw , flat washers and lock nut . handle mounting brackets , but do not remove the • Thread eyebolt and nut removed earlier into the bottom bolt and nut . See Figure 2 . internally threaded tube at the end of the cable . • Place handle assembly in position between the Thread engagement should be about 3 / 4 ” . Tighten nut handle mounting brackets . against tube at end of cable . See Figure 4 . • Line up holes in handle with holes in bracket and NOTE : Do not overtighten clutch cable . Too much secure with hardware previously removed . tension may cause it to break . Attaching Clutch Cable WARNING : Be certain to check the Attach the clutch cable to the handle as follows : clutch cable adjustment before operat - ( be careful not to kink the cable ) ing the tiller . 6
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Attaching Control Rod Slot Head Screw , Nut , & Flat Washers • Make sure the handle assembly is in the highest position . Refer to Know Your Tiller section . Internally • Remove hairpin clips from control rod , ( rubber Threaded Tube 3 washers to remain on control rod ) . • Insert the shorter , ( angled ) , end of the control rod through the indicator bracket on the shift cover and Assembling secure with hairpin clip that was previously removed . See Figure 5 . Your Tiller • Insert the longer end of the control rod through the hole in the gear selector handle and secure with hairpin clip.See Figure 6 . Final Clutch Adjustment IMPORTANT : Service the engine with oil and gasoline before checking this adjustment . Refer to the separate Plastic Fitting engine manual packed with your tiller for proper fuel and engine oil recommendations . Figure 3 Position the tiller so the front counterweight is against a solid object , such as a wall . With the gear selection WARNING lever in NEUTRAL , start the engine . Refer to the Slot Head Screw separate engine manual . Clutch Control Flat Washers Do not put your Standing on the right side of the tiller , examine the belt fingers under the ( inside the belt cover ) . It should not be turning . Nut belt cover . WARNING : Do not put your fingers Threaded Eyebolt under the belt cover . Maximum tire pressure under any Nut If the belt turns without bail engaged , adjust by circumstances is unthreading the internally threaded tube at the end 30 p.s.i . Equal tire of the cable a few turns clockwise ( when standing in pressure should be operator’s position ) and then retighten the nut against the tube . maintained on both Now move the shift lever to FORWARD position . Internally tires . Carefully engage the clutch by lifting the clutch control Threaded Tube bail against the handle . The wheels should spin . If the wheels do not spin with the unit in forward , adjust by unthreading the tube at the end of the cable a few turns counter - clockwise ( when standing in operator’s Figure 4 position ) and then retighten the nut against the tube . Recheck both adjustments , and readjust as necessary . NOTE : A secondary cable adjustment is available if you reach the point that additional adjustment is needed . Control Rod Remove the belt cover and move the hex nuts at the Rubber Washer other end of the cable towards the end of the casing . Indicator Bracket Then readjust the hex nuts at the handle . Tire Pressure Hairpin Clip The tires on your unit may be over - inflated for shipping purposes . Reduce the tire pressure before operating the unit . Recommended operating tire pressure is approximately 20 p.s.i . ( check sidewall of tire for tire manufacturer’s recommended pressure ) . WARNING : Maximum tire pressure under any circumstances is 30 p.s.i . Idler Pulley Rod Equal tire pressure should be main - tained on both tires . Figure 5 7
