zwelch's latest activity

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    zwelch replied to the thread Vicsec VC13 mini-excavator.
    I continue to have leaking issues at the pump output, so this weekend I took a deep dive into the world of o-rings. If you find yourself...
  • Z
    zwelch replied to the thread Vicsec VC13 mini-excavator.
    I have ordered some 90A FKM o-rings that I hope will be less prone to extrusion failure. In the meantime, I realized that there might...
  • Z
    zwelch replied to the thread Vicsec VC13 mini-excavator.
    I just checked discount hydraulic hose, and it looks like this fitting is a 5069L? Viewing the various sizes available made me realize...
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    zwelch replied to the thread Vicsec VC13 mini-excavator.
    I just went out and pulled the fitting to measure the seal dimensions. This time, I brought my camera and took a photo of the failed...
    • IMG_3600.jpeg
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    zwelch replied to the thread Vicsec VC13 mini-excavator.
    After more research, I believe that the pump outlet port fitting is DIN 3852-H (adjustable o-ring style); it has a locking nut, backup...
  • Z
    zwelch replied to the thread Vicsec VC13 mini-excavator.
    Unfortunately, I did not have my camera with me, and I was in a hurry to fix the machine to get some work done. So no pics this time...
  • Z
    zwelch replied to the thread Vicsec VC13 mini-excavator.
    I had to tear down the machine to replace the o-ring again. Afterward, I took it out again for a few hours, and it started leaking...
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