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Toro 74841 Operator's Manual
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Toro 74841 Operator's Manual

Zero-turn-radius riding mower
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Form No. 3372-973 Rev A
TITAN ZX4820 Zero-Turn-Radius
Riding Mower
Model No. 74841—Serial No. 312000001 and Up
To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Original Instructions (EN)

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Summary of Contents for Toro 74841

  • Page 1 Form No. 3372-973 Rev A TITAN ZX4820 Zero-Turn-Radius Riding Mower Model No. 74841—Serial No. 312000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com. Original Instructions (EN)

  • Page 2: Figure 1

    WARNING Removing standard original equipment parts and accessories may alter the warranty, traction, and safety of the machine. Failure to use original Toro parts could cause serious injury or death. Making unauthorized changes to the engine, fuel or venting system, may violate EPA and CARB regulations.

  • Page 3: Table Of Contents

    Safety ................4 Changing the Hydraulic System Filter and Safe Operating Practices ........4 Oil..............41 Toro Riding Mower Safety ........6 Mower Deck Maintenance ........43 Slope Indicator............. 7 Servicing the Cutting Blades ....... 43 Safety and Instructional Decals ......8 Mower Deck Leveling.........

  • Page 4: Safety

    • Always wear eye protection when operating the to the instructions found in the ANSI standard below mower. can be found in Toro Riding Mower Safety at the end • Data indicates that operators, age 60 years and of this section.
  • Page 5 Wheels dropping over edges can cause A hitch kit is available for this machine and can be rollovers, which may result in serious injury, death obtained by contacting an Authorized Toro Dealer. or drowning. Do not tow without first installing this manufacturer •...

  • Page 6: Toro Riding Mower Safety

    • Never store the machine or fuel container inside where there is an open flame, such as near a water • Use only genuine Toro replacement parts to ensure heater or furnace. that original standards are maintained. • Never fill containers inside a vehicle or on a truck or Toro Riding Mower Safety trailer with a plastic liner.

  • 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. 117-1158 99-8936 1. Bypass lever position for 2. Bypass lever position for operating the machine pushing the machine 1.
  • Page 9 93-7009 1. Warning—don't operate the mower with the deflector up or removed; keep the deflector in place. 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts. 117-5344 1. Lock 2. Read the Operator's Manual Manufacturer's Mark 1.
  • Page 10 107-3069 1. Warning–there is no rollover protection when the roll bar is down. 2. To avoid injury or death from a rollover accident, keep the 115-9644 roll bar in the fully raised and locked position and wear the seat belt. Lower the roll bar only when absolutely 1.
  • Page 11 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystandersa safe distance from the battery. 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
  • Page 12 120-5466 1. Warning—read the Operator's Manual. 5. Loss of traction/control hazard, slopes—loss of traction/control on a slope, disengage the blade control switch (PTO), proceed off the slope slowly. 2. Warning—read the instructions before servicing or performing 6. Crushing/dismemberment hazard of bystanders, maintenance;...

  • Page 13: Setup

    Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Qty. – No parts required Connect the battery. Ignition Key Hose coupling Operator's Manual Complete the Setup. Engine Operator's Manual Operator Training Material –...

  • Page 14: Checking The Mower Adjustment

    Checking the Engine Oil Level Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Oil Level in the Operator's Manual. Checking the Hydraulic Oil Level Before you start the engine and use the machine, check the hydraulic oil level in the reservoir behind the seat;...

  • Page 15: Product Overview

    Product Overview G015763 Figure 5 1. Drive wheel 4. Motion control levers 7. Front caster wheel 10. Deflector 2. Operator seat 5. Parking brake 8. Anti-scalp roller 3. Roll over protection system 6. Footrest 9. Foot pedal deck lift and (ROPS) height-of-cut G014766...

  • Page 16: Controls

    Controls switch (PTO) is engaged. Use these times for scheduling regular maintenance (Figure 7). Become familiar with all the controls before you start the engine and operate the machine (Figure 7). Fuel Gauge The fuel window located below the operator position can be used to verify the level of gasoline in the tank (Figure 8).

  • Page 17: Operation

    Contact your could help you, your family, pets or bystanders avoid Authorized Service Dealer or Distributor or go to injury. www.Toro.com for a list of all approved attachments and accessories. DANGER Mowing on wet grass or steep slopes can cause sliding and loss of control.

