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Toro GrandStand 74574 - User Manual

Toro GrandStand 74574
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FormNo.3390-203RevA
GrandStand
®
Mower
With48in,52in,or60inTURBOFORCE
®
CuttingUnit
ModelNo.74574—SerialNo.315000001andUp
ModelNo.74575—SerialNo.315000001andUp
ModelNo.74576—SerialNo.315000001andUp
ModelNo.79574—SerialNo.315000001andUp
ModelNo.79575—SerialNo.315000001andUp
Registeratwww.Toro.com.
OriginalInstructions(EN)
*3390-203*A

Table of Contents

Questions and Answers

  • A
    alicia10Jul 31, 2025
    Why won't my Toro GrandStand 74574 engine start?
    • J
      jasminkingJul 31, 2025
      If your Toro Lawn Mower engine won't start, starts with difficulty, or stops running, several factors could be at play. First, ensure the fuel tank has gasoline and the shut-off valve is open. If that's not the issue, try moving the choke lever to the choke position. Also, check that the spark plug wire is securely connected. Other potential causes include a pitted, fouled spark plug (replace it with a new, correctly gapped one), a dirty air cleaner (service the air cleaner element), or a fuel filter clogged with dirt (replace the fuel filter). For issues like dirt, water, or stale fuel in the fuel system, or an incorrect gap between the safety interlock switches, it's best to contact an Authorized Service Dealer.
  • D
    Destiny BowersAug 4, 2025
    Why does my Toro GrandStand 74574 Lawn Mower engine lose power?
    • J
      Jacqueline ShahAug 4, 2025
      If your Toro Lawn Mower engine is losing power, it could be due to several reasons. Try reducing your ground speed, as the engine load may be excessive. Check and service the air cleaner, as a dirty air cleaner can cause power loss. Ensure that the oil level in the crankcase is adequate by adding oil if it is low. Also, inspect the cooling fins and air passages under the engine blower housing and remove any obstructions. Other factors could include a faulty spark plug which should be replaced, a blocked vent hole in the fuel cap which should be cleaned or replaced, or a dirty fuel filter which should also be replaced. If the issue persists, there might be dirt, water, or stale fuel in the fuel system, in which case you should contact an Authorized Service Dealer.
  • E
    Erika SellersAug 8, 2025
    How to fix uneven cutting height on my Toro GrandStand 74574?
    • J
      joewoodardAug 9, 2025
      If the cutting height of your Toro Lawn Mower is uneven, several factors could be responsible. Ensure that the blades are sharp; if not, sharpen them. If the cutting blades are bent, replace them. Check if the mower deck is level and adjust the side-to-side position if necessary. Also, verify the mower deck pitch and adjust the front-to-rear pitch accordingly. Clean the underside of the mower deck if it's dirty. Make sure the tire pressure is correct and adjust if needed. For a bent blade spindle, contact an Authorized Service Dealer.
  • A
    Angela PatelAug 12, 2025
    What to do if my Toro Lawn Mower has abnormal vibration?
    • T
      Teresa TurnerAug 13, 2025
      If your Toro Lawn Mower is vibrating abnormally, there are several possible causes. Start by checking the cutting blades for any bending or unbalance; replace them if necessary. Ensure the blade mounting bolt is tightened securely. Also, check and tighten the engine mounting bolts. Inspect the engine pulley, idler pulley, or blade pulley for looseness and tighten the appropriate pulley. For a damaged engine pulley or a bent blade spindle, you should contact an Authorized Service Dealer.
  • C
    Caroline MartinezAug 17, 2025
    Why is my Toro GrandStand 74574 engine overheating?
    • B
      Brad DavisAug 17, 2025
      If your Toro Lawn Mower is overheating, it could be due to a few reasons. First, reduce your ground speed as the engine load might be too high. Additionally, check the oil level in the crankcase and add oil if it's low. Finally, inspect the cooling fins and air passages under the engine blower housing for any obstructions and remove them.
  • D
    Daniel WellsAug 21, 2025
    What to do if my Toro GrandStand 74574 Lawn Mower does not drive?
    • M
      Megan GrayAug 21, 2025
      If your Toro Lawn Mower isn't driving, there are several possible causes. Begin by checking the hydraulic oil reservoir and add hydraulic oil if the level is low. If there is air in the hydraulic system, bleed it out. Inspect the pump drive belt for slipping and replace it if necessary. Also, check for a missing pump drive belt idler spring and replace it if needed. Finally, ensure the pump by-pass valves are tightened to a torque of 12 to 15 N-m (9 to 11 ft-lb).
  • B
    Brian CooperNov 24, 2025
    What to do if the blades don't rotate on my Toro GrandStand 74574 Lawn Mower?
    • M
      Mr. George ConwayNov 24, 2025
      If the blades on your Toro Lawn Mower aren't rotating, start by checking the pump drive belt tension. If the belt is worn, loose, or broken, check the belt tension. If the pump drive belt is off the pulley, install the drive belt and check the adjusting shafts and belt guides for correct positioning. If the mower deck belt is worn, loose, or broken, install a new deck belt. If the mower deck belt is off the pulley, install the deck pulley and check the idler pulley, idler arm, and spring for correct position and function. Replace the spring if it is broken or missing. If the electric clutch is out of adjustment, adjust the clutch air gap. For a damaged clutch connector or wire, a damaged electric clutch, a safety interlock system preventing blade rotation, or a faulty PTO switch, it is bes...

Summary

Operation

Adding Fuel

Procedures for safely adding unleaded gasoline to the fuel tank.

Operating the Parking Brake

Starting and Stopping the Engine

Step-by-step guide for starting and stopping the mower's engine.

Driving Forward or Backward

Safety

Safe Operating Practices

Essential guidelines for safe operation of the mower.

The Safety-Interlock System

Understanding and testing the safety interlock system.

Toro Mower Safety

Slope Operation

Safety instructions for operating the mower on slopes and inclines.

Controls

Adjusting the Height-of-Cut

Maintenance

Recommended Maintenance Schedule(s)

A schedule outlining maintenance tasks based on operating hours.

Lubrication

Engine Maintenance

Servicing the Air Cleaner

Servicing the Engine Oil

Checking the Engine-Oil Level

How to check and maintain the correct engine oil level.

Changing the Engine Oil

Servicing the Spark Plug

Electrical System Maintenance

Drive System Maintenance

Adjusting the Tracking

Adjusting the Electric Clutch

Cooling System Maintenance

Brake Maintenance

Servicing the Brake

Belt Maintenance

Controls System Maintenance

Hydraulic System Maintenance

Servicing the Hydraulic System

Mower Deck Maintenance

Servicing the Cutting Blades

Instructions for inspecting, removing, and installing mower blades.

Correcting the Mower Quality-of-Cut

Storage

Troubleshooting

Engine will not start, starts hard, or fails to keep running.

Common causes and solutions for engine starting issues.

Toro GrandStand 74574 Specifications

General IconGeneral
Engine Displacement726cc
Spindle MaterialCast aluminum
Caster Tires13 x 6.5-6
Blade EngagementElectric PTO
Deck Material7-gauge steel
Cutting Height1.5 - 5 inches
Speed Range0-10 mph
Turning Radius0 inches
Blade Tip Speed18, 500 ft/min

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