Toro Wheel Horse 78345 User Manual

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Operator’s Manual

IMPORTANT: Read this manual carefully. It contains information about your

safety and the safety of others. Also become familiar with the controls and

their proper use before you operate the product.

FORM NO. 3318–947 Rev A

Wheel

Horse



42” Side Discharge

Mower

for

Classic

Garden T

ractor

Model No. 78345 – 7900001 & Up

Questions and Answers:

R
Raymond WoodAug 10, 2025
What to do if blades do not rotate on Toro Wheel Horse 78345?
- B
  Brenda HernandezAug 10, 2025
  If the blades on your Toro Lawn Mower aren't rotating, it could be due to a few reasons. The blade drive belt may be worn, loose, or broken, in which case you should install a new blade drive belt. Another possibility is that the blade drive belt is off the pulley; reinstall it and check the idler pulley and belt guides for correct positioning. Lastly, the PTO belt might be worn, loose, or broken, requiring a new PTO belt.
S
susan22Aug 15, 2025
How to fix uneven cutting height on Toro Lawn Mower?
- V
  veronicarichardsonAug 15, 2025
  Uneven cutting height on your Toro Lawn Mower can be attributed to several factors. Start by checking and setting the tire pressure to the correct levels. Ensure the mower is level from side to side and front to rear. Also, a dirty mower underside can interfere with cutting; clean it thoroughly.
G
gibsonjenniferAug 20, 2025
What to do if my Toro Wheel Horse 78345 Lawn Mower has an uneven cutting height?
- A
  andrea78Aug 20, 2025
  If your Toro Lawn Mower has an uneven cutting height, begin by setting the correct tire pressure. Also, ensure the mower is level from side to side and front to rear. Another potential issue is a dirty mower underside, which requires cleaning.
J
Justin BellAug 26, 2025
Why is my Toro Wheel Horse 78345 vibrating abnormally?
- G
  guerramariaAug 26, 2025
  If your Toro Lawn Mower is vibrating abnormally, several issues could be the cause. It might be due to a bent or unbalanced cutting blade, which requires installing new cutting blades. Alternatively, the blade mounting bolt or engine mounting bolts could be loose, and you should tighten them. A loose engine pulley, idler pulley, or blade pulley can also cause vibration, so check and tighten the appropriate pulley. If the engine pulley is damaged, it is recommended to contact an Authorized Service Dealer.
A
Ariel GarciaAug 30, 2025
Why Toro Lawn Mower blades do not rotate?
- K
  Kelly CarterAug 30, 2025
  The blades of your Toro Lawn Mower might not be rotating due to a worn, loose, or broken blade drive belt, requiring a new blade drive belt. Alternatively, the blade drive belt may be off the pulley; in this case, install the blade drive belt and inspect the idler pulley and belt guides for correct positioning. A worn, loose, or broken PTO belt can also be the cause, and you would need to install a new PTO belt.
R
romeromichaelSep 3, 2025
How to fix abnormal vibration in my Toro Wheel Horse 78345?
- S
  scottcollinsSep 3, 2025
  Abnormal vibration in your Toro Lawn Mower can stem from several causes. The cutting blade(s) might be bent or unbalanced, suggesting the installation of new cutting blade(s). A loose blade mounting bolt requires tightening. Similarly, check and tighten the engine mounting bolts. A loose engine pulley, idler pulley, or blade pulley should be tightened as well. If the engine pulley is damaged, it is recommended to contact an Authorized Service Dealer.

Toro Wheel Horse 78345 Specifications

General

Cylinders	2
Transmission	Hydrostatic
Drive	2WD
Cutting Height	1.5 - 4.5 inches
Turning Radius	18 inches
Fuel Tank Capacity	3.5 gallons

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