Toro TimeCutter 74777 - User Manual

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FormNo.3425-432RevD

TimeCutter

®

RidingMowers

ModelNo.74726—SerialNo.404314200andUp

ModelNo.74726TA—SerialNo.400000000andUp

ModelNo.74760—SerialNo.404314200andUp

ModelNo.74760TA—SerialNo.400000000andUp

ModelNo.74766—SerialNo.404314200andUp

ModelNo.74766TA—SerialNo.400000000andUp

ModelNo.74768—SerialNo.404314200andUp

ModelNo.74772—SerialNo.404314000andUp

ModelNo.74773—SerialNo.404314000andUp

ModelNo.74774—SerialNo.404310000andUp

ModelNo.74774TA—SerialNo.400000000andUp

ModelNo.74777—SerialNo.404314200andUp

ModelNo.74778—SerialNo.404314200andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3425-432*D

Table of Contents

Questions and Answers:

T
Tiffany VasquezAug 5, 2025
Why does my Toro TimeCutter 74777 engine not start, start hard, or fail to keep running?
- M
  Michael JamesAug 5, 2025
  Several factors can cause this issue. The fuel tank might be empty, so refill it. The air cleaner could be dirty, requiring cleaning or replacement. Check if the spark plug wire(s) is loose or disconnected and install the wire(s) on the spark plug. A spark plug(s) may be pitted, fouled, or have an incorrect gap, so install a new, correctly gapped spark plug(s). The fuel filter may be dirty, so replace it. The oil level in the crankcase might be low, so add oil to the crankcase. Finally, ensure that you are using the correct fuel type; if not, drain the tank and replace the fuel with the proper type.
R
Robert JohnsonAug 9, 2025
Why is my Toro TimeCutter 74777 Lawn Mower cutting height uneven?
- M
  Morgan KelleyAug 9, 2025
  An uneven cutting height on your Toro Lawn Mower can be due to several reasons. The blade(s) may not be sharp, so sharpen the blade(s). A cutting blade(s) may be bent, so install a new cutting blade(s). The mower might not be level, so level the mower from side-to-side and front-to-rear. An anti-scalp wheel may not be set correctly, so adjust the anti-scalp wheel height. The underside of the mower could be dirty, so clean it. Finally, the tire pressure might be incorrect, so adjust the tire pressure.
L
littleedwardAug 13, 2025
What to do if the blades do not rotate on my Toro TimeCutter 74777?
- A
  Autumn WilliamsAug 13, 2025
  If the blades on your Toro Lawn Mower aren't rotating, it could be due to a worn, loose, or broken drive belt, so install a new drive belt. Alternatively, the drive belt might be off the pulley, so install the drive belt and check the adjusting shafts and belt guides for the correct position. Also, the mower belt could be worn, loose, or broken, so install a new mower belt.
V
vasqueznancyAug 17, 2025
Why is my Toro Lawn Mower engine losing power?
- S
  Susan CervantesAug 17, 2025
  A loss of power in your Toro Lawn Mower engine can stem from several causes: excessive engine load, which can be resolved by reducing ground speed; a dirty air cleaner, which requires cleaning; or a low oil level in the crankcase, necessitating the addition of oil. Furthermore, check for obstructions in the cooling fins and air passages under the engine blower housing and remove them if present. Ensure the spark plug(s) is in good condition; if pitted, fouled, or incorrectly gapped, replace it. Check the fuel filter for dirt and replace if necessary. Finally, if you are using incorrect fuel, drain the tank and replace it with the proper type.
E
Elizabeth Wagner DDSAug 22, 2025
What to do if my Toro TimeCutter 74777 engine overheats?
- S
  Stacy HendersonAug 22, 2025
  If your Toro Lawn Mower engine is overheating, several factors could be the cause. First, the engine load might be excessive, so reduce the ground speed. Second, the oil level in the crankcase might be low, so add oil to the crankcase. Third, check the cooling fins and air passages under the engine blower housing for obstructions and remove them. Fourth, a dirty air cleaner can cause overheating, so clean or replace the air-cleaner element.
P
paulcohenAug 27, 2025
What to do if my Toro Lawn Mower starter does not crank?
- M
  melissarobinsonAug 27, 2025
  If the starter on your Toro Lawn Mower isn't cranking, here are a few things to check: Ensure the blade-control switch is disengaged. Make sure the motion-control levers are in the PARK position. Verify the battery isn't dead by charging it. Inspect the electrical connections for corrosion or looseness, and ensure they have good contact. Check for a blown fuse and replace it if necessary.
M
Michael SandersAug 30, 2025
What to do if my Toro TimeCutter 74777 has an abnormal vibration?
- K
  Kristy BushAug 30, 2025
  If your Toro Lawn Mower is vibrating excessively, check the following: Tighten any loose engine-mounting bolts. Ensure the engine pulley, idler pulley, or blade pulley is tightened appropriately. If the cutting blade(s) is bent or unbalanced, install a new cutting blade(s). Also, tighten any loose blade-mounting bolts.

