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Toro Z Master 74927 Operator's Manual
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Toro Z Master 74927 Operator's Manual

Riding mower with 52in, 60in or 72in turbo force side discharge mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
with 52in, 60in or 72in TURBO FORCE
Discharge Mower
Model No. 74923—Serial No. 313000001 and Up
Model No. 74925—Serial No. 313000001 and Up
Model No. 74927—Serial No. 313000001 and Up
Form No. 3375-623 Rev A
Professional 6000
®
Side
g019752
*3375-623* A

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Summary of Contents for Toro Z Master 74927

  • Page 1 52in, 60in or 72in TURBO FORCE ® Side Discharge Mower Model No. 74923—Serial No. 313000001 and Up Model No. 74925—Serial No. 313000001 and Up Model No. 74927—Serial No. 313000001 and Up g019752 *3375-623* A Register at www.Toro.com. Original Instructions (EN)

  • Page 2: Introduction

    Whenever you need service, genuine Toro parts, or additional WARNING information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of CALIFORNIA your product ready. Figure 1 identifies the location of the Proposition 65 Warning model and serial numbers on the product.

  • Page 3: Table Of Contents

    Contents Checking the Rollover Protection System (ROPS) Knobs...............42 Adjusting the Tracking ..........42 Introduction ..............2 Checking the Tire Pressure ........43 Safety ................4 Checking the Wheel Lug Nuts ........43 Safe Operating Practices........... 4 Checking the Wheel Hub Slotted Nut ......43 Slope Indicator ............

  • Page 4: Safety

    Operation Safety • Lightning can cause severe injury or death. If lightning is seen or thunder is heard in the area, do not operate Improper use or maintenance by the operator or owner can the machine; seek shelter. result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety •...
  • Page 5 Safe handling of fuels • Use care when checking blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only • To avoid personal injury or property damage, use replace blades. Never straighten or weld them. extreme care in handling gasoline. Gasoline is extremely •...

  • Page 6: 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 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 lost. 68-8340 1-403005 98-5954 103–2076 54-9220 58-6520 1. Grease 105-7798 66-1340...
  • Page 8 110-2067 110-2068 1. Read the Operator's Manual. 107-2102 114-4466 1. Main, 25A 3. Charge, 25A 2. PTO, 10A 4. Auxiliary, 15A 116-1716 1. Fuel 6. Hour meter 109-7232 2. Empty 7. PTO 8. Parking brake 3. Half 4. Full 9. Neutral 5.
  • Page 9 116-0205 115-7445 1. Grease pulleys and spindles 2. Maintenance interval—50 hours 116-0211 116-0090 116-0752 116-0157 1. Locked 2. Unlocked 116-2643...
  • Page 10 116-3303 120-5897 1. Choke 4. Slow 2. Fast 5. Power take-off (PTO), Blade control switch 3. Continuous variable setting 116-4858 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance from the battery.
  • Page 11 109-7069...

  • Page 12: Product Overview

    Hour Meter Product Overview The hour meter records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance (Figure 6). Fuel Gauge The fuel gauge is located with the hour meter and the bars light up when the ignition switch is on (Figure 6).

  • Page 13: Specifications

    A selection of Toro approved attachments and accessories are available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories. Specifications Note: Specifications and design are subject to change without notice.

  • Page 14: Operation

    Operation DANGER In certain conditions during fueling, static Note: Determine the left and right sides of the machine electricity can be released causing a spark which from the normal operating position. can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can Adding Fuel damage property.

  • Page 15: Checking The Engine Oil Level

    Filling the Fuel Tank Breaking In a New Machine Note: Do not fill the fuel tank completely full. Fill the fuel New engines take time to develop full power. Mower decks tank to the bottom of the filler neck. The empty space in the and drive systems have higher friction when new, placing tank allows the gasoline to expand.

  • Page 16: Think Safety First

    DANGER Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. There is no rollover protection when the roll bar is down.

  • Page 17: Operating The Parking Brake

    Operating the Mower Blade The use of protective equipment for eyes, ears, feet and head is recommended. Control Switch (PTO) The blade control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Blade Control Switch G009027 (PTO) Figure 10...

  • Page 18: Operating The Choke

    Operating the Choke Use the choke to start a cold engine. 1. If the engine is cold, use the choke to start the engine. 2. Pull up on the choke knob to engage the choke before using the ignition switch (Figure 16). 3.
  • Page 19 Stopping the Engine 5. Move the throttle lever midway between the Slow and Fast positions. CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes.

  • Page 20: The Safety Interlock System

    The Safety Interlock System 1. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to on. Try starting the engine; the engine should not crank. CAUTION 2. Sitting on the seat, engage the parking brake and move If safety interlock switches are disconnected or the blade control switch (PTO) to off.
  • Page 21 Using the Motion Control Levers G008952 Figure 24 Driving Backward Figure 23 1. Motion control 4. Backward 1. Move the levers to the center, unlocked position. lever-neutral lock position 2. To go backward, slowly pull the motion control levers 2. Center, unlocked position 5.

  • Page 22: Stopping The Machine

    Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the power take off (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 in Operation.

