FORM NO. 3321–891 Wheel Horse 12–32 Recycler Rider Model No. 70171 – 9900001 & Up Operator’s Manual IMPORTANT: Read this manual carefully. It contains information about your safety and the safety of others. Also become familiar with the controls and their proper use before you operate the product.
Introduction Thank you for purchasing a Toro product. All of us at Toro want you to be completely satisfied with your new product, so feel free to contact your local Authorized Service Dealer for help with service, genuine replacement parts, or other information you may require. Whenever you contact your Authorized Service Dealer or the factory, always know the model and serial numbers of your product.
Contents Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Safe Operating Practices . . . . . . . . . . . . . . Sound Pressure Level . . . . . . . . . . . . . . . . . Sound Power Level . . . . . . . . . . . . . . . . . . Vibration Level . . . . . . . . . . . . . . . . . . . . . Slope Chart . . . . . . . . . . . . . . . . . . . . . . . . . Symbols Glossary . . . . . . . . . . . . . . . . . . . Symbols Glossary . . . . . . . . . . . . . . . . . . . Symbols Glossary . . . . . . . . . . .
Safety This machine meets or exceeds European Standards in effect at the time of production. However, improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER—“personal safety instruction.” Failure to comply with the instruction may result in personal injury or death. General Operation 1.
Safety 14. Do not operate the machine while under the influence of alcohol or drugs. 15. Watch for traffic when operating near or crossing roadways. • Keep all movement on slopes slow and gradual. Do not make sudden changes in speed or direction. • Avoid starting or stopping on a slope. If tires lose traction, disengage the blades and proceed slowly straight down the slope. 16. Use extra care when loading or unloading the machine onto a trailer or truck. DO NOT 17.
Safety 4. Never carry children. They may fall off and be seriously injured or interfere with safe machine operation. 5. Never allow children to operate the machine. 6. Use extra care when approaching blind corners, shrubs, trees, the end of a fence or other objects that may obscure vision. Service 1. 2. Stop the engine and disconnect spark plug wire(s) before performing any service, repairs, maintenance or adjustments. Use extra care when handling gasoline and other fuels.
Safety Slope Chart Read all safety instructions on pages 2–4.
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Safety Symbols Glossary Safety alert symbol Dismemberment–Mower in rearward motion Safety alert symbol Stay a safe distance from the machine Read operator’s manual Consult Technical Manual for proper service procedures Thrown or flying objects– Whole body exposure Thrown or flying objects– Rotary side-mounted mower. Keep deflector shield in place Severing toes or foot– mower blade Severing fingers or hand– mower blade Rotating blade can cut off toes or fingers.
Safety Symbols Glossary Cutting element– basic symbol Riding on this machine is allowed only on a passenger seat & only if the driver’s view is not hindered Cutting element– height adjustment Cutting unit–lower Crushing of fingers or hands–Force applied from side Cutting unit-raised Kickback or upward motion–Stored energy Cutting or entanglement of foot–Rotating auger Severing of fingers or hand– impeller blade Keep a safe distance from snowthrower Stay a safe distance from the snowthrower Shut of
Safety Symbols Glossary Fast Slow Fuel Fuel level Decreasing/Increasing On/Run Volume empty Off/Stop Volume full Engine Battery charging conditin Engine start Head lights– Main/high beam Engine stop Brake system Choke Parking brake Engine temperature Clutch PTO (Power Take Off) Engine lubricating oil pressure Engage Disengage Engine lubricating oil level Unlock Lock Key Choice Switch 9
Gasoline and Oil Recommended Gasoline Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. POTENTIAL HAZARD • In certain conditions gasoline is extremely flammable and highly explosive. WHAT CAN HAPPEN IMPORTANT: Never use methanol, gasoline containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged. Do not mix oil with gasoline.
