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Toro STX-38 Operator's Manual
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Toro STX-38 Operator's Manual

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Original Instructions (EN)
STX-38 Stump Grinder
Model No. 23212—Serial No. 313000001 and Up
Form No. 3377-818 Rev A
*3377-818* A

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  • Page 1 Form No. 3377-818 Rev A STX-38 Stump Grinder Model No. 23212—Serial No. 313000001 and Up *3377-818* A Register at www.Toro.com. Original Instructions (EN)

  • Page 2: Figure 1

    The engine exhaust from this product contains chemicals known to the State of You may contact Toro directly at www.Toro.com for product California to cause cancer, birth defects, and accessory information, help finding a dealer, or to register or other reproductive harm.

  • Page 3: Table Of Contents

    Servicing the Battery..........28 Replacing the Fuses ..........30 Drive System Maintenance .........30 Servicing the Tracks..........30 Figure 2 Cooling System Maintenance ........32 1. Safety alert symbol Servicing the Engine Oil Cooler .......32 Cleaning the Engine Screen........33 Belt Maintenance ............33 This manual uses 2 words to highlight information. Replacing the Pump Drive Belt.........33 Important calls attention to special mechanical information Controls System Maintenance ........34...

  • Page 4: Safety

    Safety – Never refuel or drain the machine indoors. • Check that the operator presence controls, safety switches, and shields are attached and functioning properly. Do not Improper use or maintenance can result in injury. To operate unless they are functioning properly. reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol...
  • Page 5 Make any necessary repairs before restarting. over the edge of a cliff or ditch, or if an edge caves in. • Use only genuine Toro replacement parts to ensure that • Do not operate on wet grass. Reduced traction could original standards are maintained.

  • Page 6: Sound Pressure

    – 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. •...

  • Page 7: Slope Indicator

    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).

  • Page 8: Safety And Instructional Decals

    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.
  • Page 9 115-4020 1. Turn right 3. Reverse 2. Forward 4. Turn left 121–4402 1. Push forward to lower the 3. Pull back to raise the stump grinder stump grinder 2. Move right to move the 4. Move left to move the stump grinder to the right stump grinder to the left 117–2718...
  • Page 10 119-4606 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 6. Tipping/crushing hazard—lower the cutter head when safe distance from the machine; do not operate the grinder operating on slopes.

  • Page 11: Setup

    Setup Product Overview Checking Fluid Levels Before starting the engine for the first time, check the engine oil and hydraulic fluid levels; refer to Checking the Engine Oil Level (page 16) and Checking the Hydraulic Fluid Level (page 36) for more information.
  • Page 12 Throttle Lever Traction Control Move the control forward to increase the engine speed and rearward to decrease speed. Choke Lever Before starting a cold engine, move the choke lever forward. After the engine starts, regulate the choke to keep the engine running smoothly.
  • Page 13 G008131 Figure 11 • To turn left, rotate the traction control counterclockwise (Figure 12). G008132 Figure 12 • To stop, release the traction control (Figure 8). Note: The farther you move the traction control in any direction, the faster the machine will move in that direction. Grinder Control Lever Operate the grinder using the grinder control lever as follows: •...
  • Page 14 Figure 16 Figure 14 Lift/Lower Speed Control You can change the speed the grinder head raises and lowers • To lower the grinder, push the lever forward (Figure 15). 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.

  • Page 15: Specifications

    30-day supply of gasoline. its capabilities. Contact your Authorized Service Dealer or • Do not operate without entire exhaust system in Distributor or go to www.Toro.com for a list of all approved place and in proper working condition. attachments and accessories.

  • Page 16: Checking The Engine Oil Level

    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. • Always place gasoline containers on the ground away from your vehicle before filling.

  • Page 17: Stopping The Machine

    4. Remove the key. Stopping the Machine 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. CAUTION A child or untrained bystander could attempt to operate the machine and be injured.

  • Page 18: Grinding A Stump

    Grinding a Stump DANGER This product is capable of amputating hands and feet. • Stay in the operator's position while the grinder is running and keep away from the grinder. • Keep all bystanders a safe distance from the grinder. •...

  • Page 19: Lifting The Machine

    • 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.

  • Page 20: Maintenance

    Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Check and adjust the track tension. After the first 50 hours • Grease the machine. (grease immediately after every washing.) •...

  • Page 21: Premaintenance Procedures

    Premaintenance Important: The fasteners on the bottom shield are designed to remain on the cover after removal. Procedures Loosen both bolts a few turns so that the shield is loose but still attached, then go back and loosen them until the shield comes free. This will prevent Before opening any of the covers, stop the engine, remove the you from accidentally stripping the bolts free of key, and allow the engine to cool.

  • Page 22: Lubrication

    Lubrication Greasing the Machine Service Interval: Before each use or daily (grease immediately after every washing.) Grease Type: General-purpose grease. 1. Lower the grinder and stop the engine. Remove the key. 2. Clean the grease fittings with a rag. 3. Connect a grease gun to each fitting (Figure 26 through Figure 28).

