Toro 74390 Operator's Manual
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Toro 74390 Operator's Manual

Toro 74390 Operator's Manual

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Original Instructions (EN)
TimeCutter
Mower
Model No. 74390—Serial No. 312000001 and Up
Form No. 3371-734 Rev A
®
ZS 4200TF Riding
*3371-734* A

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  • Page 1 Form No. 3371-734 Rev A TimeCutter ® ZS 4200TF Riding Mower Model No. 74390—Serial No. 312000001 and Up *3371-734* A Register at www.Toro.com. Original Instructions (EN)

  • Page 2: Introduction

    You are responsible for operating the product properly and safely. WARNING You may contact Toro directly at www.Toro.com for product and accessory information, help finding a dealer, or to register CALIFORNIA your product.

  • Page 3: Table Of Contents

    Contents Schematics ..............46 Introduction ..............2 Safety ................4 Safe Operating Practices........... 4 Toro Riding Mower Safety ........6 Slope Indicator ............7 Safety and Instructional Decals ......... 8 Product Overview ............13 Controls ...............14 Operation ..............15 Think Safety First ...........15 Before Starting............17...

  • Page 4: Safety

    In these instances, others from serious injury. Toro has refined the statement to convey the meaning of the • Always follow the recommendations for any application standard while better matching the product this Operator's of counterweights.
  • Page 5 A hitch kit is available for this machine and can be obtained • Keep the machine free of grass, leaves, or other debris by contacting an Authorized Toro Dealer. Do not tow build-up. Clean up oil or fuel spillage fuel soaked debris. without first installing this manufacturer approved hitch. The Allow the machine to cool before storing.

  • Page 6: Toro Riding Mower Safety

    • Maintain or replace safety and instruction decals as necessary. • Use only genuine Toro replacement parts to ensure that original standards are maintained. Toro Riding Mower Safety The following list contains safety information specific to Toro products or other safety information that you must know that may not be included in the ANSI standards.

  • Page 7: Slope Indicator

    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 15 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 15 degrees. Fold along the appropriate line to match the recommended slope.

  • 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. 93-7009 1. Warning—don't operate the mower with the deflector up or removed;...
  • Page 9 119-8814 1. Parking position 4. Neutral 2. Fast 5. Reverse 3. Slow 121-2989 1. Bypass lever position for 2. Bypass lever position for pushing the machine operating the machine 119-8815 Manufacturer's Mark 1. Parking position 4. Neutral 1. Indicates the blade is identified as a part from the original 2.
  • Page 10 120-5468 1. Low speed 2. High speed...
  • Page 11 121-0772 1. Fast 4. Choke 2. Continuous variable setting 5. Power take-off (PTO), Blade control switch 3. Slow...
  • Page 12 120-2239 1. Warning—read the Operator's Manual. 5. Warning—do not use split ramps, use a full ramps when transporting machine. 2. Warning—read the instructions before servicing or performing 6. Loss of traction/control hazard, slopes—loss of traction/control maintenance; move the motion control levers to the park on a slope, disengage the blade control switch (PTO), (brake) position, remove the ignition key and disconnect the proceed off the slope slowly.

  • Page 13: Product Overview

    Product Overview g017641 Figure 4 1. Deflector 4. Height of cut lever 7. Footrest 10. Engine 2. Rear drive wheel 5. Operator seat 8. Fuel tank cap 11. Engine guard (certain models only) 3. Motion control levers 6. Smart Speed lever 9.

  • Page 14: Controls

    Controls Motion Control Levers and Parking Brake Position Become familiar with all of the controls inFigure 4 andFigure 5 before you start the engine The motion control levers are speed sensitive controls of and operate the machine. independent wheel motors. Moving a lever forward or backward turns the wheel on the same side forward or in reverse;...

  • Page 15: Operation

    Height-of-Cut Lever Operation The height of cut lever allows the operator to lower and Note: Determine the left and right sides of the machine raise the deck from the seated position. When the lever is from the normal operating position. moved up, toward the operator the deck is raised from the ground and when moved down, away from the operator it is lowered toward the ground.