Gasoline and Oil Stabilizer/Conditioner Filling the Fuel Tank Add the correct amount of gas stabilizer/conditioner to the gas. Using a stabilizer/conditioner in the machine: 1. Shut the engine off and set the parking brake. 2. Clean around each fuel tank cap and remove the cap. Add unleaded regular gasoline to both fuel tanks, until the level is 1/4 to 1/2 inch (6 mm to 13 mm) below the bottom of the filler neck. This space in the tank allows gasoline to expand.
Assembly Loose Parts Note: Use the chart below to verify all parts have been shipped. DESCRIPTION QTY. USE Seat 1 Wire Tie 1 Clamp 1 Seat Spacer 4 Locknut 4 Front Wheel Assembly 2 Flat Washer 2 Hub Cap 2 Cotter Pin 2 Steering Wheel 1 Roll Pin 1 Steering Shaft Cover 1 Key 2 Use in ignition and Key Choice Switches Capscrew 2 Secure battery cables to battery, page 11.
Assembly Install Front Wheels Note: Install Steering Wheel Grease axle shafts before installing wheels 1. Install wheel onto axle. 2. Mount flat washer onto axle, insert cotter pin and open pin ends with pliers (Fig. 1). 3. Install hub caps. 1. Position wheels in straight ahead direction and slide steering shaft cover over steering shaft. 2. Slip steering wheel over shaft and line the steering wheel mount hole with the shaft mounting hole (Fig. 2).
Assembly 4. Using left front spacer stud, loosely secure wire clamp and seat to seat base with a locknut (Fig. 3). 2. Remove wing nut securing battery hold downs to rider chassis (Fig.4). 5 3 4 1 1 2 2 3 6 7 Figure 4 Figure 3 1. 2. 3. 4. 5. Seat spacers Wire clamp Seat switch wire Locknut 5. Seat switch slot 6. Seat switch connector 7. Wire tie Mount seat to seat base with (3) remaining locknuts.
Assembly 8. Slowly add electrolyte or distilled water to each cell until level is just below the “UPPER” fill line. Reinstall filler caps. Once battery is in service, distilled water only should be added; never add more electrolyte. IMPORTANT: Do not overfill battery. Electrolyte will overflow onto other parts and severe corrosion and deterioration will result. 9. 11.
Assembly Fill Crankcase With Oil The rider is shipped from the factory without oil in the crankcase. 1. Place rider on a level surface. 2. Unscrew and remove the dipstick from the oil fill tube (Fig. 6). 3. Insert a funnel into the tube and slowly add engine oil into the crankcase, using oil fill chart below. Use a high quality detergent oil classified “For Service SF, SG, SH”. Oil viscosity (weight) must be selected according to anticipated ambient temperature. See table below. 4.
Operation Think Safety First Clutch Pedal Please carefully read all the safety instructions on pages 2–7. Knowing this information could help you, your family, pets or bystanders avoid injury. (Fig. 8)—Used in conjunction with gear shift. Depress clutch pedal fully when shifting gears and whenever brake is used. Controls Brake Pedal Become familiar with all the controls (Fig. 7) before you start the engine and operate the machine. (Fig. 8)—Must be depressed to slow down or stop the rider.
Operation Key Choice Releasing the Parking Brake 1. To release the parking brake, depress brake pedal, and parking brake lever will return it to its disengaged position. Release brake pedal slowly. (Fig. 9)—A hold and release switch used for deactivating the “Operating–In–Reverse” interlock feature. Located on panel in front of and below the seat. Ignition Switch (Fig. 8)—Switch is part of engine ignition system, and it has three positions: OFF, RUN and START.
Operation 2. 3. 4. Move throttle control to CHOKE position, and rotate ignition key to START. When the engine starts, release the key and immediately move throttle control between OPERATE and IDLE positions if choke was used for starting. Select desired height-of-cut and move deck engagement lever to ENGAGE. Release parking brake (if necessary), depress clutch pedal and shift into gear. 3. Operating Procedure 1. Move deck engagement lever to DISENGAGE 2.
Operation The Safety Interlock System Understanding the Safety Interlock System The safety interlock system is designed to prevent the engine from starting unless: • The power take off (PTO) is “OFF” • The gear shift lever is in “N” neutral. The safety system is designed to stop the engine if: • You rise from the seat when the clutch/brake pedal is released. • You rise from the seat when the blade (PTO) is “ENGAGED.