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Clutch Control Gear Selection Handle 4 Handle Adjustment Lock Know Your Tiller Depth Stake WARNING Make certain unit is in NEUTRAL when starting the engine . Figure 6 IMPORTANT : Use the reverse tine drive when tilling Gear Selection Handle virgin ground , sod , or hard soil . Use the forward tine drive The gear selection handle is located in the center of when cultivating or tilling soft ground . the handle on the tiller . It is used to select NEUTRAL , NOTE : If difficulty is encountered in moving the gear REVERSE , or one of the FORWARD mode . Pull or push selection handle , refer to following helpful hints . To shift the handle so that the indicator on top of shift cover into forward or reverse wheel drive , move tiller forward points to the operating mode desired . slightly then backward to allow the gears to synchronize . See Figure 6 . To shift into forward wheels and tine drive , push forward Neutral slightly on the gear selection handle and slowly engage Transmission is in neutral . the clutch control allowing the gears to synchronize . To Reverse stop forward movement and tine drive , release the clutch Reverse wheel drive . control . Do not shift gears with the clutch control engaged except when engaging the tines . Forward Modes Wheels Forward : Forward wheel drive only . WARNING : Make certain unit is in Tines Reverse : Forward wheel drive and reverse tine NEUTRAL when starting the engine . drive . Tines Forward : Forward wheel and tine drive . 8
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Clutch Control The clutch control is located beneath the handle . Squeezing the clutch control against the handle engages the wheel and tine drive mechanisms . 4 NOTE : Never engage clutch lever while shifting . Know Your Handle Adjustment Lock The handle may be adjusted to the height desired . Tiller Loosen the handle height adjustment lock a few turns . Pivot handle up or down to desired position . Tighten lock . Throttle Control The throttle control lever is located on the engine . It controls the engine speed and stops the engine . Choke Lever ( If Equipped ) The choke lever is located by the throttle . It is used to enrich the fuel mixture in the carburetor when starting a cold engine . WARNING Primer Button ( If Equipped ) This symbol points The primer button is located behind the air cleaner . It is out important safety used to enrich the fuel mixture in the carburetor when instructions which , if starting a cold engine . not followed , could Depth Stake endanger the personal The depth stake controls the tilling depth . Refer to safety and / or property ‘ ‘ Setting the Depth ’ ’ in the Operating Section . of yourself and others . Engine Controls Read and follow all See the separate engine manual for additional informa - instructions in this man - tion and functions of the engine controls . ual before attempting to operate this machine . Failure to comply with these instructions may result in personal injury . When you see this symbol , HEED ITS WARNING ! 9
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WARNING : Read , understand , and Setting The Depth follow all instructions and warnings on Tilling depth is controlled by the depth stake which can be the machine and in this manual before adjusted to five different settings . Adjust the side shields operating . as you adjust the depth stake . 5 Before Starting WARNING : Be certain spark plug wire is disconnected and grounded Gas And Oil Fill - Up Operating against the engine when performing any Service the engine with gasoline and oil as instructed in adjustments . the separate engine manual packed with your tiller . Read Your Tiller instructions carefully . • When using the tiller for the first time , use the second adjustment hole from the top ( 1 ” of tilling depth ) . See WARNING : Use extreme care when Figure 7 . handling gasoline . Gasoline is ex - tremely flammable and the vapors are Use This Position explosive . Never fuel machine indoors Transport Postion First Time or while the engine is hot or running . 1 ” 3 ” Starting Engine Clevis Pin 5 ” NOTE : When pushing the unit with the engine off , you 7 ” will hear a ratcheting sound ( gear noise ) which is normal . WARNING : Be sure no one is standing WARNING in front of the tiller while the engine is running or being started . Read , understand , • Place gear selection lever in NEUTRAL . and follow all instruc - tions and warnings • Place the throttle control lever in FAST position or if equipped , place the engine speed control in the on the machine and START position . in this manual before • Move choke lever to CHOKE position or if equipped , operating . push primer two ( 2 ) or three ( 3 ) times . Wait about two Use This Hole for Use extreme care ( 2 ) seconds between each push . Lowest ( shallowest ) Postion when handling Side Sheild NOTE : A warm engine may not require choking or priming . gasoline . Gasoline is • Stand at side of tiller . Grasp