Form No. 3447-215 Rev A STX-26 Stump Grinder Model No. 23208—Serial No. 409550000 and Up Model No. 23208G—Serial No. 405300000 and Up Register at www.Toro.com.
Introduction This product complies with all relevant European directives when CE Kit 22368 has been installed; for details, please see the separate product specific Declaration of Conformity (DOC) sheet. 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. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.
Servicing the Air Cleaner .................................. 23 Servicing the Engine Oil.................................... 24 Servicing the Spark Plug(s) .............................. 26 Fuel System Maintenance ................................... 27 Draining the Fuel Tank ...................................... 27 Replacing the Fuel Filter ................................... 28 Electrical System Maintenance ........................... 28 Electrical System Safety ...................................
Safety and Instructional Decals Safety General Safety 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 missing. DANGER There may be buried utility lines in the work area. Digging into them may cause a shock or an explosion. Have the property or work area marked for buried lines and do not dig in marked areas.
decal93-7814 93-7814 decal107-9366 107-9366 1. Entanglement hazard, belt—stay away from moving parts. 1. Thrown object hazard—keep bystanders away from the machine. decal93-9084 93-9084 1. Lift point/Tie-down point decal119-4560 119-4560 decal100-4650 1. Ignition key 100-4650 2. Engine—start 1. Crushing hazard of hand—keep bystanders away. 3. Engine—run 2. Crushing hazard of foot—keep bystanders away. 4. Engine—stop 5. Fast 6.
decal119-4561 119-4561 1. Push forward to lower the stump grinder. 2. Move right to move the stump grinder to the right. 3. Pull back to raise the stump grinder. decal137-3875 137-3875 4. Move left to move the stump grinder to the left. 5. 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. 6.
decal119-4606 119-4606 5. Explosion and electric shock hazard—do not dig in areas with buried utility lines; contact local power organizations before digging. 1. Warning—read the Operator's Manual. 2. Cutting/dismemberment hazard; grinder—keep bystanders 6. Tipping/crushing hazard—lower the cutter head when away from the machine; do not operate the grinder head while operating on slopes. transporting the machine. 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. 1 Installing the Grinder Control Lever Parts needed for this procedure: 1 Grinder control lever 1 Jam nut 2. Thread the grinder control lever into the receptacle on the control panel (Figure 3). 3.
Control Panel Product Overview g025098 Figure 5 g018769 Figure 4 1. Key switch 5. Traction control 6. Reference bar 7. Grinder control/hydraulic-lift lever 1. Reverse safety plate 4. Battery 7. Track 2. Throttle lever 3. Choke lever 2. Control panel 5. Tie-down/lift point 8. Chip shield 4. Hour meter 3. Engine 6. Parking-brake lever (machines with CE kit only) 9. Grinder Key Switch The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START .
Reference Bar Traction Control When driving the machine, use the reference bar as a handle and a leverage point for controlling the machine. To ensure smooth, controlled operation, do not take both hands off the reference bar while operating the machine. Parking-Brake Lever (Machines with CE Kit Only) g008128 Figure 7 To engage the parking brake, lift the lever upward. To disengage the parking brake, push the lever downward. 1. Reference bar 2.
Grinder Control/Hydraulic-Lift Lever • To turn right, rotate the traction control clockwise (Figure 10). Operate the grinder using the grinder control lever as follows: • To start the grinder (Figure 12), squeeze the trigger and then press the red button on the top of the lever. Once the grinder has started, you can release the red button. • To stop the grinder (Figure 12), release the trigger g008131 Figure 10 for more than a half second.
• To raise the grinder, pull the lever rearward (Figure 13). g243266 g013626 Figure 15 g013623 Figure 13 • To lower the grinder, push the lever forward (Figure Specifications 14). Note: Specifications and design are subject to change without notice. Width 84 cm (33 inches) Length 198.5 cm (78 inches) Height 113 cm (44.
Operation • Do not remove the fuel cap or fill the fuel tank Note: Determine the left and right sides of the machine from the normal operating position. • • Before Operation • Before Operation Safety • General Safety • Have the property or work area marked for buried • • lines and other objects, and do not dig in marked areas; note the location of unmarked objects and structures, such as underground storage tanks, wells, and septic systems. Inspect the area where you will use the equipment.
Add the amount of fuel stabilizer/conditioner to fresh fuel as directed by the fuel-stabilizer manufacturer. During Operation Filling the Fuel Tank During Operation Safety 1. Park the machine on a level surface, engage the parking brake (if equipped), and lower the grinder. 2. Shut off the engine, remove the key, and allow the engine to cool. 3. Clean around the fuel-tank cap and remove it (Figure 16).
