Form No. 3394-651 Rev A STX-38 EFI Stump Grinder with Intelli-Sweep Model No. 23214—Serial No. 315000001 and Up G024905 Register at www.Toro.com.
Introduction 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. 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.
Servicing the Battery...............................................28 Replacing the Fuses ................................................30 Drive System Maintenance .........................................31 Servicing the Tracks................................................31 Cooling System Maintenance ......................................33 Cleaning the Engine Screen......................................33 Belt Maintenance ......................................................
Operation Safety • Never run an engine in an enclosed area. • Only operate in good light, keeping away from holes and Improper use or maintenance 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.
Safe Handling of Fuels • Avoid starting or stopping on a slope. If the machine • To avoid personal injury or property damage, use • • • • • • • • • • • • • extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Extinguish all cigarettes, cigars, pipes, and other sources of ignition. Use only an approved fuel container. Never remove fuel cap or add fuel with the engine running. Allow engine to cool before refueling. Never refuel the machine indoors.
– Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Protect your face, eyes, and clothing when working with a battery. – Battery gases can explode. Keep cigarettes, sparks and flames away from the battery. • Keep your body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic fluid. Use cardboard or paper to find hydraulic leaks; never use your hands.
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 16 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 16 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. 93–6686 1. Hydraulic oil 2. Read the Operator's Manual. 93-9363 1. Parking brake 3. Unlocked 2. Locked 93-7321 1. Cutting/dismemberment hazard of hands and feet, rotating knives/blades—stay away from moving parts. 93-7814 100-4650 1. Entanglement hazard, belt—stay away from moving parts. 1.
115-4020 1. Turn right 3. Reverse 2. Forward 4. Turn left 121–4402 1. Push forward to lower the stump grinder 3. Pull back to raise the stump grinder 2. Move right to move the stump grinder to the right 4. Move left to move the stump grinder to the left 117–2718 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance from the battery. 2. No fire, open flame, or smoking. 7.
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; grinder—keep bystanders a safe distance from the machine; do not operate the grinder 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 Product Overview 1 Checking Fluid Levels 2 3 Before starting the engine for the first time, check the engine oil and hydraulic fluid levels; refer to Checking the Engine-oil Level (page 24) and Checking the Hydraulic-fluid Level (page 36) for more information. 4 Charging the Battery Charge the battery; refer to Charging the Battery (page 30) for more information.
Throttle Lever Move the control forward to increase the engine speed and rearward to decrease speed. Hour Meter When the engine is off, the hour meter displays the number of hours of operation that have been logged on the machine. Figure 9 Reference Bar • To move rearward, move the traction control rearward When driving the machine, use the reference bar as a handle and a leverage point for controlling the traction control.
Grinder Control Lever Operate the grinder using the grinder control lever as follows: • To start the grinder (Figure 13), press the red button on the top of the lever, then squeeze the trigger. Once the grinder has started, you can release the red button. • To stop the grinder (Figure 13), release the trigger for more than a half second. Note: If you are operating the grinder and momentarily release the trigger (for less than a half second) the grinder will continue operation.
Figure 16 Lift/Lower Speed Control You can change how quickly the grinder head raises and lowers using the lift/lower speed control, located under the right side of the control panel (Figure 17). Rotate the dial counter clockwise to increase the speed or clockwise to reduce the speed.
Operation DANGER 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. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills. • Never fill the fuel tank inside an enclosed trailer. • Do not fill the fuel tank completely full. Add gasoline to the fuel tank until the level is 6 to 13 mm (1/4 to 1/2 inch) below the bottom of the filler neck.
Using Stabilizer/Conditioner Starting and Stopping the Engine Use a fuel stabilizer/conditioner in the machine to keep gasoline fresh during storage of 90 days or less. For longer storage it is recommended that the fuel tank be drained. Starting the Engine Important: Do not use fuel additives containing methanol or ethanol. 1. Move the throttle lever midway between the Slow and Fast positions (Figure 19). Add the correct amount of gas stabilizer/conditioner to the gas.
