Toro 74534 Operator's Manual
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Toro 74534 Operator's Manual

Mower with 36in or 40in turbo force cutting unit
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Original Instructions (EN)
GrandStand
With 36in or 40in TURBO FORCE
Unit
Model No. 74534—Serial No. 314000001 and Up
Model No. 74536—Serial No. 314000001 and Up
Model No. 79534—Serial No. 314000001 and Up
Form No. 3390-401 Rev A
®
Mower
®
Cutting
g020526
*3390-401* A

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Summary of Contents for Toro 74534

  • Page 1 ® Mower With 36in or 40in TURBO FORCE ® Cutting Unit Model No. 74534—Serial No. 314000001 and Up Model No. 74536—Serial No. 314000001 and Up Model No. 79534—Serial No. 314000001 and Up g020526 *3390-401* 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 and 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

    Cooling System Maintenance ........43 Safety ................4 Cleaning the Air-Intake Screen .........43 Safe Operating Practices........... 4 Cleaning the Cooling System........43 Toro Mower Safety ..........6 Brake Maintenance ............43 Slope Indicator ............7 Servicing the Brake ..........43 Safety and Instructional Decals ......... 8 Belt Maintenance ............44...

  • Page 4: Safety

    Do not standards and with the instructions in this Operator’s operate unless they are functioning properly. Manual. Modifications to this machine should only be made by either the manufacturer or an Authorized Toro Operation Dealer. •...

  • Page 5: Maintenance And Storage

    Maintenance and Storage • Keep pets and bystanders away from an operating machine. • Disengage drives, set the parking brake, stop the engine, • Slow down and use caution when making turns and and remove the key or disconnect spark-plug wire. Wait crossing roads and sidewalks.

  • Page 6: Toro Mower Safety

    Do not make sudden changes in speed or direction. • Mow slopes side to side. The following list contains safety information specific to Toro products and other safety information you must know. • Do not mow slopes greater than 20 degrees.

  • Page 7: Slope Indicator

    Slope Indicator G011841 Figure 2 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 20 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 20 degrees. Fold along the appropriate line to match the recommended slope.

  • Page 8: 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. Manufacturer's Mark 1. Indicates the blade is identified as a part from the original 93-7818 machine manufacturer.
  • Page 9 116-8775 115-4186 1. Read the Operator’s 2. Fill to bottom of filler neck; Manual warning—Do not overfill 1. Interval the tank 2. Power Take-off (PTO) 3. Parking brake 4. Neutral 5. Operator presence switch 6. Battery 115-4212 1. Hydraulic oil level 3.
  • Page 10 119-0217 1. Warning—stop the engine; stay away from moving parts; keep all guards and shields in place. 119-1854 1. Adjustment knob for traction drive speed. 119-0186 36-inch Mower Deck 1. Belt routing 119-2317 1. Height-of-cut (inches) 121-6049 119-0187 1. Thrown object 3.
  • Page 11 117-0454 1. Traction control 5. Reverse 3. Slow 7. Operator presence switch 2. Fast 4. Neutral 6. Power Take-off (PTO)—disengage 117-3626 1. Warning—read the Operator's Manual. 5. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Warning—do not operate this machine unless you are trained. 6. Warning—engage the parking brake, stop the engine and remove the spark plug wire before performing any maintenance on the machine.

  • Page 12: Product Overview

    Product Overview G020529 G020528 Figure 4 Figure 3 1. Fuel cap 7. Hour meter 1. Side-discharge chute 7. Operator cushion 2. Height-of-cut lever 8. Choke 2. Battery 8. Platform (down position) 3. Blade-control switch 9. Ignition switch 3. Engine 9. Hydraulic tank (PTO) 4.

  • Page 13: Specifications

    A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories.

  • Page 14: Operation

    Operation DANGER In certain conditions during fueling, static Adding Fuel electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion • For best results, use only clean, fresh (less than 30 days from gasoline can burn you and others and can old), unleaded gasoline with an octane rating of 87 or damage property.