the starter handle and pull extremely flammable out slowly , until it pulls slightly harder . Let rope rewind and the vapors are slowly . explosive . Never fuel • Pull starter handle rapidly . Do not allow handle to snap back . Allow it to rewind slowly while keeping a firm machine indoors or hold on the starter handle . while the engine is • Repeat previous steps until engine starts . Use This Hole for hot or running . Highest ( deepest ) • As engine warms up and begins to operate evenly , Postion Be sure no one is move choke lever gradually to RUN position . If engine standing in front of falters , return to choke position , then slowly move to Figure 7 the tiller while the RUN position . engine is running or • Refer to engine manual for additional engine informa - • When breaking up sod and for shallow cultivation , use being started . tion . the setting which gives 1 ” of tilling depth ( second hole from the top ) . Place the side shields in their lowest NOTE : After starting and prior to using the tiller for the Be certain spark position . first time , be certain to check the clutch adjustment as plug wire is discon - described in “ Checking the Clutch Adjustment ” section of • For further depth , raise the depth stake and side nected and grounded the Assembly Instructions . shields and also make one or two more passes over against the engine the area . To Stop Engine when performing any • When tilling loose soil , the depth stake may be raised • Move throttle control to STOP or OFF position . adjustments . to its highest position ( use bottom adjustment hole ) to • Disconnect spark plug wire and ground to prevent give the deepest tilling depth . Raise the side shields to accidentally starting while equipment is unattended . their highest position . NOTE : After the first ten hours of operation , recheck • To transport tiller , lower the depth stake ( use top the clutch adjustment . Refer to final clutch adjustment in adjustment hole ) . Assembly Instructions . 10
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To adjust the depth stake , remove the clevis pin and hairpin Belt Tension Adjustment clip . Move the depth stake to the desired setting and Periodic adjustment of the belt tension may be required secure with the clevis pin and hairpin clip . See Figure 7 . due to normal stretch and wear on the belt . Adjustment To adjust the side shields , remove the wing nuts . Move is needed if the tines or wheels seem to hesitate while 6 the side shield to the desired position and replace the turning , but the engine maintains the same speed . wing nuts . Tighten securely . To adjust the tension on the belt , refer to Final Clutch Making Adjustment in Assembly Instructions . Operating the Tiller • Select the depth stake setting . After belt tension has been adjusted , if the belt is Adjustments excessively stretched , you may need to adjust the idler • Start engine as instructed on the previous page . pulley rod . This can easily be checked . • Move gear selection handle to one of the forward With the engine off and the clutch control bail disen - modes or reverse . gaged , shift the gear selection handle to each forward WARNING : Do not move the gear mode . If the indicator bracket touches the idler pulley selection handle with the wheels or rod ( with the clutch control bail disengaged ) , then an tines engaged . Make certain the unit is adjustment is necessary . stopped completely before changing the gear selection . A partial engage - • Disconnect and ground out spark plug wire against ment may be necessary when engaging the engine . tines . • Remove the belt cover as described under Belt WARNING Replacement in the Maintenance section . IMPORTANT : Use the reverse tine drive when tilling virgin ground , sod , or hard soil . Use the forward tine drive • Remove the hairpin clip and spring washer from the Do not move the gear when cultivating or tilling soft ground . idler pulley rod . Refer to Figure 9 . selection handle • Squeeze the clutch handle against the handle to • Move the idler pulley rod to the lower hole in the idler with the wheels or engage the wheels and tines . bracket . tines engaged . Make NOTE : Make certain the gear selection indicator is • Replace the spring washer and hairpin clip . certain the unit is correctly positioned before engaging the clutch handle . If • Check