John Deere 4020 Problems : 4 Common Issues (Explained)

As a farmer it is crucial to know and understand the importance of having a reliable tractor that can handle all your farming needs and wants. The John Deere 4020 is a popular tractor model that has been around for many years (and the John Deere name.) However, like any other machinery, it is prone to having problems. In this article we will be looking at the most common John Deere 4020 problems and hopefully provide effective solutions to help you rightly solve them.

Table of Contents

1. Electrical System Is Not Perfect

In fact one of the most common problems that farmers face with their John Deere 4020 is with electrical issues. If your tractor has an electrical problem, it can be frustrating and time-consuming to diagnose the issue. But in order to operate the entire John Deere 4020 correctly, all electrical systems should be firing on all cylinders (or working properly.) And these issues can range from the battery not having enough juice, to a blown out fuse that may need replacing.

What You Can Do

  • Always make it a point to check the battery to ensure it is fully charged and the connections are tight. If the battery is low or the connections are loose, your tractor may not start or run properly.
  • Also check the fuse box for any blown fuses. If a fuse is blown, replace it with a new one of the same size and amperage. It is important to note that if a fuse blows repeatedly, there may be an underlying electrical problem with your John Deere 4020 that needs to be addressed.
  • But if the battery and fuses are not the problem, check the wiring harness for any loose or damaged wires. It is also important to ensure that the wiring harness is properly connected to the tractor’s electrical components.
  • If you are still having electrical issues, it is always best to consult with a professional mechanic who has experience working on John Deere tractors. Because it is a complex machine after all.

2. You May Experience Issues With Its Transmission

Another common problem that farmers experience with their John Deere 4020 is transmission issues. If your tractor’s transmission is not working properly, it can affect the tractor’s performance and make it very difficult to operate. The transmission helps to transfer mechanical power from the front (engine) of the John Deere 4020 to the back efficiently.

What You Can Do

  • Make sure the transmission fluid is level. If the fluid level is low, add more fluid to bring it to the recommended level. It is important to use the recommended type of fluid specified in the owner’s manual. Because this can also affect the John Deere’s overall performance.
  • If the transmission fluid level is fine, check the transmission filter for any clogs or damage. A clogged filter can cause the transmission to not function properly. If the filter is clogged, always replace it with a new one.
  • However if transmission fluid and filter are not the problem, check the shift linkage for any damage or wear. It is also important to ensure that the shift linkage is properly adjusted.
  • If you are still having problems with the John Deere 4020’s transmission, it may be best to consult with a professional mechanic who has experience working on John Deere tractors.

3. John Deere 4020’s Hydraulic System May Give In To Certain Loads/ Jobs

The hydraulic system of your John Deere 4020 is essential for operating various attachments and implements. If your tractor’s hydraulic system is not working properly, it can affect the tractor’s performance and make it difficult to operate. Most problems on machines like the John Deere 4020 arise from areas with commonly used mechanisms, and the hydraulics are used quite a lot on this machine.

What You Can Do

  • Always check the hydraulic fluid level. If the fluid level is low, add more fluid to bring it to the recommended level. It is important to use the recommended type of fluid specified in the John Deere 4020 owner’s manual.
  • However if the hydraulic fluid level is fine, check the hydraulic pump for any damage or wear. A damaged or worn pump can cause the hydraulic system to not function properly. If the pump is damaged or worn, it will have to be replaced.
  • If the hydraulic pump is not the problem, check the hydraulic filter for any clogs or damage. A clogged filter can cause the hydraulic system to not function properly. If the filter is clogged, replace it with a new one.
  • If you are still having hydraulic system issues, it may be best to consult with a professional mechanic who has experience working on John Deere tractors.

4. It Does Not Come With As Many Attachments As You May Like

And that is a huge bummer if you’re looking to utilize the John Deere 4020’s power and strength to do a variety of jobs ranging from ranching to farming. With the John Deere 4020 you are quite limited and even with those [attachments] you can purchase you are still quite limited.

What You Can Do

  • The best thing to do in this case would be to look for a tractor that can house as many attachments as possible to cater for the variety of tasks you would want to do with it.
  • However most attachments can do a variety of tasks at the same time that is why it is important for you to properly familiarize yourself with the John Deere 4020’s owner’s manual before starting to use it.

More You Can Do For Your John Deere 4020

  • First and foremost make sure to always read the owner’s manual and follow the recommended maintenance schedule. This will ensure that your tractor is properly maintained and operating at its best.
  • Check the fluid levels regularly and top off as needed. This includes engine oil, transmission fluid, and hydraulic fluid.
  • Also check the tractor’s air filter and clean or replace it as needed. A dirty air filter can affect the tractor’s performance and fuel efficiency. Inspect the tractor’s tires regularly and ensure they are properly inflated. Underinflated tires can affect the tractor’s performance and cause unnecessary wear and tear on the tires.
  • Finally, store your John Deere 4020 in a dry, covered area when not in use. This will help prevent rust and other damage (and likely prevent most of the problems in this article.)

Conclusion

The John Deere 4020 is a very popular tractor model among farmers. But like any other farming tool, it is prone to problems. Remember to always consult with aprofessional mechanic if you are unsure about any repairs or maintenance tasks. From the problems above you can clearly see that the John Deere 4020 is not perfect and that’s alright because nothing man-made truly is. However with the right set of knowledge and tools you can be sure to solve these most taxing issues in a matter of minutes.