Form No. 3429-736 Rev A STX-38 EFI Stump Grinder with Intelli-Sweep Model No. 23214—Serial No. 404320000 and Up Register at www.Toro.com.
Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 illustrates the location of the model and serial numbers on the product. Write the numbers in the space provided. This product complies with all relevant European directives; for details, please see the separate product specific Declaration of Conformity (DOC) sheet.
Contents Replacing the Teeth .......................................... 39 Cleaning .............................................................. 40 Removing Debris from the Machine .................. 40 Storage ................................................................... 41 Troubleshooting ...................................................... 42 Schematics ............................................................. 44 Safety .....................................................................
Safety • Evaluate the terrain to determine what accessories 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 (Figure 2), which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with the instruction may result in personal injury or death. • • DANGER There may be buried utility lines in the work area.
• Ensure that all the drives are in neutral and the • • • • • • • • • • • • • • parking brake is engaged (if applicable) before starting the engine. Start the engine only from the operator's position. Slow down and use extra care on hillsides. Ensure to travel in the recommended direction on hillsides. Turf conditions can affect the stability of the machine. Slow down and use caution when making turns, crossing roads and sidewalks, and when changing directions on slopes.
• Use jack stands to support the components when • Keep all parts in good working condition and all required. hardware tightened. Replace all worn or damaged decals. • Carefully release pressure from components with • Keep all nuts and bolts tight. Keep the equipment stored energy. in good condition. • Keep your hands and feet away from the moving • Never tamper with the safety devices. parts. If possible, do not make adjustments with the engine running. • Keep the machine free of debris buildup.
decal93-7814 93-7814 decal107-9366 107-9366 1. Entanglement hazard, belt—stay away from moving parts; keep all guards and shields in place. 1. Thrown object hazard—keep bystanders a safe distance away from the machine. decal115-2047 115-2047 1. Warning—do not touch the hot surface. decal93-9084 93-9084 1. Lift point/Tie-down point decal121-4402 decal93-9363 121-4402 93-9363 1. Parking brake 3. Unlocked 2. Locked decal100-4650 100-4650 1.
decal130-7580 130-7580 1. Engine—start 5. Engine speed—slow 2. Engine—run 6. Engine indicator light 3. Engine—stop 7. Read the Operator's Manual before starting the engine—1) Ensure that the traction control is in the neutral position; 2) Move the throttle lever to the Fast position, close the choke (if applicable), and do not operate the joystick; 3) Turn the key to start the engine. 4. Engine speed—fast decal133-8062 133-8062 decal137-4869 137-4869 1. Read the Operator’s Manual.
decal115-4020 115-4020 1. Turn right 3. Reverse 2. Forward 4. Turn left decal119-4606 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 away from the machine; do not operate the grinder head while transporting the machine. 6.
Setup Product Overview Checking the Fluid Levels Before starting the engine for the first time, check the engine-oil and hydraulic-fluid levels. Refer to the following sections for more information: • Checking the Engine-Oil Level (page 24) • Checking the Hydraulic-Fluid Level (page 38) Charging the Battery Charge the battery; refer to Charging the Battery (page 30) for more information.
Key Switch Traction Control The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START . Refer to Starting the Engine (page 16). Throttle Lever Move the control forward to increase the engine speed and rearward to decrease the engine speed. g008128 Figure 7 Hour Meter 1. Reference bar 2. Traction control The hour meter displays the number of hours of operation that have been logged on the machine.
• 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 11 • To stop the machine, release the traction control (Figure 7). Note: The farther you move the traction control in any direction, the faster the machine moves in that direction.
• To raise the grinder, pull the lever rearward (Figure 13). g019836 g019837 Figure 15 Lift/Lower Speed Control g019834 Figure 13 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 16). Rotate the dial counter clockwise to increase the speed or rotate it clockwise to reduce the speed. • To lower the grinder, push the lever forward (Figure 14).
