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Toro 74933 Operator's Manual
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Toro 74933 Operator's Manual

Toro 74933 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. 74933—Serial No. 316000001 and Up
Model No. 74934—Serial No. 316000001 and Up
Form No. 3400-935 Rev A
Professional 5000
®
Side
G027429
*3400-935* A

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Summary of Contents for Toro 74933

  • Page 1 Z Master ® Professional 5000 Series Riding Mower with 60in or 72in TURBO FORCE ® Side Discharge Mower Model No. 74933—Serial No. 316000001 and Up Model No. 74934—Serial No. 316000001 and Up G027429 *3400-935* A Register at www.Toro.com. Original Instructions (EN)
  • Page 2 You are responsible for operating the product properly and safely. You may contact Toro directly at www.Toro.com for product safety and operation training material, accessory information, help finding a dealer, or to register your product. Whenever you need service, genuine Toro parts, or additional...

  • Page 3: Table Of Contents

    Contents Checking the Knobs on the Rollover Protection System (ROPS)...........45 Adjusting the Tracking ..........46 Safety ................4 Checking the Tire Pressure ........46 Safe Operating Practices........... 4 Checking the Wheel Lug Nuts ........47 Slope Indicator ............6 Checking the Wheel Hub Slotted Nut ......47 Safety and Instructional Decals .........

  • Page 4: Safety

    Only operate in good light, keeping away from holes and only be made by either the manufacturer or an Authorized hidden hazards. Toro Dealer. • Be sure all drives are in neutral and parking brake is engaged before starting the engine. Only start the engine This product is capable of amputating hands and feet.

  • Page 5: Maintenance And Storage

    Toro equipment, count on Toro • Be aware there is no rollover protection when a folded genuine parts. When it comes to reliability, Toro delivers ROPS is in the down position. replacement parts designed to the exact engineering specifications of our equipment.

  • 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. 58-6520 1. Grease 93-7818 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115-149 N∙m (85-110 ft-lb).
  • Page 8 Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. 115-7445 1. Grease pulleys and spindles 110-2068 2. Maintenance interval—50 hours 1. Read the Operator's Manual. 112-9028 1. Warning—stay away from moving parts; keep all guards in place.
  • Page 9 116-4858 117-3848 1. Thrown-object hazard—keep bystanders a safe distance from the machine. 2. Thrown-object hazard, mower—do not operate the machine without deflector, discharge cover, or grass-collection system in place. 116-8726 3. Cutting/dismemberment of hand or foot—stay away from moving parts; keep all guards and shields in place. 1.
  • Page 10 126-3275 1. Danger - LPG fuel is extremely flammable and vapors are explosive. 2. Read the Operator’s manual. Consult NFPA 58: Liquefied Petroleum Gas Code for additional safety information. 127-0326 3. Do not smoke or replace tank(s) around sources of fuel ignition.
  • Page 11 126-3277 1. IMPORTANT: Use only replacement tank(s) that are free of 7. Remove the empty tank(s). Check the valve and fittings for dents or damage. Match size and type required on tank debris or damaged O-rings. specification decal. 2. Stop the machine on a level surface, disengage the PTO, 8.
  • Page 12 125–9383 1. Check the hydraulic fluid every 50 operating hours. 3. Check the tire pressure every 50 operating hours. 2. Read the Operator’s Manual for information on lubricating 4. Read the Operator’s Manual before servicing or performing the machine. maintenance. 132-0871 1.

  • Page 13: Product Overview

    Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine (Figure 4 Figure g0131 12 Figure 5 1. PTO switch 4. Hour meter/safety-interlock display 2. Throttle control 5. Ignition switch 3. Malfunction-indicator light 6.

  • Page 14: Hour Meter

    Safety-Interlock Indicators its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved The symbols on the hour meter indicate with a black triangle attachments and accessories.

  • Page 15: Specifications

    • Keep LPG vapors and liquid away from your • Only use tanks recommended by Toro. Failure to do so eyes and skin. will result in improper operation of the fuel system. • Contact trained and qualified personnel if the...
  • Page 16 DANGER DANGER LPG fuel is extremely flammable and vapors are LPG fuel is extremely flammable and vapors are explosive. explosive. • In case of fire, take the following steps: A fire or explosion from LPG fuel can burn you, others, and cause property damage. 1.