  • Page 23: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin The height-of-cut is adjusted from 1 to 5-1/2 inches (25 to 140 mm) in 1/4 inch (6 mm) increments by relocating the clevis pin into different hole locations. 1. Move the transport lock to the lock position. 2.

  • Page 24: Adjusting The Flow Baffle Cam Locks

    Adjusting the Flow Baffle Cam Positioning the Flow Baffle Locks The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and This procedure is applicable only to machines with the flow height of grass. baffle locks.

  • Page 25: Positioning The Seat

    Use in wet conditions. • Lowers the engine power consumption. • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro SFS mower. g019755 Figure 36 1. Seat latch 2. Seat Changing the Seat Suspension The seat can be adjusted to provide a smooth and comfortable ride.

  • Page 26: Using The Drive Wheel Release Valves

    Using the Drive Wheel Release Valves WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. Stop the engine, remove the key, and allow all moving parts to stop before accessing the drive wheel release valves.

  • Page 27: Using The Side Discharge

    Using the Side Discharge Transporting Machines The mower has a hinged grass deflector that disperses Use a heavy-duty trailer or truck to transport the machine. clippings to the side and down toward the turf. Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law.

  • Page 28: Loading Machines

    Loading Machines Use extreme caution when loading units on trailers or trucks. One full width ramp that is wide enough to extend beyond the rear tires is recommended instead of individual ramps for each side of the unit (Figure 40). The lower rear section of the machine frame extends back between the rear wheels and serves as a stop for tipping backward.

  • Page 29: Operating Tips

    File down any nicks and sharpen the it is late fall when grass grows more slowly. blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade. Mowing Direction Alternate mowing direction to keep the grass standing straight.

  • Page 30: Maintenance

    • Check the torque for wheel lug nuts. Every 500 hours • Adjust the caster pivot bearing. • Check the park brake adjustment. • Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil. • Check the battery. Monthly •...

  • Page 31: Lubrication

    CAUTION If you leave the key in the ignition switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the ignition before you do any maintenance. Lubrication Where to Grease the Mower Service Interval: Every 50 hours—Grease the mower deck Greasing and Lubrication spindles and idler arm.

  • Page 32: Lubricate Caster Wheel Hubs

    Lubricate Caster Wheel Hubs Service Interval: Yearly 1. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Figure 43 Figure 45 1. Seal guard 2. Spacer nut with wrench flats 6. Remove the dust cap and adjust the caster pivots. Keep the dust cap off until greasing is done.

  • Page 33: Engine Maintenance

    Engine Maintenance Reinstall the seal guards over the wheel hub and insert wheel into caster fork. Reinstall caster bolt and tighten nut fully. WARNING Important: To prevent seal and bearing damage, check Contact with hot surfaces may cause personal the bearing adjustment often. Spin the caster tire. The tire should not spin freely (more than 1 or 2 revolutions) injury.

  • Page 34: Servicing The Engine Oil

    Servicing the Engine Oil Note: There are different oil capacities for the engines. Ensure the correct capacity is used. Oil Type: Detergent oil (API service SG, SH, SJ, or SL) Oil Capacity: with a filter change, 77 ounces (2.3 L); without a filter change, 70 ounces (2.1 L) Viscosity: See the table below.
  • Page 35 Changing the Engine Oil Service Interval: After the first 8 hours Every 100 hours (more often in dirty or dusty conditions) Note: Dispose of the used oil at a recycling center. G008804 1. Park the machine so that the rear is slightly lower than the front to ensure the oil drains completely.
  • Page 36 4. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 50). G008804 G008796 Figure 50 5. Start the engine and drive to a flat area. Check the oil level again.

  • Page 37: Servicing The Spark Plug

    Servicing the Spark Plug Service Interval: Every 100 hours Make sure the air gap between the center and side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.

  • Page 38: Check Spark Arrester (If Equipped)

    Checking the Spark Plug Check Spark Arrester (if equipped) Important: Never clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, Service Interval: Every 50 hours worn electrodes, an oily film, or cracks. If you see light brown or gray on the insulator, the engine is WARNING operating properly.

  • Page 39: Fuel System Maintenance

    Servicing the Fuel Tank Fuel System Maintenance Do not attempt to drain the fuel tank. Ensure that an Authorized Service Dealer drains the fuel tank and services any components of the fuel system. Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions).

  • Page 40: Electrical System Maintenance

    Electrical System 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position Maintenance and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Servicing the Battery 3.

  • Page 41: Servicing The Fuses

    Servicing the Fuses 4. Secure the cables with 2 bolts, 2 washers, and 2 locknuts (Figure 57). The electrical system is protected by fuses. It requires 5. Slide the red terminal boot onto the positive (red) no maintenance, however, if a fuse blows check the battery post.

  • Page 42: Drive System Maintenance

    Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if damaged. Checking the Rollover Protection System (ROPS) Knobs Service Interval: Before each use or daily Check that both the mounting hardware and the knobs are in good working condition.

  • Page 43: Checking The Tire Pressure

    Checking the Wheel Lug Nuts Check and torque the wheel lug nuts to 90-95 ft-lb (122-129 N-m). Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours See Figure 63 to determine which slotted nut has been installed on the unit.