Operation Note: Determine the left and right sides of the machine from the normal operating position. Important: Before operating the machine, check the fluid levels, and remove debris from the machine. Ensure that the area is clear of people and debris. You should also know and have marked the locations of all utility lines. Adding Fuel 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.
Recommended Fuel DANGER • For best results, use only clean, fresh (less than In certain conditions during fueling, static electricity can be released, causing a spark that can ignite the fuel vapors. A fire or explosion from fuel can burn you and others and can damage property. 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method). • Ethanol: Gasoline with up to 10% ethanol (gasohol) or 15% MTBE (methyl tertiary butyl ether) by volume is acceptable.
Filling the Fuel Tank Starting the Engine 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the hydraulic lift. 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 17). 1. Move the throttle lever midway between the SLOW and FAST positions (Figure 18). g024908 Figure 18 1. Key 2. g020516 1. Fuel-tank cap 2. Fuel gauge 3.
Driving the Machine Moving a Non-Functioning Machine Use the traction controls to move the machine. The farther you move the traction controls in any direction, the faster the machine moves in that direction. Release the traction controls to stop the machine. Important: Do not tow or pull the machine without first opening the tow valves, or you will damage the hydraulic system. CAUTION When reversing, you may back into stationary objects or over bystanders and cause serious personal injury or death.
Grinding a Stump DANGER This machine is capable of amputating hands and feet. • Stay in the operating position while the machine is running, and keep away from moving parts. • Keep all bystanders a safe distance away from the machine. • Stop the machine immediately if any people or animals enter the work area. g019845 Figure 20 WARNING Grinding a stump throws wood chips, soil and other debris into the air, which could injure you or bystanders and could damage property. 5.
Operating Tips Securing the Machine for Transport • Clean the area of trash, branches, and rocks before operating to prevent equipment damage. Important: Do not operate or drive the machine • Always use full throttle (maximum engine speed) on roadways. 1. when grinding. Park the machine on a level surface, engage the parking brake (if applicable), and lower the hydraulic lift. 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. 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. Check the condition of and clean the tracks. Clean the engine screen.
Pre-Maintenance Procedures 4. Slide the cover forward slightly and pull up to remove the cover (Figure 24). 5. To install the front cover, slide the front cover into place and tighten the 2 bolts that you loosened previously (Figure 24). 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.
Lubrication Removing the Bottom Shield Greasing the Machine 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. Service Interval: Before each use or daily (Grease it immediately after every washing.
Engine Maintenance Servicing the Air Cleaner Service Interval: Every 150 hours—Inspect the primary filter. Every 300 hours—Replace the primary air filter (more often in dusty or sandy conditions). Every 300 hours—Check the inner air filter. Every 600 hours—Replace the inner air filter. g020519 Removing the Filters Figure 29 1. Park the machine on a level surface, engage the parking brake (if applicable), and lower the hydraulic lift. 2. Shut off the engine and remove the key. 3.
Servicing the Primary Filter Servicing the Engine Oil Inspect the primary filter for damage by looking into the filter while shining a bright light on the outside of the filter. Service Interval: Before each use or daily Every 100 hours/Yearly (whichever comes first) Every 200 hours Note: Holes in the filter appear as bright spots. If the filter is dirty, bent, or damaged, replace it. Do not clean the primary filter.
Changing the Engine Oil Note: Dispose of the used oil at a recycling center. 1. Start the engine and let it run 5 minutes. Note: This warms the oil so that it drains better. 2. 3. g247313 4. 5. Park the machine so that the rear is slightly lower than the front to ensure the oil drains completely. Engage the parking brake and lower the hydraulic lift. Shut off the engine and remove the key. Place a pan below the drain hose. Rotate the oil drain valve to allow oil to drain (Figure 33 and Figure 34).
Changing the Engine-Oil Filter 7. Dispose of the used oil at a recycling center 8. 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 35). 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 25). 2. Change the engine-oil filter (Figure 36). g247314 g194610 Figure 35 9. Start the engine and drive to a flat area. Check the oil level again.
