Toro 74840 Operator's Manual
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Toro 74840 Operator's Manual

Toro 74840 Operator's Manual

Zero-turn-radius riding mower
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Form No. 3369-578 Rev A
TITAN ZX5020 Zero-Turn-Radius
Riding Mower
Model No. 74840—Serial No. 311000001 and Up
G015749
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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  • Page 1 Form No. 3369-578 Rev A TITAN ZX5020 Zero-Turn-Radius Riding Mower Model No. 74840—Serial No. 311000001 and Up G015749 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: Introduction

    Removing standard original equipment parts and accessories may alter the warranty, traction, and G015032 safety of the machine. Failure to use original Toro Figure 1 parts could cause serious injury or death. Making unauthorized changes to the engine, fuel or venting 1.

  • Page 3: Table Of Contents

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

  • Page 4: Safety

    • Always wear eye protection when operating the information in addition to the instructions found in mower. the ANSI standard below can be found in Toro Riding Mower Safety at the end of this section. • Data indicates that operators, age 60 years and...
  • Page 5 • Use a walk behind mower and/or a hand trimmer A hitch kit is available for this machine and can be near drop-offs, ditches, steep banks or water. obtained by contacting an Authorized Toro Dealer. Do not tow without first installing this manufacturer Using the Rollover Protection System approved hitch.

  • Page 6: Toro Riding Mower Safety

    • Never refuel the machine indoors. • Use only genuine Toro replacement parts to ensure • Never store the machine or fuel container inside that original standards are maintained. where there is an open flame, such as near a water heater or furnace.

  • 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–Do Not operate 2. Cutting/dismemberment the mower with the hazard of hand or foot, discharge deflector up mower blade–stay away or removed; keep the from moving parts. discharge deflector in place. 99-3943 Manufacturer's Mark For Models with 50 Inch Decks 1.
  • Page 10 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 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
  • Page 11 120-5466 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 12 115-9630 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. Check the drive wheel tire pressure every 25 hours 6.

  • 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 Connecting the Battery Completing the Setup No Parts Required...
  • Page 14 The mower deck was leveled at the factory. If the mower is not cutting level, adjust the side-to-side level and the front-to-rear blade slope. See the Operator's Manual for the proper procedure. Review the Remaining Parts Keep all the following items with the machine: •...

  • 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 014716...

  • 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 raised position. Using the Rollover Protection 3.
  • Page 19 these blends can damage the fuel system or DANGER cause performance problems. If any undesirable In certain conditions during fueling, static operating symptoms occur, use gasoline with a electricity can be released causing a spark which lower percentage of alcohol or ether. can ignite the gasoline vapors.

  • 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 Note: Additional starting cycles may be required when starting the engine for the first time after the Engine fuel system has been without fuel completely. Starting the Engine G008947 Figure 20 1. Off 3. Start 2. Run Stopping the Engine CAUTION Children or bystanders may be injured if they...

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

    Disengaging the Blade Control Switch (PTO) G009174 Figure 23 The Safety Interlock System WARNING If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.

  • Page 24: Driving Forward Or Backward

    Using the Motion Control Levers 3. While sitting on the seat, engage the parking brake, move the blade control switch to Off, and lock the motion control levers in neutral. Start the engine. While the engine is running, release the parking brake, engage the blade control switch, and rise slightly from the seat;...

  • Page 25: Stopping The Machine

    Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the 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.
  • Page 26 G010236 Figure 28 1. Deck lift pedal 4. Lock position. lowest height-of-cut (use only for deck removal) G010219 2. Cut height pin 5. Lock position. transport Figure 27 position Transport Lock Position 3. Height-of-cut positions Using the Lock Positions Adjusting the Height-of-Cut The deck can be locked in the highest height-of-cut or The height-of-cut can be adjusted from 1-1/2 to transport position or the lowest height-of-cut position.

  • Page 27: Adjusting The Anti-Scalp Rollers

    Adjusting the Anti-Scalp Adjusting the Motion Control Rollers Levers Whenever you change the height-of-cut, it is Adjusting the Height recommended to adjust the height of the anti-scalp rollers. The motion control levers can be adjusted higher or lower for maximum operator comfort. 1.

  • Page 28: Pushing The Machine By Hand

    Pushing the Machine by Hand DANGER Without a grass deflector, discharge cover, or Important: Always push the machine by hand. complete grass catcher assembly mounted in Never tow the machine because damage may place, you and others are exposed to blade contact occur.

  • Page 29: Cutting Speed

    Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with 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 air cleaner for dirty, loose or damaged parts. •...
  • 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 WARNING Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged G010338 parts.

