Toro 75303 User Manual (English)

Other manuals for Toro 75303

Questions and Answers:

Z
zandersonAug 14, 2025
Why won't my Toro 75303 engine start?
- M
  morajonathanAug 14, 2025
  Several factors can cause your Toro Lawn Mower engine to fail to start or keep running. First, ensure the fuel tank isn't empty by filling it. If your model has a choke, make sure it's turned on. Check the air filter; a dirty filter should be cleaned or replaced. Also, verify the spark plug wire is securely connected to the spark plug and that the spark plug isn't damaged; replace if necessary. Other potential issues include a dirty fuel filter (replace it), low oil level in the crankcase (add oil), or incorrect fuel in the fuel tank (drain and replace with the proper type). If these steps don't resolve the issue, it may be due to dirt, water, or stale fuel in the fuel system, in which case you should contact an Authorized Service Dealer.
B
Bradley RobinsonAug 17, 2025
What to do if my Toro 75303 engine overheats?
- M
  Michelle ReidAug 17, 2025
  If your Toro Lawn Mower engine is overheating, several issues could be the cause. Start by reducing the ground speed, as the engine load may be excessive. Then, check the oil level in the crankcase and add oil if it's low. Also, inspect the cooling fins and air passages under the engine-blower housing for obstructions and remove any you find. A dirty air cleaner can also cause overheating, so clean or replace the air-cleaner element. If the problem persists, there may be dirt, water, or stale fuel in the fuel system, and you should contact an Authorized Service Dealer.
A
averyrichardAug 20, 2025
How to fix a Toro Lawn Mower engine that is losing power?
- P
  Penny WoodsAug 20, 2025
  If your Toro Lawn Mower engine is losing power, begin by reducing the ground speed, as the engine load might be too high. Check the air cleaner and clean it if it's dirty. Ensure the oil level in the crankcase is adequate; add oil if needed. Inspect the cooling fins and air passages under the engine blower housing for any blockages and clear them. Replace the spark plug if it is pitted, fouled, or has an incorrect gap. If these steps don't resolve the issue, the fuel-tank vent may be blocked, there might be dirt in the fuel filter, or the fuel system may contain dirt, water, or stale fuel. In such cases, or if there is incorrect fuel in the fuel tank, you should contact an Authorized Service Dealer.
D
Donald HortonAug 25, 2025
How to fix uneven cutting height on my Toro 75303 Lawn Mower?
- N
  Nicole BowenAug 25, 2025
  To correct an uneven cutting height on your Toro Lawn Mower, begin by sharpening the blades. If a cutting blade is bent, replace it. Ensure the mower is level from side to side and front to rear. If your mower has an anti-scalp roller, make sure it's set correctly. Clean the underside of the mower deck if it's dirty. Finally, check and adjust the tire pressure as needed. If a blade spindle is bent, contact an Authorized Service Dealer.
D
Dylan PetersonAug 27, 2025
What to do if my Toro Lawn Mower won't drive?
- B
  Blake ScottAug 27, 2025
  If your Toro Lawn Mower isn't driving, first check if the bypass valves are open and close the tow valves. If this doesn't solve the problem, the traction belts may be worn, loose, or broken, or the traction belts are off the pulleys, or the transmission has failed, and you should contact an Authorized Service Dealer.
R
Randall BuchananAug 30, 2025
What to do if Toro 75303 starter does not crank?
- H
  hillgreggAug 31, 2025
  If the starter on your Toro Lawn Mower doesn't crank, first ensure the blade-control switch is disengaged. Next, check that the motion-control levers are in the NEUTRAL-LOCK position. If these aren't the issue, the battery might be dead, so try charging it. Also, inspect the electrical connections for corrosion or looseness and ensure they have good contact. Finally, check the fuse and replace it if it's blown. If the problem persists, a relay or switch may be damaged, and you should contact an Authorized Service Dealer.
R
Randall ElliottSep 2, 2025
Why is my Toro 75303 vibrating so much?
- C
  Chris RhodesSep 2, 2025
  Abnormal vibration in your Toro Lawn Mower can stem from several sources. Start by checking the cutting blades; if they're bent or unbalanced, replace them. Ensure the blade mounting bolt is tightened securely. Also, inspect the engine mounting bolts and tighten them if they are loose. Check the engine pulley, idler pulley, or blade pulley for looseness and 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
Rachael WatkinsSep 6, 2025
What to do if the blades on my Toro 75303 Lawn Mower do not rotate?
- D
  Donna CannonSep 6, 2025
  If the blades on your Toro Lawn Mower aren't rotating, the drive belt may be worn, loose, or broken; install a new drive belt. If the drive belt is off the pulley, install it and check the adjusting shafts and belt guides for the correct position. Also, the mower belt may be worn, loose, or broken, so install a new mower belt. If the power-takeoff (PTO) switch or PTO clutch is faulty, contact an Authorized Service Dealer.
S
Sarah AcostaSep 9, 2025
Why is the fuel tank collapsing on my Toro 75303?
- A
  Alexander CortezSep 9, 2025
  If the fuel tank on your Toro Lawn Mower is collapsing or the machine frequently runs out of fuel, the air-cleaner paper element may be clogged. Clean the paper element.

