Toro 72074 Operator's Manual
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Toro 72074 Operator's Manual

Toro 72074 Operator's Manual

With 60in or 72in turbo force mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
with 60in or 72in TURBO FORCE
Model No. 72028—Serial No. 400000000 and Up
Model No. 72029—Serial No. 400000000 and Up
Model No. 72074—Serial No. 400000000 and Up
Model No. 72076—Serial No. 400000000 and Up
Form No. 3434-326 Rev E
Professional 7500-D
®
Mower
*3434-326*

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Summary of Contents for Toro 72074

  • Page 1 60in or 72in TURBO FORCE ® Mower Model No. 72028—Serial No. 400000000 and Up Model No. 72029—Serial No. 400000000 and Up Model No. 72074—Serial No. 400000000 and Up Model No. 72076—Serial No. 400000000 and Up *3434-326* Register at www.Toro.com. Original Instructions (EN)
  • Page 2 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

    Contents Fuel System Maintenance ........45 Draining the Fuel Filter/Water Separator ... 45 Replacing the Water Separator ......45 Safety ............... 4 Checking the Fuel Lines and Safety Alert Symbol ..........4 Connections..........45 General Safety ........... 4 Electrical System Maintenance ......46 Slope Indicator ...........

  • Page 4: Safety

    Safety This machine is capable of amputating hands and feet This machine has been designed in accordance with and of throwing objects. Toro designed and tested ANSI B71.4-2017. this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death.

  • 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. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. 1.
  • Page 7 decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards and shields in place. decal116-5988 116-5988 1. Parking brake—engaged 2. Parking brake—disengaged decal107-3069 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 roll bar in the raised and locked position and wear the seat belt.
  • Page 8 Side Discharge Mowers Only decal126-6464 126-6464 1. Thrown object 3. Cutting/dismemberment hazard—keep bystanders hazard of hand or foot, away. mower blade—stay away from moving parts; keep all guards and shields in place. 2. Thrown objects hazard, mower—do not operate without the deflector, discharge cover, or grass collection system in place.
  • Page 9 For Models with 183 cm (72-inch) Decks with Side Discharge decal126-9276 126-9276 1. Belt routing decal126-9275 126-9275 decal126-9278 126-9278 1. Engine—Off 4. Push the bottom of the button to lower the deck. 2. Engine—On 5. Push the top of the button to raise the deck. 3.
  • Page 10 decal126-9279 126-9279 1. Read the instructions before servicing or performing 7. Check the jackshaft-fluid level. maintenance to the machine. 2. Time interval 8. Grease the deck-drive PTO; refer to the Operator's Manual for further instructions. 3. Check the engine-oil level. 9.
  • Page 11 Side Discharge Mowers Only Rear Discharge Mowers Only decal135-0664 135-0664 1. Thrown object 2. Cutting/dismemberment hazard—keep bystanders hazard of hands and away. feet—stay away from moving parts; keep all guards and shields in decal131-1180 place. 131-1180 1. Read the Operator's Manual. (A) Short, light grass; dry conditions;...
  • Page 12 135-1432 decal135-2837 135-2837 1. Read the Operator’s Manual for more information; Use red Toro wet-clutch transmission fluid; do not use green hydraulic fluid. decal133-8062 133-8062...

  • Page 13: Product Overview

    Product Overview g227303 Figure 4 1. Height-of-cut pin 7. Motion-control lever 2. Parking-brake lever 8. Fuel-tank cap 3. Monitor/controls 9. Anti-scalp roller 4. Roll bar 10. Skid 5. Engine screen 11. Caster wheel 6. Audible alarm and power point 12. Mower deck...

  • Page 14: Controls

    Controls Become familiar with all the controls before you start the engine and operate the machine. Control Panel g228164 Figure 6 g225792 Horizon Display Monitor Figure 5 1. Horizon display monitor 3. Key switch 1. Screen 3. Buttons 2. LED status light 2.
  • Page 15 Blade-Control Switch (Power • A fast chirp sound indicates critical errors. Takeoff) • A slow chirping sound indicates less critical errors, such as required maintenance or service intervals. The blade-control switch (PTO) engages and Note: During startup, the alarm sounds briefly to disengages power to the mower blades (Figure verify functionality.

