Toro 74549 Operator's Manual
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Toro 74549 Operator's Manual

Grandstand mower with 48 in, 52 in or 60 in turbo force cutting unit
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Original Instructions (EN)
GrandStand
With 48in, 52in or 60in TURBO FORCE

Cutting Unit

Model No. 74549—Serial No. 313000001 and Up
Model No. 74553—Serial No. 313000001 and Up
Model No. 74578—Serial No. 313000001 and Up
Model No. 79548—Serial No. 313000001 and Up
Model No. 79549—Serial No. 313000001 and Up
Model No. 79553—Serial No. 313000001 and Up
Form No. 3374-389 Rev A
®
Mower
®
*3374-389* A

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Summary of Contents for Toro 74549

  • Page 1: Cutting Unit

    Mower With 48in, 52in or 60in TURBO FORCE ® Cutting Unit Model No. 74549—Serial No. 313000001 and Up Model No. 74553—Serial No. 313000001 and Up Model No. 74578—Serial No. 313000001 and Up Model No. 79548—Serial No. 313000001 and Up Model No. 79549—Serial No. 313000001 and Up Model No.

  • 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

    Safety ................4 Checking the Tire Pressure ........40 Safe Operating Practices........... 4 Adjusting the Caster Pivot Bearing ......41 Toro Mower Safety ..........5 Servicing the Caster Wheel and Bearings ....41 Slope Indicator ............7 Adjusting the Electric Clutch........42 Safety and Instructional Decals ......... 8 Cooling System Maintenance ........42...

  • 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 Note: The addition of attachments made by other the machine; seek shelter. manufacturers that do not meet American National Standards •...

  • Page 5: Toro Mower Safety

    Toro Mower Safety trailer bed with a plastic liner. Always place containers on the ground away from your vehicle before filling. The following list contains safety information specific to Toro • products and other safety information you must know. Remove equipment from the truck or trailer and refuel it on the ground.

  • Page 6: Slope Operation

    Slope Operation All slopes and ramps require extra caution. If you feel uneasy on a slope, do not mow it. • Remove obstacles such as rocks, tree limbs, etc. from the mowing area. • Watch for holes, ruts or bumps. Tall grass can hide obstacles.

  • 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 9 116-3290 115-4186 1. Interval 2. Power Take-off (PTO) 3. Parking brake 4. Neutral 5. Operator presence switch 6. Battery 117-0456 1. Height of cut (HOC)—high 3. Height of cut (HOC)—low 2. Height of cut (HOC)—medium 115-4212 1. Hydraulic oil level 3.
  • Page 10 121–5972 1. Read the Operator’s Manual before servicing or performing maintenance. 120-6412 1. Belt tension adjustment; read the Operator's Manual for more information. 121–6049 1. Thrown object 3. Cutting/dismemberment 120-6424 hazard—keep bystanders hazard of hand or foot, away from the machine. mower blade—keep hands 1.
  • Page 11 119-8727 1. Traction control 3. Slow 5. Reverse 7. Operator presence switch 2. Fast 4. Neutral 6. Power Take-off (PTO)—disengage 120-6464 1. Parking brake—engage 5. Engine speed 3. Power Take-off 7. Continuous variable setting (PTO)—engage 2. Parking brake—disengage 4. Power Take-off 6.

  • Page 12: Product Overview

    Product Overview g018323 Figure 4 60 inch machine 1. Side discharge chute 7. Control levers G015229 2. Battery 8. Manual tube Figure 3 3. Engine 9. Platform (down position) 48 inch (shown) and 52 inch machines 4. Fuel shut-off valve (behind 10.

  • Page 13: Controls

    Controls 1 2 3 4 Become familiar with all the controls (Figure 5) before you start the engine and operate the machine. g015396 Figure 6 60 inch machine 1. Parking brake lever 8. Fuel cap g015230 2. Choke 9. Platform latch Figure 5 3.

  • Page 14: 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.

  • Page 15: 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 16: Checking The Engine Oil Level

    Breaking In a New Machine of varnish deposits in the fuel system, use fuel stabilizer at all times. New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing Filling the Fuel Tank additional load on the engine.

