Form No. 3379-373 Rev B 21in Walk-Behind Aerator Model No. 23515—Serial No. 313000001 and Up Model No. 33515—Serial No. 313000001 and Up Register at www.Toro.com.
This spark ignition system complies with Canadian ICES-002. Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land. Other states or federal areas may have similar laws.
Contents Troubleshooting ...................................................... 30 Safety ....................................................................... 4 Safe Operating Practices.................................... 4 Slope Indicator ................................................... 6 Safety and Instructional Decals .......................... 7 Setup ........................................................................ 9 Unfolding the Handle ..........................................
Safety • 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. – Never refuel or drain the aerator indoors. Check that the controls, safety switches, and shields are attached and functioning properly.
machine, stop the engine, and disconnect the spark plug wire. • Clean grass and debris from the tines, drives, mufflers, and engine to help prevent fires. Clean up oil or fuel spillage. • Let the engine cool before storing and do not store near flame. • Shut off the fuel while storing or transporting on trailers. Do not store fuel near flames or drain indoors. • Park the aerator on level, hard ground. Never allow untrained personnel to service it.
Slope Indicator g011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 20 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 20 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3. Example of how to compare slope with folded edge.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. decal121-6151 121-6151 decal121-6150 121-6150 1. Cutting hazard of hand and foot–stay away from moving parts. 1. Choke–on 3. Continuous variable setting 2. Throttle–fast 4. Throttle–slow decal119-0217 119-0217 1. Warning—stop the engine; stay away from moving parts; keep all guards and shields in place.
decal121-2009 121-2009 1. Warning—read the Operator’s Manual. 3. Thrown object hazard—stop the machine and pick up debris before operating. 5. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Warning—do not operate this machine unless you are trained. 4. Warning—keep hands away from moving parts, keep all guards and shields in place. 6. Warning—stop the engine before leaving the machine. 7.
Product Overview Setup Unfolding the Handle 1. Raise the handle to the operating position. g017579 Figure 5 1. Fuel shut-off valve 2. Air cleaner 3. Spark-plug wire g017578 Figure 4 2. Slide the oval locking rings down each side of the upper handle over the lower handle, locking the handle sections together. 9. Traction-control lever 10. Throttle lever 11. Tine-control lever 4. Engine 12. Oval handle locking ring 5. Recoil starter 13. Coring depth, wheel stop 6. Fuel tank 14.
Tine-Control Lever www.Toro.com for a list of all approved attachments and accessories. The tine-control lever lifts the rear wheels, causing the rear of the machine to be supported on the aerating tines. Push the tine control lever down to lift the wheels and drop the tines. Pull it up to lower the wheels and raise the tines out of the ground. g013076 Figure 6 1. Tine-control lever—raised position 2.
Operation Note: Determine the left and right sides of the machine from the normal operating position. Adjusting the Handle The height of the handle can be adjusted for comfortable operation. Stand behind the handle to determine the appropriate height settings. 1. To adjust the handle height, position the hardware into one of three sets of holes on each side of the mainframe as shown in Figure 7, Figure 8, and Figure 9. g023052 Figure 8 Middle handle position 1. Trunnion bracket—bottom hole 2.
Checking the Engine Oil Level Filling the Fuel Tank with Gasoline Service Interval: Before each use or daily Fuel tank capacity: 3.76 L (0.99 US gallon) The engine crankcase can hold 0.55 liters (20 ounces) of oil. Use only high-quality SAE 10W-30 weight detergent oil that has the American Petroleum Institute (API) service classification SH, SJ, Sl or higher. DANGER In certain conditions, gasoline is extremely flammable and highly explosive.
DANGER When fueling, under certain circumstances, a static charge can develop, igniting the gasoline. A fire or explosion from gasoline can burn you and others and damage property. • Always place gasoline containers on the ground and away from your vehicle before filling. • Do not fill gasoline containers inside a vehicle or on a truck or trailer bed because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge.
Stopping the Engine 1. Release the traction control lever and allow it to return to neutral. 2. Move the throttle lever all the way rearward to stop the engine. Driving the Machine • To move forward, press the control lever forward (Figure 14). The further forward you push it, the faster the machine will travel. • To move in reverse, pull the control lever rearward (Figure 14). The further rearward you pull it, the faster the machine will travel.
g013076 Figure 15 1. Tine control lever—disengaged 2. Tine control lever—engaged 3. g017583 Note: The machine with aerate in both forward Figure 14 1. Forward 2. Neutral (Stop) and reverse. 3. Reverse 4. Note: If your machine is moving too slowly and not pavement or other hard surfaces without first raising the tines. Crossing hard surfaces with the tines lowered will damage the tines. Aerating Drive the machine to the desired location and stop it. 2.
Adjusting the Tine Ground Engagement Lever 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. 2. The wheel arm and the pivot shaft assembly should have surface-to-surface contact (Figure 18). If not, check the distance of the lower lift linkage and adjust if necessary. g017584 Figure 16 1. Weight g023095 Figure 18 Adjusting the Coring Depth 1. Pivot shaft assembly A coring depth of 6.
Note: The distance should be approximately • Clean the area of debris before using the machine. 38-44 mm (1 1/2–1 3/4 inches); if it is not, then proceed to step 5. • Mark and avoid shallow obstacles such as sprinkler heads and invisible fence wires. g023024 Figure 20 1. Handle 2. Self-propel-drive bail 3. 38 to 44 mm (1 1/2 to 1 3/4 inches) 4. Tine ground engagement lever 5. Jam nut 6. Link rod 5. Loosen both jam nuts on both ends of the link rod next to the ball joints. 6.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. After the first 10 hours • Check the tension of the drive chains. After the first 25 hours • Check the tension of the hydrostatic drive belt. Before each use or daily • • • • Check the engine oil level. Lubricate the pivot arms. Check the tire pressure. Check the condition of the coring tines and replace any that are damaged or excessively worn.