Toro 75303 Specifications

General

Brand	Toro
Model	75303
Category	Lawn Mower
Language	English

Summary

Safety

General Safety

General safety instructions to avoid serious personal injury and product damage.

Slope Safety

Instructions and visual guide for operating the machine on slopes safely.

Safety Decals

Identification and explanation of safety decals and their meaning.

Product Overview

Controls

Control Panel Overview

Illustration and labels for the main control panel of the machine.

Key Operation Controls

Explanation of controls for throttle, choke, motion, key switch, and blade engagement.

Safety and Parking Controls

Details on neutral-lock, parking brake, and deck-lift controls.

Specifications

Operation

Before Operation Safety

Essential safety precautions to take before operating the machine.

Fuel Safety

Precautions related to the flammability and explosiveness of fuel.

Adding Fuel

Recommended fuel type, additives, and steps for safely filling the fuel tank.

Routine Checks and Break-in

Daily maintenance, new machine break-in, and safety-interlock system procedures.

Seat and Lever Adjustment

Adjusting the operator seat and motion-control levers for comfort.

During Operation

During Operation Safety

Essential safety precautions to take while operating the machine.

Parking Brake Operation

Instructions for engaging and disengaging the parking brake.

Blade Control Operation

Instructions for engaging and disengaging the blade-control switch (PTO).

Throttle, Choke, and Key Switch Operation

How to operate the throttle, choke, and key switch for engine control.

Starting and Shutting Off Engine

Starting the Engine

Step-by-step procedure for starting the engine, including choke usage.

Shutting Off the Engine

Procedure for safely shutting down and turning off the engine.

Driving the Machine

Driving Forward

Instructions for driving the machine forward using the motion-control levers.

Driving Backward

Instructions for driving the machine backward using the motion-control levers.

Mowing Features

Using the Side Discharge

Instructions on how to use the side discharge feature of the mower.

Adjusting the Height of Cut

Procedure for adjusting the cutting height of the mower deck.

Mowing Tips and Adjustments

Adjusting Anti-Scalp Rollers

How to adjust the anti-scalp rollers when changing the cutting height.

Operating Tips

Tips for mowing, adjusting anti-scalp rollers, and improving cut quality.

After Operation

After Operation Safety

Essential safety precautions to take after operating the machine.

Pushing by Hand

Instructions on how to safely push the machine by hand.

Transporting the Machine

Trailer Selection

Guidelines for selecting an appropriate trailer for safe machine transport.

Loading and Unloading Machine

Procedure for safely loading and unloading the machine onto a trailer.

Maintenance

Maintenance Safety

Essential safety precautions to follow during machine maintenance.