  • Page 44: Adjusting The Caster Pivot Bearing

    Using the Clutch Shim 6. Then tighten nut until the next set of slots line up with the cross hole in shaft. Do not loosen nut to Some later model year units have been built with clutches that align the slot. If required, tighten to the next set contain a brake shim.
  • Page 45 A. Loosen both brake mounting bolts one-half to one full turn as shown below. Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.

  • Page 46: Cooling System Maintenance

    Cooling System Maintenance Cleaning the Engine Screen and Engine Oil Cooler Service Interval: Before each use or daily Remove any build-up of grass, dirt or other debris from the oil cooler (Figure 72). G008804 Figure 73 1. Engine guard 4. Fan housing 2.

  • Page 47: Check And Clean The Hydraulic Unit Shrouds

    Check and Clean the Hydraulic Brake Maintenance Unit Shrouds Adjusting the Parking Brake Service Interval: Before each use or daily 1. Disengage the PTO and set the parking brake. Service Interval: After the first 100 hours 2. Stop the engine, remove the key, and wait for all moving Every 500 hours thereafter parts to stop before leaving the operating position.

  • Page 48: Belt Maintenance

    Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Check the belts for squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn mower belt. Replace the mower belt if any of these conditions are evident.
  • Page 49 Figure 78 1. Position the belt cover 3. Ensure the tab is under the metal catch 2. Slide belt cover under the side catches Figure 77 1. Clutch pulley 5. Square hole in the idler arm for the ratchet 2. Mower belt 6.

  • Page 50: Replacing The Hydraulic Pump Drive Belt

    Replacing the Hydraulic Pump Controls System Drive Belt Maintenance 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving Adjusting the Control Handle parts to stop before leaving the operating position. Position 3.

  • Page 51: Adjusting The Motion Control Linkage

    6. Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature. Note: The motion control lever needs to be in neutral while making any necessary adjustments. 7. Bring the motion control levers into the neutral position.

  • Page 52: Adjusting The Motion Control Neutral Lock Pivot

    Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro ® HYPR-OIL ™ 500 hydraulic oil or Mobil ® 1 15W-50. Important: Use oil specified. Other fluids could cause system damage. Figure 83 Each Hydraulic System Oil Capacity: 52 ounces (1.5 l) per...
  • Page 53 ® 1 15W-50 oil. Every 500 hours—Change the hydraulic filters and ® ™ hydraulic oil when using Toro HYPR-OIL hydraulic oil. To replace the hydraulic oil, the filters need to be removed. Replace both at the same time. 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.

  • Page 54: Mower Deck Maintenance

    Mower Deck Maintenance Leveling the Mower Deck Setting Up the Machine Note: Ensure the mower deck is leveled before matching the height-of-cut (HOC). 1. Position mower on a flat surface. 2. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.
  • Page 55 10. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 90). To increase the height, turn the adjustment nut clockwise; to decrease, turn counterclockwise. G017027 Figure 88 1. Deck lift pedal 3. Transport lock 2. Height of cut pin 6.
  • Page 56 15. On both sides of the deck, measure from the level surface to the back tip of the blade (Postion B). The measurement should read 3 1/4 inches (8.3 cm) (Figure 89). 16. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 90).

  • Page 57: Servicing The Cutting Blades

    If a blade is damaged or worn, replace the cutting edge, position A, of the blades (Figure 94). it immediately with a genuine Toro replacement blade. For Note this dimension. convenient sharpening and replacement, you may want to keep extra blades on hand.
  • Page 58 If the genuine Toro replacement blades. Replacement blades made blade is not balanced, file some metal off the end of by other manufacturers may result in non-conformance with the sail area only (Figure 98).

  • Page 59: Removing The Mower Deck

    Installing the Blades Removing the Mower Deck 1. Install the blade onto the spindle shaft (Figure 98). Before servicing or removing the mower deck, the spring loaded deck arms must be locked out. Important: The curved part of the blade must be pointing upward toward the inside of the mower to WARNING ensure proper cutting.
  • Page 60 Figure 100 1. Right stabilizer Figure 99 2. Deck strut (right side shown) 1. Clutch pulley 5. Square hole in the idler 3. Remove the rear deck lift attachment shoulder bolt and nut. arm for the ratchet 4. Remove the front deck lift attachment shoulder bolt and nut. 2.

  • Page 61: Replacing The Grass Deflector

    Replacing the Grass Deflector Cleaning WARNING Cleaning Under the Mower An uncovered discharge opening could allow the lawn mower to throw objects in the operator's or Service Interval: Before each use or daily bystander's direction and result in serious injury. 1.

  • Page 62: Storage

    Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. Cleaning and Storage D. Restart the engine and run it until it stops. 1. Disengage the power take off (blade control switch E.

  • Page 63: 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 64 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 65: Schematics

    Schematics Wire Diagram (Rev. A)
  • Page 66 Notes:...
  • Page 67 Notes:...
  • Page 68 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. If all other remedies fail, you may contact us at Toro Warranty Company.

This manual is also suitable for:

Z master 74923Z master 74925Z master professional 6000

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