  • Page 17: Checking The Engine-Oil Level

    • Do not attempt to repair or modify the seconds. valves, fittings, or other tank components. 15. Check for leaks as described in Inspecting the LPG • Only use the Toro approved LPG tank, System (page 41). fittings, and hoses that were designed for your mower.

  • Page 18: Using The Rollover-Protection System (Rops)

    Using the Rollover-Protection System (ROPS) WARNING There is no rollover protection when the roll bar is in the down position. • Lower the roll bar only when absolutely necessary. • Do not wear the seat belt when the roll bar is in the down position.

  • Page 19: Think Safety First

    Think Safety First CAUTION This machine produces sound levels in excess of Please read all safety instructions and symbols in the safety section. Knowing this information could help you or 85 dBA at the operator’s ear and can cause hearing bystanders avoid injury.

  • Page 20: Operating The Mower Blade-Control Switch (Pto)

    Releasing the Parking Brake 2. When the engines starts, release the key. Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start, allow a 15-second cool-down period between attempts. Failure to follow these instructions can burn out the starter motor.

  • Page 21: Shutting Off The Engine

    Shutting Off the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor 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 22: Using The Safety-Interlock System

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

  • Page 23: Driving Forward Or Backward

    Driving Forward or Backward Driving Forward Note: The engine will shut off when you move the The throttle control regulates the engine speed as measured traction-control levers with the parking brake engaged. in rpm (revolutions per minute). Place the throttle control in the F position for best performance.

  • Page 24: Stopping The Machine

    Driving Backward Adjusting the Height-of-Cut 1. Move the levers to the center, unlocked position. Using the Transport Lock 2. To go backward, slowly pull the motion-control levers rearward (Figure 21). The transport lock has 2 positions and is used with the deck-lift pedal.

  • Page 25: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin Adjusting the Anti-Scalp Rollers You can adjust the height of cut to from 25 to 140 mm (1 to 5-1/2 inches) in 6 mm (1/4 inch) increments by locating the Whenever you change the height-of-cut, it is recommended clevis pin into different hole locations.

  • Page 26: Adjusting The Flow Baffle Cam Locks

    Figure 27 Figure 26 1. Anti-scalp roller 4. Flange nut 2. Spacer 5. Bolt Positioning the Flow Baffle 3. Bushing The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and the height of the grass. Adjusting the Flow Baffle Cam Note: If the engine power draws down and the mower Locks...

  • Page 27: Positioning The Seat

    Tall, dense grass mowing conditions • Wet conditions • Lowers the engine-power consumption • Allows increased ground speed in heavy conditions g019755 • This position is similar to the benefits of the Toro SFS Figure 32 mower. 1. Seat latch 2. Seat Figure 30...

  • Page 28: Changing The Seat Suspension

    Changing the Seat Suspension Using the Drive-Wheel-Release Valves The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable. WARNING To adjust, turn the knob in front either direction to provide the best comfort (Figure 33).

  • Page 29: Using The Side Discharge

    Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets, or bystanders avoid injury.

  • Page 30: Loading The Machine

    WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. • Ensure that the ROPS is in the up position and use the seat belt when loading or unloading the machine.
  • Page 31 g027996 Figure 37 1. Full-width ramp in stowed position 2. Side view of full-width ramp in loading position 3. Not greater than 15 degrees 4. Ramp is at least 4 times as long as the height of the trailer or truck bed to the ground 5.

  • Page 32: Operating Tips

    If a blade is damaged or worn, replace ground. However, the cutting height used in the past is it immediately with a genuine Toro replacement blade. generally the best one to use. When cutting grass longer than 15 cm (6 inches) tall, you may want to cut the lawn twice to ensure an acceptable quality of cut.

  • Page 33: Maintenance

    • Adjust the caster pivot bearing. Every 500 hours • Check the parking brake adjustment. • Change the hydraulic filters and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid (more often in dirty or dusty conditions). • Replace the air filter.

  • Page 34: Lubrication

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

  • Page 35: Lubricating The Caster Wheel Hubs

    Lubricating the Caster Wheel Hubs Service Interval: Yearly 1. Shut off the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Figure 40 Figure 42 6. Remove the dust cap and adjust the caster pivots. 1.