  • Page 15: Checking The Engine-Oil Level

    Think Safety First of varnish deposits in the fuel system, use fuel stabilizer at all times. Carefully read all the safety instructions and decals in the safety section. Knowing this information could help you or Filling the Fuel Tank any bystanders avoid injury. Note: Do not fill the fuel tank completely full.

  • Page 16: Operating The Mower-Blade-Control Switch (Pto)

    Setting the Parking Brake Disengaging the Mower Blades (PTO) The following are two options for disengaging the mower Pull the parking-brake lever rearward to the engaged position blades. (Figure • Push the blade-control switch (PTO) down to the Off position (Figure 10).

  • Page 17: Operating The Ignition Switch

    Using the Fuel-Shutoff Valve 2. Pull up on the choke knob to engage the choke before using the ignition switch (Figure 13). The fuel shut-off valve is located behind the right side of the 3. Push down on the choke to disengage the choke after operator cushion.

  • Page 18: Stopping The Engine

    Stopping 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. Let the engine idle at slow throttle (turtle) for 60 seconds before turning the ignition switch off.

  • Page 19: 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 safety-interlock switches are disconnected or Note: If the safety system does not operate as described damaged the machine could operate unexpectedly below, have an Authorized Service Dealer repair the safety causing personal injury.

  • Page 20: Operating The Platform

    WARNING The operator platform is heavy and may cause injury when lowering and raising the operator platform. The platform may suddenly drop if not supported when the latch pin is pulled out. • Do not put your hands or fingers in the platform-pivot area when lowering or raising the operator platform.
  • Page 21 Driving Forward 1. Release the parking brake; refer to Releasing the Parking Brake (page 16). 2. Move the right side motion-control lever to the center, unlocked position. Figure 22 Driving Backward 1. Move the right side motion-control lever to the center, unlocked position.

  • Page 22: Stopping The Machine

    Stopping the Machine To stop the machine, move the motion-control levers to neutral, move the right side motion-control lever into the neutral-lock position, disengage the power take off (PTO), and turn the ignition key to off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 16).

  • Page 23: Loading Machines

    WARNING Loading a unit onto a trailer or truck increases the possibility of backward tip-over, and could cause serious injury or death. • Use extreme caution when operating a unit on a ramp. • Use only a single, full-width ramp; do not use individual ramps for each side of the unit.

  • Page 24: Side Discharging Or Mulching The Grass

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

  • Page 25: Positioning The Flow Baffle

    Positioning the Flow Baffle Position B Use this position when bagging (Figure 30). The following figures are only for recommended use. Adjustments will 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 up the baffle.

  • Page 26: Using Counterweights

    Using Counterweights • Weights are installed to improve handling, balance and improve performance. • Weights can be added or removed to create optimized performance under different mowing conditions and for operator preference. • It is recommended that weights be added or removed one at a time until the desired handing and balance is achieved.

  • Page 27: Maintenance

    • Change the hydraulic oil when using Mobil® 1 oil. Every 250 hours • Adjust the caster-pivot bearing. • Change the hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil. Every 500 hours • Change the hydraulic filter. • Paint chipped surfaces.

  • Page 28: Premaintenance Procedures

    Premaintenance Procedures Raising the Mower for Access The front of the mower can be raised and supported on its back for access under the machine for maintenance. 1. Raise the platform; refer to Operating the Platform (page 20). 2. Remove the battery. Figure 33 1.

  • Page 29: Releasing The Cushion For Rear Access

    g012572 Figure 35 Figure 34 1. Remove battery 2. With 2 people, lift the front end of the mower (ensure the platform is up) Releasing the Cushion for Rear Access The cushion can be released for rear access to the machine for maintenance or adjustment.

  • Page 30: Lubrication

    Lubrication Grease with No. 2 general purpose lithium base or molybdenum base grease. Lubricating the Machine Service Interval: Every 50 hours—Grease the mower-deck idler arms (more often in dirty or dusty conditions). Every 50 hours—Grease the lift linkage (more often in dirty or dusty conditions).

  • Page 31: Lubricating The Caster-Wheel Hubs

    Lubricating the Caster-Wheel 13. Torque the nut to 8 to 9 N-m (71 to 80 in-lb), loosen, then torque it to 2 to 3 N-m (20 to 25 in-lb). Hubs Note: Make sure axle does not extend beyond either Service Interval: Yearly nut.