Recommended Maintenance Schedule

Schedule outlining recommended maintenance tasks and intervals for the machine.

Engine Maintenance

Procedures for engine safety and servicing the air cleaner.

Engine Oil Service

Steps for checking and changing the engine oil and oil filter.

Spark Plug Service

Procedures for checking, removing, and installing the spark plug.

Cooling System Cleaning

Procedure for cleaning the engine's cooling system.

Fuel System Maintenance

Procedures for maintaining the fuel system, including filter replacement.

Fuel Filter Replacement

Procedure for replacing the in-line fuel filter.

Electrical System Maintenance

Procedures for maintaining the electrical system, including safety.

Electrical Safety

Safety precautions related to the electrical system maintenance.

Battery Service

Procedures for removing, charging, and installing the machine's battery.

Fuse Servicing

Information on fuse types and how to replace them.

Drive System Maintenance

Procedures for maintaining the drive system, including tire pressure.

Tire Pressure Check

Procedure for checking and maintaining correct tire pressure for optimal performance.

Belt Maintenance

Procedures for inspecting belts for wear and replacing the mower belt.

Belt Inspection and Replacement

Procedures for inspecting belts for wear and replacing the mower belt.

Mower Maintenance

Procedures for maintaining the mower deck and blades.

Blade Safety and Inspection

Safety precautions and procedures for inspecting mower blades.

Checking for Bent Blades

Method for checking if mower blades are bent or unbalanced.

Blade Removal, Installation, and Sharpening

Steps for removing, installing, and sharpening mower blades.

Mower Deck Leveling

Procedures for leveling the mower deck.

Checking Deck Level and Slope

Procedures to check side-to-side level and front-to-rear blade slope.

Mower Deck Removal and Installation

Step-by-step instructions for removing and installing the mower deck.

Grass Deflector Replacement

Procedure for replacing the grass deflector on the mower deck.

Cleaning and Storage

Procedures for cleaning the machine and preparing it for storage.

Waste Disposal and Storage Safety

Guidelines for proper waste disposal and safety precautions for machine storage.

Toro 75303 User Manual

Table of Contents

Other manuals for Toro 75303

Questions and Answers:

Toro 75303 Specifications

Summary

Safety

General Safety

Slope Safety

Safety Decals

Product Overview

Controls

Control Panel Overview

Key Operation Controls

Safety and Parking Controls

Specifications

Operation

Before Operation Safety

Fuel Safety

Adding Fuel

Routine Checks and Break-in

Seat and Lever Adjustment

During Operation

During Operation Safety

Parking Brake Operation

Blade Control Operation

Throttle, Choke, and Key Switch Operation

Starting and Shutting Off Engine

Starting the Engine

Shutting Off the Engine

Driving the Machine

Driving Forward

Driving Backward

Mowing Features

Using the Side Discharge

Adjusting the Height of Cut

Mowing Tips and Adjustments

Adjusting Anti-Scalp Rollers

Operating Tips

After Operation

After Operation Safety

Pushing by Hand

Transporting the Machine

Trailer Selection

Loading and Unloading Machine

Maintenance

Maintenance Safety

Recommended Maintenance Schedule

Engine Maintenance

Engine Oil Service

Spark Plug Service

Cooling System Cleaning

Fuel System Maintenance

Fuel Filter Replacement

Electrical System Maintenance

Electrical Safety

Battery Service

Fuse Servicing

Drive System Maintenance

Tire Pressure Check

Belt Maintenance

Belt Inspection and Replacement

Mower Maintenance

Blade Safety and Inspection

Checking for Bent Blades

Blade Removal, Installation, and Sharpening

Mower Deck Leveling

Checking Deck Level and Slope

Mower Deck Removal and Installation

Grass Deflector Replacement

Cleaning and Storage

Waste Disposal and Storage Safety

Cleaning and Storage Procedure

Battery Storage

Troubleshooting

Schematics

Electrical Diagram