  • Page 36: Engine Maintenance

    Engine Maintenance 13. Apply a thread-locking adhesive to the second spacer nut and thread it onto the axle with the wrench flats facing outward. WARNING 14. Torque the nut to 8 to 9 N∙m (75 to 80 in-lb), loosen Contact with hot surfaces may cause personal the nut, then torque it to 2 to 3 N∙m (20 to 25 in-lb).

  • Page 37: Servicing The Engine Oil

    8. Gently slide the primary filter out of the air-cleaner 2. Carefully slide the primary filter over the safety filter body (Figure 44). (Figure 44). Note: Avoid knocking the filter into the side of the Note: Ensure that the primary filter is fully seated by body.

  • Page 38: Changing The Engine Oil

    Changing the Engine Oil 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating Service Interval: After the first 8 hours position (Figure 46). Every 100 hours more often in dirty or dusty conditions.
  • Page 39 5. 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 48). G021395 g027660 Figure 48 6. Start the engine and drive to a flat area. Check the oil level again.

  • Page 40: Servicing The Spark Plug

    Servicing the Spark Plug 4. Remove the spark plug. Service Interval: Every 100 hours Ensure that 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 41: Checking Spark Arrester

    Installing the Spark Plug Fuel System Tighten the spark plug(s) to 22 N∙m (16 ft.-lb). Maintenance Inspecting the LPG System Service Interval: Before each use or daily—Check the LPG tank and components. Every 40 hours—Check the LPG hoses, regulator and connections.

  • Page 42: Servicing The Electronic Fuel Injection System

    Electrical System ◊ Using a small brush or spray bottle, apply the solution around all the fittings of the LPG tank Maintenance and the fuel connection joint. ◊ Slowly open the gas valve a half-turn. Servicing the Battery ◊ If bubbles are detected, the joint or fitting has a leak.

  • Page 43: Charging The Battery

    1. Disengage the blade-control switch (PTO), move the 4. Secure the cables with 2 bolts, 2 washers, and 2 locknuts motion-control levers to the position (Figure 54). NEUTRAL LOCK and set the parking brake. 5. Slide the red terminal boot onto the positive (red) 2.

  • Page 44: Servicing The Fuses

    Servicing the Fuses 2. Ensure that the booster battery is a good and fully charged lead-acid battery at 12.6 V or greater. The electrical system is protected by fuses. It requires Note: Use properly sized jumper cables with short no maintenance, however, if a fuse blows check the lengths to reduce voltage drop between systems.

  • Page 45: Drive System Maintenance

    Drive System 4. Connect the other end of the positive cable to the positive terminal of the booster battery. Maintenance 5. Connect the black negative (–) cable to the other terminal (negative) of the booster battery. 6. Make the final connection on the engine block of Checking the Seat Belt the stalled vehicle (not to the negative battery post) away from the battery and stand back...

  • Page 46: Adjusting The Tracking

    g027424 Figure 61 Left control lever shown 1. Control lever 3. Stop plate g021420 Figure 60 2. Bolt 1. ROPS knob (locked position) 2. Pull ROPS knob out and rotate 90 degrees to change roll Checking the Tire Pressure bar position 3.

  • Page 47: Checking The Wheel Lug Nuts

    Checking the Wheel Lug Nuts 4. Tighten the locknut until the spring washers are flat and then back off a 1/4 turn to properly set the pre-load on Check and torque the wheel lug nuts to 122-129 N-m (90-95 the bearings (Figure 64).
  • Page 48 Removing the Clutch Shim 1. Shut off the engine, wait for all moving parts to stop, and remove the key. 2. Engage the parking brake and allow the machine to cool down completely. 3. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers.

  • Page 49: Cooling System Maintenance

    Cooling System F. Perform the following safety check: i. Sit on the seat and start the engine. Maintenance ii. Ensure the blades do not engage with the PTO switch in the off position and the clutch disengaged. Cleaning the Engine Screen If the clutch does not disengage, install and Engine Oil Cooler the shim and refer to...

  • Page 50: Cleaning The Engine Cooling Fins And Shrouds

    Cleaning the Engine Cooling Check and Clean the Hydraulic Fins and Shrouds Unit Shrouds Service Interval: Every 100 hours/Yearly (whichever comes Service Interval: Before each use or daily first) 1. Disengage the PTO and set the parking brake. 1. Disengage the PTO and set the parking brake. 2.

