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Toro 74020 Operator's Manual
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Toro 74020 Operator's Manual

Toro 74020 Operator's Manual

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Original Instructions (EN)
Z Master
®
Mower
With 48in, 52in, 60in, or 72in TURBO
FORCE® Mower
Model No. 74000—Serial No. 400000000 and Up
Model No. 74000TA—Serial No. 400000000 and Up
Model No. 74002—Serial No. 400000000 and Up
Model No. 74004—Serial No. 400000000 and Up
Model No. 74010—Serial No. 400000000 and Up
Model No. 74015—Serial No. 400000000 and Up
Model No. 74020—Serial No. 400000000 and Up
Model No. 74022—Serial No. 400000000 and Up
Model No. 74035—Serial No. 400000000 and Up
Model No. 74050—Serial No. 400000000 and Up
Model No. 74050TA—Serial No. 400000000 and Up
Model No. 74052—Serial No. 400000000 and Up
Model No. 74054—Serial No. 400000000 and Up
Model No. 74054TA—Serial No. 400000000 and Up
Model No. 74055—Serial No. 400000000 and Up
Model No. 74055TA—Serial No. 400000000 and Up
Form No. 3447-643 Rev B
4000 Series Riding
*3447-643*

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  • Page 1 Model No. 74004—Serial No. 400000000 and Up Model No. 74010—Serial No. 400000000 and Up Model No. 74015—Serial No. 400000000 and Up Model No. 74020—Serial No. 400000000 and Up Model No. 74022—Serial No. 400000000 and Up Model No. 74035—Serial No. 400000000 and Up Model No.

  • Page 2: Figure 1

    Authorized Service manufacturer in accordance with the Society of Dealer or Toro Customer Service and have the model Automotive Engineers (SAE) J1940 or J2723. As and serial numbers of your product ready.

  • Page 3: Table Of Contents

    information and Note emphasizes general information Using the Motion-Control Levers....... 26 worthy of special attention. Driving the Machine .......... 26 Using the Side Discharge ......... 27 The safety-alert symbol (Figure 2) appears both in Adjusting the Height of Cut ....... 28 this manual and on the machine to identify important Adjusting the Height of Cut .......

  • Page 4: Safety

    Safety Servicing the Cutting Blades ......64 Adjusting the Side-to-Side Leveling and the Blade Slope ..........67 This machine has been designed in accordance with Removing the Mower Deck....... 69 ANSI standard B71.4-2017. Replacing the Grass Deflector ......70 Cleaning .............. 70 Cleaning under the Mower Deck .......

  • Page 5: Slope Indicator

    Slope Indicator g011841 Figure 3 You may copy this page for personal use. 1. The maximum slope you can 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 6: 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 missing. decaloemmarkt Manufacturer's Mark 1. This mark indicates that the blade is identified as a part from the original machine manufacturer.
  • Page 7 decal115-9625 115-9625 1. Parking 2. Parking brake—engaged brake—disengaged decal107-3069 107-3069 decal116-5610 116-5610 1. Warning–there is no rollover protection when the roll bar is down. 1. Hour meter 4. Neutral 2. To avoid injury or death from a rollover accident, keep the 2.
  • Page 8 decal117-3848 117-3848 1. Thrown object hazard—keep bystanders away. 2. Thrown object hazard, raised deflector—do not operate decal127-0326 127-0326 without the deflector, discharge cover, or grass collection system in place. 1. Read the Operator's 3. Remove the key and 3. Cutting/dismemberment hazard of hand or foot, mower read the Operator's Manual.
  • Page 9 Decal 144-0405 is for machines not equipped with an Decal 144-6569 is for machines equipped with a optional headlight. headlight. decal144-0405 144-0405 decal144-6569 144-6569 1. Headlights 3. Engine speed—slow 1. Headlights 3. Engine speed—slow 2. Engine speed—fast 2. Engine speed—fast decal144-2669 144-2669 1.
  • Page 10 Decal 126-8383 is for machines without MyRide only. decal126-8383 126-8383 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in the conditions on that day and at that site.
  • Page 11 Decal 132-0871 is for machines with MyRide only. decal132-0871 132-0871 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in the conditions on that day and at that site.