  • Page 32: Engine Maintenance

    Engine Maintenance 2. Dry the element by squeezing it in a clean cloth. Important: Replace the foam element if it is torn or worn. Servicing the Air Cleaner Servicing the Paper Air-Cleaner Service Interval/Specification Element Inspect the foam and paper elements and replace them if they Service Interval: Every 50 hours—Clean the paper are damaged or excessively dirty.
  • Page 33 g020534 Figure 41 Checking the Engine-Oil Level Note: Check the oil when the engine is cold. WARNING Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Important: Do not overfill the crankcase with oil because damage to the engine may result.

  • Page 34: Changing The Engine Oil

    Changing the Engine Oil Note: Dispose of the used oil at a recycling center. 1. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. 2. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake.

  • Page 35: 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 g020534 plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.

  • Page 36: Checking The Spark Arrester (If Equipped)

    Checking the Spark Plug Checking the Spark Arrester (if equipped) Important: Do not 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 37: Fuel System Maintenance

    Servicing the Fuel Filter Fuel System Maintenance Replacing the Fuel Filter Service Interval: Yearly Draining the Fuel Tank Never install a dirty filter if it is removed from the fuel line. Note: There is no other recommended way to drain fuel Note: The fuel filter is installed in order to install the new from the tank, other than using a syphon pump.

  • Page 38: Electrical System Maintenance

    Electrical System WARNING Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in Servicing the Battery personal injury. • Always Disconnect the negative (black) battery Service Interval: Every 100 hours cable before disconnecting the positive (red) Always keep the battery clean and fully charged.

  • Page 39: Servicing The Fuses

    6. Install the battery onto the machine and connect the battery cables; refer to Installing the Battery (page 38). Note: Do not run the machine with the battery disconnected; electrical damage may occur. Figure 52 1. Positive Battery Post 3. Red (+) Charger Lead 2.

  • Page 40: Drive System Maintenance

    Drive System Maintenance Adjusting the Tracking Note: Determine the left and right sides of the machine from the normal operating position. 1. Push both control levers forward the same distance. 2. Check if the machine pulls to one side. Note: If it does, stop the machine and set the parking brake.

  • Page 41: Checking The Tire Pressure

    Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) Maintain the air pressure in the rear tires at 83 to 97 kPa (12 to 14 psi). Important: Uneven tire pressure can cause an uneven cut. Note: The front tires are semi-pneumatic tires and do not require air-pressure maintenance.

  • Page 42: Adjusting The Electric Clutch

    Figure 59 1. Adjusting nut 3. Feeler gauge 2. Slot Figure 58 1. Spring washers 3. Dust cap 2. Locknut Adjusting the Electric Clutch Service Interval: Every 100 hours—Check the electric clutch. The clutch is adjustable to ensure proper engagement and proper braking.

  • Page 43: Cooling System Maintenance

    Brake Maintenance Cooling System Maintenance Servicing the Brake Before each use, check brakes on both a level surface and Cleaning the Air-Intake Screen slope. Always set the parking brake when you stop the machine Service Interval: Before each use or daily or leave it unattended.

  • Page 44: Belt Maintenance

    Adjusting the Brakes Belt Maintenance If the gap between the brake bar and tire is not correct, an adjustment is required. Checking the Belts 1. Park the machine on a level surface and disengage the Service Interval: Every 100 hours—Check the pump-drive PTO, and set the parking brake.

  • Page 45: Replacing The Mower-Deck Belts For 40-Inch Mowers

    Replacing the Mower-Deck Belts for 40-inch Mowers Important: The fasteners on the covers of this machine are designed to remain on the cover after removal. Loosen all of the fasteners on each cover a few turns so that the cover is loose but still attached, then go back and loosen them until the cover comes free.

  • Page 46: Replacing The Pump-Drive Belt

    Replacing the Left Mower-Deck Belt 1. Disengage the PTO 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. 3. Loosen the bolts and remove the belt covers with the bolts attached to them.