  • Page 17: Operating The Mower Blade Control Switch (Pto)

    G009174 Figure 11 Figure 9 1. Parking brake engaged 2. Parking brake released Operating the Throttle The throttle control can be moved between Fast and Slow Releasing the Parking Brake positions (Figure 12). Pull the brake lever back and over into the slot and push the Always use the fast position when turning on the mower deck parking brake lever forward.

  • Page 18: Operating The Ignition Switch

    Ensure the fuel shut-off valve is open when starting the engine. g015365 G008959 Figure 13 1. On 2. Off G008948 Figure 15 Operating the Ignition Switch 1. On 2. Off 1. Turn the ignition key to the Start position (Figure 14). When the engines starts, release the key.

  • Page 19: The Safety Interlock System

    Let the engine idle at slow throttle (turtle) for 60 seconds before turning the ignition switch off. Figure 16 7. Turn the ignition key to the Start position (Figure 14). When the engines starts, release the key. Important: Do not engage starter for more than 5 seconds at a time.

  • Page 20: Operating The Platform

    The safety interlock system is designed to stop the mower control switch (PTO) and release. The clutch should blades if you move or release the right side motion control engage and the mower blades begin rotating. lever into the neutral lock position. 11.

  • Page 21: Driving Forward Or Backward

    Driving Forward • Mowing most areas • Driving across slopes 1. Release the parking brake; refer to Releasing the Parking Brake in Operation. • Driving down slopes 2. Move the right side motion control lever to the center, To lower the platform, push the platform forward against the un-locked position.

  • Page 22: Stopping The Machine

    Set the parking brake when you leave the machine; refer to Setting the Parking Brake in Operation. Remember to remove the key from the ignition switch. CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended.

  • Page 23: Transporting Machines

    2. Open the by-pass valve on both pumps by turning them counter clockwise 1 to 2 turns. This allows hydraulic fluid to by-pass the pumps and the wheels to turn (Figure 25). Note: Rotate the by-pass valves a maximum of 2 turns so the valve does not come out of the body causing fluid to run out.

  • Page 24: Side Discharging Or Mulching The Grass

    WARNING DANGER Loading a unit onto a trailer or truck increases the Without the grass deflector, discharge cover, or possibility of backward tip-over and could cause complete grass catcher assembly mounted in serious injury or death. place, you and others are exposed to blade contact and thrown debris.

  • Page 25: Adjusting The Anti-Scalp Rollers (60 Inch Mower Decks Only)

    Adjusting the Anti-Scalp Rollers (60 inch Mower Decks Only) Whenever you change the height-of-cut, it is recommended to adjust the height of the anti-scalp rollers. 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake.

  • Page 26: Using The Mid-Size Weight

    WARNING Excessive weight changes can effect handling and operation of the machine. This could cause serious injury to you or bystanders. Make weight changes is small increments only. Evaluate the mower after each weight change to ensure the machine can be operated safely. G012678 Figure 32 Position C...

  • Page 27: Maintenance

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

  • Page 28: Premaintenance Procedures

    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 and disconnect the spark plug wires from the spark plugs before you do any maintenance.

  • Page 29: Release The Cushion For Rear Access

    Figure 36 g019209 1. Remove battery 2. With two people, lift the front end of the mower Figure 37 (ensure the platform is up) 1. Plastic bushing with large 3. Hairpin cotter pin washer 2. Cushion bracket with key hole Release the Cushion for Rear Access The cushion can be released for rear access to the machine...

  • Page 30: Lubrication

    Lubrication Grease with No. 2 general purpose lithium base or molybdenum base grease. How to Grease 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.
  • Page 31 1. Stop the engine, wait for all moving parts to stop, and tire should not spin freely (more than 1 or 2 revolutions) remove the key. Engage the parking brake. or have any side play. If the wheel spins freely, adjust torque on spacer nut until there is a slight amount of drag.

  • 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—Check the paper air are damaged or excessively dirty.