Operation 1 POTENTIAL HAZARD • A child or bystander could be backed over by a riding mower with its blade(s) engaged. WHAT CAN HAPPEN • Blade contact will cause serious personal injury or death. HOW TO AVOID THE HAZARD • Do not mow in reverse unless absolutely necessary. • Always look backward and down before backing up. • Use “Key Choice” switch only if you are certain no children or other bystanders will appear in the mowing area.
Operation 4. Sit on the seat, move gear shift into neutral, deck engagement lever into DISENGAGE and ensure parking brake is engaged. Rotate ignition key to START. Engine should start and continue to run. Then engage deck engagement lever and carefully raise off the seat: the engine should stop. If the engine does not stop running, shut the engine off and have interlock system repaired by an Authorized TORO Service Dealer.
Operation IMPORTANT: When the discharge cover is in place, it must be secured to the grass deflector with the metal tab and wingnut. POTENTIAL HAZARD • Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. WHAT CAN HAPPEN • Contact with rotating mower blades(s) and thrown debris will cause injury or death.
Operation Positioning the Seat The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. 1. Raise the seat and loosen the lock nuts (Fig. 13). 2. Slide the seat to the desired position and tighten the lock nuts. 1 Recycler Mowing Tips Recycler Rider Features Your Toro Recycler rider has a new and completely different cutting concept. It leaves your lawn with a bagged look without bagging clippings.
Operation Tips for Cutting Grass Even with the Recycler rider, you may encounter conditions where it is not possible to incorporate all of the grass clippings or leaves all of the time into the grass. Follow these instructions for the best cutting results and lawn appearance: POTENTIAL HAZARD • Unexpected blade contact can occur WHAT CAN HAPPEN • Personal injury can occur from contact with blade • Always use FAST (full) throttle when mowing. • Maintain a sharp blade throughout the cutting season.
Operation • • MOWING IN EXTREME CONDITIONS—Air is required to cut and recut grass clippings in rider housing, so do not set height-of-cut too low or totally surround housing by uncut grass. Always try to have one side of the rider housing free from uncut grass, allowing air to be drawn into housing. When making an initial cut thru center of uncut area, operate rider at a slower ground speed and back up if rider starts to clog.
Operation If the lawn appearance is not satisfactory after mowing, try one of the following: • Sharpen the blade. • Raise the height-of-cut setting on your mower. • Cut your grass more frequently. • Reduce ground speed. • Overlap cutting swaths instead of cutting a full swath with each pass. • Mow across the marginal areas a second time. Tips For Cutting Leaves In the fall, you can cut your leaves up into finely cut particles and inject the particles down into the grass.
Maintenance Service Interval Chart Service Operation 5 Hours Change Oil (Initial) X Change Oil (Periodic) 25 Storage Hours Service X X X Check Cutter Blade X X X Check Brake X X X Grease Front Axle Spindles (2) & Wheel Bearings (2) and Rear Axle (2) X X Lubricate Pivot Points X X Service Air Cleaner X X Check Spark Plug X X Check Blade Drive Belt X Check Traction Drive Belt X Drain Gasoline X Wash Underside of Mower X X X X Paint Chipped Surfaces X Remove Rear Wheels a
Maintenance POTENTIAL HAZARD • If you leave the key in the ignition switch, someone could start the engine. WHAT CAN HAPPEN • Accidental starting of the engine could seriously injure you or other bystanders. HOW TO AVOID THE HAZARD • Remove the key from the ignition switch and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).
Maintenance 6. Insert a new paper cartridge into the air cleaner body. Reassemble the air cleaner. IMPORTANT: Petroleum solvents, such as kerosene, are not to be used to clean the paper cartridge. They may cause deterioration of the cartridge. DO NOT OIL THE CARTRIDGE. DO NOT USE PRESSURIZED AIR TO CLEAN THE CARTRIDGE. IMPORTANT: Always operate the engine with the air cleaner element in place or engine damage will result. Checking Oil Level 1.