clearance of the idler pulley rod to the stopped completely it is between gears , the engine will stall . indicator bracket by shifting to each forward mode , before changing the as before . To transport tiller , do not engage the tines . Select the gear selection . A wheel drive only . Engine Adjustment partial engagement WARNING : Do not push down on the Refer to the separate engine manual for engine adjust - may be necessary handles so that the wheels are lifted off ment instructions . when engaging tines . the ground while using the tine drive , or the tiller could move backward and Do not push down cause personal injury . on the handles so For best results , it is recommended the garden be tilled that the wheels are twice ( lengthwise , then width - wise ) to pulverize the soil . lifted off the ground Making Adjustments while using the tine WARNING : Never attempt to make drive , or the tiller any adjustments while the engine is could move backward running , except where specified in and cause personal operator’s manual . injury . Handle Adjustment Never attempt to The handle height may be adjusted to the desired height . make any adjust - Refer to the handle adjustment in Know Your Tiller section . ments while the engine is running , except where speci - fied in operator’s manual . 11
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WARNING : Disconnect the spark plug The dirt washes off the tines easier if rinsed off im - wire and ground it against the engine mediately instead of after it dries . Always towel dry the before performing any repairs . tiller afterwards and apply a light coat of oil or silicone to prevent rusting or water damage . Engine 7 IMPORTANT : Never use a “ pressure washer ” to clean Refer to the separate engine manual for engine your tiller . Water can penetrate tight areas of the tiller and maintenance instructions . its chain case and cause serious damage to the unit . Maintaining Maintain engine oil as instructed in the separate Belt Replacement engine manual packed with your unit . Read and follow Your Tiller instructions carefully . Your tiller has been engineered with a belt made of special material ( Kevlar Tensile ) for longer life and better perfor - Service air cleaner every ten hours under normal mance . It should not be replaced with an off - the - shelf belt . conditions . Clean every hour under extremely dusty Order all belts through you authorized service dealer . conditions . Poor engine performance and flooding usually indicates that the air cleaner should be serviced . • Disconnect and ground the spark plug wire against the To service the air cleaner , refer to the separate engine engine . manual packed with your unit . • Remove the belt cover from the left side of the tiller by remove two torx screws from the top of belt cover . See IMPORTANT : Never run your engine without air cleaner Figure 8 . completely assembled . • Remove the hex cap nut and flat washer from the side WARNING The spark plug should be cleaned and the gap of the belt cover and remove the self tap screw at the reset every 25 hours of engine operation . Spark plug bottom of the front of the cover . replacement is recommended at the start of each tiller Disconnect the spark season ; check engine manual for correct plug type and plug wire and ground Belt Cover Torx Screws gap specification . it against the engine Clean the engine regularly with a cloth or brush . Keep before performing the cooling system ( blower housing area ) clean to any repairs or permit proper air circulation which is essential to engine maintenance . performance and life . Be certain to remove all dirt and Hex Cap Nut & combustible debris from muffler area . Flat Washer Lubrication Transmission The transmission is pre - lubricated and sealed at the factory . It requires no checking unless the transmission is disassembled . To fill with grease , lay the right half of Self Tap Screw the transmission on its side , add 22 ounces of Benalene 920 grease , and assemble the left half to it . This grease Figure 8 can be obtained at your nearest authorized dealer by ordering part number 737 - 0300 . • Remove the belt keeper bracket located behind the engine pulley by removing two hex bolts and lock Clutch Handle washers . See Figure 9 . Lubricate the pivot point on the clutch handle and the cable at least once a season with light oil . The control • Remove belt and reassemble new belt . Follow instruc - must operate freely in both directions . tions in reverse order . NOTE : Upon reassembly , make certain the belt is routed Pivot Points over the idler pulley and inside of belt keepers by engine Lubricate all pivot points and linkages at least once a pulley . See Figure 9 . season with light oil . Tine Shafts Remove tine assemblies and lubricate the tine shafts at least once a season . Wheel Shafts Remove wheel assemblies and lubricate the axle shafts at least once a season . Cleaning Tine Area Clean the underside of the tine shield after each use . 12