  • Page 51: Brake Maintenance

    Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Ensure that the brake calipers are adjusted properly before adjusting the parking brake. Note: Perform this procedure also when a brake component has been removed or replaced. DANGER Figure 74 Mechanical or hydraulic jacks may fail to support...

  • Page 52: 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 53: Replacing The Hydraulic Pump Drive Belt

    Figure 77 1. Position the belt cover 3. Ensure the tab is under Figure 78 the metal catch 1. Idler pulley 5. Left hydraulic-pump pulley 2. Slide belt cover under the side catches 2. Clutch pulley 6. Square hole in idler arm 3.

  • Page 54: Controls System Maintenance

    Controls System Maintenance Adjusting the Control Handle Position There are two height positions for the control levers; high and low. Remove the bolts to adjust the height for the operator. 1. Disengage the PTO, move the motion-control levers to position, and set the parking brake. NEUTRAL LOCK 2.

  • Page 55: Adjusting The Motion-Control Damper

    Adjusting the Motion-Control of the jumper wire being used. Run the engine at throttle and release the brake. FULL Damper 6. Run the machine at least 5 minutes with the motion-control levers at full speed to bring The top damper-mounting bolt can be adjusted to obtain a FORWARD the hydraulic fluid up to operating temperature.

  • Page 56: Adjusting The Motion-Control Neutral-Lock Pivot

    See Figure 83 for adjustment NEUTRAL LOCK options. System 1. Loosen the jam nut. Hydraulic Fluid Type: Toro ® HYPR-OIL ™ 500 hydraulic 2. Tighten or loosen the flanged nut to the desired feel. fluid or Mobil ® 1 15W-50.
  • Page 57 Every 500 hours—Change the hydraulic filters and ® ™ hydraulic fluid when using Toro HYPR-OIL 500 hydraulic fluid (more often in dirty or dusty conditions). To replace the hydraulic fluid, you must remove the filters.

  • Page 58: Mower Deck Maintenance

    Mower Deck Maintenance Leveling the Mower Deck Setting Up the Machine Note: Ensure that 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 position NEUTRAL LOCK...
  • Page 59 adjuster by turning it to get 76 mm (3 inch) height (see Figure 89). Turn the adjuster screw clockwise to increase the height, or counterclockwise to decrease the height. Figure 89 Figure 87 1. Whizlock nut 3. Jam nut 1. Deck lift pedal 3.

  • Page 60: Servicing The Cutting Blades

    File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand.

  • Page 61: Removing The Blades

    Toro replacement blades. Replacement blades made 2. Shut off the engine, remove the key, and wait for all by other manufacturers may result in non-conformance with moving parts to stop before leaving the operating safety standards.

  • Page 62: Removing The Mower Deck

    3. Torque the blade bolt to 115 to 150 N∙m (85 to 110 ft-lb). Removing the Mower Deck Before servicing or removing the mower deck, the spring loaded deck arms must be locked out. Figure 95 1. Sharpen at original angle WARNING Deck lift arm assemblies have stored energy.

  • Page 63: Replacing The Grass Deflector

    8. Raise the deck struts and secure them in the up position. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING An uncovered discharge opening could allow the lawn mower to throw objects at you or a bystander result in serious injury or death.

  • Page 64: Cleaning

    Cleaning Storage Cleaning and Storing the Cleaning the Mower Deck Machine Service Interval: Before each use or daily 1. Disengage the power-take off blade-control switch 1. Disengage the blade-control switch (PTO), move the (PTO), set the parking brake, and turn the ignition key motion-control levers to the position NEUTRAL...

  • Page 65: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Malfunction indicator light (MIL) comes on. 1. The engine is too hot. 1. Shut off the engine and let it cool. 2. Faulty valve in fuel tank. 2. Contact an Authorized Service Dealer. 3. The air cleaner is dirty. 3.
  • Page 66 Problem Possible Cause Corrective Action The mower pulls left or right (with levers 1. The tracking needs adjustment 1. Adjust the tracking. fully forward) 2. The tire pressure in drive tires is not 2. Adjust tire pressure in the drive tires. correct.

  • Page 67: Schematics

    Schematics LPG Electrical Dia gram G021490 Wire Diagram (Rev. A)
  • Page 68 Countries Other than the United States or Canada Customers who have purchased Toro products exported from 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.

This manual is also suitable for:

74934Z master professional 5000 series

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