Form No. 3365-305 Rev C STX-26 Stump Grinder Model No. 23210—Serial No. 310000001 and Up Model No. 23210G—Serial No. 310000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
maintenance, and warranty. Replacements may be ordered through the engine manufacturer. 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.
Introduction or death if you do not follow the recommended precautions. This machine is designed to grind and remove tree stumps and surface roots. It is not intended to cut rock or any other material other than wood and the soil around a stump. Figure 2 1. Safety alert symbol Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.
Safety Servicing the Spark Plug ..................................... 25 Fuel System Maintenance ....................................... 27 Draining the Fuel Tank....................................... 27 Replacing the Fuel Filter ..................................... 27 Electrical System Maintenance................................ 28 Servicing the Battery........................................... 28 Replacing the Fuses ............................................ 30 Drive System Maintenance .............
• Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. – Use only an approved container – Never remove the gas cap or add fuel with the engine running. Allow the engine to cool before refueling. Do not smoke. – Never refuel or drain the machine indoors. • Check that the operator presence controls, safety switches, and shields are attached and functioning properly. Do not operate unless they are functioning properly. • Never leave a running machine unattended.
• Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. • Avoid starting or stopping on a slope. If the machine loses traction, proceed slowly, straight down the slope. – Use only an approved container. • Avoid turning on slopes. If you must turn, turn slowly and keep the heavy end of the machine uphill. – Never remove the gas cap or add fuel when the engine is running. Allow the engine to cool before refueling. Do not smoke.
Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. To determine the maximum slope you can safely operate the machine on, refer to Slope Operation (page 5). Use the slope indicator to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than that specified in Slope Operation (page 5). 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.
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. 93-6686 1. Hydraulic oil 2. Read the Operator's Manual. 100-4650 1. Crushing hazard of hand—keep bystanders a safe distance from the machine. 2. Crushing hazard of foot—keep bystanders a safe distance from the machine. 93-7321 1.
119-4561 1. Read the Operator's Manual before operating the cutter; engage the side lever and top button of the joystick to start the cutter blade; continue engaging the side lever to maintain cutter rotation. 2. Lower the cutter head 3. Pivot the cutter head to the right 119-4560 4. Raise the cutter head 5. Pivot the cutter head to the left 1. Ignition key 2. Engine—start 3. Engine—run 4. Engine—stop 5. Fast 6. Engine speed 7. 8. 9. 10. Slow On/Closed Choke Off/Open 11.
119-4606 1. Warning—read the Operator's Manual. 5. Explosion and electric shock hazard—do not dig in areas with buried utility lines; contact local power organizations before digging. 2. Cutting/dismemberment hazard; cutter—keep bystanders a safe distance from the machine; do not operate the cutter head while transporting the machine. 6. Tipping/crushing hazard—lower the cutter head when operating on slopes. 3. Warning—stay away from moving parts; wait for all moving parts to stop. 7.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 Description Use Qty. Grinder control lever Jam nut 1 1 Install the grinder control lever. No parts required – Check the fluid levels. No parts required – Charge the battery. 3. With the trigger oriented forward, tighten the jam nut against the receptacle to secure the lever in place (Figure 4). 1 4. Connect the wire on the lever to the 4-pin connector under the control panel (Figure 4).
Choke Lever Product Overview Before starting a cold engine, move the choke lever forward. After the engine starts, regulate the choke to keep the engine running smoothly. As soon as possible, move the choke lever all the way rearward. Note: A warm engine requires little or no choking. Hour Meter When the engine is off, the hour meter displays the number of hours of operation that have been logged on the machine.
Note: If you are operating the grinder an momentarily release the trigger (i.e., less than a half second) the grinder will continue operation. Figure 9 • To turn right, rotate the traction control clockwise (Figure 10). G008131 Figure 10 • To turn left, rotate the traction control counterclockwise (Figure 11). G008132 Figure 12 Figure 11 1. Neutral 3. Run the grinder 2. Start the grinder 4. Stop the grinder • To stop, release the traction control (Figure 7).
Specifications Note: Specifications and design are subject to change without notice. Width 33.15 inches (84.2 cm) Length 78.15 inches (198.5 cm) Height 44.61 inches (113.3 cm) Weight 1200 lb (544 Kg) Attachments/Accessories Figure 13 A selection of Toro approved attachments and accessories are available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories.
Operation DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. Note: Determine the left and right sides of the machine from the normal operating position. Important: Before operating, check the fuel and oil level, and remove debris from the machine. Also, ensure that the area is clear of people and debris.
Filling the Fuel Tank 1. Park the machine on a level surface, lower the grinder, and stop the engine. 2. Remove the key and allow the engine to cool. 3. Clean around the fuel tank cap and remove it (Figure 16). Figure 17 1. Oil filler hole 2. Oil dipstick 3. Full mark 4. Add mark 4. Remove the dipstick and wipe the end clean (Figure 17). 5. Slide the dipstick fully into the dipstick tube without threading it into the filler neck (Figure 17). 6. Pull the dipstick out and look at the end.