  • Page 12: Product Overview

    Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine. Control Panel g332505 Figure 4 1. Height-of-cut positions 7. Fuel cap 2. Controls 8. Parking-brake lever g332503 3. Motion-control levers 9. Mower deck Figure 5 4.
  • Page 13 Throttle Control Electronic-Control Unit Malfunction-Indicator Light The throttle controls the engine speed, and it has a continuous-variable setting from the S to F For Models with an EFI Engine Only position (Figure The electronic-control unit (ECU) continuously monitors the operation of the EFI system. Blade-Control Switch (Power If a problem or fault within the system is detected, the Takeoff)

  • Page 14: Specifications

    535 to 590 kg (1,180 to 1,300 617 kg (1,360 lb) Attachments/Accessories A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories.

  • Page 15: Before Operation

    Fuel Safety Operation • Fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and Note: Determine the left and right sides of the others and can damage property. machine from the normal operating position. –...

  • Page 16: Adding Fuel

    Adding Fuel Note: Do not fill the fuel tank completely full. The empty space in the tank allows the fuel to expand. Recommended Fuel • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method).

  • Page 17: Breaking In A New Machine

    Breaking in a New Machine New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance.

  • Page 18: Using The Safety-Interlock System

    Using the Safety-Interlock Testing the Safety-Interlock System System Service Interval: Before each use or daily WARNING Test the safety-interlock system before you use the machine each time. If the safety system does not If the safety-interlock switches are operate as described below, have an Authorized disconnected or damaged, the machine could Service Dealer repair the safety system immediately.

  • Page 19: Positioning The Seat

    Positioning the Seat Adjusting the Rear-Shock Assemblies The seat can move forward and backward (Figure 11). Position the seat where you have the best control of Machines with MyRide™ the machine and are most comfortable. Suspension System Only The MyRide™ suspension system adjusts to provide a smooth and comfortable ride.

  • Page 20: During Operation

    During Operation During Operation Safety General Safety • The owner/operator can prevent and is responsible for accidents that may cause personal injury or g030024 property damage. • Use your full attention while operating the machine. Do not engage in any activity that causes distractions;...
  • Page 21 Avoid discharging Authorized Service Dealer to inspect the ROPS. material against a wall or obstruction because the • Use only Toro approved accessories and material may ricochet back toward you. attachments for the ROPS. •...
  • Page 22 – Evaluate the site conditions of the day to determine if the slope is safe for machine operation. Use common sense and good judgment when performing this evaluation. Changes in the terrain, such as moisture, can quickly affect the operation of the machine on a slope.

  • Page 23: Entering The Operator's Position

    Entering the Operator’s Disengaging the Parking Brake Position Use the mower deck as a step to get into the operator’s position (Figure 17). g283914 Figure 19 g029797 Figure 17 1. Step here. Operating the Parking Brake Always engage the parking brake when you stop the machine or leave it unattended.

  • Page 24: Operating The Mower Blade-Control Switch (Pto)

    Operating the Mower Operating the Throttle Blade-Control Switch (PTO) You can move the throttle control between F positions (Figure 22). The blade-control switch (PTO) starts and stops the Always use the F position when engaging the PTO. mower blades and any powered attachments. Engaging the Blade-Control Switch (PTO) Note:...

  • Page 25: Starting The Engine

    Starting the Engine Shutting Off the Engine Note: A warm or hot engine may not require choking. CAUTION Important: Do not engage the starter for more Children or bystanders may be injured if they than 5 seconds at a time. Engaging the starter move or attempt to operate the machine while motor for more than 5 seconds can damage the it is unattended.

  • Page 26: Using The Motion-Control Levers

    Using the Motion-Control Driving the Machine Levers The drive wheels turn independently, powered by hydraulic motors on each axle. You can turn 1 side in reverse while you turn the other forward, causing the machine to spin rather than turn. This greatly improves the machine maneuverability but may require some time for you to adapt to how it moves.

  • Page 27: Using The Side Discharge

    Using the Side Discharge The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. DANGER Without a grass deflector, discharge cover, or a complete grass-catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.

  • Page 28: Adjusting The Height Of Cut

    Adjusting the Height of Cut Adjusting the Height-of-Cut Pin You can adjust the height of cut from 38 to 140 mm For Machines with a Deck-Lift (1-1/2 to 5-1/2 inches) in 6 mm (1/4 inch) increments Pedal by relocating the clevis pin into different hole locations. Push the deck-lift pedal fully forward to lock the Using the Transport Lock mower deck in the T...

