Form No. 3379-664 Rev A 21in Walk-Behind Aerator Model No. 23515—Serial No. 314000001 and Up Model No. 33515—Serial No. 314000001 and Up Register at www.Toro.com.
WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Figure 1 1. Location of the model and serial numbers This spark ignition system complies with Canadian ICES-002. Important: This engine is not equipped with a spark arrester muffler.
Contents Troubleshooting ...........................................................29 Introduction .................................................................. 2 Safety ........................................................................... 4 Safe Operating Practices........................................... 4 Slope Indicator ....................................................... 6 Safety and Instructional Decals ................................. 7 Setup ......................................
Operation Safety • Never run an engine in an enclosed area. • Only operate in good light, keeping away from holes and 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. hidden hazards.
• Park the aerator on level, hard ground. Never allow untrained personnel to service it. • Use jack stands or safety latches to support the machine when working under it. • Remove the spark plug wire before making any repairs. • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running. • Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals. • Use only Toro-approved attachments.
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. 121-6150 1. Cutting hazard of hand and foot–stay away from moving parts. 121-6151 1. Choke–on 3. Continuous variable setting 2. Throttle–fast 4. Throttle–slow 119-0217 1. Warning—stop the engine; stay away from moving parts; keep all guards and shields in place.
116-8699 1. To start the engine, read the Operator’s 2. Traction drive—move the traction control lever forward to move the Manual—(1) Park the machine on a machine forward; move the traction level surface (2) Fill the engine with oil control lever backward to move the (3) Move the control bars to a neutral machine backward. position (4) Start the engine. 3. Raising/Lowering the tines—push the control lever down to lower the tines; pull the control lever up to raise the tines. 126-0651 1.
126-1209 1. Read and understand the operator’s manual before servicing this machine 4. Check tire pressure - 13 psi (2x) every 50 hours 7. Check transmission belt drive tension every 25 hours 2. Grease tine shaft bearings (2x) every 25 hours 5. Clean and oil chains (2x) every 25 hours 8. Clean and oil chains and check chain tension (2x) every 8 hours 3. Grease tine assembly idlers (2x) every 25 hours 6.
Setup Product Overview Unfolding the Handle 1. Raise the handle to the operating position. g017578 Figure 5 1. Tine-control lever 2. Traction-control lever 3. Handle Figure 4 2. Slide the oval locking rings down each side of the upper handle over the lower handle, locking the handle sections together. 4. Fuel tank 5. Recoil starter 6. Throttle lever Controls Recoil Starter Checking the Oil Level Pull the recoil starter handle to start engine (Figure 5).
Operation Note: Determine the left and right sides of the machine from the normal operating position. 1 Adjusting the Handle The height of the handle can be adjusted for comfortable operation. Stand behind the handle to determine the appropriate height settings. 2 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. g013076 Figure 6 1. Tine-control lever—raised position 2.
Note: When the crankcase is empty, pour about 3/4 of the crankcase capacity of oil in the crankcase, then follow the procedure in this section. 1. Move the machine to a level surface. 2. Clean around the dipstick (Figure 10). Figure 8 Middle handle position 1. Trunnion bracket—bottom hole 2. Lift link straps 3. Mounting bolt location 4. Handle hardware—middle holes g017580 Figure 10 3. Remove the dipstick by rotating the cap counterclockwise and pulling it out. 4.
Filling the Fuel Tank with Gasoline 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.
Starting the Engine Note: The throttle setting governs the maximum drive speed of the aerator. 1. Connect the wire to the spark plug. 2. Open the fuel valve by turn it in-line with the fuel hose (Figure 12). 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 1 • To move forward, press the control lever forward (Figure 2 14).
Note: The machine with aerate in both forward and reverse. 4. When finished, stop the machine and pull the tine control lever rearward and up to lower the rear wheels and lifts the tines out of the ground. Important: Do not drive the machine across pavement or other hard surfaces without first raising the tines. Crossing hard surfaces with the tines lowered will damage the tines. Adding Weight To ensure that the tines penetrate fully into the soil, you can add weight to the back of the machine.