Toro TimeCutter 74777 Specifications

General

Cutting Width	54 inches
Transmission	Hydrostatic
Blade Tip Speed	18, 000 ft/min
Cutting Height	1.5 - 4.5 inches
Transmission System	Hydrostatic
Turning Radius	Zero-Turn
Deck Material Gauge	10
Fuel Capacity	3 gallons
Ground Speed (Reverse)	3 mph
Warranty	3 years

Summary

Safety

Slope Indicator

Fuel Safety

Adding Fuel

Using the Safety-Interlock System

Testing the Safety-Interlock System

Adjusting the MyRide Suspension System

Adjusting the Motion-Control Levers

During Operation

General Safety

Key safety warnings and guidelines to follow during machine operation.

Slope Safety

Operating the Mower Blade-Control Switch (PTO)

Starting the Engine

Shutting Off the Engine

Driving the Machine

Adjusting the Height of Cut

After Operation

After Operation Safety

Transporting the Machine

Guidelines for safely transporting the mower via trailer or truck.

Loading the Machine

Pushing the Machine by Hand

Pushing the Machine

Maintenance

Recommended Maintenance Schedule(s)

A table outlining maintenance procedures and their recommended service intervals.

Maintenance Safety

Crucial safety warnings and procedures to follow before and during maintenance.

Lubrication

Greasing the Bearings

Engine Maintenance

Engine Safety

Safety precautions specific to engine maintenance and operation.

Servicing the Air Cleaner

Instructions for cleaning and replacing the air cleaner elements.

Servicing the Air Cleaner Elements

Servicing the Engine Oil

Checking the Engine-Oil Level

Changing the Engine Oil and Oil Filter

Step-by-step guide for draining and replacing engine oil and filter.

Servicing the Spark Plug

Fuel System Maintenance

Replacing the In-Line Fuel Filter

Electrical System Maintenance

Electrical System Safety

Safety precautions when working with the electrical system, including battery handling.

Servicing the Battery

Guide for removing and servicing the machine's battery.

Battery Charging and Installation

Drive System Maintenance

Checking the Tire Pressure

Releasing the Electric Brake

Belt Maintenance

Replacing the Mower-Deck Belt

Detailed steps for removing and installing the mower deck belt.

Mower Maintenance

Blade Safety

Critical safety information regarding mower blades and potential hazards.

Servicing the Cutting Blades

Instructions for inspecting, sharpening, and replacing mower blades for optimal cutting.

Checking for Bent Blades

Leveling the Mower Deck

Leveling from Side to Side

Adjusting the Front-to-Rear Blade Slope

Removing the Mower Deck

Installing the Mower

Storage

Storage Safety

Safety precautions to follow before and during machine storage.

Cleaning and Storage

Troubleshooting

Engine Overheating

Potential causes and corrective actions for engine overheating issues.

Starter Not Cranking

Troubleshooting steps for when the engine starter motor does not engage.

Engine Start;Run Issues

Solutions for problems related to the engine not starting or running inconsistently.

Engine Losing Power

Possible causes and fixes for a reduction in engine power.

Machine Does Not Drive

Troubleshooting steps for when the machine fails to move.

Abnormal Vibration

Uneven Cutting Height

Blades Not Rotating

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