Pre-Maintenance Procedures Accessing the Tines The machine has a rear access panel that you can remove to access and maintain the tines (Figure 21). g017586 Figure 22 1. Jack stand WARNING Mechanical or hydraulic jacks may fail to support machine and cause a serious injury. • Use jack stands when supporting machine. • Do not use hydraulic jacks.
Lubrication CAUTION If you do not securely block the up the front of the machine, the machine could fall on you during service, injuring you. Greasing the Center Tines Service Interval: Before each use or daily 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. Ensure that you place a jack-stand or block under the front of the machine to hold it up securely. 2.
Engine Maintenance 6. Wipe dirt from the base and the cover with a moist rag. Note: Be careful to prevent dirt and debris from Servicing the Air Cleaner entering the air duct leading to the carburetor. 7. Service Interval: Every 25 hours—Clean the foam pre-cleaner (more frequently in dusty conditions). Install the foam pre-cleaner onto the paper air filter. Note: Use a new paper air filter if you discarded Every 300 hours—Replace the paper air filter (more frequently in dusty conditions).
g002805 Figure 28 g017582 Figure 27 1. Oil drain plug 5. Install the new filter and hand tighten it 2/3 turn only. 6. Insert the dipstick into the filler neck and rotate the cap clockwise until it is tight. 7. Slowly pour oil into the oil fill tube, periodically checking the level with the dipstick, until the dipstick indicates that the engine is full. Do not overfill. (Max. fill: 0.55 L (20 oz), type: SAE 30W detergent oil with an API service classification of SH, SJ, SL, or higher.) 2.
Fuel System Maintenance because grit entering the cylinder can damage the engine. 5. Set the gap on the plug to 0.76 mm (0.030 inch) (Figure 29). Replacing the Fuel Filter Service Interval: Every 250 hours 1. Stop the engine and wait for it to cool down. Important: Drain gasoline from a cold engine only. r:\g000533 Figure 29 2. Disconnect the wire from the spark plug. 3. Close the fuel valve. 4.
Drive System Maintenance 32). If a chain flexes more than 3 mm (1/8 inch), tighten it as follows: Checking the Tire Pressure Service Interval: Before each use or daily Maintain the air pressure in the tires as specified. Check the tires when they are cold to get the most accurate reading. Pressure: 317 kPa (46 psi) g013126 Figure 32 1. Flex in the chain A. 2. Bottom of the frame opening Loosen the nut securing the idler sprocket of the chain you are tensioning (Figure 33). g003793 Figure 31 1.
Belt Maintenance C. Checking the Hydrostatic Drive Belt Service Interval: After the first 25 hours Every 50 hours 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. 2. Raise the front of the machine to gain access to the pump drive belt and block it in place. CAUTION If you do not securely block the up the front of the machine, the machine could fall on you during service, injuring you.
Controls System Maintenance • Loosen and remove the linkage adjustment from the bracket (Figure 37). • Move the lower nut to the end of the thread (Figure 37). Note: Ensure that the bail will reach the Adjusting the Machine Ground Speed 1. handle after the transmission is engaged. Loosen the 2 bolts securing the cable attachment bracket and slide it as far as possible to the left then tighten the 2 bolts (Figure 35). g020483 Figure 35 g020485 1. Bolts 2. Cable attachment bracket Figure 37 1.
Hydraulic System Maintenance Changing the Hydraulic Transmission Fluid Service Interval: Every 100 hours 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. 2. Drain the fuel from the fuel tank. 3. Slide the oval locking rings on the handle upward, and fold the handle towards the engine. 4. Slowly lift the front of the machine until the back of the machine and weight pockets are resting on the ground. Stabilize the machine with an overhead hoist.
C. Remove and retain the connecting link from the front axle chain sprocket, and remove the chain. D. Loosen the drive chain idler sprockets on each side of the unit. Remove and retain the connecting link from the drive chains, and remove the drive chain from the transmission sprockets. E. Support the transmission, remove and retain its mounting hardware, and carefully lower the transmission to the ground. 6. Carefully clean the area around the expansion tank and oil-fill port.
Tine Maintenance Storage Checking/Replacing Tines 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. Service Interval: Before each use or daily 2. Remove dirt and grime from the entire machine. 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. 2. Remove the rear access panel; refer to Accessing the Tines (page 19) 3. Manually rotate the tines on the shaft, inspecting them for wear or damage. 3.
Troubleshooting Problem Engine will not start. Possible Cause Corrective Action 1. The throttle lever is in the Off position. 1. Move the throttle lever tot he Choke position. 2. The spark plug is disconnected. 3. The fuel is turned off. 4. The traction lever is not in neutral. 2. Connect the spark plug. 3. Open the fuel valve. 4. Release the traction lever so it returns to neutral. The machine vibrates abnormally. 1. Loose bolts and/or broken parts. 1. Stop the machine and engine immediately.
Notes:
Toro Compact Utility Equipment Warranty A One-Year Limited Warranty CUE Products Conditions and Products Covered Items and Conditions Not Covered The Toro® Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Compact Utility Equipment (“Product”) to be free from defects in materials or workmanship.