  • Page 18: Using The Rollover Protection System (Rops)

    G015033 Figure 9 1. Safe Zone-use the machine here G015034 2. Use walk behind mower and/or hand trimmer near drop-offs Figure 10 and water. 3. Water Important: Always use the seat belt with the roll bar in the fully raised position. Using the Rollover Protection 3.

  • Page 19: Adding Fuel

    Adding Fuel DANGER • For best results, use only clean, fresh, unleaded In certain conditions during fueling, static gasoline with an octane rating of 87 or higher electricity can be released causing a spark which ((R+M)/2 rating method). can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can •...

  • Page 20: Checking The Engine Oil Level

    Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. Fuel Gauge Use the fuel window below the operator to verify the level of gasoline before filling the tank (Figure 12).

  • Page 21: Operating The Throttle

    Releasing the Parking Brake G010079 Figure 15 Operating the Throttle The throttle control can be moved between Fast and Slow positions (Figure 16). G008959 Figure 17 Always use the fast position when turning on the mower deck with the blade control switch (PTO). 1.

  • Page 22: Starting And Stopping The Engine

    Starting and Stopping the on the Choke control and let the engine run for a few seconds. Then push down the Choke control. Engine Repeat as required. Note: Additional starting cycles may be required Starting the Engine when starting the engine for the first time after the 1.

  • Page 23: Operating The Mower Blade Control Switch (Pto)

    G008945 Figure 22 Disengaging the Blade Control Switch (PTO) G009174 Figure 23 G010081 The Safety Interlock System Figure 21 WARNING If safety interlock switches are disconnected or Operating the Mower Blade damaged the machine could operate unexpectedly Control Switch (PTO) causing personal injury.

  • Page 24: Driving Forward Or Backward

    Testing the Safety Interlock System Using the Motion Control Levers Test the safety interlock system before you use the machine each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately. 1.

  • Page 25: Stopping The Machine

    blade control switch (PTO), and turn the ignition key to off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake. Remember to remove the key from the ignition switch. CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended.

  • Page 26: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut 2. Remove the pin from the height-of-cut bracket (Figure 28). The height-of-cut can be adjusted from 1-1/2 to 3. Select the lower hole on the lock decal and insert 4-1/2 inch (38 to 114 mm) in 1/4 inch (6 mm) the pin (Figure 28).

  • Page 27: Positioning The Seat

    Positioning the Seat Adjusting the Motion Control Levers The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. Adjusting the Height While sitting in the operator's position, raise the seat The motion control levers can be adjusted higher or adjustment lever slightly and move the seat forward or lower for maximum operator comfort.

  • Page 28: Pushing The Machine By Hand

    Adjusting the Tilt Pushing the Machine by Hand The motion control levers can be tilted fore or aft for Important: Always push the machine by hand. maximum operator comfort. Never tow the machine because damage may occur. 1. Loosen the upper bolt holding the control lever to the control arm shaft.

  • Page 29: Operating Tips

    Alternate mowing direction to keep the grass standing down any nicks and sharpen the blades as necessary. If straight. This also helps disperse clippings which a blade is damaged or worn, replace it immediately with enhances decomposition and fertilization. a genuine TORO replacement blade.

  • Page 30: Maintenance

    Maintenance Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. After the first 8 hours • Change the hydraulic system filter and oil. After the first 50 hours • Check the safety interlock system. • Check the engine oil level. •...
  • Page 31 Figure 33 Located on the seat pan underside 1. Read the Operator's Manual before performing any 4. Check the hydraulic oil every 25 hours maintenance. 2. Check the engine oil every 8 hours 5. Check the caster wheel tire pressure every 25 hours 3.

  • Page 32: 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 Grease Type: No. 2 General Purpose Lithium Base neutral lock position. Lift the seat forward. Grease The following components can be accessed by raising 1.

  • Page 33: Engine Maintenance

    Engine Maintenance Cleaning the Element Service Interval: Every 100 hours—Service the paper element. (more often in dusty, dirty WARNING conditions) Contact with hot surfaces may cause personal Every 200 hours/Yearly (whichever injury. comes first)—Replace the paper Keep hands, feet, face, clothing and other body element.
  • Page 34 Changing the Engine Oil WARNING Service Interval: After the first 8 hours—Change the Contact with hot surfaces may cause personal engine oil. injury. Every 100 hours—Change the engine Keep hands, feet, face, clothing and other body oil. (more often in dusty, dirty parts away the muffler and other hot surfaces.