3 1 2 g013178 Figure 18 Figure 20 1. Hydraulic fluid check bubble 1. Throttle lever 3. Key 2. Choke lever 4. Remove the cover plate; refer to Removing the Cover Plate (page 22). 2. Move the choke lever to the On position (Figure 20). 5. Clean the area around the filler neck of the hydraulic tank and remove the cap and filter from the filler neck using a socket (Figure 19). Note: A warm or hot engine may not require choking. 3. Turn the key to the On position (Figure 20).
3. Turn the key off (Figure 20). 4. Install the bottom shield and tow the machine as required. Note: If the engine has been working hard or is hot, let it idle for a minute before turning the ignition key off. This helps cool the engine before it is stopped. In an emergency, the engine may be stopped immediately. 5. When the machine has been repaired, close the tow valves before operating it. Grinding a Stump 4. Remove the key.
2. Lower the grinder. 3. Secure the machine to the trailer with chains or straps using the tie-down/lift loops at the front and rear of the machine (Figure 23 and Figure 24). Refer to your local ordinances for trailer and tie-down requirements. Figure 22 3. Start the grinder and wait for it to get up to full speed. 4. Use the grinder control lever to swing the grinder slowly across the face of the stump, cutting away a swath of chips (Figure 22). 5. 6. 7. 8. 9. Figure 23 1.
• Cut the edges of the stump for more efficient grinding. Once your cutting swath is close to 1/4 of the wheel diameter (), lift the grinder, move forward and begin cutting on the edge again. Figure 25 • Listen to the engine and watch the grinder wheel speed to maintain the speed of the wheel. Slow down the head sweep by feathering the joystick as cutting becomes difficult. • As you grind from left to right, most of the debris will go to the left of the grinder wheel.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. After the first 50 hours • Check and adjust the track tension. Before each use or daily Every 25 hours Every 100 hours • • • • • • • Check the engine oil level. Grease the machine. (Grease immediately after every washing.) Check the engine oil level.
Removing the Cover Plate 1. Lower the grinder, stop the engine, and remove the key. WARNING There is a belt under the cover that is moving when the machine is running and can catch fingers, hands, loose hair, and clothing, causing serious injury, amputation, or death. Figure 27 1. Bottom shield 2. Bolts Always stop the engine and wait for all moving parts to stop before removing the cover. 3. Tabs 2. Loosen the bolt at the rear of the cover plate. 3. Pull the shield back and out of the machine. 3.
Lubrication Engine Maintenance Greasing the Machine Servicing the Air Cleaner Service Interval: Before each use or daily (Grease immediately after every washing.) Service Interval: Every 250 hours Grease Type: General-purpose grease. Cleaning the Air Cleaner Body and Cover 1. Lower the grinder and stop the engine. Remove the key. 1. Stop the engine and remove the key. 2. Clean the grease fittings with a rag. 2. Check the air cleaner body for damage which could cause an air leak.
Important: Never attempt to clean the safety filter. 3. Inspect the new filter(s) for damage by looking into the filter while shining a bright light on the outside of the filter. Holes in the filter will appear as bright spots. Inspect the element for tears, an oily film, or damage to the rubber seal. If the filter is damaged do not use it. 4. If you are replacing the safety filter, carefully slide the new filter into the filter body (Figure 30).
Changing the Oil 1. Start the engine and let it run five minutes. This warms the oil so it drains better. 2. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. 3. Lower the grinder. 4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 34 5. Place a pan below the drain hose. Rotate the oil drain valve to allow oil to drain (Figure 33). 1. Oil filter 2. Adapter 3.
Important: Always replace the spark plug when it has worn electrodes, an oily film on it, or has cracks in the porcelain. 3. Check the gap between the center and side electrodes (Figure 36). Bend the side electrode (Figure 36) if the gap is not correct. Installing the Spark Plug 1. Install the spark plug and the metal washer. Ensure that the air gap is set correctly. 1 2. Tighten the spark plug to 16 ft-lb (22 N-m). Figure 35 3. Connect the wire to the spark plug (Figure 36). 1.
Fuel System Maintenance 7. Install the fuel line onto the fuel shut-off valve. Slide the hose clamp close to the valve to secure the fuel line. 8. Wipe up any spilled fuel. Draining the Fuel Tank Replacing the Fuel Filter DANGER Service Interval: Every 200 hours In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. • Drain gasoline from the fuel tank when the engine is cold.
Electrical System Maintenance WARNING Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Servicing the Battery • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. Service Interval: Every 25 hours—Check the battery electrolyte level. Always keep the battery clean and fully charged. Use a paper towel to clean the battery case.