  • Page 16: Specifications

    Roll bar down 129.5 cm (51 inches) To ensure optimum performance and continued safety certification of the machine, use only genuine Toro Tread Width of Drive Wheels—All Machines replacement parts and accessories. Replacement 112 cm (44.1 inches)

  • Page 17: Before Operation

    Only use accessories and trailer. attachments approved by Toro. • • Do Not fill the fuel tank completely full. Inspect the area where the equipment is to be...

  • Page 18: Adding Fuel

    • Keep engine and engine area free from DANGER accumulation of grass, leaves, excessive grease In certain conditions during fueling, static or oil, and other debris which can accumulate in electricity can be released causing a spark these areas. which can ignite fuel vapors. A fire or •...

  • Page 19: Performing Daily Maintenance

    Performing Daily • Fuel filter plugging may be expected for a time after converting to biodiesel blends. Maintenance • Contact your distributor for more information on biodiesel. Before starting the machine each day, perform the Each Use/Daily procedures listed in Maintenance (page 37).

  • Page 20: Using The Safety-Interlock System

    Using the Safety-Interlock System WARNING If the 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 21: Positioning The Seat

    Unlatching the Seat operate as described below, have an Authorized Service Dealer repair the safety system immediately. To unlatch the seat, push the seat latch forward Sit on the seat, engage the parking brake, and (Figure 12). move the blade-control switch (PTO) to the O position.

  • Page 22: During Operation

    During Operation • Be sure all drives are in neutral and parking brake is engaged before starting engine. Use seat belts with the roll bar in the raised and locked position. During Operation Safety • Start the engine carefully according to instructions with feet well away from the blades.

  • Page 23: Slope Safety

    – Whenever you leave the mower. Do Not leave distance (twice the width of the machine) between a running machine unattended. the machine and any hazard. Use a walk behind machine or a hand trimmer to mow the grass in •...

  • Page 24: Rollover Protection System (Rops) Safety

    In the event of a rollover, take the unit to an Authorized Service Dealer to have the ROPS inspected. • Replace a damaged ROPS. Do Not repair or revise. • Any accessories, alterations, or attachments added to the ROPS must be approved by Toro. g227610 Figure 16...

  • Page 25: Operating The Mower Blade-Control Switch (Pto)

    Operating the Mower Starting the Engine Blade-Control Switch (PTO) Important: Do not engage the starter for more than 5 seconds at a time. If the engine fails to The blade-control switch (PTO) starts and stops the start, wait 15 seconds between attempts. Failure mower blades and any powered attachments.

  • Page 26: Shutting Off The Engine

    Shutting Off the Engine Using the Motion-Control Levers CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Always remove the key and engage the parking brake when leaving the machine unattended.

  • Page 27: Driving The Machine

    Driving the Machine 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 28: Using The Side Discharge

    Using the Side Discharge Adjusting the Height of Cut Machines with Side Discharge Adjust the height of cut from 25 to 140 mm (1 to 5-1/2 inches) in 6 mm (1/4 inch) increments by moving the Only clevis pin into different hole locations. The mower has a hinged grass deflector that With the engine running, push the deck-lift disperses clippings to the side and down toward the...

  • Page 29: Adjusting The Anti-Scalp Rollers

    Adjusting the Anti-Scalp Rollers For maximum deck flotation, install the rollers 1 hole position lower. Rollers should maintain a 6 mm (1/4 inch) clearance to the ground. Do not adjust the rollers to support the deck. Park the machine on a level surface. Disengage the blade-control switch (PTO), move the motion-control levers to the N EUTRAL...

  • Page 30: Adjusting The Skids

    Adjusting the Skids For Models with Rear Discharge Mount the skids in the lower position when operating at heights of cut greater than 51 mm (2 inches) and in a higher position when operating at heights of cut lower than 51 mm (2 inches). Adjust the skids as shown in Figure g227783...

