Toro 74785 User Manual

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FormNo.3400-841RevB

TimeCutter

®

SW4200Riding

Mower

ModelNo.74785—SerialNo.400000000andUp

Registeratwww.Toro.com.

OriginalInstructions(EN)

*3400-841*B

Table of Contents

Questions and Answers:

A
Ashley PetersonSep 4, 2025
What to do if Toro 74785 Lawn Mower blades do not rotate?
- T
  Timothy WillisSep 4, 2025
  If the blades on your Toro Lawn Mower aren't rotating, the drive belt might be worn, loose, or broken; install a new drive belt. Alternatively, the drive belt could be off the pulley; install the drive belt and check the adjusting shafts and belt guides for the correct position. The mower belt may be worn, loose, or broken; install a new mower belt. If the Power Take-Off (PTO) switch or PTO clutch is faulty, it is recommended to contact an Authorized Service Dealer.
A
Ashley RandallAug 23, 2025
Why won't my Toro 74785 engine start?
- P
  patricia51Aug 23, 2025
  If your Toro Lawn Mower engine isn't starting, starts with difficulty, or won't stay running, several factors could be at play. Make sure the fuel tank isn't empty by filling it. Ensure the choke is on. A dirty air cleaner can cause issues, so clean or replace it. Check that the spark plug wire(s) is securely connected to the spark plug. Consider replacing the spark plug(s) with a new, correctly gapped one. Replace the fuel filter if it's clogged. Ensure the fuel tank is filled with the proper type of fuel and that the oil level in the crankcase is adequate by adding oil if needed.
L
Luis CampbellSep 1, 2025
What to do if my Toro Lawn Mower engine overheats?
- M
  Mrs. Amy StewartSep 1, 2025
  If your Toro Lawn Mower engine is overheating, there are several potential causes. The engine load might be excessive, so reduce ground speed. The oil level in the crankcase could be low; add oil to the crankcase. Check for obstructions in the cooling fins and air passages under the engine blower housing and remove them. The air cleaner might be dirty, so clean or replace the air cleaner element. If these steps don't resolve the issue, there might be dirt, water, or stale fuel in the fuel system.
F
Frank WarrenAug 31, 2025
Why are the blades not rotating on my Toro 74785 Lawn Mower?
- T
  Thomas ForbesAug 31, 2025
  If the blades on your Toro Lawn Mower aren't rotating, check the following: 1. The drive belt may be worn, loose, or broken, so install a new one. 2. If the drive belt is off the pulley, install it and check the adjusting shafts and belt guides for the correct position. 3. The mower belt may be worn, loose, or broken, so install a new mower belt.
K
kimloriAug 30, 2025
How to fix uneven cutting height on my Toro Lawn Mower?
- S
  Stephanie RodriguezAug 30, 2025
  If your Toro Lawn Mower is leaving an uneven cut, several factors could be responsible. Start by sharpening the blade(s). If a cutting blade(s) is/are bent, replace it. Ensure the mower is level from side-to-side and front-to-rear. Adjust the anti-scalp wheel height if it's not set correctly. Clean the underside of the mower if it's dirty. Finally, check and adjust the tire pressure.
B
baileyderekAug 29, 2025
Why is my Toro 74785 losing power?
- G
  Glenda HowardAug 29, 2025
  If your Toro Lawn Mower engine is losing power, consider the following possible causes. The engine load may be excessive, so reduce the ground speed. A dirty air cleaner can cause power loss, so clean the air cleaner element. Low oil level in the crankcase can be a factor, so add oil. Check for obstructions in the cooling fins and air passages under the engine blower housing and remove them. Replace the spark plug(s) if it's pitted, fouled, or the gap is incorrect. Replace the fuel filter if it is dirty. Also, ensure you are using the correct fuel type.
B
Bobby RiveraAug 29, 2025
Why does my Toro 74785 Lawn Mower engine not start, start hard, or fail to keep running?
- H
  hannah19Aug 29, 2025
  Several factors can cause this issue. It might be due to an empty fuel tank, so ensure you fill it. If your model has a choke, make sure it's turned on. A dirty air cleaner could also be the culprit; try cleaning or replacing it. Check that the spark-plug wire(s) is properly connected, and the spark plug(s) isn't damaged or incorrectly gapped—replace if needed. Other potential causes include a dirty fuel filter (replace it), incorrect fuel type (drain and replace with the correct type), or low oil level in the crankcase (add oil). If the issue persists, it could be due to dirt, water, or stale fuel in the fuel system, and you should contact an Authorized Service Dealer.
D
dunnheatherAug 28, 2025
Why is the cutting height uneven on my Toro 74785 Lawn Mower?
- F
  fowlerandrewAug 28, 2025
  If the cutting height of your Toro Lawn Mower is uneven, ensure the blade(s) is sharp and sharpen it if needed. If a cutting blade(s) is bent, install a new one. Level the mower from side-to-side and front-to-rear. Adjust the anti-scalp wheel height if it is not set correctly. Clean the underside of the mower if it is dirty. Adjust the tire pressure to the correct level. If a blade spindle is bent, contact an Authorized Service Dealer.
H
hestermariaAug 27, 2025
How to fix Toro 74785 Lawn Mower when the starter does not crank?
- R
  Ryan LewisAug 27, 2025
  If the starter on your Toro Lawn Mower does not crank, make sure the blade-control switch is disengaged. If not, move the blade-control switch to Disengaged. Check the battery and charge it if it's dead. Inspect the electrical connections for corrosion or looseness and ensure they have good contact. Also, check the fuse and replace it if it's blown. If a relay or switch is damaged, contact an Authorized Service Dealer.
E
erinjohnsonAug 26, 2025
What to do if my Toro 74785 engine won't start?
- J
  Janice HessAug 26, 2025
  If your Toro Lawn Mower engine does not start, starts hard, or fails to keep running, start by checking if the fuel tank is empty and fill it if necessary. Ensure the choke is on by moving the choke lever to the On position. Inspect the air cleaner for dirt and clean or replace the element. Verify that the spark plug wire(s) is securely installed on the spark plug. Check the spark plug(s) for pitting, fouling, or incorrect gap and replace if needed. If there is dirt in the fuel filter, replace it. If there is incorrect fuel in the fuel tank, drain the tank and replace the fuel with the proper type. Finally, check the oil level in the crankcase and add oil if it is low. If you suspect dirt, water, or stale fuel is in fuel system, contact an Authorized Service Dealer.

Toro 74785 Specifications

General

Model	74785
Type	Zero Turn Mower
Engine Type	4-cycle
Engine Displacement	708cc
Engine Brand	Toro
Cutting Height Positions	7
Drive Type	Rear-wheel drive
Drive System	Hydrostatic
Start Type	Electric
Deck Material	Steel
Mulching Capability	Yes
Bagging Capability	Optional
Side Discharge Capability	Yes
Cutting Height	1.5 - 4.5 inches

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