Grinding a Stump off. This helps cool the engine before it is stopped. In an emergency, the engine may be stopped immediately. DANGER 4. Remove the key. This product is capable of amputating hands and feet. Stopping the Machine • Stay in the operating position while the grinder is running, and keep away from the grinder. To stop the machine, release the traction control, move the throttle lever to slow (turtle), lower the grinder to the ground, stop the engine, and remove the key.
Figure 22 Figure 21 1. Front tie-down loop 5. Lower the grinder about an inch and swing it back over the stump. 6. Repeat step 5 until you have reached ground level. 7. Raise the grinder so that it is about an inch below the top of the remaining stump, move the machine forward a few inches, and repeat steps 4 through 6 until you have ground away the entire stump.. 8.
Operating Tips • Clean the area of trash, branches and rocks before operating to prevent equipment damage. • Always use full throttle (maximum engine speed) when grinding. • Cut the edges of the stump for more efficient grinding. Once your cutting swath is close to 1/4 of the wheel diameter (Figure 21), lift the grinder, move forward and begin cutting on the edge again.
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 50 hours • Check and adjust the track tension. Before each use or daily • • • • • • Grease the machine (grease it immediately after every washing.) Check the engine-oil level. Clean the engine screen. Check the condition of the teeth and rotate or replace any that are worn or damaged.
WARNING If the machine has been running, both the cover and the muffler under the cover will be hot and can cause severe burns if you touch them. Allow the machine to cool before removing the cover. 2. Loosen the 2 screws securing the front cover to the machine (Figure 24). 1 Figure 25 1. Bottom shield 2. Bolts 3. Pull the shield back and out of the machine. Installing the Bottom Shield 1. Lower the grinder, stop the engine, and remove the key. 2. Slide the bottom shield into the machine (Figure 25).
Lubrication Greasing the Machine Service Interval: Before each use or daily (grease it immediately after every washing.) Grease Type: General-purpose grease 1. Lower the grinder, stop the engine, and remove the key. 2. Clean the grease fittings with a rag. 3. Connect a grease gun to each fitting (Figure 26 through Figure 28). Figure 28 4. Pump grease into the fittings until grease begins to ooze out of the bearings (approximately 3 pumps). 5. Wipe up any excess grease.
Engine Maintenance 7. Inspect the primary filter 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. If the filter is damaged, discard it. Servicing the Air Cleaner Service Interval: Every 150 hours—Inspect the primary filter. Every 300 hours/Yearly (whichever comes first)—Replace the primary air filter (more often in dusty or sandy conditions). Every 300 hours—Check the inner air filter.
Checking the Engine-oil Level Changing the Engine Oil Service Interval: Before each use or daily Service Interval: Every 100 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions). Note: Check the oil when the engine is cold. Note: Dispose of the used oil at a recycling center. WARNING 1. Start the engine and let it run five minutes. This warms the oil so it drains better. Contact with hot surfaces may cause personal injury. 2.
7. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 34). 1 3 5 1 2 3 4 2 4 5 6 G008796 Figure 34 3/4 G015198 8. Start the engine and drive to a flat area. Check the oil level again. Figure 35 Important: Thread the oil filter on until the gasket touches the engine and then turn it an extra 3/4 turn.
Servicing the Spark Plugs Installing the Spark Plugs Service Interval: Every 600 hours—Replace and gap the spark plugs. Tighten the spark plugs to 27 N-m (20 ft-lb). Make sure the air gap between the center and side electrodes is correct before installing the spark plugs. Use a spark plug wrench for removing and installing the spark plugs and a gapping tool/feeler gauge to check and adjust the air gap. Install new spark plugs at the indicated interval.
Fuel System Maintenance 10. Wipe up any spilled fuel. Note: The fuel-shutoff valve is also accessible through the frame, behind the battery (Figure 40). Draining the Fuel Tank DANGER 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. Do this outdoors in an open area. Wipe up any gasoline that spills.
Electrical System Maintenance 6. Install a new filter and move the hose clamps close to the filter. 7. Turn the fuel-shutoff valve to the open position. 8. Check for fuel leaks and repair if needed. Servicing the Battery 9. Wipe up any spilled fuel. Service Interval: Every 25 hours—Check the battery electrolyte level. Servicing the High-pressure Fuel Filter Always keep the battery clean and fully charged. Use a paper towel to clean the battery case.
