John Deere S120 Problems

John Deere is a well-respected name in the lawn tractor industry and has earned its reputation for manufacturing high-quality products. However, even the most reliable equipment can experience issues from time to time and the John Deere S120 is no exception. In this article, we provide an overview of some of the common problems associated with this model as well as suggestions on how to troubleshoot them effectively.

Keep reading to find out how to keep your John Deere S120 running smoothly.

Problem Cause Solution
Engine won’t start Dead battery Charge or replace battery
Engine runs rough Dirty air filter Replace air filter
Engine overheats Low coolant level Add coolant or check for leaks
Blades won’t engage Faulty switch or belt Replace switch or belt
Uneven cutting Worn blades Sharpen or replace blades

Understanding John Deere S120 Problems

understanding john deere s120 problems
understanding john deere s120 problems

The John Deere S120 is a reliable lawn tractor designed to make yard work easier and more efficient. However, like all machines, it can sometimes experience issues that impact its performance. Common problems with the John Deere S120 include clogged air filters, dirty spark plugs, worn blades, and low fuel levels. Fortunately, these are all easy to resolve if you have the right tools and knowledge. With proper maintenance and occasional troubleshooting of your John Deere S120 lawn tractor, you can enjoy years of reliable service.

Engine won’t start

If an engine does not start, the most probable cause of this issue is a depleted battery. To resolve it, the battery must be recharged or changed. Additionally, it is imperative to inspect the battery connections to guarantee that they are clean and firmly connected.

Engine runs rough

It is highly recommended that the air filter of a lawn tractor be replaced at least once a year, or more often if it is frequently used. A dirty air filter can cause an engine to run rough and negatively affect performance. To fix this issue, replacing the air filter is necessary as it will help restore the engine’s power and efficiency.

Engine overheats

If the engine of a vehicle is exhibiting signs of overheating, one of the possible causes may be either a low coolant level or a leakage in the cooling system. It is recommended to check and verify the coolant level first and add more if needed. If there are suspicions of any kind of leak, it would be appropriate to inspect both hoses and radiator for any visible signs of damage or wear.

Blades won’t engage

If the blades of a machine are not engaging, it is possible that the issue could be due to either a faulty switch or belt. To diagnose this problem, it is recommended to first check the condition of the switch and replace it if necessary. If the switch appears to be in good working order, then an inspection of the belt should also be done to determine if there are any signs of damage or wear that would necessitate its replacement.

Uneven cutting

If uneven cutting is observed, it could be a sign of worn blades. To remedy this, the blades should be sharpened or replaced. It is recommended that one takes care to sharpen or replace their blades at least once annually, and more often for those who use their lawn tractor on a regular basis.

Keeping Your John Deere S120 Running Smoothly: Key Implications

  1. Regular maintenance of the John Deere S120 lawn tractor can significantly reduce common issues and prolong its life span.
  2. Knowing how to troubleshoot common problems with the John Deere S120 is essential for improving efficiency and cutting down on repair costs.
  3. Proper use, storage and regular maintenance ensure that the John Deere S120 lawn tractor continues running at peak performance levels for many years to come.

Troubleshooting John Deere S120 Problems

The John Deere S120 is a dependable and cost-effective lawn tractor, but like any piece of machinery, it can experience issues. To ensure that the tractor continues to run effectively for years to come, it’s essential to understand the common problems and how to troubleshoot them. Additionally, regular maintenance should be performed on the unit in order to prevent larger issues from arising. By addressing any current or potential problems promptly with knowledge and care, you can keep your lawn looking beautiful for many seasons ahead.

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2 thoughts on “John Deere S120 Problems”

    • The beeping on your John Deere S120 mower could be caused by a few issues, such as low oil level, clogged air filter, or an engaged parking brake. Check these components and consult the owner’s manual for specific troubleshooting steps.


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