  • Page 23: Engine Maintenance

    Figure 30 3. Clean the inside of the air cleaner cover with compressed air. Toro Premium Engine Oil is available from your Authorized 4. Gently slide the primary filter out of the air cleaner Toro Dealer. body (Figure 29).
  • Page 24 2. Park the machine so that the rear is slightly lower than WARNING the front to ensure the oil drains completely. Contact with hot surfaces may cause personal 3. Lower the grinder and stop the engine. Remove the key. injury. 4.
  • Page 25 8. Start the engine and drive to a flat area. Check the oil level again. Changing the Engine Oil Filter Service Interval: Every 300 hours Note: Change the engine oil filter more frequently when operating conditions are extremely dusty or sandy. 1.

  • Page 26: Servicing The Spark Plugs

    Servicing the Spark Plugs Service Interval: Every 600 hours—Replace and gap the spark plugs. 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.

  • Page 27: Fuel System Maintenance

    Fuel System 7. Install the fuel line onto the fuel shut-off valve. Slide the hose clamp close to the valve to secure the fuel line. Maintenance 8. Wipe up any spilled fuel. Draining the Fuel Tank Replacing the Fuel Filter Service Interval: Every 150 hours/Yearly (whichever comes DANGER first) (more often in dirty or dusty...

  • Page 28: Electrical System Maintenance

    Electrical System WARNING Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in Servicing the Battery personal injury. • Always Disconnect the negative (black) battery Service Interval: Every 25 hours—Check the battery cable before disconnecting the positive (red) electrolyte level.
  • Page 29 Important: Do not overfill the battery because 4. Then install the negative battery cable and ground wire to the negative (-) battery terminal with a nut, washer electrolyte (sulfuric acid) can cause severe and bolt (Figure 40). Slide the rubber cover over the corrosion and damage to the chassis.

  • Page 30: Replacing The Fuses

    Replacing the Fuses Drive System Maintenance There are 4 fuses in the electrical system. They are under the control panel on the left side (Figure 43). Start Circuit 30 amp Servicing the Tracks Not used 25 amp Cooler fan Circuit 20 amp Headlight (optional) 15 amp...
  • Page 31 Figure 45 Figure 47 1. Stop the machine in on a level surface. 1. Tensioning wheel 2. Stop the engine, lower the grinder, remove the key, and wait for all moving parts to stop before leaving the 6. Begin removing the track at the top of the tensioning operating position.

  • Page 32: Cooling System Maintenance

    Cooling System Maintenance Servicing the Engine Oil Cooler Service Interval: Every 150 hours 1. Lower the grinder. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 48 3. To access and service the oil cooler, remove the top 1.

  • Page 33: Cleaning The Engine Screen

    Cleaning the Engine Screen Belt Maintenance Service Interval: Before each use or daily Replacing the Pump Drive Belt Before each use remove any build-up of grass, dirt or other debris from the engine screen. This will help ensure If the pump drive belt begins to squeal or is cracked, worn, adequate cooling and correct engine speed and will reduce or frayed, replace it.

  • Page 34: Controls System Maintenance

    Controls System 5. Adjust the traction control so that it rests flush against the reference bar when it is pulled straight back Maintenance (Figure 53 and Figure 54). 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.

  • Page 35: Adjusting The Traction Control Neutral Position

    4. If the machine veers to the right, loosen the left jam WARNING nut and adjust the tracking set screw on the front of the When the machine is running, you could traction control (Figure 56). be caught and injured in moving parts or burned on hot surfaces.

  • Page 36: Hydraulic System Maintenance

    Hydraulic System Capacity: 38 L (10 US gallons) 2. Lower the grinder. Use Toro Premium All Season Hydraulic Oil. 3. Stop the engine, remove the key, and wait for all moving 1. Park the machine on a level surface and lower the parts to stop before leaving the operating position.

  • Page 37: Checking The Hydraulic Lines

    10. Fill the hydraulic tank with approximately 38 L (10 US gallons) of Toro Premium All Season Hydraulic Oil; refer to Checking the Hydraulic Fluid Level (page 36). 11. Install the hydraulic filter and filler cap (Figure 59) and torque bolt on top to 21 to 25 N-m (200 to 240 inch-lb).

  • Page 38: Grinder Maintenance

    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 Important: Operating the engine with blocked screens, replace any that are worn or damaged. dirty or plugged cooling fins, and/or cooling shrouds removed, will result in engine damage from overheating.

  • Page 39: Storage

    Storage 12. Check and adjust the track tension; refer to Checking and Adjusting the Track Tension (page 30). 1. Lower the grinder. 13. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 40: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The starter does not crank. 1. The battery is discharged. 1. Charge the battery or replace it. 2. The electrical connections are corroded 2. Check the electrical connections for or loose. good contact. 3. The relay or switch is damaged. 3.

  • Page 41: Schematics

    Schematics g020556 Electrical Schematic (Rev. A)
  • Page 42 g020557 Hydraulic Schematic (Rev. A)
  • Page 43 Notes:...
  • Page 44 Countries Other than the United States or Canada Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor’s service or have difficulty obtaining guarantee information, contact the Toro importer.

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23212

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