  • Page 33: Changing The Engine Oil

    g015238 Figure 43 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 Filter

    g015238 G008796 Figure 46 5. Start the engine and drive to a flat area. Check the engine oil level. Changing the Engine Oil Filter Note: Change the engine oil filter more frequently when operating conditions are extremely dusty or sandy. 1.

  • Page 35: Servicing The Spark Plug

    Removing the Spark Plug 1. Disengage the PTO, move the motion control levers to the neutral locked position 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. g015238 g015238 Figure 48...

  • Page 36: Check Spark Arrester (If Equipped)

    Installing the Spark Plug Fuel System Tighten the spark plug(s) to 16 ft.-lb (22 N-m). Maintenance Draining the Fuel Tank Note: There is no other recommended way to drain fuel from the tank, other than using a syphon pump. A syphon pump can be purchased at a hardware store.

  • Page 37: Servicing The Fuel Filter

    Servicing the Fuel Filter Electrical System Maintenance Replacing the Fuel Filter Service Interval: Every 800 hours/Yearly (whichever comes Servicing the Battery first) Service Interval: Every 100 hours Never install a dirty filter if it is removed from the fuel line. Note: Note how the fuel filter is installed in order to install Always keep the battery clean and fully charged.

  • Page 38: Charging The Battery

    WARNING Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable.

  • Page 39: Servicing The Fuses

    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. Figure 54 2. Check if the machine pulls to one side. If it does, stop the machine and set the parking brake.

  • Page 40: Checking The Tire Pressure

    4. If adjustment is needed, loosen the jam nut and adjust the bolt to the correct distance. Tighten the jam nut after adjusting the bolt (Figure 58). 5. Test the safety interlock system before operation. 2 3 4 g017848 Figure 57 1.

  • Page 41: Adjusting The Caster Pivot Bearing

    Figure 59 Adjusting the Caster Pivot Bearing Figure 60 1. Spring Washers 3. Dust Cap Service Interval: Every 500 hours/Yearly (whichever comes 2. Lock Nut first) 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position Servicing the Caster Wheel and set the parking brake.

  • Page 42: Adjusting The Electric Clutch

    Cooling System 2. Remove one bushing, then pull the spanner bushing and roller bearing out of the wheel hub (Figure 61). Maintenance 3. Remove the other bushing from the wheel hub and clean any grease and dirt from the wheel hub (Figure 61).

  • Page 43: Servicing The Hydraulic Oil Cooler (52 And 60 Inch Mower Models Only)

    Brake Maintenance Note: High pressure and over-speeding the fan may cause fan failure. Use care with compressed air to avoid over-speeding the electric fan. Never direct a pressure washer Servicing the Brake on the electric fan. Before each use, check brakes on both a level surface and Servicing the Hydraulic Oil slope.

  • Page 44: Adjusting The Brakes

    7. Rotate the yoke. To tighten the brake, rotate the yoke up. To loosen the brake, rotate the yoke down (Figure 66). 8. Secure the yoke to lower brake lever with the hair pin cotter pin and clevis pin (Figure 66). 9.

  • Page 45: Belt Maintenance

    Belt Maintenance Replacing the Mower Deck Belt Service Interval: Every 100 hours—Check the mower deck belt. Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn deck belt. Replace the deck belt if any of these conditions are evident.

  • Page 46: Replacing The Pump Drive Belt

    G015595 g017890 Figure 68 Figure 69 48 and 52 inch mower decks 60 inch mower decks 1. 6-1/2 inches (165 mm) 4. Ratchet 1. 6-1/2 inches (165 mm) 4. Ratchet from hook to hook from hook to hook 2. Spring 5.

  • 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.

  • Page 48: Motion Control Levers

    g015372 Figure 72 1. Switch screws 3. Nut and bolt 2. Cam 9. After the cam is adjusted, the lever switch needs to be checked. 10. Check the gap between the control lever and switch g015373 as shown in Figure 73. The gap needs to be an 1/8 inch (3mm) with the right motion control lever in the Figure 73 neutral, unlocked position.
  • Page 49 g015241 Figure 74 1. Left motion control lever 3. Neutral locked position 2. Right motion control lever 4. Align the control levers front to back 2. Lift and remove the cable lock securing the cable adjusting nuts (Figure 75). g017848 3.