  • Page 34: Servicing The Engine Oil

    Servicing Paper Element Note: Synthetic oils meeting the listed classifications may be used with oil changes performed at the Check the paper element every 50 hours of operation recommended intervals. However to allow piston rings (more often under extremely dusty or dirty conditions). to properly seat, a new or rebuilt engine should be Clean or replace the element as necessary.

  • Page 35: Changing The Engine Oil

    Note: To prevent extensive engine wear or damage, always maintain the proper oil level in the crankcase. Never operate the engine with the oil level below the “ADD” or “L” mark or above the “FULL” or “F” mark on the dipstick. 8.

  • Page 36: Servicing The Spark Plug

    Servicing the Spark Plug 5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil Service Interval: Every 200 hours—Check spark to bring it to the Full mark. plug(s) condition and gap. 6.

  • Page 37: Cleaning The Blower Housing

    Installing the Spark Plug Fuel System Tighten the spark plug(s) to 18-22 ft-lb (25-29 N-m). Maintenance Replacing the Fuel Filter Service Interval: Every 100 hours/Yearly (whichever comes first) (more often under dusty, dirty conditions). 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral lock position, and set the parking brake.

  • Page 38: Servicing The Emissions Filter

    Electrical System Maintenance Servicing the Battery Service Interval: Monthly WARNING CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related G008963 accessories contain lead and lead compounds, chemicals known to the State of California Figure 44 to cause cancer and reproductive harm. 1.

  • Page 39: Installing The Battery

    Installing the Battery WARNING 1. Position battery in the tray with the terminal posts Incorrect battery cable routing could damage the opposite from the fuel tank (Figure 45). machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in 2.

  • Page 40: Servicing The Fuses

    Figure 46 1. Positive Battery Post 3. Red (+) Charger Lead G015037 2. Negative Battery Post 4. Black (-) Charger Lead Figure 47 1. 30 amp 3. Open accessory slot 2. 25 amp 4. Fuse block Servicing the Fuses The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check the component/circuit for a malfunction or short.

  • Page 41: Drive System Maintenance

    Drive System Hydraulic System Maintenance Maintenance Oil Type: 20w-50 engine oil. Checking the Tire Pressure Important: Use oil specified or equivalent. Other fluids could cause system damage. Service Interval: Every 25 hours—Check tire pressure. Maintain the air pressure in the front and rear tires as Checking the Hydraulic Oil specified.
  • Page 42 Removing Hydraulic System Filters 1. Stop engine, wait for all moving parts to stop, and allow engine to cool. Remove the key and engage the parking brake. 2. Locate the filter and guards on each transaxle drive system (Figure 50). Remove three screws securing the filter guard and guard.

  • Page 43: Mower Deck Maintenance

    File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand.
  • Page 44 3. Measure from the tip of the blade to the flat surface here. Figure 53 1. Cutting Edge 3. Wear/slot Forming G009680 2. Curved Area 4. Crack Figure 55 Checking for Bent Blades 1. Blade, in position for measuring Note: The machine must be on a level surface for the 2.

  • Page 45: Removing The Blades

    1/8 inch (3mm), the blade spindle could be bent. Contact an Authorized Toro Dealer for service. B. If the variance is within constraints, move to the next blade..

  • Page 46: Mower Deck Leveling

    are not within 3/16 inch (5 mm), an adjustment is required; continue to the Leveling procedure. G005278 Figure 60 1. Blade 2. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Figure 58). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting.

  • Page 47: Inspecting The Belts

    deck lift foot lever is pushed back against the stop, then tighten the four leveling adjust locking nuts (Figure 64). G009659 Figure 62 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface here 2.

  • Page 48: Removing The Mower

    3. Lower the mower to the 3 inch (76 mm) height-of-cut position. 6. Using a spring removal tool, (Toro part no. 92-5771), remove the idler spring from the deck hook to 4. Remove the mower belt from the engine pulley; refer...

  • Page 49: Installing The Mower

    WARNING An uncovered discharge opening could allow the lawn mower to throw objects in the operator's or bystander's direction and result in serious injury. Also, contact with the blade could occur. Never operate the machine without grass deflector, discharge cover or grass collection system in place. Inspect the grass deflector for damage before each use.

  • Page 50: Cleaning

    Cleaning Note: If the mower is not clean after one washing, soak it and let it stand for 30 minutes. Then repeat the process. Washing the Underside of the 8. Run the mower again for one to three minutes to Mower remove excess water.

  • Page 51: Storage

    Storage B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). Cleaning and Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the 1. Disengage the blade control switch (PTO), set the Maintenance Section.

  • Page 52: 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 53 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 54: Schematics

    Schematics G010474 Wire Diagram (Rev. A)
  • Page 55 Notes:...
  • 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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Titan zx5020

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