  • Page 31: Positioning The Flow Baffle

    Positioning the Flow Baffle Position B Use this position when bagging. Always align it with For Machines with Side Discharge the blower opening. The following figures are recommendations only. Adjustments vary by grass type, moisture content, and the height of the grass. Note: If the engine power draws down and the mower ground speed is the same, open the baffle.

  • Page 32: Operating With The Overheat Sensor

    g295812 Figure 32 Operating with the Overheat Sensor The PTO disengages, an alarm sounds, and a bar graph displays the engine temperature when it reaches an overheat condition. The PTO does not engage until the engine has cooled and you manually shut off the PTO and engage it.

  • Page 33: Operating Tips

    It is best to cut only about a third of the grass blade. genuine Toro replacement blade. Cutting more than that is not recommended unless grass is sparse, or it is late fall when grass grows more slowly.

  • Page 34: After Operation

    After Operation After Operation Safety General Safety • Park machine on level ground, disengage drives, set parking brake, stop engine, and remove key. Wait for all movement to stop and allow the machine to cool before adjusting, cleaning, repairing, or storing. Never allow untrained personnel to service machine.

  • Page 35: Selecting A Trailer

    Selecting a Trailer WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death (Figure 34). • Use only a full-width ramp; do not use individual ramps for each side of the machine.

  • Page 36: Unloading The Machine

    If using a trailer, connect it to the towing vehicle and connect the safety chains. If applicable, connect the trailer brakes and lights. Lower the ramp, ensuring that the angle between the ramp and the ground does not exceed 15 degrees (Figure 34).

  • Page 37: Maintenance

    The mechanical or hydraulic jacks may not failure to use original Toro parts could lead be enough support or may malfunction to serious injury or death. Unauthorized allowing the machine to fall, which could changes to the machine, engine, fuel or cause injury.

  • Page 38: Recommended Maintenance Schedule(S)

    • Check the alternator-belt tension. Every 100 hours • Change the engine oil and filter if not using Toro Premium Engine Oil, but any oil Every 200 hours meeting API classification CJ-4 or higher or as stated in Engine-Oil Specifications.
  • Page 39 Maintenance Service Maintenance Procedure Interval • Check the battery charge. Monthly • Grease the deck drive PTO. • Repack the caster-wheel bearings (more often in dirty or dusty conditions). Yearly • Greasing the caster-wheel hubs. • If you operate the machine less than 200 hours, change the engine oil and filter. Important: Refer to your engine owner's manual for additional maintenance procedures.

  • Page 40: Lubrication

    Lubrication Greasing the Machine Service Interval: Every 400 hours/Yearly (whichever comes first)—Grease the deck-idler pivots. Yearly—Grease the deck drive PTO. Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: No. 2 lithium or molybdenum grease Park the machine on a level surface, disengage the blade-control switch, and engage the parking Lubricating the Drive brake.

  • Page 41: Greasing The Caster Pivots

    Greasing the Caster Pivots Remove a spacer nut from the axle assembly in the caster wheel. Service Interval: Every 400 hours/Yearly (whichever Note: Thread-locking compound has been comes first) (more often in dirty or applied to lock the spacer nuts to the axle. dusty conditions).

  • Page 42: Engine Maintenance

    Engine Maintenance Servicing the Air Cleaner Note: If the foam gasket in the cover is damaged, replace it. Engine Safety Important: Avoid using high-pressure air, which • Shut off the engine before checking the oil or could force dirt through the filter into the intake adding oil to the crankcase.

  • Page 43: Servicing The Engine Oil

    After the first 200 hours—Change the engine oil and filter. Every 200 hours—Change the engine oil and filter if not using Toro Premium Engine Oil, but any oil meeting API classification CJ-4 or higher or as stated in Engine-Oil Specifications.

  • Page 44: Inspecting The Engine-Valve Clearance

    Changing the Engine Oil and Filter If possible, run the engine just before changing the oil because warm oil flows better and carries more contaminants than cold oil. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake.

