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Toro 74251 - User Manual

Toro 74251
64 pages
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Form No. 3354-542 Rev B
Z587L Z Master® with 60in
or 72in TURBO FORCE® Side
Discharge Mower
Model No. 74251 —Serial No. 260000001 and Up
Model No. 74252 —Serial No. 260000001 and Up
Register your product at www.Toro.com Original Instructions (EN)

Table of Contents

Questions and Answers

  • G
    Gabrielle CooperSep 8, 2025
    What to do if my Toro Riding mower starter does not crank?
    • S
      shernandezSep 8, 2025
      If the starter on your Toro Riding mower isn't cranking, make sure that the blade control (PTO) is disengaged, the parking brake is set, and you are sitting on the seat. Also, check if the battery is dead and needs charging, ensure electrical connections are making good contact, and replace the fuse if it's blown. If none of these steps work, the relay or switch may be defective.
  • J
    Jacqueline WilliamsSep 10, 2025
    Why is my Toro Riding mower engine losing power?
    • K
      Karen GuzmanSep 10, 2025
      If your Toro Riding mower engine is losing power, try reducing your ground speed. Check the air cleaner and clean it if it's dirty. Ensure the oil level in the crankcase is sufficient, and clear any obstructions from the cooling fins and air passages under the engine blower housing. Replace pitted, fouled, or incorrectly gapped spark plugs, and replace the fuel filter if it's dirty. If problems persist, there may be dirt, water, or stale fuel in the fuel system.
  • F
    fletchertoddSep 12, 2025
    Why is my Toro Riding mower having abnormal vibration?
    • A
      Andrea KnoxSep 12, 2025
      If your Toro Riding mower is vibrating abnormally, inspect the cutting blades for bends or unbalance and replace them if necessary. Ensure the blade mounting bolt and engine mounting bolts are tightened securely. Also, check for any loose engine pulleys, idler pulleys, or blade pulleys and tighten them. If the engine pulley is damaged or the blade spindle is bent, you will need professional assistance.
  • L
    lewisabigailSep 13, 2025
    Why is my Toro Riding mower engine overheating?
    • P
      priceryanSep 13, 2025
      If your Toro Riding mower engine is overheating, first check and add coolant if needed. Clean the air intake screens with every use. Inspect and clean the radiator screen with every use to ensure unrestricted airflow into the engine, and clean the radiator fins.
  • D
    Denise AdamsSep 15, 2025
    What to do if Toro Riding mower blades do not rotate?
    • V
      Valerie LindseySep 15, 2025
      If the blades on your Toro Riding mower do not rotate, install the mower belt and check the adjusting plate, idler arm and spring, and belt guides for correct position. If the belt is worn, loose, or broken, install a new mower belt. If the electric clutch does not engage or is worn, you will need professional assistance.
  • B
    Brenda HannaSep 18, 2025
    What to do if my Toro Riding mower does not drive?
    • R
      Regina AdamsSep 18, 2025
      If your Toro Riding mower isn't driving, add hydro fluid to the reservoir. For issues related to a worn, loose, or broken traction belt, or a traction belt that is off the pulley, you will need professional assistance.

Summary

Safety

Safe Operating Practices

Instructions for operating the equipment safely and avoiding injury.

Safety and Instructional Decals

Product Overview

Controls

Identification and function of various control levers, switches, and gauges on the machine.

Operation

Adding Fuel

Procedures and safety precautions for refueling the machine with gasoline.

Checking the Engine Oil Level

How to check the engine oil level before operation.

Using the Rollover Protection System (ROPS)

Instructions on how to properly use the ROPS for safety.

Operating the Parking Brake

How to set and release the parking brake for safe operation and stopping.

Starting and Stopping the Engine

Starting the Engine

Step-by-step guide on how to safely start the engine.

Stopping the Engine

Procedures for safely shutting down the engine after operation.

Operating the Power Take Off (PTO)

How to engage and disengage the PTO for operating mower blades and attachments.

The Safety Interlock System

Understanding the Safety Interlock System

Explanation of how safety interlocks prevent starting or stop the engine under certain conditions.

Testing the Safety Interlock System

How to test the safety interlock system before each use.

Driving Forward or Backward

Driving Forward

Instructions for moving the machine forward safely.

Driving Backward

Instructions for moving the machine backward safely.

Adjusting the Height-of-Cut

Adjusting the Anti-Scalp Rollers

Using the Z Stand

Operating Tips

Blade Maintenance

Importance of maintaining sharp blades for clean cuts and preventing disease.

Maintenance

Recommended Maintenance Schedule(s)

A table outlining maintenance tasks and their recommended service intervals.

Lubrication

Greasing and Lubrication

General procedures for greasing and lubricating the machine's various points.

Engine Maintenance

Servicing the Air Cleaner

Procedures for removing, cleaning, and installing the air cleaner filter.

Servicing the Engine Oil

Instructions for changing the engine oil, including type and capacity.

Checking the Oil Level

How to check the engine oil level correctly.

Servicing the Spark Plug

How to check, remove, and install spark plugs for engine maintenance.

Fuel System Maintenance

Electrical System Maintenance

Drive System Maintenance

Cooling System Maintenance

Brake Maintenance

Belt Maintenance

Controls System Maintenance

Hydraulic System Maintenance

Checking the Hydraulic Fluid

How to check the hydraulic fluid level and type.

Replacing the Hydraulic Filter and Oil

Procedure for replacing the hydraulic filter and changing the hydraulic fluid.

Setting the Right-hand Hydraulic Pump Neutral Position

Setting the Left-hand Hydraulic Pump Neutral Position

Mower Deck Maintenance

Leveling the Mower at Three Positions

How to level the mower deck for optimal cutting performance.

Servicing the Cutting Blades

Inspecting the Blades

How to inspect blades for sharpness, wear, and damage.

Storage

Troubleshooting

Toro 74251 Specifications

General IconGeneral
BrandToro
Model74251
CategoryLawn Mower
LanguageEnglish

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