• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Recent content by Hffhvg

  1. Hffhvg

    Lazy track, pump problems.

    Hello masters! I have an issue with my Takeuchi TB 1140 not tracking straight. The right side is sloppy, also it has lower power when going uphill. I’ve read on this forum of a simple test that when traveling and activating the digging function like curling a bucket and if the machine starts...
  2. Hffhvg

    TB 1140 Slew Problems

    PROBLEM FIXED! (At least I hope) I will just put this update here if any poor soul has similar issues. With the slew drifting in my case the problem was in the hydraulic motor. First I checked al the valves and poppets on the brake valve. I also checked the pressure and how it drips so I was...
  3. Hffhvg

    Genuine VS Chinese parts

    Yeah that typo bothers me also…
  4. Hffhvg

    Genuine VS Chinese parts

    Well I am aware of that and my opinion on Chinese products is the same as most people. Like I said if there is danger of damaging any other parts then I’m immediately stepping back if I see a post saying something like that. But still over 150$/€ for just one piston seems absurd to me. Any...
  5. Hffhvg

    Genuine VS Chinese parts

    So long story short. I need to replace my rotary group in my slew/swing motor on an excavator. Buying genuine parts from official dealers would cost me over 2500$/€ (that includes valve plate, cylinder block-rotor and nine pistons). If I order them from China it would cost me 250$/€, shipping...
  6. Hffhvg

    TB 1140 Slew Problems

    So I got the parts today. It seems that previous owner was changing the bearings and put in a shorter needle bearing to the brake valve. The original part from Hitachi seems 8 to 10 mm longer than the one that was installed up to now. Could that make the shaft with the cylinder block-rotor be...
  7. Hffhvg

    TB 1140 Slew Problems

    Here is also a video of how the slew behaved when the new valve plate was installed. Ignore the comments of slew park brake, the video is a month old and the park brake works fine. Uffex was right again. The oil wasn’t at the right temperature when I was testing it.
  8. Hffhvg

    TB 1140 Slew Problems

    There is wear on the faces of piston shoes that could probably cause some case drain but I am not sure about that. They glide smoothly on the swash plate and when I disassembled the motor it felt like they stick to the swash plate like a vacuum. The swash plate looks like it has scratches but...
  9. Hffhvg

    TB 1140 Slew Problems

    Hello masters! So a little update on this slew problem. There is no more slew park brake issue, it works well now. After changing the valve plate there was still some drift on the slope in the slew function after releasing the command (the park brake now applies after about 5 seconds until...
  10. Hffhvg

    TB 1140 Slew Problems

    I just changed the oil 5 days ago when I put the hydraulic motor back together. I put in VG46, which should be suitable for our climate according to the operators manual. I don’t know the exact temperature, but the gauge is in the green area when I am doing the testing.
  11. Hffhvg

    TB 1140 Slew Problems

    Hello. Because it takes for up to 20 seconds for slew park brake to engage. I do believe that 5 seconds is about a standard value?
  12. Hffhvg

    TB 1140 Slew Problems

    Hello! So am I able to adjust the slew park brake engage time by any of these?
  13. Hffhvg

    TB 1140 Slew Problems

    So I found the culprit. One of the connectors at the bottom of the control block (I don’t know what section-command) was disconnected and “plugged” on itself. My guess is the previous owners did this because slew didn’t stop on its own, so they wouldn’t damage the ew park brake system if upper...
  14. Hffhvg

    TB 1140 Slew Problems

    So my slew park brake release solenoid is constantly being energized and the park brake never applies when an excavator is running. Anyone have an idea where the pressure switches would be located?
  15. Hffhvg

    TB 1140 Slew Problems

    This was the main cause of slew sometimes not stopping and starting to drift in my case for anyone wondering. If I analyze it correctly the bottom part of valve plate in the picture was letting the oil to escape.
See more
Top