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Toro 74408 - User Manual

Toro 74408
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Form No. 3356-136 Rev C
Z334 Z Master with a 34in
7-Gauge Side Discharge
Mower or Z340 Z Master with
a 40in 7-Gauge Side Discharge
Mower
Model No. 74408 —Serial No. 270000001 and Up
Model No. 74408CP —Serial No. 270000001 and Up
Model No. 74409 —Serial No. 270000001 and Up
Model No. 74409CP —Serial No. 270000001 and Up
Register your product at www.Toro.com Original Instructions (EN)

Table of Contents

Questions and Answers

  • A
    aandersonAug 20, 2025
    Why won't my Toro Riding mower start?
    • K
      Kelli MillerAug 20, 2025
      Your Toro Riding mower might not start due to several reasons: the fuel tank could be empty, the air cleaner might be dirty, there could be dirt in the fuel filter. For stale fuel, dirt, or water in the fuel system, contact an Authorized Service Dealer. To resolve these issues: * Fill the fuel tank. * Clean or replace the air cleaner element. * Replace the fuel filter.
  • K
    kathrynlynchAug 22, 2025
    Why won't my Toro 74408 Lawn Mower engine start?
    • K
      Karen BenitezAug 22, 2025
      If the Toro Lawn Mower engine won't start, starts with difficulty, or stops running, possible causes include an empty fuel tank (fill it with fuel), a dirty air cleaner (clean or replace the air cleaner element), or a dirty fuel filter (replace the fuel filter). For dirt, water, or stale fuel in the fuel system, contact an Authorized Service Dealer.
  • J
    james01Aug 25, 2025
    What to do if my Toro Riding mower engine loses power?
    • J
      Jose SmithAug 25, 2025
      If your Toro Riding mower engine is losing power, it could be due to several reasons. The engine load might be excessive, the air cleaner could be dirty, or the oil level in the crankcase might be low. Also, check for plugged cooling fins and air passages, a plugged vent hole in the fuel cap, or dirt in the fuel filter. For stale fuel, dirt, or water in the fuel system, contact an Authorized Service Dealer. Here's how to address these issues: * Reduce the ground speed. * Clean the air cleaner element. * Add oil to the crankcase. * Remove any obstructions from the cooling fins and air passages. * Clean or replace the fuel cap. * Replace the fuel filter.
  • M
    michaelcohenAug 26, 2025
    Why is my Toro Riding mower overheating?
    • A
      Angel CastroAug 26, 2025
      Your Toro Riding mower may overheat if the engine load is excessive, the oil level in the crankcase is low, or the cooling fins and air passages above the engine are plugged. To resolve this: * Reduce the ground speed. * Add oil to the crankcase. * Remove any obstructions from the cooling fins and air passages.
  • O
    Omar SavageAug 27, 2025
    What to do if my Toro Riding mower does not drive?
    • P
      padilladanielleAug 27, 2025
      If your Toro Riding mower isn't driving, the bypass valve might not be closed tightly, the drive or pump belt could be worn, loose, or broken, or the belt may be off a pulley. Other causes include a broken or missing idler spring, or the hydraulic fluid level being low or too hot. To fix this: * Tighten the bypass valve. * Change the belt. * Replace the spring. * Add hydraulic fluid to the reservoir or let it cool down.
  • R
    ramosmeganAug 29, 2025
    Why does my Toro Riding mower have an uneven cutting height?
    • C
      Christopher WadeAug 29, 2025
      An uneven cutting height on your Toro Riding mower can result from several factors: the blades might not be sharp, the cutting blades could be bent, or the mower might not be level. Other causes include a dirty mower underside, incorrect tire pressure, or a bent blade spindle. For a bent blade spindle, contact an Authorized Service Dealer. Otherwise: * Sharpen the blades. * Install new cutting blades. * Level the mower from side-to-side and front-to-rear. * Clean the underside of the mower. * Adjust the tire pressure.
  • V
    Vanessa FieldsAug 31, 2025
    Why does my Toro 74408 engine lose power?
    • A
      Austin BallardAug 31, 2025
      If your Toro Lawn Mower engine loses power, it could be due to excessive engine load (reduce the ground speed), a dirty air cleaner (clean the air cleaner element), or a low oil level in the crankcase (add oil). Also, check for plugged cooling fins and air passages above the engine (remove the obstruction), a plugged vent hole in the fuel cap (clean or replace the fuel cap), or a dirty fuel filter (replace the fuel filter). For dirt, water, or stale fuel in the fuel system, contact an Authorized Service Dealer.
  • C
    Colleen ReyesSep 2, 2025
    Why is my Toro 74408 Lawn Mower engine overheating?
    • N
      Nicholas QuinnSep 2, 2025
      If the Toro Lawn Mower engine overheats, it might be due to excessive engine load (reduce the ground speed), low oil level in the crankcase (add oil), or plugged cooling fins and air passages above the engine (remove the obstruction).
  • C
    Catherine MasonSep 4, 2025
    Why aren't the blades rotating on my Toro Lawn Mower?
    • E
      Eric HarrisonSep 4, 2025
      If your Toro Lawn Mower blades do not rotate, check if the drive belt is worn, loose, or broken (check the belt tension) or if the drive belt is off the pulley (install the drive belt and check adjusting shafts and belt guides for correct position). Also, inspect the deck belt (install a new deck belt if worn, loose, or broken) and ensure it's properly on the pulley (install the deck pulley and check the idler pulley, idler arm, and spring). Replace the idler spring if it is broken or missing.
  • C
    christopher85Sep 6, 2025
    How to fix uneven cutting height on my Toro 74408 Lawn Mower?
    • K
      Keith WilliamsSep 6, 2025
      If your Toro Lawn Mower has an uneven cutting height, it could be due to dull blades (sharpen the blades), bent cutting blades (install new cutting blades), the mower not being level (level the mower from side-to-side and front-to-rear), a dirty underside of the mower (clean the underside of the mower), or incorrect tire pressure (adjust the tire pressure). For a bent blade spindle, contact an Authorized Service Dealer.

