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
Adam MichaelSep 12, 2025
Why is my Toro 74785 Lawn Mower vibrating abnormally?
- R
  Ryan MartinezSep 12, 2025
  If you're experiencing abnormal vibration with your Toro Lawn Mower, here are some things to inspect: 1. Check if the engine mounting bolts are loose and tighten them. 2. Ensure the engine pulley, idler pulley, or blade pulley is not loose and tighten the appropriate pulley. 3. If the cutting blade(s) is/are bent or unbalanced, install a new cutting blade(s). 4. Also, make sure the blade mounting bolt is tightened.
M
Matthew LeeAug 25, 2025
Why Toro 74785 engine will not start?
- M
  martinezjohnAug 25, 2025
  Your Toro Lawn Mower engine might fail to start due to several reasons. The fuel tank may be empty, so fill it. The air cleaner could be dirty; in this case, clean or replace the air cleaner element. A loose or disconnected spark plug wire could also be the culprit; install the wire on the spark plug. Alternatively, the spark plug may be pitted, fouled, or have an incorrect gap; install a new, correctly gapped spark plug. Other potential causes include dirt in the fuel filter (replace the fuel filter), incorrect fuel in the fuel tank (drain the tank and replace the fuel with the proper type), or a low oil level in the crankcase (add oil). If the problem persists, it may be due to dirt, water, or stale fuel in the fuel system.
M
mbeasleyAug 25, 2025
Why Toro Lawn Mower engine does not start?
- S
  susan34Aug 26, 2025
  Your Toro Lawn Mower engine might not be starting due to several reasons. Check if the fuel tank is empty and fill it if needed. Ensure the choke is on. A dirty air cleaner can also be the culprit, so clean or replace it. Inspect the spark plug wire(s) and ensure they are properly connected. The spark plug(s) might be pitted, fouled, or have an incorrect gap, in which case you should install a new one with the correct gap. Also, check for dirt in the fuel filter and replace it if necessary. Low oil level in the crankcase may also cause this issue, so add oil if needed. Finally, ensure that the fuel tank has the proper type of fuel.
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.
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.
M
Maureen HowardSep 12, 2025
What to do if my Toro 74785 starter does not crank?
- B
  Barbara RogersSep 12, 2025
  If the starter on your Toro Lawn Mower isn't cranking, here are a few things to check: 1. Ensure the blade-control switch is disengaged. 2. The battery might be dead, so charge it. 3. Check the electrical connections for corrosion or looseness and ensure they have good contact. 4. A blown fuse could also be the culprit, so replace it.
K
Kelly BlackSep 8, 2025
What to do if the blades do not rotate on my Toro 74785?
- D
  Derrick MilesSep 9, 2025
  If the blades on your Toro Lawn Mower do not rotate, install a new drive belt if the current one is worn, loose, or broken. If the drive belt is off of the pulley, install it, ensuring the adjusting shafts and belt guides are in the correct position. If the power takeoff (PTO) switch or PTO clutch is faulty, contact an Authorized Service Dealer. Install a new mower belt if the current one is worn, loose, or broken.
R
Richard BerrySep 9, 2025
How to fix Toro 74785 when the engine overheats?
- S
  shawn56Sep 10, 2025
  If your Toro Lawn Mower engine is overheating, several factors could be the cause. First, the engine load may be excessive, so reduce your ground speed. Second, the oil level in the crankcase may be low, so add oil. Third, the cooling fins and air passages under the engine blower housing may be obstructed, so remove any obstructions. Lastly, the air cleaner might be dirty, so clean or replace it.
S
seanayalaSep 3, 2025
Why is my Toro Lawn Mower cutting height uneven?
- A
  April ClarkSep 3, 2025
  Uneven cutting height with your Toro Lawn Mower can be due to several reasons. The blade(s) might not be sharp, so sharpen them. A cutting blade(s) may be bent, so install a new cutting blade(s). Ensure the mower is level from side-to-side and front-to-rear. Check that the anti-scalp wheel is set correctly and adjust its height if needed. A dirty mower underside can also cause this, so clean it. Finally, verify that the tire pressure is correct and adjust it accordingly. If a blade spindle is bent, it is recommended to contact an Authorized Service Dealer.
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.

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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