Adding Water to the Battery 4. Slide the red terminal boot off the positive (red) battery terminal. Then remove the positive (red) battery cable (Figure 39). The best time to add distilled water to the battery is just before you operate the machine. This lets the water mix thoroughly with the electrolyte solution. 5. Remove the hold down plate, j-bolts, and locknuts securing the battery (Figure 39) and remove the battery. 1. Remove the battery from the machine; refer to Removing the Battery.
4. When the battery is fully charged, unplug the charger from the electrical outlet, then disconnect the charger leads from the battery posts (Figure 41). Drive System Maintenance 5. Install the battery onto the machine and connect the battery cables, refer to Installing the Battery. Servicing the Tracks Note: Do not run the machine with the battery disconnected, electrical damage may occur.
1. Lower the grinder. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Lift/support the side of the unit to be worked on so that the track is 3 to 4 inches (7.6 to 10 cm) off of the ground. 4. Back out the tensioning bolt and jam nut (Figure 45). 5. Loosen the clamp bolts (Figure 45). 6. Push the front road wheel rearward as far as it will go (Figure 46). the drive sprocket. The track should flex no more than 1/4 to 3/8 inch (0.6 to 1 cm).
9. Beginning at the drive sprocket, coil the new track around the sprocket, ensuring that the lugs on the track fit between the spacers on the sprocket (Figure 46). 10. Push the track under and between the rear and center road wheels (Figure 46). 11. Starting at the bottom of the front road wheel, install the track around the wheel by rotating the track rearward while pushing the lugs into the wheel. 12.
Belt Maintenance Controls System Replacing the Pump Drive Belt Maintenance The factory adjusts the controls before shipping the machine. However, after many hours of use, you may need to adjust the traction control alignment, the neutral position of the traction control, and the tracking of the traction control in the full forward position. If the pump drive belt begins to squeal or is cracked, worn, or frayed, replace it. Contact you Authorized Service Dealer for a replacement belt. 1. Raise the grinder.
1 2 Figure 51 1. Traction control 1 2 2. Stem , bolt and nut 5. Adjust the traction control so that it rests flush against the reference bar when it is pulled straight back (Figure 51 and Figure 52). G011476 Figure 53 1. Traction rod 2. Jam nut E. Start the machine and set the throttle to about 1/3 open position. WARNING When the machine is running, you could be caught and injured in moving parts or burned on hot surfaces.
Adjusting the Traction Control Neutral Position Hydraulic System Maintenance If the machine creeps forward or backward when the traction control is in neutral and the unit is warm, the return-to-neutral mechanism on the pumps may need to be adjusted; contact you Authorized Service Dealer for repairs. Replacing the Hydraulic Filter Service Interval: Every 200 hours 1. Position machine on a level surface. Adjusting the Tracking of the Traction Control, Full Forward Position 2. Lower the grinder.
• Toro Premium All Season Hydraulic Fluid (refer to your Authorized Toro Dealer for more information) • If either of the above Toro fluids are not available, you may use another Universal Tractor Hydraulic Fluid (UTHF), but they must be only conventional, petrolium-based products. The specifications must fall within the listed range for all of the following material properties and the fluid should meet the listed industry standards.
Checking the Hydraulic Lines Grinder Maintenance Service Interval: Every 100 hours—Check the hydraulic lines for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather, and chemical deterioration and repair if necessary. Replacing the Teeth Service Interval: Before each use or daily—Check the condition of the teeth and rotate or replace any that are worn or damaged. Every 1,500 hours/Every 2 years (whichever comes first)—Replace all moving hydraulic hoses.
Cleaning Storage 1. Lower the grinder. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove dirt and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing.
10. Place a rag over the spark plug hole to catch any oil spray, then use the starter or recoil handle to crank the engine and distribute the oil inside the cylinder. 11. Install the spark plug, but do not install the wire on the spark plug. 12. Charge the battery; refer to Servicing the Battery (page 28). 13. Check and adjust the track tension; refer to Checking and Adjusting the Track Tension (page 30). 14. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 15.
Troubleshooting Problem The starter does not crank. The engine will not start, starts hard, or fails to keep running. Engine loses power. Possible Cause 1. The battery is discharged. 1. Charge the battery or replace it. 2. The electrical connections are corroded or loose. 3. The relay or switch is damaged. 2. Check the electrical connections for good contact. 3. Contact your Authorized Service Dealer. 1. The fuel tank is empty. 1. Fill the fuel tank with gasoline. 2. 3. 4. 5. 2. 3. 4. 5.
g013418 Schematics Electrical Schematic (Rev.
g013419 Hydraulic Schematic (Rev.
Notes: 43
Toro Compact Utility Equipment Warranty A One-Year Limited Warranty Conditions and Products 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.