  • Page 47: Controls System Maintenance

    Controls System Maintenance Adjusting the Motion-Control-Handle Positions Adjusting the Right Side Motion-Control Lever If the motion-control levers do not align horizontally, adjust the right side motion-control lever. Note: Adjust the horizontal alignment before the front to back alignment. 1. Disengage the PTO, move the right side motion-control lever to the neutral position, and set the parking brake.
  • Page 48 Adjusting the Neutral Position for the Motion-Control Levers Important: Ensure the tracking of the mower is correct after adjusting the motion-control levers. Adjusting the tracking and aligning the motion-control levers front to back is the same procedure (Figure 69). Note: Adjust the horizontal alignment before the front to back alignment.

  • Page 49: Hydraulic System Maintenance

    (Figure 71). System 9. Install the cap on the filler neck. ® ™ Hydraulic Oil Type: Toro HYPR-OIL 500 hydraulic oil WARNING ® or Mobil 1 15W-50 synthetic motor oil. Hydraulic fluid escaping under pressure can Hydraulic System Oil Capacity: 2.0 L (67 oz)
  • Page 50 Replacing the Hydraulic Filter Service Interval: After the first 8 hours Every 500 hours/Yearly (whichever comes first) WARNING Hot hydraulic fluid can cause severe burns. Allow the hydraulic fluid to cool before performing any maintenance to the hydraulic system. 1. Disengage the PTO and set the parking brake. Figure 72 2.

  • Page 51: Bleeding The Hydraulic System

    Checking the Hydraulic Lines Service Interval: Every 100 hours Check hydraulic hoses and hoses for leaks, loose fittings, kinked hoses, loose mounting supports, wear, general weathering, and chemical deterioration. Make any necessary repairs before operating. Note: Keep areas around the hydraulic system clean from grass and debris buildup.

  • Page 52: Mower Deck Maintenance

    Mower Deck Checking for Bent Blades 1. Disengage the PTO, move the motion-control levers to Maintenance the neutral-locked position, and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving Servicing the Cutting Blades parts to stop before leaving the operating position.

  • Page 53: Leveling The Mower Deck

    To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in nonconformance with safety standards.
  • Page 54 2. Disengage the PTO, move the motion-control levers to the neutral-locked position, and set the parking brake. 3. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Check the tire pressure of both drive tires; refer to Checking the Tire Pressure (page 41).
  • Page 55 Adjusting the Right Side Front-to-Rear Mower Deck Pitch 1. Position the right blade front-to-rear (Figure 83). 2. Measure the right blade at the C location, from a level surface to the cutting edge of the blade tip and record this measurement (Figure 83).
  • Page 56 Matching the Rear of the Mower Deck Leveling the Front of the Mower Deck 1. Position the left and right blades front-to-rear. 1. Position the left and right blades front-to-rear. 2. Measure the left blade at the B location, from a level 2.
  • Page 57 Matching the Height-of-Cut Adjusting the Compression Spring 1. Lower the mower to the 76 mm (3 inches) height-of-cut Note: Adjusting the compression spring will alter how much position. the deck will float and how much effort it takes to lift the deck when using the height-of-cut handle.

  • Page 58: 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. Remove the grass buildup under the mower daily.

  • Page 59: Storage

    Storage 12. Store the machine in a clean, dry garage or storage area. Remove the key from the ignition switch and keep it in a memorable place. Cover the machine to protect Cleaning and Storage it and keep it clean. 1.

  • Page 60: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The engine will not start, starts hard, or 1. Fuel tank is empty. 1. Fill the fuel tank with gasoline. fails to keep running. 2. Choke is not on. 2. Move the choke lever to choke position. 3.
  • Page 61 Problem Possible Cause Corrective Action The blades do not rotate. 1. Pump-drive belt is worn, loose or 1. Check the belt tension. broken. 2. Install the drive belt, and check the 2. Pump-drive belt is off the pulley. adjusting shafts and belt guides for correct position.

  • Page 62: Schematics

    Schematics Hydraulic Schematic (Rev. A)
  • Page 63 G015606 Electrical Schematic (Rev. A)
  • Page 64 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:

7453679534Grandstand 74534Grandstand 74536Grandstand 79534

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