Toro 74950 User Manual (English)

Questions and Answers:

K
Katherine JonesAug 17, 2025
Why is my Toro 74950 Lawn Mower engine losing power?
- E
  Eric KimAug 17, 2025
  If your Toro Lawn Mower engine is losing power, first, reduce the ground speed to lessen the engine load. Check if the air cleaner is dirty and clean it. Ensure the oil level in the crankcase is adequate by adding oil if needed. Inspect the cooling fins and air passages above the engine for obstructions and remove them. Also, verify that the vent hole in the fuel cap isn't plugged; clean or replace the cap if necessary. Replace the fuel filter if it's dirty. For dirt, water, or stale fuel in the fuel system, contact an Authorized Service Dealer.
C
Christopher BallardAug 20, 2025
Why does my Toro Lawn Mower produce an uneven cutting height?
- J
  Jeremy LiuAug 21, 2025
  If your Toro Lawn Mower is producing an uneven cutting height, start by sharpening any dull blades or replacing bent blades. Ensure the mower deck is level from side-to-side and front-to-rear. Clean any dirt from the underside of the mower. Adjust the tire pressure to the correct level. If the blade spindle is bent, contact an Authorized Service Dealer.
T
thomas38Aug 25, 2025
What to do if the blades on my Toro 74950 do not rotate?
- M
  Megan SantiagoAug 25, 2025
  If the blades on your Toro Lawn Mower aren't rotating, check if the mower deck belt is worn, loose, or broken and install a new deck belt if needed. If the mower deck belt is off the pulley, reinstall it and inspect the idler pulley, idler arm, and spring for correct position and function. Also, inspect the pump drive belt for wear, looseness, or breakage; check the belt tension or install a new belt. Replace the idler spring if it's broken or missing.
B
Brittany DanielAug 27, 2025
What to do if my Toro 74950 starter does not crank?
- T
  Travis FernandezAug 27, 2025
  If the starter on your Toro Lawn Mower isn't cranking, there are several things to check. Make sure the blade-control switch (PTO) is disengaged, the parking brake is set, and the motion-control levers are in the neutral-lock position. Also, ensure you are seated. If these aren't the issue, check if the battery is dead (charge it), the electrical connections are corroded or loose (ensure good contact), or the fuse is blown (replace it). If the relay or switch is worn or damaged, contact an Authorized Service Dealer.
S
Stuart MorganAug 30, 2025
How to fix abnormal vibrations in my Toro Lawn Mower?
- A
  Andrew GrimesAug 30, 2025
  If your Toro Lawn Mower is vibrating abnormally, check the following: the cutting blades may be bent or unbalanced (install new ones), the blade mounting bolt may be loose (tighten it), the engine mounting bolts may be loose (tighten them), or the engine pulley, idler pulley, or blade pulley may be loose (tighten the appropriate pulley). If the engine pulley is damaged, the blade spindle is bent, or the motor mount is loose or worn, contact an Authorized Service Dealer.
R
Roy FitzpatrickSep 2, 2025
What to do if my Toro Lawn Mower does not drive?
- S
  Stacy RobertsSep 3, 2025
  If your Toro Lawn Mower isn't driving, make sure the bypass valves are tightened. Check the pump belt for wear, looseness, or breakage, and replace it if necessary. Also, ensure the pump belt is properly on the pulley (change the belt). If the idler spring is broken or missing, replace it. Finally, check the hydraulic oil level; add oil to the reservoirs or allow it to cool down if it's too hot.
L
Lawrence CollinsSep 6, 2025
Why does my Toro Lawn Mower pull to one side?
- J
  Jeremy GraySep 6, 2025
  If your Toro Lawn Mower pulls to the left or right when the levers are fully forward, you may need to adjust the tracking. Also, ensure that the tire pressure in the drive tires is correct by adjusting it.
A
athompsonSep 9, 2025
Why clutch does not engage in my Toro 74950?
- D
  Dr. Grant PerrySep 9, 2025
  If the clutch on your Toro Lawn Mower doesn't engage, replace the fuse. Check the coil resistance, battery charge, charging system, and wiring connections, and replace components if necessary. Check the coil resistance, battery charge, charging system, and wiring connections and replace parts if necessary. If the coil is damaged, replace the clutch. If there is inadequate current supply, repair or replace the clutch lead wire or electrical system and clean the connector contacts. If the rotor/armature air gap is too large, remove the shim or replace the clutch.

Toro 74950 Specifications

General

Cutting Width	22 inches
Weight	88 lbs (39.9 kg)
Deck Material	Steel
Start Type	Recoil
Power Source	Gas
Deck Size	22 inches
Cutting Height	1.25 - 3.75 inches
Transmission	Personal Pace Auto-Drive
Warranty	2 years limited

Summary

Introduction

Safe Operating Practices

Guidelines for safe operation of lawn mowing equipment.