4. Then install the negative battery cable and ground wire to the negative (-) battery terminal with a nut, washer and bolt (Figure 42). Slide the rubber cover over the post. 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. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable.
Replacing the Fuses Important: Do not overfill the battery because electrolyte (sulfuric acid) can cause severe corrosion and damage to the chassis. There are 4 fuses in the electrical system. They are under the control panel on the left side (Figure 45). 5. Wait five to ten minutes after filling the battery cells. Add distilled water, if necessary, until the electrolyte level is up to the Upper line (Figure 43) on the battery case.
Drive System Maintenance Servicing the Tracks Cleaning the Tracks Figure 47 Service Interval: After each use 1. Stop the machine in on a level surface. Check the tracks for excessive wear and clean them periodically. If the tracks are worn, replace them. 2. Stop the engine, lower the grinder, remove the key, and wait for all moving parts to stop before leaving the operating position. 1. Lower the grinder. 2.
Figure 49 1. Tensioning wheel Figure 50 6. Begin removing the track at the top of the tensioning wheel, peeling it off of the wheel while rotating the track forwards. 1. Road wheels 3. Track guide bolts (only two shown) 2. Lower track guide 7. When the track is off of the tensioning wheel, remove it from the machine (Figure 49). 3. Remove the snap ring and cap from a road wheel (Figure 51). 8.
Cooling System Maintenance 10. Install the tracks; refer to Replacing the Tracks (page 31). Cleaning the Engine Screen Service Interval: Before each use or daily Before each use remove any build-up of grass, dirt or other debris from the engine screen. This will help ensure adequate cooling and correct engine speed and will reduce the possibility of overheating and mechanical damage to the engine.
Belt Maintenance Controls System Maintenance Replacing the Pump Drive Belt 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.
5. Adjust the traction control so that it rests flush against the reference bar when it is pulled straight back (Figure 54 and Figure 55). WARNING When the machine is running, you could be caught and injured in moving parts or burned on hot surfaces. Stay away from pinch points, moving parts, and hot surfaces when adjusting the running machine. Figure 55 F. Have a helper hold the traction control tight to the reference bar in reverse. G.
Hydraulic System Maintenance 4. If the machine veers to the right, loosen the left jam nut and adjust the tracking set screw on the front of the traction control (Figure 57). Checking the Hydraulic-fluid Level Service Interval: Every 25 hours Hydraulic System Capacity: 38 L (10 US gallons) Use Toro Premium All Season Hydraulic Oil. The reservoir is filled at the factory with approximately 38 L (10 US gallons) of high-quality hydraulic fluid.
High Viscosity Index/Low Pour Point Anti-wear Hydraulic Fluid, ISO VG 46 Material Properties: Viscosity, ASTM D445 cSt @ 40°C (104°F) 44 to 48 cSt @ 100°C (212°F) 7.9 to 9.
Changing the Hydraulic Fluid Checking the Hydraulic Lines Service Interval: Every 400 hours/Yearly (whichever comes first) 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. 1. Position the machine on a level surface. 2. Lower the grinder. 3. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
Grinder Maintenance Cleaning Replacing the Teeth Removing Debris from the Machine Service Interval: Before each use or daily—Check the condition of the teeth and rotate or replace any that are worn or damaged. Important: Operating the engine with blocked screens, dirty or plugged cooling fins, and/or cooling shrouds removed, will result in engine damage from overheating. Due to the high amount of wear placed on the teeth, you will need to rotate and replace them periodically. 1. Lower the grinder. 2.
Storage 12. Check and adjust the track tension; refer to Checking and Adjusting the Track Tension (page 31). 13. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 1. Lower the grinder. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 14. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 3.
Troubleshooting Problem The starter does not crank. The engine will not start, starts hard, or fails to keep running. 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 fuel tank with gasoline. 2.
Schematics Electrical Schematic (Rev.
Hydraulic Schematic (Rev.
Notes: 44
Notes: 45
Notes: 46
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The Toro Warranty A limited warranty (see warranty periods below) SWS Tree Care 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 Products listed below to be free from defects in materials or workmanship. Not all product failures or malfunctions that occur during the warranty period are defects in materials or workmanship.