Summary

Safety

Operation Safety

Guidelines for safe mower operation, including starting, stopping, and general usage.

Slope Operation

Specific safety precautions for operating the mower on slopes.

Toro Riding Mower Safety

Safety information specific to operating Toro riding mowers.

Safe Handling of Gasoline

Precautions and guidelines for safely handling gasoline and other fuels.

Slope Chart

Safety and Instructional Decals

Product Overview

Controls

Introduction to the machine's controls and their functions.

Operation

Adding Fuel

Detailed instructions and safety precautions for adding fuel.

Filling the Fuel Tank

Step-by-step instructions for filling the fuel tank safely.

Starting and Stopping the Engine

Starting the Engine

Step-by-step guide to starting the engine safely.

Stopping the Engine

Procedure for safely stopping the engine.

Operating the Power Take Off (PTO)

Engaging the PTO

Instructions on how to engage the power take off.

Driving Forward or Backward

Driving Forward

Detailed steps for driving the machine forward.

Adjusting the Height-of-Cut

Maintenance

Recommended Maintenance Schedule(s)

A schedule outlining maintenance tasks and intervals.

Engine Maintenance

Servicing the Air Cleaner

Instructions for cleaning or replacing air cleaner elements.

Servicing the Engine Oil

Procedures and specifications for servicing engine oil.

Electrical System Maintenance

Servicing the Battery

General procedures for servicing the battery.

Drive System Maintenance

Checking the Tire Pressure

Procedure for checking and maintaining tire pressure.

Mower Deck Maintenance

Leveling the Mower

Steps for leveling the mower deck.

Servicing the Cutting Blades

Guidance on maintaining and servicing mower blades.

Storage

Troubleshooting

Schematics

The Toro Total Coverage Guarantee

Toro 74408 Specifications

General IconGeneral
Model74408
Deck MaterialSteel
Start TypeRecoil
Spindle MaterialSteel
TransmissionVariable Speed
Mulching CapabilityYes
Bagging CapabilityYes
Side Discharge CapabilityYes
TypeWalk-Behind Lawn Mower
EngineBriggs & Stratton®
Cutting Width22 inches
Blade Tip Speed18, 000 feet per minute
Drive SystemRear-Wheel Drive
Tires (Front)8 inches

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