how to bleed air from john deere tractor hydraulic system

John Deere tractors are known for their reliability and performance. These tractors use hydraulic systems to operate various attachments and perform different functions. It is essential to maintain the hydraulic system of a John Deere tractor to ensure its smooth operation. One of the most common issues faced by tractor owners is the accumulation of air in the hydraulic system. This air can cause erratic performance and damage to the system. In this article, we will discuss how to bleed air from a John Deere tractor hydraulic system.

Identifying the Problem

The first step in bleeding air from a tractor hydraulic system is identifying the problem. If your system has air in it, you might notice that the hydraulic functions are not working correctly. For example, your tractor's lift system might not be able to lift loads to full capacity. The hydraulic system's performance might be jumpy or jerky, causing a delay in the response. If the hydraulic system is not working correctly, it might be time to bleed air from the system.

Preparing for the Job

Before you start, make sure you have the necessary tools to complete the job. You will need a wrench, a basin or container, and hydraulic fluid. It is also crucial to refer to your tractor's user manual to check the specific instructions for bleeding air from the hydraulic system. Once you gather all the necessary tools and read your tractor's manual, you can proceed to the next step.

Bleeding the Hydraulic System

The first step in bleeding the hydraulic system is to turn off the tractor and let it cool off. Next, locate the hydraulic filter housing and look for the bleed screw. You might need to remove a protective cap to access it. Place the container or basin beneath the screw and loosen it using the wrench. Then, turn on the tractor and let the hydraulic fluid drain into the basin. Keep an eye on the fluid level and keep filling it until there is no trace of air.If you need to bleed air from other hydraulic components such as cylinders, hoses, or pump, refer to your tractor's manual. You might need to follow specific instructions to ensure that no air remains in the hydraulic system.

Checking the Hydraulic System

After you have bled all the air from the system, it's time to check if it is working correctly. Start your tractor and test the hydraulic functions such as the lift system or attachment. Slowly increase the load and observe the system's performance. If everything works smoothly, you have successfully bled the air from the hydraulic system.

Conclusion

Bleeding air from a John Deere tractor hydraulic system is a crucial maintenance task that ensures the system's proper operation. Following the user manual's instructions and using the proper tools can help you complete the task effectively. Remember to check the hydraulic system's performance after bleeding to ensure that everything works correctly. If you encounter any further issues, consult a professional mechanic to diagnose and fix the problem.