  • Page 29: Adjusting The Height Of Cut

    Adjusting the Height of Cut Adjusting the Anti-Scalp Rollers For Machines with an Electric Deck Lift Whenever you change the height-of-cut, adjust the height of the anti-scalp rollers. Push up on the deck-lift switch (Figure 31). Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake.

  • Page 30: Operating Tips

    Operating Tips Using the Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the F position. Air is required to thoroughly cut grass clippings, so do not set the height-of-cut so low as to totally surround the mower deck in uncut grass.

  • Page 31: After Operation

    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. After Operation After Operation Safety g008948...
  • Page 32 For Machines with ZT 5400 Hydros WARNING The engine and hydraulic-drive units can The drive-wheel release valves are located on the left and right sides underneath the engine deck. become very hot. Touching a hot engine or hydraulic-drive units can cause severe burns. Park the machine on a level surface, disengage the blade-control switch, and engage the parking Allow the engine and hydraulic-drive units...

  • Page 33: Transporting The Machine

    Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury.
  • Page 34 Unloading the Machine If using a trailer, connect it to the towing vehicle and connect the safety chains. Lower the ramp, ensuring that the angle If applicable, connect the trailer brakes and between the ramp and the ground does not lights.

  • Page 35: Maintenance

    Keep your hands and feet away from moving • To ensure optimum performance, use only parts or hot surfaces. If possible, do not make genuine Toro replacement parts and accessories. adjustments with the engine running. Replacement parts and accessories made by •...
  • Page 36 • After the initial change—change the hydraulic-system filters and fluid when using Every 400 hours or yearly, Toro® HYPR-OIL™ 500 fluid (change it more often under dirty or dusty conditions). whichever comes first • For Kawasaki engines—replace the safety air filter (more often in dirty or dusty conditions).

  • Page 37: Lubrication

    Lubrication Greasing the Caster Pivots Service Interval: Every 400 hours/Yearly (whichever comes first) (more often in dirty or Greasing the Machine dusty conditions). Grease the machine more often in dirty or dusty Yearly—Repack the caster-wheel bearings conditions. (more often in dirty or dusty conditions). Park the machine on a level surface, disengage Grease Type: No.
  • Page 38 Remove a spacer nut from the axle assembly in the caster wheel. Note: Thread-locking compound has been applied to lock the spacer nuts to the axle. Remove the axle (with the other spacer nut still assembled to it) from the wheel assembly. Pry out seals and inspect bearings for wear or damage and replace if necessary.

  • Page 39: Engine Maintenance

    Engine Maintenance surfaces. Allow engine components to cool before performing maintenance. • Do not change the engine governor speed or Engine Safety overspeed the engine. • Keep your hands, feet, face, other body parts, and clothing away from the muffler and other hot Identifying the Engine Use the following graphic to identify the engine you have and proceed to the section listed below for service (Figure...

  • Page 40: Servicing A Kawasaki ® Engine

    Servicing a Kawasaki ® Engine This section is only for machines with Kawasaki engines. If your engine looks like the one shown in Figure 45, you have a Kawasaki engine. Important: Refer to your engine owner’s manual for additional maintenance procedures. g001883 Figure 46 1.
  • Page 41 Carefully slide the primary filter over the safety viscosity to accommodate atmospheric conditions. filter (Figure 46). Using 20W-50 engine oil in higher ambient temperatures can reduce oil consumption. Note: Ensure that the primary filter is fully seated by pushing on the outer rim while Checking the Engine-Oil Level installing it.
  • Page 42 Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Drain the oil from the engine (Figure 49). g008804 g008804 g311705 Figure 48 g027734 Figure 49 Changing the Engine Oil Note: Dispose of the used oil at a recycling center.
  • Page 43 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 50). g008804 g194610 Figure 50 Start the engine and drive to a flat area. Check the oil level again.
  • Page 44 Servicing the Spark Plug(s) Checking the Spark Plug(s) Important: Do not clean the spark plug(s). Service Interval: Every 100 hours Always replace the spark plug(s) when it has a Ensure that the air gap between the center and side black coating, worn electrodes, an oily film, or electrodes is correct before installing the spark plug.

  • Page 45: Servicing A Kohler Engine

    Servicing a Kohler ® Engine This section is only for machines with Kohler engines. If your engine looks like the one shown in Figure you have a Kohler engine. Important: Refer to your engine owner’s manual for additional maintenance procedures. g012996 Figure 56 1.