  • Page 16: Fuel Safety

    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: Before Starting

    The safety interlock system also is designed to stop the engine whenever the control levers are out of the park position and you rise from the seat. Before Starting Recommended Fuel • For best results, use only clean, fresh, unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method).

  • Page 18: Operating The Blades

    attempts. Failure to follow these instructions can damage the starter motor. Figure 12 1. Throttle 2. Blade control switch—Off position g017700 4. Pull up on the Choke control before starting a cold Figure 14 engine (Figure 13). 1. Control panel 4.

  • Page 19: Testing The Safety Interlock System

    1. While sitting on the seat, with the control levers in park position, and move the blade control switch to On. Try starting the engine; the engine should not crank. 2. While sitting on the seat, move the blade control switch to Off.
  • Page 20 WARNING Removing your hands from the motion control levers while the machine is in motion can result in a loss of control causing harm to you or bystanders. Always stop the machine and move the motion control levers to the park position before adjusting the Smart Speed Control System.

  • Page 21: Stopping The Machine

    G008953 Figure 20 g018668 Figure 21 To go straight, apply equal pressure to both motion 1. Height-of-cut lever 3. 4.5 inch (115 mm), control levers (Figure 20). Transport position 2. Height-of-cut positions To turn, release the pressure on the motion control lever toward the direction you want to turn.

  • Page 22: Adjusting The Motion Control Levers

    Adjusting the Motion Control 3. Locate the bypass levers on the frame on both sides of the engine. Levers 4. Move the bypass levers forward through the key hole and down to lock them in place as shown inFigure 24 . Adjusting the Height Ensure this is done for each lever.

  • Page 23: Converting To Side Discharge Mode

    DANGER Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. Contact with rotating mower blade(s) and thrown debris will cause injury or G018014 death. •...

  • Page 24: Operating Tips

    10. For optimum performance in side discharge period, first mow at a high cutting height; then mow again mode, install the side discharge blades (Toro two days later at a lower height setting. part no. 110-6568-03) as described in the Installing the Blades (page 37) section.

  • Page 25: 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 • Change the engine oil. After the first 8 hours • Check the safety interlock system. •...

  • Page 26: Premaintenance Procedures

    Premaintenance Lubrication Procedures Greasing the Bearings Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Make sure the motion control levers are locked in the park Grease Type: No. 2 General Purpose Lithium Base Grease position. Lift the seat forward. 1.

  • Page 27: Engine Maintenance

    Engine Maintenance Important: Never clean the paper element with pressurized air or liquids, such as solvent, gas, or kerosene. Replace the paper element if it is Servicing the Air Cleaner damaged or cannot be cleaned thoroughly. Note: Service the air cleaner more frequently (every few Servicing the Engine Oil hours) if operating conditions are extremely dusty or sandy.

  • Page 28: Changing The Engine Oil

    4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position (Figure 33). G014971 Figure 34 G008792 Figure 33 Changing the Engine Oil Service Interval: After the first 8 hours—Change the engine oil.

  • Page 29: Servicing The Spark Plug

    4. 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). G008796 Figure 35 G008748 Figure 36 Changing the Engine Oil Filter Note: Ensure the oil filter gasket touches the engine and then an extra 3/4 turn is completed.

  • Page 30: Cleaning The Cooling System

    Installing the Spark Plug Tighten the spark plug(s) to 16 ft-lb (22 N-m). Figure 37 Note: Due to the deep recess around the spark plug, blowing out the cavity with compressed air is usually 16 ft-lb the most effective method for cleaning. The spark plug 22 N-m is most accessible when the blower housing is removed for cleaning.

  • Page 31: Fuel System Maintenance

    Fuel System 4. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 40). Maintenance 5. Remove the filter from the fuel lines. 6. Install a new filter with the flow direction arrow coming DANGER from the fuel tank and pointing to the engine.

