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How do I troubleshoot a hydraulic issue on a John Deere 7920?

What unique troubleshooting techniques should I use to fix a hydraulic issue on a John Deere 7920?

Subject: John Deere - Sub Subject: 7920
Date: 5/11/2023 Status: SOLVED
6 answered / 3 voted, viewed icon 93 viewed.
Solved - The best Reply aiden2007 - Tuesday, May 16, 2023 137

When troubleshooting a hydraulic issue on a John Deere 7920, there are several steps you can follow to diagnose and potentially resolve the problem. Here's a general troubleshooting process:


Hydraulic issue on a John Deere 7920

Hydraulic issue on a John Deere 7920


  1. Identify the symptoms: Start by understanding the specific hydraulic issues you are experiencing. Is there a loss of power, slow or jerky movement, unusual noises, or leakage? Gathering this information will help narrow down the possible causes.
  2. Check fluid level: Ensure that the hydraulic fluid level is within the recommended range. Low fluid level can cause various hydraulic problems. If necessary, add fluid to bring it to the correct level.
  3. Inspect for leaks: Examine the hydraulic system for any visible signs of leakage. Check the hoses, fittings, seals, and cylinders. Leaks can lead to a loss of pressure and performance. If you find any leaks, repair or replace the affected components.
  4. Check hydraulic filters: Clogged or dirty hydraulic filters can restrict the flow of fluid, resulting in poor performance. Inspect the filters and clean or replace them as necessary.
  5. Test hydraulic pressure: Use a pressure gauge to measure the hydraulic pressure. Compare the readings to the manufacturer's specifications. Low pressure could indicate a problem with the pump, relief valve, or other components.
  6. Inspect hydraulic pump: Check the hydraulic pump for any damage or signs of wear. Ensure that it is functioning properly. If there are issues with the pump, it may need to be repaired or replaced.
  7. Check valves and control system: Inspect the control valves and other components in the hydraulic system. Look for any blockages, malfunctions, or damaged parts. Clean or replace faulty components.
  8. Consult the operator's manual: Review the John Deere 7920 operator's manual for specific troubleshooting guidance and hydraulic system diagrams. It may provide additional information or steps to diagnose and resolve issues.
  9. Seek professional help if needed: If you are unable to identify or resolve the hydraulic issue on your own, it's recommended to contact a John Deere service technician or an experienced hydraulic mechanic for assistance. They have the expertise and specialized tools to diagnose and repair complex hydraulic problems.


Remember to prioritize safety when working with hydraulic systems. Always follow proper procedures, wear appropriate protective gear, and exercise caution to prevent accidents or injuries.

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ANSWERS Write an Answer

❝How do I troubleshoot a hydraulic issue on a John Deere 7920?❞ answers. antony2022 asked first. Total 6 replies.

Teddy - Wednesday, May 31, 2023 125
The information was very helpful and I am grateful🙂 😄 🐾

.. Engrossing 😌🙂 😄
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daniel_1971 - Monday, June 5, 2023 122
have a nice day! 🌞 🏖 🐳🤓

Must visit Omaha, NE?

.. Victorious!👁
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Simon ME2017 - Wednesday, June 14, 2023 119
thanks for your helps 🙏🏻

Location: Pasadena, TX?

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calvin21MN - Saturday, September 30, 2023 97
Explanation was satisfying🏽

.. Well-written 🌲💙
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Parker Johnson - Tuesday, November 7, 2023 87
Easy to follow 😊 ✊😆

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.. I was impressed by the article 🥀✔
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