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John Deere 310SL Hydraulic issues

Big-Mike ยท 2026-01-16 12:43

Hello all, I have a John Deere 310SL Backhoe last 6 on S/N is 293485. The machine fires up, moves but nothing from loader, hoe or outriggers. We had to lift and chain up the bucket and thankfully the hoe was in transport. To me, if this machine had a hydraulic enable button that would be the first place to look but it doesn't. Has anyone had this problem and fixed it?

Replies3
  1. #1mg23612026-01-17 07:20

    Did this machine just quit while running? Has anyone checked the hydraulic pressure? With the engine running, press and hold the menu until in the service menu. Scroll to diagnostics, hydraulic, pressures. What does it read with the engine running? Remove the hydraulic filter and cut it open to inspect it's contents. Here is how to do that properly. Report back with your findings.

  2. #2HarleyHappy2026-01-17 09:09

    Pump coupling?

  3. #3mg23612026-01-17 10:57

    That is why I asked for a pressure reading. If it is zero, then the shaft within the transmission broke, most likely from a seized hydraulic pump (reason for the filter inspection). If it is not broke, there would be pressure of some kind. Unfortunately, I have seen this one too many times.