  • Page 46: The Engine Oil

    Note: Ensure that the primary filter is fully seated by pushing on the outer rim while installing it. Important: Do not press on the soft, inside area of the filter. Install the air-cleaner cover and secure the latches (Figure 57). Servicing the Engine Oil Service Interval: Before each use or daily—For Kohler Engines—check the...

  • Page 47: Figure 59

    Note: Note: Ensure that the engine is cool so that the This warms the oil so that it drains better. oil has had time to drain into the sump. Park the machine so that the drain side is slightly To keep dirt, grass clippings, etc., out of the lower than the opposite side to ensure that the engine, clean the area around the oil-fill cap and oil drains completely.

  • Page 48: Start The Engine And Drive To A Flat Area

    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 61). g008804 g194610 Figure 61 Start the engine and drive to a flat area. Check the oil level again.
  • Page 49 Removing the Spark Plug Installing the Spark Plug Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 50: Cleaning The Engine Screen

    Cleaning the Engine Screen Fuel System Maintenance Service Interval: Before each use or daily—Clean the engine screen, engine-oil cooler, and the area around the engine. DANGER Before each use or daily—Clean around the In certain conditions, fuel is extremely engine-exhaust system. flammable and highly explosive.

  • Page 51: Servicing The Fuel Tank

    Electrical System Maintenance Electrical System Safety • Disconnect the cable from the negative terminal of the battery before repairing the machine. • Charge the battery in an open, well-ventilated area, away from sparks and flames. Unplug the charger before connecting or disconnecting the battery.
  • Page 52 g036853 g000960 Figure 68 1. Positive (+) battery post 3. Red (+) charger lead 2. Negative (–) battery post 4. Black (–) charger lead g036855 Figure 67 Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from the battery.

  • Page 53: Servicing The Fuses

    Installing the Battery Servicing the Fuses Position the battery in the tray with the terminal The electrical system is protected by fuses. It requires posts opposite from the hydraulic tank (Figure no maintenance; however, if a fuse blows check the 67).

  • Page 54: Drive System Maintenance

    Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily Inspect the seat belt for wear, cuts, and proper operation of the retractor and buckle. Replace the seat belt if it is damaged. Adjusting the Tracking Disengage the blade-control switch (PTO).

  • Page 55: Checking The Tire Pressure

    Checking the Tire Pressure Brake Maintenance For Machines with Pneumatic Adjusting the Parking Tires Only Brake Service Interval: Every 50 hours/Monthly (whichever comes first) For machines with If you need to adjust the parking brake, contact an pneumatic tires only. Authorized Service Dealer.

  • Page 56: Belt Maintenance

    Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Replace the belt if it is worn. The signs of a worn belt include squealing while the belt is rotating; the blades slipping while cutting grass; and frayed edges, burn marks, and cracks on the belt.

  • Page 57: Replacing The Hydraulic Pump-Drive Belt

    g027730 Figure 75 Replacing the Hydraulic g334847 Figure 76 Pump-Drive Belt 1. Idler pulley 6. Right hydraulic-pump pulley Park the machine on a level surface, disengage 2. Square hole in the idler 7. Mower belt the blade-control switch (PTO), and engage the arm for the ratchet parking brake.

  • Page 58: Controls System Maintenance

    Adjusting the Tilt Controls System Park the machine on a level surface, disengage Maintenance the blade-control switch (PTO), and engage the parking brake. Adjusting the Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the Control-Handle Position operating position.

  • Page 59: Adjusting The Motion-Control Linkage

    Adjusting the Adjust the pump-control-rod lengths by rotating the nut in the appropriate direction until the Motion-Control Linkage wheels slightly creep in reverse (Figure 79 Figure 80). Located on either side of the machine, below the seat, are the pump-control linkages. Rotating the end nut with a 1/2-inch deep socket wrench allows fine tuning adjustments so that the machine does not move in neutral.

  • Page 60: Hydraulic System Maintenance

    Use cardboard or paper to find hydraulic leaks. • Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system. Hydraulic-Fluid Specifications Hydraulic Fluid Type: Toro ® HYPR-OIL ™ hydraulic fluid Important: Use the specified fluid. Other fluids could damage the hydraulic system.

  • Page 61: Checking The Hydraulic-Fluid Level

    Every 400 hours or yearly, whichever comes Check expansion reservoir and if necessary first—After the initial change—change the add Toro ® HYPR-OIL ™ 500 hydraulic fluid to the hydraulic-system filters and fluid when using...
  • Page 62 Place a drain pan below the filter to catch the fluid that drains when the filter and vent plugs are removed. Remove the hydraulic-fluid filter cover from the transaxle to drain the fluid (Figure 84). g336998 Figure 82 1. Access holes for the vent plugs •...