  • Page 35: 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 39). G008796 Figure 39 G008748 Figure 40 Changing the Engine Oil Filter Note: Ensure the oil filter gasket touches the engine and then an extra 3/4 turn is completed.

  • Page 36: Cleaning The Cooling System

    Removing the Spark Plug 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 37: Fuel System Maintenance

    Fuel System 5. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 45). Maintenance 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.

  • Page 38: 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: Monthly cable before disconnecting the positive (red) cable.

  • Page 39: Servicing The Fuses

    Installing the Battery 1. Position battery in the tray with the terminal posts opposite from the fuel tank (Figure 46). 2. First, install the positive (red) battery cable to positive (+) battery terminal. 3. Then install the negative battery cable to the negative (-) battery terminal.

  • Page 40: Drive System Maintenance

    Drive System 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 49). Check the tires when they are cold to get the most accurate pressure reading.

  • Page 41: Hydraulic System Maintenance

    Hydraulic System 2. Locate the filter and guards on each transaxle drive system (Figure 51). Remove three screws securing Maintenance the filter guard and guard. Oil Type: 20w-50 engine oil. G010254 Important: Use oil specified or equivalent. Other fluids could cause system damage. Checking the Hydraulic Oil Level Service Interval: Every 25 hours...
  • Page 42 hydraulic filters and oil can result in irreparable damage to the transaxle drive system. Bleeding the Hydraulic System 1. Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely. G010333 Figure 53 1.

  • Page 43: Mower Deck Maintenance

    If a blade is damaged or worn, Checking for Bent Blades replace it immediately with a genuine Toro replacement Note: The machine must be on a level surface for the blade. For convenient sharpening and replacement, you following procedure.
  • Page 44 3. Opposing side of blade being moved into measurement 1/8 inch (3mm), the blade spindle could be bent. position Contact an Authorized Toro Dealer for service. B. If the variance is within constraints, move to the 5. Measure from the tip of the blade to the flat surface next blade..

  • Page 45: Mower Deck Leveling

    Figure 61 1. Blade 2. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Figure 59). Important: The curved part (sail of the blade) of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2.
  • Page 46 are not within 3/16 inch (5 mm), an adjustment is required; continue to the Leveling procedure. Figure 63 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface Figure 62 here 1. Blades side to side 3.

  • Page 47: Inspecting The Belts

    2. Pivot the belt cover up 3. Leveling adjust locking nut 6. Rear deck hanger bracket 5. Using a spring removal tool, (Toro part no. 92-5771), 5. Recheck that blocks fit just snugly under the deck remove the idler spring from the deck post to remove skirt.

  • Page 48: Removing The Mower Deck

    The spring is under tension when installed and can cause personal injury. Be careful when removing the belt. 9. Using a spring removal tool, (Toro part no. 92-5771), install the idler spring over the deck post and placing tension on the idler pulley and mower belt (Figure 67).

  • Page 49: Installing The Mower Deck

    Note: Retain all parts for future installation. Installing the Mower Deck 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to the neutral lock position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 50: Cleaning

    Cleaning Washing the Underside of the Mower Service Interval: Before each use or daily—Clean the mower housing. Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal. 1. Park the machine on a level surface and disengage the blade control switch.

  • Page 51: Waste Disposal

    Storage 6. Disengage the blade control switch, stop the engine, and remove the ignition key. Wait for all moving parts to stop. Cleaning and Storage 7. Turn the water off and remove the coupling from 1. Disengage the blade control switch (PTO), set the the washout fitting.
  • Page 52 B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). C. Stop the engine, allow it to cool, and drain the fuel tank. D. Restart the engine and run it until it stops. E. Dispose of fuel properly. Recycle as per local codes.

  • Page 53: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control switch (PTO) is engaged. 1. Move blade control switch (PTO) to disengaged. 2. Parking brake is not on. 2. Set the parking brake. 3. Drive levers are not in neutral lock 3.
  • Page 54 Problem Possible Cause Corrective Action Machine does not drive. 1. By pass valves is not closed tight. 1. Tighten the by pass valves. 2. Pump belt is worn, loose or broken. 2. Change the belt. 3. Pump belt is off a pulley. 3.

  • Page 55: Schematics

    Schematics G014723 Wire Diagram (Rev. B)
  • Page 56 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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