Maintenance 2. 3. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. Then disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. Place drain pan below drain plug (Fig. 17). Remove drain cap. Allow all oil to flow into drain pan. Reinstall drain cap after oil stops flowing. Note: after every 25 operating hours. Recommended air gap is 0.030 of an inch (0.762 mm).
Maintenance Greasing and Lubrication Checking the Spark Plug 1. Look at the center of the spark plug(s) (Fig. 19). If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty. IMPORTANT: Never clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, or cracks.
Maintenance 2. Grease rear axles with one to two pumps of No. 2 general purpose grease. The zerks are located just inside of the rear tires on the bottom of the transaxle (Fig. 21). Lubricate Pivot Points The mechanical pivot points on the rider must be oiled after every 25 hours of operation; lubricate more frequently when conditions are dusty or sandy. 3. Oil pivot points of steering, drive, brake, clutch, and deck engagement linkage with light oil (Fig. 21). Wipe up any excess oil. Figure 22 6.
Maintenance 1 2323 Figure 23 1. Valve stem 2. Tighten locknut approximately 1/4 turn clockwise (Fig. 24). 3. Check operation of the brake by pushing rider: no brake drag should be evident. If drag is evident, rotate locknut an additional 1/8 turn counter-clockwise or until there is no drag. IMPORTANT: With the parking brake released, the rear wheels must rotate freely when you push the mower. If brake action and free wheel rotation cannot be achieved contact your service dealer immediately.
Maintenance Fuel Tank Front Wheel Toe-In Draining The Fuel Tank Service Interval/Specification POTENTIAL HAZARD • In certain conditions gasoline is extremely flammable and highly explosive. WHAT CAN HAPPEN • A fire or explosion from gasoline can burn you, others, and cause property damage. HOW TO AVOID THE HAZARD • Drain gasoline from the fuel tank when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills.
Maintenance Removing the Battery 2 2 1 1 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Tip seat forward exposing battery. 3. Disconnect the negative (black) ground cable from the battery post (Fig. 27). 4. Lift the rubber cover up on the positive (red) cable. Disconnect the positive (red) cable from the battery post (Fig. 27). 5. Remove wing nut securing battery hold downs to rider chassis (Fig.27). 6.
Maintenance Installing the Battery 1 8. Install the battery into the chassis (Fig. 28). 9. Secure battery in chassis with hold down rods. 10. Using the bolt and wing nut, connect the positive (red) cable to the positive (+) battery post (Fig. 28). Slide the rubber cover over the battery post. 11. Using the bolt and wing nut, connect the negative (black) cable to the negative (–) battery post (Fig. 28). 4 3 1 2 2 1262 Figure 29 1. Filler caps 2.
Maintenance amperes or less for 4 hours (12 volts). Do not overcharge the battery. Install the filler caps after the battery is fully charged. 2 POTENTIAL HAZARD • Charging the battery produces gasses. WHAT CAN HAPPEN • Battery gasses can explode. HOW TO AVOID THE HAZARD • Keep cigarettes, sparks and flames away from battery. 4. 1 3 394 Install the battery in the chassis; refer to Installing the Battery, page 37. Figure 30 1. Blade 2. Blade stiffener 3.
Maintenance 8. POTENTIAL HAZARD • Worn, eroded or cracked blade can be dangerous. WHAT CAN HAPPEN • Blade can fail and cause personal injury to bystanders. Reinstall cutting unit: refer to Removing/Installing Cutting Unit, page 34. Removing/Installing Cutting Unit 1. Shut off engine and pull wire off spark plug. Remove ignition key 2. Lock parking brake and turn front wheels to a full turn position to allow more clearance for cutting unit. 3. Set height-of-cut control to lowest setting. 4.