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• Clean the exterior of engine and the entire tiller Idler Pulley Rod thoroughly . Lubricate the tiller as described in the lubrication instructions . • We do not recommend the use of pressure washers 8 to clean your unit . They may cause damage to electric components , spindles , pulleys , bearings or the engine . The use of pressure washers will result Trouble in shortened life and reduce serviceability . • Refer to the engine manual for correct engine Shooting storage instructions . Guide • Wipe tines with oiled rag to prevent rust . Belt Keeper Bracket Idler Bracket • Store tiller in a clean , dry area . Do not store next to Engine Pulley corrosive materials , such as fertilizer . NOTE : When storing any type of power equipment in an Figure 9 unventilated or metal storage shed , care should be taken to rustproof the equipment . Using a light oil or silicone , coat Off - Season Storage the equipment and especially any springs , bearings , and If the tiller will not be used for a period longer than 30 days , the cables . following steps should be taken to prepare the tiller for storage . WARNING Trouble Possible Cause ( s ) Corrective Action Engine fails to start Fuel tank empty , or stale fuel . Fill tank with clean , fresh gasoline . Fuel will not last Do not move the gear over thirty days unless a fuel stabilizer is used . selection handle Throttle control lever not in correct Move throttle lever to start position . with the wheels or starting position ( if so equipped ) . Blocked fuel line . Clean fuel line . tines engaged . Make Dirty air cleaner . Refer to the engine manual packed with your unit . certain the unit is Choke not in ON position . Move switch to ON position . stopped completely Spark plug wire disconnected . Connect wire to spark plug . Faulty spark plug . Clean , adjust gap or replace . before changing the Engine flooded . Refer to the engine manual packed with your unit . gear selection . A Engine runs erratic Unit running on CHOKE . Move choke lever to OFF position . partial engagement Spark plug wire loose . Connect and tighten spark plug wire . may be necessary Blocked fuel line or stale fuel . Clean fuel line ; fill tank with clean , fresh gasoline . Fuel will when engaging tines . not last over thirty days unless a fuel stabilizer is used . Vent in gas cap plugged . Clear vent . Do not push down Water or dirt in fuel system . Drain fuel tank . Refill with fresh fuel . on the handles so Dirty air cleaner . Refer to the engine manual packed with your unit . Carburetor out of adjustment . Refer to the engine manual packed with your unit . that the wheels are Engine overheats Engine oil level low . Fill crankcase with proper oil . lifted off the ground Dirty air cleaner . Refer to the engine manual packed with your unit . while using the tine Air flow restricted . Refer to the engine manual packed with your unit . drive , or the tiller Carburetor not adjusted properly . Adjust carburetor as instructed in separate engine manual . could move backward Tines do not Foreign object lodged in tines . Dislodge foreign object . and cause personal engage Tine clevis pin ( s ) missing . Replace tine clevis pin ( s ) . Pulley and idler not in correct Take unit to authorized service dealer . injury . adjustment . Not shifting properly . Refer to Controls section of operator’s manual for Never attempt to proper shifting procedures . make any adjust - Control cable not adjusted properly . Adjust control cable ( see assembly instructions ) . ments while the Belt worn and / or stretched . Replace belt . engine is running , Tines skip over Improper rotation . Forward rotation should only be used on soil that has except where speci - ground already been tilled , not on virgin soil . fied in operator’s Wheels do not Clevis pin missing . Replace clevis pin . engage Tiller is not being shifted properly . Refer to Controls section of operator’s manual for manual . proper shifting procedures . Control cable not adjusted properly . Adjust control cable ( see assembly instructions ) . Belt worn and / or stretched . Replace belt . 13