  • Page 32: Electrical System Maintenance

    Electrical System 5. Slide the rubber cover up the positive (red) cable. Disconnect the positive (red) cable from the battery Maintenance post (Figure 41). Retain all fasteners. 6. Remove the battery hold-down (Figure 41) and lift the battery from the battery tray. WARNING CALIFORNIA Proposition 65 Warning...

  • Page 33: Servicing The Fuses

    Figure 42 1. Positive battery post 3. Red (+) charger lead G014921 2. Negative battery post 4. Black (-) charger lead Figure 43 1. Main-30 amp 2. Charge circuit-25 amp Note: Do not run the machine with the battery disconnected, electrical damage may occur. 4.

  • Page 34: Drive System Maintenance

    Drive System 2. Rotate the shaft forward to release the brake. Maintenance Checking the Tire Pressure Service Interval: Every 25 hours—Check tire pressure. Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut. Check the pressure at the valve stem (Figure 44).

  • Page 35: Mower Maintenance

    If a blade is damaged or worn, replace 2. Curved area 4. Damage it immediately with a genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand. Checking for Bent Blades...

  • Page 36: Removing The Blades

    The blades must be replaced if a solid object is hit, if the blade is out of balance, or the blade is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards.

  • Page 37: Leveling The Mower Deck

    Leveling the Mower Deck Check to ensure the mower deck is level any time you install the mower or when you see an uneven cut on your lawn. The mower deck must be checked for bent blades prior to leveling; any bent blades must be removed and replaced. Refer to the Checking for Bent Blades procedure before continuing.
  • Page 38 6. Move to the left side of the machine. Loosen, but do 2. Move the motion control levers outward to the park not remove, the rear locking nut on the hanger bracket position, stop the engine, remove the key, and wait for (Figure 55).

  • Page 39: Removing The Mower

    [1-1/2 inch (38 mm)]. and hanger brackets clear of the rear lift rod and lower 4. Using a spring removal tool, (Toro part no. 92-5771), the mower carefully to the ground (Figure 59 and remove the idler spring from the deck hook to remove...

  • Page 40: Installing The Mower

    5. Route the new belt around the engine pulley and mower pulleys (Figure 60). 6. Using a spring removal tool, (Toro part no. 92-5771), install the idler spring over the deck hook and placing tension on the idler pulley and mower belt (Figure 60).
  • Page 41 g017618 Figure 62 1. Rod and spring assembly 3. Rod, short end, moved installed behind mower bracket 2. Loop end of the spring 4. Short end, retained by installed into the notch in mower bracket. the deflector bracket 5. Secure the rod and spring assembly by twisting it so the short end of the rod can be placed behind the front bracket welded to the deck (Figure 62).

  • Page 42: Cleaning

    Cleaning 8. Run the machine and mower blades again for one to three minutes to remove excess water. 9. Turn off the mower blades. Washing the Underside of the Mower WARNING A broken or missing washout fitting could Service Interval: Before each use or daily—Clean the mower housing.

  • Page 43: Storage

    Storage 14. Check the condition of the drive and mower belts. 15. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is worn or damaged. Cleaning and Storage 16. Paint all scratched or bare metal surfaces. Paint is 1.

  • Page 44: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The engine overheats. 1. The engine load is excessive. 1. Reduce ground speed. 2. The oil level in the crankcase is low. 2. Add oil to the crankcase. 3. The cooling fins and air passages 3.
  • Page 45 Problem Possible Cause Corrective Action There is abnormal vibration. 1. The engine mounting bolts are loose. 1. Tighten the engine mounting bolts. 2. The engine pulley, idler pulley, or blade 2. Tighten the appropriate pulley. pulley is loose. 3. The engine pulley is damaged. 3.
  • Page 46 Schematics g017655 Electrical Diagram (Rev. A)
  • Page 47 Notes:...
  • Page 48 Countries Other than the United States or Canada Customers who have purchased Toro products outside 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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Timecutter zs 4200tf

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