Maintenance Adjusting Blade Drive Belt 1 2 4 1. Set height-of-cut lever in lowest setting and deck engagement lever to ENGAGE. 2. Remove cotter pin from adjustment rod (Fig. 33). 3. Rotate adjustment rod until there is 0.060 inch (1.5 mm) or less between end of slot in engagement bracket and outer diameter of pin (Fig. 34). 3 Note: Adjustment rod is a left hand thread. Figure 33 1. Cotter key 2. Adjustment rod 6. 7. 2 3. Cotter pin and clevis pin 4.
Maintenance 5. Install new deck belt if needed. 7. 6. Replace belt guides for transaxle pulley. Install belt retainer on idler pulley and tighten locknut. Install cutting unit: refer to Removing/lnstalling Cutting Unit, page 39. Leveling Cutting Unit 2 1 7 5 3 If mower doesn’t cut level from side–to–side and cutting blade is not bent, level the cutting unit as follows: 1. Place rider on level surface, lock parking brake, shut off engine and remove key from ignition switch. 2.
Maintenance 3 2 1 2 1 Figure 37 1. Height–of–cut support bracket 2. Capscrews Figure 38 1. Cotter pin 2. Rod 6. If adjustment is not correct, remove rod from hole in bracket again. Rotate rod two turns counterclockwise and reinstall rod in hole in bracket. 7. Check adjustment again by repeating step 5. 8. When adjustment is correct, install cotter pin in rod.
Maintenance Wiring Diagram KEY SWITCH PN 88-9830 12/32-SCH. OFF NO CONNECTION ON BIA START WIRE COLOR CODES AND X Y BIS BN BROWN PK PINK BU BLUE BK BLACK S4 (IGNITION) A I S X B Y A I GY GREY Y YELLOW S W WHITE T TAN B VIO VIOLET GN GREEN R RED OR ORANGE KEY SW PK BU OR R F2 R 1 R 7.5A S2 (PTO) BATTERY SHOWN WITH PTO DISENGAGED 2 3 T GY GND PK GY F1 S5 ALTERNATOR BU SEAT 7.
Maintenance Cleaning and Storage 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine’s cylinder head fins and blower housing. IMPORTANT: You can wash the machine with mild detergent and water. DO NOT PRESSURE WASH THE MACHINE.
Maintenance Washing Underside of Mower 1 2 3 After each use wash the underside of the mower to prevent grass build-up for improved mulch action and clipping dispersal 1. Park the machine on a hard level surface, disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. 2. Attach hose coupling to the end of the mower washout fitting, turn water on high (Fig. 39). 3. Lower the mower to the lowest height-of-cut. 4. Sit on the seat and start the engine.
Troubleshooting PROBLEM Starter does not crank Engine will not start, starts hard, or fails to keep running. Engine does not idle or idles poorly 46 POSSIBLE CAUSES CORRECTIVE ACTION 1. Deck engagement lever is in ENGAGE. 1. MOVE DECK ENGAGEMENT LEVER INTO DISENGAGE. 2. Battery is dead. 2. Charge the battery. 3. Electrical connections are corroded or loose. loose 3. Chcek electrical connections for good contact contact. 4. Transaxle is in gear. 4. Position shift lever in neutral. 5.
Troubleshooting PROBLEM Blade does not rotate Engine loses power. Engine overheats. Abnormal vibration. POSSIBLE CAUSES CORRECTIVE ACTION 1. Blade drive belt is worn, loose or broken. b k 1. Install new blade drive belt. 2 2. Blade drive belt is off pulley pulley. 2 2. Install blade drive belt and check idler pulley and belt guides for correct position. 1. Engine load is excessive. 1. Reduce ground speed. 2. Air cleaner is dirty. 2. Clean air cleaner element. 3.
Troubleshooting PROBLEM Machine does not drive. 48 POSSIBLE CAUSES CORRECTIVE ACTION 1. Traction idler is adjusted incorrectly. 1. Adjust traction drive belt. 2. Traction belt is worn, loose or broken. 2. Contact Authorized Service Dealer. 3. Traction belt is off pulley. 3. Contact Authorized Service Dealer. 4. Transaxle not shifting gears. 4. Contact Authorized Service Dealer.