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16 13 35 29 46 53 16 52 31 35 28 17 45 12 44 17 33 36 6 15 3 27 5 1 18 10 36 43 42 47 34 4 23 40 7 21 22 32 36 20 8 37 50 25 51 10 9 24 34 36 26 41 45 36 35 19 49 16 44 29 33 14 2 14 14 48 35 16 28 11 14 35 16 14
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9 Illustrated Ref . Part No . Part Description Ref . Part No . Part Description Parts List 1 . 611 - 04074 Wheel Shaft Ass’y 33T 27 . 717 - 1594 Spur Gear 16T 28 . 721 - 0378 Seal 1.0 Shaft 2 . 611 - 0021 Tine Shaft Ass’y : 18T 29 . 721 - 0379 Seal . 75 Shaft Model 450 3 . 611 - 0128 Jack Shaft Ass’y 31 . 726 - 0277 Taper Cap Ring 4 . 611 - 0129 Input Shaft Ass’y Series 32 . 732 - 0496 Compression Spring . 50 ” Leg . 5 . 617 - 0058 Rev . Idler Gear Ass’y : 30T 33 . 736 - 0163 Thrust Wash . 1.03 ” I.D . X . 1.62 ” 6 . 617 - 0059 Tine Idler Gear Ass’y : 30T 34 . 736 - 0351 Fl - Wash . 76 ” I.D . x 1.5 ” O.D . 7 . 617 - 0060 Tine Input Sprocket Ass’y : 9T 35 . 736 - 0407 Bell - Wash . 45 ” I.D . x 1.0 ” 8 . 617 - 0061 Wheel Input Sprocket Ass’y : 10T 36 . 736 - 0518 Thrust Wash . . 445 x 1.92 x . 060 9 . 617 - 0062 Gear Ass’y : 11T 37 . 736 - 3088 Fl - Wash . . 635 ” I.D . x 1.59 O.D . 10 . 686 - 0108 R.H . Housing Ass’y 40 . 738 - 0645 Detent Shaft 1 / 2 ” Dia . 11 . 710 - 0376 Hex Bolt 5 / 16 - 18 x 1 ” Lg . 41 . 738 - 0648 Jack Shaft . 625 x 2.385 12 . 710 - 0599 Hex S - Tap Scr . 1 / 4 - 20 x . 5 ” To order replacement 42 . 738 - 1013 Jack Shaft . 625 x 5.0 13 . 710 - 0604A Hex S - Tap Scr . 5 / 16 - 18 x . 625 ” parts , contact 43 . 741 - 0124 Ball Bearing 14 . 710 - 3008 Hex Bolt 5 / 16 - 18 x . 75 ” 1 ( 800 ) 949 - 4483 44 . 741 - 0420 Flange Bearing 1.0 x 2.5 x 1.38 or visit 15 . 711 - 1349 Input Shaft www.whiteoutdoor.com 45 . 741 - 0421 Flange Bearing . 75 x 2.5 x 1.38 16 . 712 - 0378 Hex Nut 7 / 16 - 20 46 . 741 - 0563 Ball Bearing . 6692 x 5745 x . 466 17 . 712 - 3004A Flange Nut 5 / 16 - 18 47 . 741 - 0862 Detent Ball . 250 18 . 713 - 0367 # 420 Chain 1 / 2 Pitch x 50 Links 48 . 750 - 0258 Spacer . 315 19 . 713 - 0484 # 50 Chain 5 / 8 Pitch x 54 Links 49 . 750 - 0570 Spacer 1.0 I.D x 2.0 O.D . x . 440 20 . 716 - 0865 Snap Ring 50 . 750 - 0664 Spacer . 505 I.D . x . 88 O.D . x . 440 21 . 717 - 0853 Shifting Fork 51 . 750 - 0671 Spacer . 75 x 2.0 x . 50 22 . 717 - 1582 Spur Gear 44T 52 . 786 - 0171 L.H . Chain Case Ass’y 23 . 717 - 1583 Spur Gear 30T 53 . 786 - 0238 Gear Positioner Bracket 24 . 717 - 1584 Spur Gear 30T 686 - 0107 Gear Case Assembly Complete 25 . 717 - 1585 Spur Gear 44T 26 . 717 - 1587 Spur Gear 44T 15
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12 67 15 12 2 70 22 70 69 60 61 68 5 10 17 23 19 18 7 20 1 3 11 8 60 14 6 16 4 61 34 62 37 9 64 25 27 30 21 39 26 38 63 27 32 36 33 31 26 24 42 46 29 49 28 66 44 26 30 41 30 44 26 40 35 50 59 51 53 65 71 58 55 56 54 57 16
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Ref . Part No . Part Description Ref . Part No . Part Description 1 . 747 - 1152 Shift Rod 35 . 786 - 0090 Shoulder 2 . 649 - 0041 Upper Handle Ass’y 36 . 786 - 0113 Tine Shield Hinge Flap 9 3 . 649 - 0034 Lower Handle Ass’y 37 . 786 - 0176 RH Handle Bracket 4 . 710 - 3005 Hex Screw 3 / 8 - 16 x 1.25 38 . 786 - 0177 LH Handle Bracket 5 . 710 - 3056 Hex Screw 5 / 16 - 18 x 3.25 39 . 786 - 0178 Tine Shield 6 . 711 - 0415 Clevis Pin 3 / 8 - 1.62 40 . 786 - 0179 Tine Shield Bracket Illustrated 7 . 712 - 0379 Flange Lock Nut 3 / 8 - 24 41 . 786 - 0180 Shoulder Spacer Bracket Parts List 8 . 712 - 0429 Hex Lock Nut 5 / 16 - 18 42 . 686 - 0109 Shift Crank Ass’y 9 . 714 - 0147 Cotter Pin 44 . 710 - 1017 Screw 1 / 4 - 14 x . 625 10 . 720 - 0313 Grip 46 . 715 - 0120 Spiral Pin 3 / 16 x 1.0 Model 450 11 . 720 - 0210A T - Knob 49 . 784 - 0208C Shift Cover Series 12 . 720 - 0278A Foam Grip 50 . 711 - 0415 Clevis Pin 14 . 726 - 0317 Cable Tie 51 . 712 - 3054 Hex Nut 3 / 8 - 24 15 . 735 - 0246 Plug 53 . 742 - 0305 13 ” Articulating Tine 16 . 