Safety

Toro Mower Safety

Specific safety information for Toro mowers.

Safe Handling of Fuels

Maintenance and Storage

Hauling

Using the Rollover-Protection System (ROPS)

Service

Slope Indicator

Safety and Instructional Decals

Product Overview

Fuel Gauge

Location and function of the fuel level indicator.

Controls

Identification of the machine's operating controls.

Hour Meter

Function of the hour meter for maintenance scheduling.

Safety-Interlock Indicators

Symbols indicating safety system status.

Battery-Indicator Light

Indication of battery charge status.

Throttle Control

Adjustment of engine speed.

Choke

Operation of the choke for starting.

Specifications

Width

Machine dimensions without and with deflector.

Length

Machine dimensions with ROPS up and down.

Height

Machine height with ROPS up and down.

Weight

Total weight of the mower model.

Operation

Adding Fuel

Procedures and precautions for fueling the mower.

Using Stabilizer/Conditioner

How to use fuel stabilizer for storage.

Filling the Fuel Tank

Checking the Engine-Oil Level

Breaking in a New Machine

Using the Rollover Protection System (ROPS)

Operating the Parking Brake

Setting the Parking Brake

How to engage the parking brake.

Releasing the Parking Brake

How to disengage the parking brake.

Operating the Mower Blade-Control Switch (PTO)

Engaging the Blade-Control Switch (PTO)

How to activate the mower blades.

Disengaging the Blade-Control Switch (PTO)

How to deactivate the mower blades.

Operating the Throttle

Operating the Choke

Operating the Ignition Switch

Using the Fuel-Shutoff Valve

Starting and Stopping the Engine

Starting the Engine

Step-by-step guide to start the mower engine.

Stopping the Engine

Step-by-step guide to stop the mower engine.

Using the Safety-Interlock System

Understanding the Safety-Interlock System

How the safety interlocks function.

Testing the Safety-Interlock System

Daily checks for safety interlock operation.

Driving Forward or Backward

Using the Motion-Control levers

Driving Forward

How to move the machine forward.

Driving Backward

How to move the machine backward.

Stopping the Machine

Adjusting the Height of Cut

Using the Transport Lock

Mechanism for securing the deck during transport.

Adjusting the Height-of-Cut Pin

Adjusting the Anti-Scalp Rollers

Adjusting the Flow-Baffle Locks

Positioning the Flow Baffle

Position A

Recommended use for Position A baffle setting.

Position B

Recommended use for Position B baffle setting.

Position C

Positioning the Seat

Using the Drive-Wheel Release Valves

Using the Side Discharge

Transporting the Machine

Loading the Machine

Operating Tips

Using the Fast Throttle Setting

Benefits of using the fast throttle for mowing.

Cutting a Lawn for the First Time

Advice for initial lawn cutting.

Cutting a Third of the Grass Blade

Recommended cutting ratio for grass blades.

Alternating the Mowing Direction

Benefits of changing mowing direction.

Mowing at Correct Intervals

Guidance on mowing frequency.

Adjusting the Cutting Speed

How speed affects cut quality.

Avoiding Cutting Too Low

Preventing scalping by adjusting cut height.

Cutting Long Grass

Techniques for cutting overgrown grass.

Stopping the Machine

How to stop the machine safely while mowing.

Keeping the Underside of the Mower Clean

Importance of cleaning the mower deck.

Maintaining the Blade

How to keep mower blades sharp and in good condition.

Maintenance

Recommended Maintenance Schedule(s)

Table outlining service intervals and procedures.

Lubrication

Greasing and Lubrication

General lubrication procedures and types of grease.

Adding Light Oil or Spray Lubrication

Lubrication for specific components.

Greasing the Mower

Lubricating the Caster-Wheel Hubs

Engine Maintenance

Servicing the Air Cleaner

Procedures for cleaning and replacing air filters.

Servicing the Engine Oil

Servicing the Primary Filter

Servicing the Secondary Filter

Installing the Filters

Checking the Engine-Oil Level

Changing the Engine Oil

Changing the Engine-Oil Filter

Servicing the Spark Plugs

Removing the Spark Plug

Steps to remove the spark plug.

Checking the Spark Plugs

How to inspect and gap spark plugs.

Installing the Spark Plugs

Fuel System Maintenance

Replacing the Fuel Filter

Procedure to replace the fuel filter.

Checking the Spark Arrester (if equipped)

Servicing the Fuel Tank

Electrical System Maintenance

Servicing the Battery

Procedures for servicing the mower battery.

Removing the Battery

Steps for safely removing the battery.

Charging the Battery

Installing the Battery

Servicing the Fuses

Drive System Maintenance

Checking the Seat Belt

Inspecting the seat belt for wear and function.