  • Page 50: Hydraulic System Maintenance

    Mobil 1 oil. Every 500 hours/Yearly (whichever comes first)—Change the hydraulic filter ® and hydraulic oil when using Toro ™ HYPR-OIL 500 hydraulic oil. Note: Change the hydraulic fluid more frequently in severe G012005 conditions or in a hot operating climate.
  • Page 51 Replacing the Hydraulic Filter 4. Locate the front hydraulic hose under the hydraulic tank and place drain pan under the tank (Figure 77). Service Interval: After the first 8 hours 5. Loosen the hose clamp and move it down the hose. WARNING 6.

  • Page 52: Bleeding The Hydraulic System

    Check hydraulic hoses and hoses for leaks, loose fittings, kinked hoses, loose mounting supports, wear, weather and chemical deterioration. Make necessary repairs before operating. Note: Keep areas around hydraulic system clean from grass and debris build up. Note: Extended operating time at high temperatures in a hot climate may lead to deterioration of hoses and seals.

  • Page 53: Mower Deck Maintenance

    3. Wear/slot Forming and continued safety conformance of the machine, use 2. Curved Area 4. Crack genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. Checking for Bent Blades 1. Hold the blade end using a rag or thickly-padded glove.

  • Page 54: Correcting The Mower Quality Of Cut

    Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the spring disk and blade bolt. The spring disk cone must be installed toward the bolt head (Figure 85). Torque the blade bolt to 85-110 ft-lb (115-150 N-m).
  • Page 55 2. Ensure the blades are not bent. Refer to Checking for Bent Blades. 3. Position the blades side-to-side. Measure at B and C locations from a level surface to the cutting edge of blade tips (Figure 86). Figure 86 G015244 Figure 87 1.
  • Page 56 Changing the Mower Deck Front-to-Rear Pitch Changing the front-to-rear pitch is done by adjusting the front height-of-cut posts. 1. Place 3 pieces of 2x4 wood under the mower deck as shown in Figure 89. Stand the 2x4's on the 4 inch part. G015245 Figure 89 1.

  • Page 57: Adjusting The Deck Lift Spring

    Figure 92 1. Measure from a level 2. Measure blade at point A surface 4. The measurement should be 3 inch (7.6 cm). 5. If it does not measure correctly, locate the height-of-cut rod on the right side of the machine (Figure 93). 6.

  • Page 58: Replacing The Grass Deflector

    3. If needed, adjust the distance by adjusting the bolt on top of the U-bracket (Figure 94). 1, 2 g015594 Figure 95 1. Bolt 5. Spring installed 2. Spacer 6. Grass Deflector 3. Locknut 7. J hook end of spring 4.

  • Page 59: Cleaning

    Cleaning Storage Cleaning and Storage Cleaning Under the Mower 1. Disengage the power take off (PTO), set the parking Service Interval: Before each use or daily brake, and turn the ignition key to off. Remove the key. Remove the grass buildup under the mower daily. 2.
  • Page 60 11. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 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 it and keep it clean.

  • Page 61: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Engine will not start, starts hard, or fails 1. Fuel tank is empty or shut-off valve 1. Fill fuel tank with gasoline and open to keep running. closed. valve 2. Move the choke lever to choke position. 2.
  • Page 62 Problem Possible Cause Corrective Action Uneven cutting height. 1. Blade(s) not sharp. 1. Sharpen the blade(s). 2. Cutting blade(s) is/are bent. 2. Install new cutting blade(s). 3. Mower deck is not level. 3. Level the mower deck side-to-side position. 4. Mower deck pitch is wrong. 4.

  • Page 63: Schematics

    Schematics g0181 10 Hydraulic Schematic for 48 inch Mower Models (Rev. A) g017891 Hydraulic Schematic for 52 and 60 inch Mower Models (Rev. A)
  • Page 64 G015606 Electrical Schematic for 48 inch Mower Models (Rev. A)
  • Page 65 g018174 Electrical Schematic for 52 and 60 inch Mower Models (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.

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