• • • – Engage the parking brake. – Shut off the engine and remove the key. Check for overhead clearance (i.e., electrical wires, branches, and doorways) before driving under any objects and do not contact them. Do not operate the machine when there is the risk of lightning. Use only Toro-approved attachments and accessories. a safe distance between the machine and any hazard. • If the machine starts to tip, let go of the controls and step away from the machine.
Grinding a Stump throttle position for 2 to 5 minutes before moving the throttle to the FAST position. Note: If the outdoor temperature is below freezing, store the machine in a garage to keep it warmer and aid in starting. 1. Start the engine, raise the grinder, set the throttle lever to the FAST position, and move the machine to the stump to be ground. 2.
10. • Clean debris from the drives, mufflers, and engine Clean debris from the hydraulic lift, drives, mufflers, and engine after each use; refer to Removing Debris from the Machine (page 40). to help prevent fires. Clean up oil or fuel spills. • Keep all parts in good working condition and all hardware tightened. Operating Tips • Use care when loading or unloading the machine into a trailer or truck. • Clean the area of trash, branches, and rocks before operating to prevent equipment damage.
Securing the Machine for Transport Lifting the Machine You can lift the machine using the tie-down/lift loops as lift points (Figure 21 and Figure 22). Important: Do not operate or drive the machine on roadways. Use care when loading or unloading the machine into a trailer or truck. 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. CAUTION If you leave the key in the key switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the key switch and disconnect the wires from the spark plugs before you do any maintenance. Set the wires aside so that they do not accidentally contact the spark plugs.
Maintenance Service Interval Maintenance Procedure Every 400 hours • Change the hydraulic fluid. Every 500 hours • Replace the safety air filter (more often in dirty or dusty conditions). Every 1,500 hours • Replace all moving hydraulic hoses. Yearly or before storage • Check and adjust the track tension. • Touch up chipped paint. Important: Refer to your engine owner’s manual for additional maintenance procedures.
Pre-Maintenance Procedures 6. Removing the Cover Plate Removing the Bottom Shield Important: The fasteners on the covers of this machine are designed to remain on the cover after removal. Loosen all fasteners on each cover a few turns so that the cover is loose but still attached, then go back and loosen them until the cover comes free. This prevents you from accidentally stripping the bolts free of the retainers. 1.
Lubrication Greasing the Machine Service Interval: Before each use or daily (Grease immediately after every washing.) Grease Type: General-purpose grease 1. Park the machine on a level surface and lower the grinder. 2. Shut off the engine and remove the key. 3. Clean the grease fittings with a rag. 4. Connect a grease gun to each fitting (Figure 25 and Figure 26). 5. Pump grease into the fittings until grease begins to ooze out of the bearings (approximately 3 pumps). 6.
Engine Maintenance 5. Gently slide the primary filter out of the air-cleaner body (Figure 27). Note: Avoid knocking the filter into the side of Engine Safety the body. • Shut off the engine before checking the oil or 6. adding oil to the crankcase. • Do not change the engine governor setting or Remove the safety filter only if you intend to replace it. Important: Do not attempt to clean the overspeed the engine. safety filter. If the safety filter is dirty, then the primary filter is damaged.
Servicing the Engine Oil Service Interval: After the first 8 hours—Change the engine oil. Before each use or daily—Check the engine-oil level. g242254 Every 100 hours—Change the engine oil. Every 200 hours—Change the engine-oil filter. Engine-Oil Specifications Note: Change the oil more frequently when the operating conditions are extremely dusty or sandy. Oil Type: Detergent oil (API service SF, SG, SH, or SJ) Crankcase Capacity: 2.1 L (71 fl oz) with the filter removed; 1.
Changing the Engine Oil Note: Dispose of the used oil at a recycling center. 1. Start the engine and let it run for 5 minutes. Note: This warms the oil so that it drains better. 2. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 3. Shut off the engine and remove the key. 4. Change the oil as shown in (Figure 30). g242255 g194610 Figure 31 g027734 Figure 30 5.
Changing the Engine-Oil Filter Servicing the Spark Plug(s) 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 25). Service Interval: Every 100 hours 2. Change the engine-oil filter (Figure 32). Make sure that the air gap between the center and side electrodes is correct before installing the spark plug(s). Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.
Checking the Spark Plug(s) Fuel System Maintenance Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, or cracks. DANGER In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. If you see light brown or gray on the insulator, the engine is operating properly.
Replacing the Fuel Filter Electrical System Maintenance Service Interval: Every 200 hours 1. 2. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. Electrical System Safety Shut off the engine and remove the key. • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last.
Removing the Battery Charging the Battery 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3. Lift the black rubber cover on the negative cable. Disconnect the negative battery cable from the negative (-) battery terminal (Figure 38). WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery.
