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Toro 72027 Operator's Manual
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Toro 72027 Operator's Manual

Toro 72027 Operator's Manual

With 60in or 72in turbo force side discharge mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
With 60in or 72in TURBO FORCE
Discharge Mower
Model No. 72027—Serial No. 400000000 and Up
Model No. 72030—Serial No. 400000000 and Up
Model No. 72076—Serial No. 409800000 and Up
Form No. 3448-437 Rev A
Professional 7500-D
®
Side
*3448-437*

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Summary of Contents for Toro 72027

  • Page 1 Series Riding Mower With 60in or 72in TURBO FORCE ® Side Discharge Mower Model No. 72027—Serial No. 400000000 and Up Model No. 72030—Serial No. 400000000 and Up Model No. 72076—Serial No. 409800000 and Up *3448-437* Register at www.Toro.com. Original Instructions (EN)
  • Page 2 Authorized Service requirements, the actual engine torque on this class Dealer or Toro Customer Service and have the model of mower will be significantly lower. Please refer to and serial numbers of your product ready.

  • Page 3: Table Of Contents

    Contents The safety-alert symbol (Figure 2) appears both in this manual and on the machine to identify important safety messages that you must follow to avoid Safety ............... 5 accidents. This symbol will appear with the word General Safety ........... 5 Danger, Warning, or Caution.
  • Page 4 Replacing the Water Separator ......43 Checking the Fuel Lines and Connections..........43 Electrical System Maintenance ......44 Electrical System Safety ........44 Servicing the Battery......... 44 Servicing the Fuses .......... 45 Drive System Maintenance ........46 Checking the Seat Belt ........46 Adjusting the Tracking ........

  • Page 5: Safety

    Safety This machine has been designed in accordance with ANSI standard B71.4-2017. General Safety This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury or death. • Read and understand the contents of this Operator’s Manual before starting the engine.

  • Page 6: 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 7: 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. decal58-6520 58-6520 decalbatterysymbols 1. Grease Battery Symbols Some or all of these symbols are on your battery. 1.
  • Page 8 decal116-5988 116-5988 1. Parking brake—engaged 2. Parking brake—disengaged decal116-8283 decal107-3069 116-8283 107-3069 1. Warning—read the Operator's Manual for instructions on 1. Warning–there is no rollover protection when the roll bar is torquing the blade bolt/nut to 75 to 81 N∙m (55 to 60 ft-lb). down.
  • Page 9 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 10 60-inch side-discharge decks only decal126-9573 126-9573 60 Inch Side Discharge Deck 72-inch side-discharge decks only decal126-9275 126-9275 decal126-9276 126-9276 1. Belt routing 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 11 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 12 135-2837 before performing any maintenance; check the 1. Read the Operator’s Manual for more information; Use torque after the first 100 red Toro wet-clutch transmission fluid; do not use green hours, then every 500 hydraulic fluid. hours, thereafter. 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

    To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the...

  • Page 17: 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 18: Adding Fuel

    Adding Fuel Fill the fuel tank to the bottom of the filler neck (Figure Note: Do not fill the fuel tank completely full. Recommended Fuel The empty space in the tank allows the fuel to expand. The engine runs on clean, fresh diesel fuel with a minimum cetane rating of 40.

  • Page 19: Using The Rollover Protection System (Rops)

    Using the Rollover Protection System (ROPS) WARNING To avoid injury or death from rollover, keep the roll bar in the fully raised, locked position and use the seat belt. Ensure that the seat is secured to the machine. WARNING There is no rollover protection when the roll g225804 Figure 8 bar is in the down position.

  • Page 20: Using The Safety-Interlock System

    Using the Safety-Interlock operate as described below, have an Authorized Service Dealer repair the safety system immediately. System Sit on the seat, engage the parking brake, and move the blade-control switch (PTO) to the O position. Try starting the engine; the engine WARNING should not start.

  • Page 21: Unlatching The Seat

    Unlatching the Seat During Operation To unlatch the seat, push the seat latch forward During Operation Safety (Figure 12). General Safety • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage. • Use your full attention while operating the machine.
  • Page 22 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 23 – 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 24: Operating The Parking Brake

    Operating the Parking Operating the Mower Brake Blade-Control Switch (PTO) Always engage the parking brake when you stop the The blade-control switch (PTO) starts and stops the machine or leave it unattended. mower blades and any powered attachments. Engaging the Parking Brake Engaging the Blade-Control Switch (PTO) Park the machine on a level surface.

