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  1. T

    Bobcat E80 lost all hydraulic power

    I was working today, machine runs great, and then no power to anything. Nothing will move, not the arm, blade, or tracks. Machine still starts up and runs great. Trying to narrow down the search. Where should I start? serial is AETB12606
  2. T

    Bobcat e80 hydraulic thumb cylinder pressure

    You bet. Good luck
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    Bobcat e80 hydraulic thumb cylinder pressure

    Yes
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    Changing Track adjuster Seals on a Cat 939 .

    That’s awful. He had helped me before. It’s hard to get a picture of where it’s leaking. I haven’t torn it down yet. Just with my fingers gotten below the grease cert area and it’s leaking there, not on the end where wipers may have failed if I am seeing the diagram correctly. If I reach...
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    Changing Track adjuster Seals on a Cat 939 .

    Bob, mine appears to be leaking from the weld cracking. What’s the simplest way to fix this?
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    Bobcat e80 hydraulic thumb cylinder pressure

    Turn that knob 90 degrees clockwise, and you have two way flow. That is in the smaller hydraulic cover area next to the cab. Posting this in case someone else runs in to this in the future.
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    Bobcat e80 hydraulic thumb cylinder pressure

    It is a foot pedal.
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    Bobcat e80 hydraulic thumb cylinder pressure

    That would explain why it didn’t help any...thank you for ruling that out for me. Any ideas on what to look for?
  9. T

    Bobcat e80 hydraulic thumb cylinder pressure

    I assume there is a relief valve somewhere, but I can’t find it.
  10. T

    Bobcat e80 hydraulic thumb cylinder pressure

    I will tomorrow when I have some light. I kept eyeballing this, and tried some adjusting, but didn’t find it to make any difference in clamping force. That is mounted toward the base of the stick. It appears the auxiliary lines are plumbed to a hard line that is on the outside of the stick...
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    Bobcat e80 hydraulic thumb cylinder pressure

    I bought a new to me low hour Bobcat e80 to use around the house to stack some large rocks. The machine was set up with auxiliary hydraulics, but I had to buy an aftermarket thumb. I am lacking power in the thumb. The bucket overpowers it easily. Release pressure seems good, but it has now...
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    Help. 939C no power to ignition switch

    That is what it appears to be. Everything behind the dash is working as it should be. The harness on the firewall was the issue. All wiring and connectors look to be sound, but just tapping the dust from the harness loom made enough of a difference to get a better connection somewhere...
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    Help. 939C no power to ignition switch

    Rookie mistake, but I noticed I put this in the wrong forum. Fat fingered the iPad and meant to put it in the track loader section.
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    Help. 939C no power to ignition switch

    I have a 939C Hystat that is a great little machine with 2800 hours. I was running it today, shut it down to run the excavator, jumped back on the loader, and there is no power to the dash at all. I checked all of the fuses below the dash, checked batteries, made sure there was power to the...
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