  • Page 45: Fuel System Maintenance

    Replacing the Water Fuel System Separator Maintenance Service Interval: Every 400 hours—Replace the DANGER fuel-filter canister for the water separator (more often in dirty and In certain conditions, fuel is extremely dusty conditions). flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property.

  • Page 46: Electrical System Maintenance

    Electrical System WARNING Incorrect battery cable routing could damage Maintenance the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Electrical System Safety • Always disconnect the negative (black) • Disconnect the battery before repairing the battery cable before disconnecting the machine.

  • Page 47: Installing The Battery

    Installing the Battery Note: Do not run the machine with the battery disconnected, electrical damage may occur. Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank. g000960 Figure 48 1. Positive battery post 3.

  • Page 48: Drive System Maintenance

    Drive System Align the levers in the front-to-rear position by bringing the levers together to the N EUTRAL Maintenance position, and slide them until they are aligned, then tighten the bolts (Figure 51). 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.

  • Page 49: Checking The Tire Pressure

    Checking the Tire Pressure Adjusting the Caster-Pivot Bearing Service Interval: Every 50 hours/Monthly (whichever comes first) Service Interval: Every 500 hours/Yearly (whichever Rear tire air pressure specification: 124 kPa (18 comes first) psi). Park the machine on a level surface, disengage Note: the blade-control switch, and engage the parking The caster tires are semi-pneumatic tires and...

  • Page 50: Servicing The Gearbox

    Checking the Gearbox-Oil Level Every 400 hours Service Interval: Every 50 hours If the oil becomes contaminated, contact your Toro Distributor because the system must be flushed. Use SAE 75W-90 synthetic gear lube. Contaminated oil looks milky or black when compared Park the machine on a level surface and engage to clean oil.

  • Page 51: Cooling System Maintenance

    Cooling System Maintenance Cooling System Safety • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets. • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns. – Always allow the engine to cool at least 15 minutes before removing the radiator cap.

  • Page 52: Changing The Engine Coolant

    Note: If debris remains, repeat until clean. Operate engine until the engine thermostat opens and the coolant is circulating through the Lower the hood. radiator core. Start the engine to ensure that the fan functions As air purges from the engine block and the properly.

  • Page 53: Brake Maintenance

    Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 400 hours Check to ensure that parking brake is adjusted properly. Follow this procedure also whenever you have removed or replaced a brake component. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake.

  • Page 54: Belt Maintenance

    Belt Maintenance Repeat steps through until a visible gap is achieved and the wheel hub rotates freely. Repeat this procedure for the other side. Inspecting the Belts Note: The brake should fully disengage when the brake is in the released position. Service Interval: Every 50 hours Rotate the drive wheel release handle to Replace the belt if it is worn.

  • Page 55: Checking The Alternator-Belt Tension

    g235768 Figure 60 Rear Discharge Machine Shown g027730 Figure 62 1. Spring 3. Spring-loaded idler pulley 4. Mower belt 2. Square hole in the idler arm for the ratchet Checking the Alternator-Belt Tension Service Interval: Every 100 hours Apply 44 N (10 lb) of force to the alternator belt, midway between the pulleys.

  • Page 56: Controls System Maintenance

    Controls System Maintenance Adjusting the Control-Handle Position There are 2 height positions for the control levers—high and low. Remove the bolts to adjust the height for the operator. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake.

  • Page 57: Adjusting The Motion-Control Damper

    Note: Raise the rear of the machine up and support it The wheels should stop turning or slightly with jack stands (or equivalent support) just high creep in reverse. enough to allow the drive wheels to turn freely. Shut off the machine. Remove the electrical connection from the seat Remove the jumper wire from the wire harness safety switch, located under the bottom cushion...

  • Page 58: Hydraulic System Maintenance

    Note: If the level is not within the notched area Alternate fluids: If the Toro fluid is not available, of the dipstick, add enough high-quality hydraulic Mobil® 424 hydraulic fluid may be used. fluid to raise the level to within the notched area.