Checking the Rollover Protection System (ROPS) Knobs

Verifying ROPS knob condition and engagement.

Adjusting the Tracking

Checking the Tire Pressure

Checking the Wheel Lug Nuts

Checking the Wheel-Hub Slotted Nut

Adjusting the Caster-Pivot Bearing

Using the Clutch Shim

Removing the Clutch Shim

Cooling System Maintenance

Cleaning the Engine Screen and Engine-Oil Cooler

Removing debris for proper cooling.

Cleaning the Engine-Cooling Fins and Shrouds

Checking and Cleaning the Hydraulic-Unit Shrouds

Brake Maintenance

Adjusting the Parking Brake

How to properly adjust the parking brake.

Belt Maintenance

Inspecting the Belts

Checking belts for wear and damage.

Replacing the Mower Belt

Procedure for replacing the mower drive belt.

Replacing the Hydraulic Pump-Drive Belt

Controls System Maintenance

Adjusting the Control-Handle Position

Adjusting lever height for operator comfort.

Adjusting the Motion-Control Linkage

Fine-tuning linkages for neutral positioning.

Adjusting the Motion-Control Damper

Adjusting the Motion-Control Neutral-Lock Pivot

Hydraulic System Maintenance

Servicing the Hydraulic System

General maintenance for the hydraulic system.

Checking the Hydraulic Oil

Procedure to check hydraulic oil level.

Replacing the Hydraulic Filters and Hydraulic Oil

Mower Deck Maintenance

Leveling the Mower Deck

Procedures to ensure the mower deck is level.

Setting up the Machine

Preparing the machine for deck leveling.

Servicing the Cutting Blades

Inspecting the Blades

Checking blades for sharpness and damage.

Checking for Bent Blades

Removing the Blades

Sharpening the Blades

Installing the Blades

Removing the Mower Deck

Replacing the Grass Deflector

Cleaning

Cleaning under the Mower

Cleaning the underside of the mower deck.

Disposing of Waste

Proper disposal of fluids and waste.

Storage

Cleaning and Storage

Preparing the mower for storage.

Troubleshooting

The starter does not crank.

Causes and solutions for starter issues.

The engine does not start, starts hard, or fails to keep running.

Troubleshooting engine starting and running problems.

The engine loses power.

Diagnosing and fixing engine power loss.

The engine overheats.

Identifying causes and solutions for engine overheating.

The mower pulls to the left or right (with levers fully forward).

Adjusting tracking for proper mower movement.

The machine does not drive.

The machine vibrates abnormally.

The machine produces an uneven cutting height.

The blades do not rotate.

The clutch does not engage.

Schematics

Wire Diagram (Rev. A)

Electrical wiring diagram of the mower.

Related product manuals

Toro 74950 User Manual

Table of Contents

Questions and Answers:

Toro 74950 Specifications

Summary

Introduction

Safe Operating Practices

Safety

Toro Mower Safety

Safe Handling of Fuels

Maintenance and Storage

Hauling

Using the Rollover-Protection System (ROPS)

Service

Slope Indicator

Safety and Instructional Decals

Product Overview

Fuel Gauge

Controls

Hour Meter

Safety-Interlock Indicators

Battery-Indicator Light

Throttle Control

Choke

Specifications

Width

Length

Height

Weight

Operation

Adding Fuel

Using Stabilizer/Conditioner

Filling the Fuel Tank

Checking the Engine-Oil Level

Breaking in a New Machine

Using the Rollover Protection System (ROPS)

Operating the Parking Brake

Setting the Parking Brake

Releasing the Parking Brake

Operating the Mower Blade-Control Switch (PTO)

Engaging the Blade-Control Switch (PTO)

Disengaging the Blade-Control Switch (PTO)

Operating the Throttle

Operating the Choke

Operating the Ignition Switch

Using the Fuel-Shutoff Valve

Starting and Stopping the Engine

Starting the Engine

Stopping the Engine

Using the Safety-Interlock System

Understanding the Safety-Interlock System

Testing the Safety-Interlock System

Driving Forward or Backward

Using the Motion-Control levers

Driving Forward

Driving Backward

Stopping the Machine

Adjusting the Height of Cut

Using the Transport Lock

Adjusting the Height-of-Cut Pin

Adjusting the Anti-Scalp Rollers

Adjusting the Flow-Baffle Locks

Positioning the Flow Baffle

Position A

Position B

Position C

Positioning the Seat

Using the Drive-Wheel Release Valves

Using the Side Discharge

Transporting the Machine

Loading the Machine

Operating Tips

Using the Fast Throttle Setting

Cutting a Lawn for the First Time

Cutting a Third of the Grass Blade

Alternating the Mowing Direction

Mowing at Correct Intervals

Adjusting the Cutting Speed

Avoiding Cutting Too Low

Cutting Long Grass