Cleaning the Battery Replacing the Fuses Note: Keep the terminals and the entire battery case clean, because a dirty battery discharges slowly. There are 4 fuses in the electrical system. They are under the control panel on the left side (Figure 40). 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3. Remove the battery from the machine; Removing the Battery (page 29). 4.
Checking and Adjusting the Track Tension Drive System Maintenance Service Interval: After the first 50 hours Every 100 hours Servicing the Tracks To check the tension of each track, place 20.4 kg (45 lb) on the track midway between the front road wheel and the drive wheel. The track should flex no more than 0.6 to 1 cm (1/4 to 3/8 inch).
is applied to the track span. Adjust the torque on the tensioning bolt as needed. 6. Tighten the jam nut. 7. Tighten the clamp bolts and torque to 102 N∙m (75 ft-lb). Replacing the Tracks When the tracks are badly worn, replace them. 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3. Lift and support the side of the unit to be worked on so that the track is 7.
Checking and Greasing the Road Wheels Belt Maintenance Service Interval: Every 250 hours Replacing the Pump-Drive Belt 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3. Remove the tracks; refer to Replacing the Tracks (page 32). 4. Remove the snap ring and cap from a road wheel (Figure 46). If the pump drive belt begins to squeal or is cracked, worn, or frayed, replace it.
12. Torque the pump bolts to 68 N∙m (50 ft-lb). 13. Install the bottom shield. Controls System Maintenance Adjusting the Traction-Control Alignment The factory adjusts the traction 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.
g004191 Figure 49 1. Traction control 5. 2. Stem, bolt, and nut Adjust the traction control so that it rests flush against the reference bar when it is pulled straight back (Figure 49 and Figure 50). g011476 Figure 51 1. Traction rod E. 2. Jam nut Start the machine and set the throttle to about the 1/3 open position. WARNING When the machine is running, you could be caught and injured in moving parts or burned on hot surfaces. g004192 Figure 50 6.
Adjusting the Traction-Control Neutral Position If the machine creeps forward or backward when the traction control is in neutral and the machine is warm, you may need to adjust the return-to-neutral mechanism on the pumps; contact your Authorized Service Dealer. Adjusting the Traction-Control Forward Position If the machine does not drive straight when you hold the traction control forward against the reference bar, complete the following procedure: 1.
Hydraulic System Maintenance Viscosity index, ASTM D2270 140 to 152 Pour Point, ASTM D97 -37 to -43°C (-35 to -46°F) Industry Standards API GL-4, AGCO Powerfluid 821 XL, Ford New Holland FNHA-2-C-201.00, Kubota UDT, John Deere J20C, Vickers 35VQ25 and Volvo WB-101/BM Hydraulic System Safety • Seek immediate medical attention if fluid is injected • • • • into skin. Injected fluid must be surgically removed within a few hours by a doctor.
Replacing the Hydraulic Filter Service Interval: Every 200 hours 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine and remove the key. 3. Remove the top cover. 4. Remove and discard the old filter (Figure 55). g007839 Figure 54 1. Filler-neck cap 2. Hydraulic-fluid filter 6. If the level is low, add fluid until it is visible in the glass bubble. 7.
Grinder Maintenance the hydraulic fluid to drain from the hose and tank into the pan. Replacing the Teeth Service Interval: Before each use or daily—Check the condition of the teeth; rotate or replace any that are worn or damaged and torque the nuts for all teeth. Due to the high amount of wear placed on the teeth, you need to rotate and replace them periodically (Figure 57). g007840 g034325 Figure 56 Figure 57 1. Hose 2. Hydraulic-tank fitting 1. Sharp tooth 3. Hose clamp 8.
Cleaning Removing Debris from the Machine Service Interval: After each use Important: Operating the engine with blocked screens, dirty or plugged cooling fins, and/or cooling shrouds removed will result in engine damage from overheating. g019862 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the grinder. 2. Shut off the engine, remove the key, and wait for the engine to cool. 3. Wipe away debris from the air cleaner. 4.
Storage F. Start and run the engine until it does not start again. Storage Safety G. Dispose of fuel properly. Recycle as per local codes. • Allow the machine to cool before storing. • Do not store the machine or fuel near flames. Important: Do not store fuel containing stabilizer/conditioner longer than the duration recommended by the fuel-stabilizer manufacturer. Storage 9. Service Interval: Before each use or daily Yearly or before storage 10.
Troubleshooting Problem The starter does not crank. The engine does not start, starts hard, or fails to keep running. The engine loses power. Possible Cause Corrective Action 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 tank with fresh fuel. 2. 3. 4. 5.
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