  • Page 59: Changing The Hydraulic Fluid And Filter

    Every 800 hours—Change the hydraulic fluid and filter if using Toro Premium Fill each wheel motor with approximately Transmission/Hydraulic Tractor Fluid. 1.4 L (1.5 US qt) of Toro Premium Disengage the PTO, move the motion-control Transmission/Hydraulic Tractor Fluid. levers to the N...

  • Page 60: Mower Deck Maintenance

    Mower Deck Maintenance Blade Safety A worn or damaged blade can break, and a piece of the blade could be thrown toward you or bystanders, resulting in serious personal injury or death. Trying to g006530 Figure 72 repair a damaged blade may result in discontinued safety certification of the product.

  • Page 61: Removing The Blades

    g014973 g014973 Figure 74 Figure 76 1. Blade (in position for measuring) 1. Opposite blade edge (in position for measuring) 2. Level surface 2. Level surface 3. Measured distance between blade and the surface (A) 3. Second measured distance between blade and surface (B) Rotate the same blade 180 degrees so that If the difference between A and B is greater the opposing cutting edge is now in the same...

  • Page 62: Installing The Blades

    g000553 Figure 79 1. Blade 2. Balancer Repeat this procedure until the blade is balanced. Installing the Blades Install the bushing through the blade with the bushing flange on the bottom (grass) side of the blade (Figure 80). g295816 Figure 77 1.

  • Page 63: Leveling The Mower Deck

    • Apply copper-based lubricant or grease to the Side-Discharge Machines: 6.4 mm (1/4 threads of the blade bolt as needed to prevent inch) higher than the front. seizing. Install the blade bolt finger-tight. • Rear-Discharge Machines: should be level Place a wrench on the flat of the spindle shaft with the front.
  • Page 64 g232012 Figure 85 1. Single-point height 3. Rear height-of-cut plate adjustment bolt mounting bolt 2. Front height-of-cut plate g231991 Figure 84 mounting bolt 1. Deck adjustment 3. Adjustment nut To adjust the single-point system, first loosen 2. Jam nut the front and rear height-of-cut plate mounting bolts (Figure 85).
  • Page 65 adjustment bolt by rotating it counterclockwise (Figure 87). Note: Loosen or tighten the single-point adjustment bolt enough to move the height-of-cut plate mounting bolts at least 1/3 the length of the available travel in their slots. This regains some up and down adjustment on each of the 4 deck links.

  • Page 66: Replacing The Grass Deflector

    Replacing the Grass position and ensure that it rotates into the full down position. Deflector Side-Discharge Machines Only WARNING An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Never operate the machine unless you install a mulch plate, discharge deflector, or grass collection system.

  • Page 67: Cleaning

    Cleaning Cleaning the Engine and Exhaust System Area Service Interval: Before each use or daily—Clean the engine and exhaust system area. Important: Do not use water to clean the engine. Use low-pressure compressed air. See the engine owner's manual. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake.

  • Page 68: Storage

    Storage Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: Storage Safety Add a petroleum-based stabilizer/conditioner to fuel in the • Shut off the engine, remove the key, wait for all tank.

  • Page 69: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The starter does not crank. 1. The blade-control switch is engaged. 1. Disengage the blade-control switch. 2. The parking brake is disengaged. 2. Engage the parking brake. 3. The motion-control levers are not in 3.
  • Page 70 Problem Possible Cause Corrective Action The machine does not drive. 1. The bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or 2. Change the belt. broken. 3. The pump belt is off a pulley. 3.

  • Page 71: Schematics

    Schematics SWITCH PTO SWITCH SEAT BRAKE SWITCH NEUTRAL NEUTRAL SWITCH g229105 Electrical Schematic—Machine with Horizon Display Monitor (Rev. A)
  • Page 72 POWER DISTRIBUTION MODULE TO HARNESS B CONNECTOR 43 g229107 Electrical Schematic—Yanmar Engine 3TNV80FT (Rev. A)
  • Page 73 g229106 Electrical Schematic—Yanmar Engine 3TNV88C (Rev. A)
  • Page 74 Notes:...
  • Page 75 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.

This manual is also suitable for:

7202872029Z master professional 7500-d series72076

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