736 - 0117 Flat Washer 3 / 8 ID x . 620 OD 54 . 738 - 0689 Shoulder Bolt 17 . 736 - 0242 Bell Washer . 340 ID x . 872 OD 55 . 736 - 0208 Flat Washer . 51 ” ID x 1.50 ” OD 18 . 738 - 0958 Shoulder Spacer 56 . 736 - 0253 Bell Washer . 515 ” ID x 1.14 ” OD 19 . 784 - 0190 Handle Adjustment Crank 57 . 738 - 0688 Shoulder Bolt 20 . 784 - 0191 Hex Nut Retainer Bracket 58 . 784 - 0160 Tine Adapter Ass’y 18 ” To order replacement 21 . 786 - 0120 Depth Stake 59 . 714 - 0149B Internal Cotter Pin parts , contact 22 . 747 - 1219 Bail Clutch 60 . 735 - 0127 Rubber Washer 1 ( 800 ) 949 - 4483 or visit 23 . 786 - 0181 Shift Lever Rod 61 . 714 - 0104 Cotter Pin www.whiteoutdoor.com 24 . 686 - 0044A Tine Shield Cover Ass’y 62 . 710 - 3022 Hex Screw 3 / 8 - 16 x 2.75 ” 25 . 710 - 0176 Hex Cap Screw 5 / 16 - 18 x 2.75 63 . 736 - 0204 Flat Washer 26 . 710 - 3008 Hex Cap Screw 5 / 16 - 18 x . 750 64 . 712 - 04065 Flange Nut 3 / 8 - 16 27 . 710 - 3097 Carriage Bolt 3 / 8 - 16 x 1.0 65 . 736 - 0169 Lock Washer 28 . 712 - 0421 Wing Nut 66 . 712 - 3017 Hex Nut 3 / 8 - 16 29 . 736 - 0169 Lock Washer 3 / 8 67 . 710 - 0946 Truss Screw 1 / 4 - 20 x . 65 30 . 712 - 04063 Flange Nut 5 / 16 - 18 68 . 712 - 0324 Hex Lock Nut 1 / 4 - 20 31 . 726 - 0106 Cap Nut 69 . 726 - 0273 Battery Hose Clamp 5 / 16 32 . 738 - 0849 Hex Screw 5 / 16 - 18 x . 75 ” 70 . 736 - 3090 Flat Washer . 260 ID x . 720 OD 33 . 747 - 0432 Rod 71 . 784 - 0161 Tine Adapter Plate 34 . 750 - 0885A Spacer . 322 x . 625 x 2.0 17
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18 27 44 45 9 12 17 26 28 6 13 3 8 40 1 14 2 25 11 24 15 7 4 35 20 21 5 16 38 42 41 43 36 37 39 34 33 Wheel shaft shown for reference only 31 32 29 18
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9 Ref . Part No . Part Description Ref . Part No . Part Description Illustrated 1 . 686 - 0111 Belt Cover Bracket Ass’y 24 . 756 - 1162 Input Pulley 2 . 710 - 0237 Hex Bolt 5 / 16 - 24 x . 62 ” 25 . 786 - 0064A Idler Bracket Parts List 3 . 710 - 0412 Hex Bolt 1 / 4 - 28 x . 75 ” 26 . 786 - 0185 Belt Keeper Bracket 4 . 710 - 0502A Hex Washer Screw 3 / 8 - 16 x 1.25 ” 27 . 786 - 0187 Shift Cover Bracket Model 450 5 . 710 - 0152 Hex Bolt 3 / 8 - 24 x 1.0 28 . 786 - 0193 Idler Belt Keeper Series 6 . 710 - 0599 Hex Washer Screw 29 . 634 - 04231 Wheel Assembly 16.0 x 4.6 x 8 7 . 710 - 0723 Hex Cap Screw 3 / 8 - 16 x 1.25 734 - 0808 Tire Only 16.2 x 4.6 8 . 712 - 0266 Lock Jam Nut 3 / 8 - 16 30 . 634 - 04230 Wheel Rim Assembly 9 . 712 - 0267 Hex Nut 5 / 16 - 18 31 . 734 - 0255 Air Valve 10 . 714 - 0104 Internal Cotter Pin 32 . 710 - 0606 Hex Head Screw 1 / 4 - 20 11 . 736 - 0104 Hairpin Clip 33 . 712 - 04064 Flange Lock Nut 1 / 4 - 20 12 . 736 - 0119 Lock Washer 5 / 16 ” 34 . 710 - 0382 Hex Bolt 1 / 2 - 13 x 5.0 13 . 736 - 0176 Flat Washer . 25 ID x . 93 OD 35 . 712 - 0206 Hex Nut 1 / 2 - 13 To order replacement 14 . 736 - 0271 Spring Washer . 317 ID x . 625 OD 36 . 731 - 1595 Counterweight parts , contact 15 . 736 - 0329 Lock Washer 1 / 4 ” ID 37 . 736 - 0179 Flat Washer 1 ( 800 ) 949 - 4483 16 . 736 - 0452 Bell Washer . 396 ID x 1.14 OD 38 . 736 - 0921 Lock Washer 1 / 2 or visit 17 . 738 - 0876 Shoulder Nut 7 / 16 - 20 39 . 710 - 0653 Hex Screw 1 / 4 - 20 x . 375 www.whiteoutdoor.com 18 . 746 - 1117 Clutch Cable 40 . 710 - 1017 Screw 1 / 4 - 14 x . 625 19 . 747 - 1159 Idler Pulley Rod 41 . 712 - 0392 Lock Nut 20 . 754 - 0434 V - Belt 42 . 736 - 3020 Flat Washer . 271 ID x . 630 OD 21 . 756 - 0405 Flat Idler w / Flange 3.75 OD 43 . 784 - 0158A Belt Cover 22 . 756 - 0971 Outer Engine Pulley Half 44 . 737 - 0298 Straight Pipe 1 / 4 - 3.5 ” 23 . 756 - 0972 Inner Engine Pulley Half 45 . 737 - 0132 End Cap NOTE : For painted parts , please refer to the list of color codes below . Please add the applicable color code , wherever needed , to the part number to order a replacement part . For instance , if a part numbered 700 - xxxx is painted Metallic Red , the part number to order would be 700 - xxxx - 0650 . Metallic Red : 0650 Powder Black : 0637 Oyster Gray : 0662 19