  • Page 25: Starting The Engine

    Starting the Engine Shutting Off the Engine Important: Do not engage the starter for more CAUTION than 5 seconds at a time. If the engine fails to start, wait 15 seconds between attempts. Failure Children or bystanders may be injured if they to follow these instructions can burn out the move or attempt to operate the machine while starter motor.

  • 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 Anti-Scalp Rollers 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 For maximum deck flotation, install the rollers 1 hole clevis pin into different hole locations.

  • Page 29: Adjusting The Flow Baffle Knob

    Adjusting the Flow Baffle Knob This procedure applies only to machines with the flow baffle knob. Certain models have nuts and bolts instead of the flow baffle knob that you can adjust the same way. You can adjust the mower discharge flow for different types of mowing conditions.

  • Page 30: Positioning The Flow Baffle

    Positioning the Flow Baffle 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. Position A This is the fully-rear position.

  • Page 31: Operating With The Overheat Sensor

    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. Note: If the engine-coolant level is below the indicator line on the overflow bottle when the engine is cold, the...

  • Page 32: 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 33: After Operation

    After Operation Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. After Operation Safety Use the drive-wheel release valves to release the hydrostatic drive system, which allows you to push the machine without the running the General Safety engine.
  • Page 34 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 33). • Use only a full-width ramp; do not use individual ramps for each side of the machine.
  • Page 35 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 33).

  • Page 36: Maintenance

    • 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 37 • Grease the caster pivots (more often in dirty or dusty conditions). • Service the air cleaner (More frequently in extremely dusty or dirty conditions). • Change the engine oil and filter if using Toro Premium Engine Oil (API classification CK-4 or higher) (more often in dirty or dusty conditions).

  • Page 38: 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 39: 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 40: 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 • Keep your hands, feet, face, other body parts, could force dirt through the filter into the intake and clothing away from the muffler and other hot tract.

  • Page 41: 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 42: 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 43: 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 44: Electrical System Maintenance

    Electrical System Disengage the blade-control switch (PTO), move the motion-control levers to the N EUTRAL LOCK Maintenance position, and engage the parking brake. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the Electrical System Safety operating position.

  • Page 45: Servicing The Fuses

    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 47 1. Positive battery post 3.

  • Page 46: 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 50). 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 47: 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 48: 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 49: 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 50: 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 51: 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 52: 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 53: Checking The Alternator-Belt Tension

    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. If the deflection is not 10 mm (3/8 inch), loosen the alternator mounting bolts (Figure 61). g235769 Figure 59 1.

  • Page 54: 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 55: 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 56: 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 57 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 58: 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 70 servicing the blades. Only replace or sharpen the 1.
  • Page 59 g014973 g014973 Figure 72 Figure 74 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 60 g000553 Figure 77 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 78). g295816 Figure 75 1.

  • Page 61: Leveling The Mower Deck

    Apply copper-based lubricant or grease to the threads of the blade bolt as needed to prevent seizing. Install the blade bolt finger-tight. Place a wrench on the flat of the spindle shaft and torque the blade bolt to 75 to 81 N∙m (55 to 60 ft-lb).
  • Page 62 g232012 Figure 83 1. Single-point height 3. Rear height-of-cut plate adjustment bolt mounting bolt 2. Front height-of-cut plate g231991 Figure 82 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 83).
  • Page 63 the length of the available travel in their slots. This regains some up and down adjustment on each of the 4 deck links. g009042 Figure 85 1. Single-point-adjustment bolt Tighten the 2 bolts at the bottom of the height-of-cut plate (Figure 83).

  • Page 64: Replacing The Grass Deflector

    Replacing the Grass Deflector 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 65: 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 66: Storage

    Storage Check the condition of the blades; refer to Servicing the Cutting Blades (page 58). 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 67: 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 68 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 69: Schematics

    Schematics SWITCH PTO SWITCH SEAT BRAKE SWITCH NEUTRAL NEUTRAL SWITCH g229105 Electrical Schematic—Machine with Horizon Display Monitor (Rev. A)
  • Page 70 POWER DISTRIBUTION MODULE TO HARNESS B CONNECTOR 43 g229107 Electrical Schematic—Yanmar Engine 3TNV80FT (Rev. A)
  • Page 71 g229106 Electrical Schematic—Yanmar Engine 3TNV88C (Rev. A)
  • Page 72 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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