Servicing the Spark Plug(s) Checking the Spark Plug(s) Service Interval: Every 500 hours/Yearly (whichever comes first) 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. Make sure that the air gap between the center and side electrodes is correct before installing the spark plug.
Fuel System Maintenance 7. Note: If desired, you can replace the fuel filter at this time; refer to Replacing the Hydraulic Filter (page 38). Draining the Fuel Tank 8. Install the fuel line onto the fuel-shutoff valve. Slide the hose clamp close to the valve to secure the fuel line. 9. Install the bottom shield; refer to Removing the Bottom Shield (page 22). DANGER In certain conditions, fuel is extremely flammable and highly explosive.
Electrical System Maintenance 5. Remove the filter from the fuel lines. 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.
Removing the Battery Charging the Battery 1. Park the machine on a level surface, engage the parking brake, and lower the hydraulic lift. 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 43). 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 45). 1. Park the machine on a level surface, engage the parking brake, and lower the hydraulic lift. 2. Shut off the engine and remove the key. 3. Remove the battery from the machine; Removing the Battery (page 30). 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).
Replacing the Tracks Checking and Greasing the Road Wheels When the tracks are badly worn, replace them. 1. Park the machine on a level surface, engage the parking brake, and lower the hydraulic lift. 2. Shut off the engine and remove the key. 3. Lift/support the side of the unit to be worked on so that the track is 7.6 to 10 cm (3 to 4 inches) off the ground. 4. Back out the tensioning bolt and jam nut (Figure 48). 5. Push the tensioning wheel rearward as far as it will go (Figure 49).
Cooling System Maintenance depleted, clean out all the grease, replace the gasket, and add new grease. 7. Ensure that the road wheel turns smoothly on the bearing. If it is frozen, contact your Authorized Service Dealer to replace the road wheel. 8. Place the greased road wheel cap over the bolt head (Figure 51). 9. Secure the road wheel cap with the snap ring (Figure 51). 10. Repeat steps 5 through 9 for all road wheels. 11.
Belt Maintenance Controls System Maintenance Replacing the Pump-Drive Belt Adjusting the Traction-Control Alignment If the pump drive belt begins to squeal or is cracked, worn, or frayed, replace it. Contact your Authorized Service Dealer for a replacement belt. 1. Park the machine on a level surface, engage the parking brake, and lower the hydraulic lift. 2. Shut off the engine and remove the key. 3. Raise the back of the machine and support it on jack stands.
g004191 Figure 55 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 55 and Figure 56). g011476 Figure 57 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 56 6.
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 machine is warm, you may need to adjust the return-to-neutral mechanism on the pumps; contact your Authorized Service Dealer. WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
is sufficient for 15 to 22 L (4 to 6 US gallons) of hydraulic oil. Order Part 44-2500 from your Authorized Service Dealer. Checking the Hydraulic-Fluid Level 7. Install the cap and filter on the filler neck and torque bolt on top to 21 to 25 N∙m (200 to 240 in-lb). 8. Install the cover plate; refer to Removing the Front Cover (page 21). Replacing the Hydraulic Filter Service Interval: Every 25 hours Refer to Hydraulic Fluid Specifications (page 37) for hydraulic fluid specifications. 1.
6. Place a drain pan capable of holding 38 L (10 US gallons) under the hydraulic tank. Grinder Maintenance 7. Remove the hydraulic tank drain plug and allow the fluid to drain into the pan (Figure 62). 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 63).
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 hydraulic lift. 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 1. Park the machine on a level surface, engage the parking brake, and lower the hydraulic lift. 2. Shut off the engine and remove the key. 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. 9. 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.
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.
Problem Possible Cause Corrective Action The grinder head does not lower or raise. 1. The lift/lower control valve is closed. 1. Turn the control dial counterclockwise to open it. The hydraulic fluid overflows or is very hot. 1. The cooling fan is not functioning. 1. Check the fuse and replace it if necessary.
Schematics g025620 Electrical Schematic (Rev.
g025621 Hydraulic Schematic (Rev.
Notes:
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