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MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with respect to e . MTD does not extend any warranty for products sold or new merchandise purchased and used in the United States , its posses - exported outside of the United States , its possessions and sions and territories . territories , except those sold through MTD’s authorized channels of export distribution . “ MTD ” warrants this product against defects in material and workmanship f . Replacement parts that are not genuine MTD parts . for a period of two ( 2 ) years commencing on the date of original purchase g . Transportation charges and service calls . and will , at its option , repair or replace , free of charge , any part found to be defective in materials or workmanship . This limited warranty shall only No implied warranty , including any implied warranty of merchant - apply if this product has been operated and maintained in accordance ability of fitness for a particular purpose , applies after the applicable with the Operator’s Manual furnished with the product , and has not been period of express written warranty above as to the parts as identi - subject to misuse , abuse , commercial use , neglect , accident , improper fied . No other express warranty , whether written or oral , except as maintenance , alteration , vandalism , theft , fire , water , or damage because mentioned above , given by any person or entity , including a dealer of other peril or natural disaster . Damage resulting from the installation or or retailer , with respect to any product , shall bind MTD . During the use of any part , accessory or attachment not approved by MTD for use period of the warranty , the exclusive remedy is repair or replacement with the product ( s ) covered by this manual will void your warranty as to of the product as set forth above . any resulting damage . The provisions as set forth in this warranty provide the sole and Normal wear parts are warranted to be free from defects in material and exclusive remedy arising from the sale . MTD shall not be liable workmanship for a period of thirty ( 30 ) days from the date of purchase . for incidental or consequential loss or damage including , without Normal wear parts include , but are not limited to items such as : batteries , limitation , expenses incurred for substitute or replacement lawn care belts , blades , blade adapters , grass bags , rider deck wheels , seats , snow services or for rental expenses to temporarily replace a warranted thrower skid shoes , shave plates , auger spiral rubber and tires . product . HOW TO OBTAIN SERVICE : Warranty service is available , WITH Some states do not allow the exclusion or limitation of incidental or PROOF OF PURCHASE , through your local authorized service dealer . To consequential damages , or limitations on how long an implied warranty locate the dealer in your area , check your Yellow Pages , or contact MTD lasts , so the above exclusions or limitations may not apply to you . LLC at P.O . Box 361131 , Cleveland , Ohio 44136 - 0019 , or call 1 - 800 - 949 - In no event shall recovery of any kind be greater than the amount of the 4483 or log on to our Web site at www.whiteoutdoor.com . purchase price of the product sold . Alteration of safety features of the This limited warranty does not provide coverage in the following cases : product shall void this warranty . You assume the risk and liability for loss , damage , or injury to you and your property and / or to others and their a . The engine or component parts thereof . These items may property arising out of the misuse or inability to use the product . carry a separate manufacturer’s warranty . Refer to applicable manufacturer’s warranty for terms and conditions . This limited warranty shall not extend to anyone other than the original b . Log splitter pumps , valves , and cylinders have a separate one purchaser or to the person for whom it was purchased as a gift . year warranty . HOW STATE LAW RELATES TO THIS WARRANTY : This limited war - c . Routine maintenance items such as lubricants , filters , blade ranty gives you specific legal rights , and you may also have other rights sharpening , tune - ups , brake adjustments , clutch adjustments , which vary from state to state . deck adjustments , and normal deterioration of the exterior finish IMPORTANT : Owner must present Original Proof of Purchase to obtain due to use or exposure . warranty coverage . d . Service completed by someone other than an authorized service dealer . MTD LLC , P.O . BOX 361131 CLEVELAND , OHIO 44136 - 0019 ; Phone : 1 - 800 - 949 - 4483
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