Figure 18 1. Pivot shaft assembly 3. Wheel arm assembly 2. 4.8 inches (12 cm) 5. The lower ball joint bolt, on the upper link rod, should be offset 1/4 inch (6 mm) from the handle pivot bolt. If not, loosen the lock nuts on the lift link strap ball joints, adjust as necessary, and retighten locknuts. Figure 17 1. Wheel stop 3. Indicator hole 2. Nuts 4. Indicator notches 4. Lower the wheel stop to reduce the depth. Raise it to increase the coring depth and as required.
Operating Tips • For best performance and maximum tine penetration, water the turf thoroughly the day before aerating. • Clean the area of debris before using the machine. • Mark and avoid shallow obstacles such as sprinkler heads and invisible fence wires. Figure 20 1. Handle 2. Self-propel drive bail 3. 4. 5. 6. Tine-control lever Jam nut Link rod Ball joint contacts handle 8. Loosen both jam nuts, on both ends of the link rod, next to the ball joints. 9.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 5 hours • Change the engine oil. Before each use or daily • • • • • • Check the engine oil level. Check the condition and tension of the tine drive chains. Check the condition of the front drive chains. Check the condition of the drive chain sprockets. Lubricate the tine drive chains. Check the condition of the coring tines and replace any that are damaged or excessively worn.
Premaintenance Procedures Accessing the Tines The machine has a rear access panel that you can remove to access and maintain the tines (Figure 21). 1 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. Figure 21 1.
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 Tine Shaft Bearings Ensure that you place a jack-stand or block under the front of the machine to hold it up securely. Service Interval: Every 25 hours Every 25 hours 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. Important: Do not raise the rear of the machine.
Engine Maintenance 7. Install the foam pre-cleaner onto the paper air filter. Note: Use a new paper air filter if you discarded the old one. Servicing the Air Cleaner 8. Install the air filter assembly and cover. Service Interval: Every 25 hours—Clean the foam pre-cleaner (more frequently in dusty conditions). Changing the Engine Oil Every 300 hours—Replace the air cleaner elements (more frequently in dusty conditions).
1 2 Figure 27 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.) g017582 Figure 26 1. Oil drain plug 2.
Fuel System Maintenance Emptying the Fuel Tank and Cleaning the Fuel Filter Service Interval: Every 100 hours Figure 28 The fuel filter (screen) element is located inside the fuel tank. 1. Center electrode insulator 2. Side electrode 3. Air gap (not to scale) 1. Stop the engine and wait for it to cool down. Note: Drain gasoline for a cold engine only. 2. Disconnect the wire from the spark plug. 6. Carefully install the spark plug by hand (to avoid cross threading) until it is hand tight. 3.
Drive System Maintenance Checking the Tire Pressure 1 Service Interval: Every 50 hours 2 Maintain the air pressure in the tires as specified. Check the tires when they are cold to get the most accurate reading. Pressure: 83-97 kPa (12-14 psi) 1 g017588 Figure 29 1. Fuel filter 2. Fuel valve G003793 Figure 30 5. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 29). 1. Valve stem 6. Remove the filter from the fuel lines. 7.
Belt Maintenance Checking the Hydrostatic Drive Belt Service Interval: Every 25 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. Figure 31 1. Flex in the chain CAUTION A. Loosen the nut securing the idler sprocket of the chain you are tensioning (Figure 32).
Controls System Maintenance Hydraulic System Maintenance Adjusting the Self-Propel Drive Changing the Hydraulic Transmission Fluid 1. Raise the tines, stop the machine, stop the engine, and disconnect the spark plug wire. 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.
E. Support the transmission, remove and retain its mounting hardware, and carefully lower the transmission to the ground. 16. Raise and lock the handle into the operating position. 17. Check the gap between the handle and the bail. If the handle contacts the bail or if there is more than a 3mm (1/8 inch) gap, refer to Adjusting the Self-Propel Drive (page 26). 6. Carefully clean the area around the expansion tank and oil-fill port. It is important that no dirt or contamination enter the hydraulic system.
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. Important: You can wash the machine with mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the engine and hydrostatic drive.
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: 30
Notes: 31
SWS Turf Renovation and Tree Care The Toro Warranty A limited warranty (see warranty periods below) Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Products listed below to be free from defects in materials or workmanship. This warranty covers the cost of parts and labor, but you must pay transportation costs.