  • Page 63: Bleeding The Hydraulic System

    Important: Failure to perform the Bleeding Check the fluid level in the expansion reservoir the Hydraulic System procedure after a final time. Add the specified fluid as until it changing hydraulic filters and fluid can reaches the F line on the expansion result in irreparable damage to the transaxle reservoir.

  • Page 64: Mower Deck Maintenance

    Mower Deck Maintenance Blade Safety • Inspect the blades periodically for wear or damage. • Use care when checking the blades. Wrap the g006530 blades or wear gloves, and use caution when Figure 86 servicing the blades. Only replace or sharpen the 1.
  • Page 65 Checking for Bent Blades Note: The machine must be on a level surface for the following procedure. Raise the mower deck to the highest height-of-cut position. While wearing thickly padded gloves, or other adequate hand protection, slowly rotate the blade into a position that allows you to measure g014974 the distance between the cutting edge and the Figure 89...
  • Page 66 Removing the Blades Note: If the blade stays in a horizontal position, the blade is balanced and can be used. Replace the blades if they hit a solid object, or if the Note: If the blade is not balanced, file some blade is out of balance or bent.

  • Page 67: Adjusting The Side-To-Side Leveling And The Blade Slope

    Adjusting the Side-to-Side Leveling and the Blade Slope Check to ensure that the mower deck is level any time you install the mower or when you see an uneven cut on your lawn. Check the mower deck for bent blades prior to leveling, and remove and replace any bent blades;...
  • Page 68 Check the front-to-rear blade level (Figure 97). Ensure the front blade tip is lower than the rear blade tip as shown in the block height and rake table. If adjustment is needed, continue with this procedure. g037880 Figure 97 1. Blades front to rear 3.

  • Page 69: Removing The Mower Deck

    Removing the Mower Deck Block Height and Rake Table Deck Front Block Height Rake Before servicing or removing the mower deck, lock Size out the spring-loaded deck arms. All mower 73 mm (2-7/8 inches) 4.8 to 6.4 mm (3/16 to 1/4 Park the machine on a level surface, disengage decks inch)

  • Page 70: Replacing The Grass Deflector

    Replacing the Grass Cleaning Deflector Cleaning under the Mower WARNING Deck An uncovered discharge opening could allow the machine to throw objects toward you or Service Interval: After each use bystanders, resulting in serious injury. Also, Park the machine on a level surface, disengage contact with the blade could occur.

  • Page 71: Storage

    Storage Check the condition of the blades; refer to Servicing the Cutting Blades (page 64). Prepare the machine for storage when non-use Storage Safety occurs over 30 days. Prepare the machine for storage as follows: • Shut off the engine, remove the key, and wait for all moving parts to stop before you leave the Add a petroleum-based operator’s position.

  • Page 72: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The engine overheats. 1. The engine load is excessive. 1. Reduce the 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 73 Problem Possible Cause Corrective Action The engine does not start, starts hard, or 1. The fuel tank is empty. 1. Fill the fuel tank. fails to keep running. 2. The fuel-shutoff valve is closed. 2. Open the fuel-shutoff valve. 3. The oil level in the crankcase is low. 3.
  • Page 74 Problem Possible Cause Corrective Action The cutting height is uneven. 1. The blade(s) is not sharp. 1. Sharpen the blade(s). 2. A cutting blade(s) is/are bent. 2. Install a new cutting blade(s). 3. The mower is not level. 3. Level the mower from side-to-side and front-to-rear.

  • Page 75: Schematics

    Schematics g338323 Kawasaki Engines Electrical Schematic—Page 1 (Rev. A)
  • Page 76 g338324 Kawasaki Engines Electrical Schematic—Page 2 (Rev. A)
  • Page 77 g341124 Kohler Engines Electrical Schematic (Rev. A)
  • Page 78 Notes:...
  • Page 79 Notes:...
  • Page 80 While the exposure from Toro products may be negligible or well within the “no significant risk” range, out of an abundance of caution, Toro has elected to provide the Prop 65 warnings. Moreover, if Toro does not provide these warnings, it could be sued by the State of California or by private parties seeking to enforce Prop 65 and subject to substantial penalties.

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