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Breaking ripper bolts and chauffeuring baby birds around

Discussion in 'Dozers' started by Oldcatpusher, Jul 7, 2019.

  1. Oldcatpusher

    Oldcatpusher Well-Known Member

    Joined:
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    Been a long week. Broke all the bolts on ripper cylinder for the 3rd time. Can't take much up pressure. They're grade 8. 1/2"x 3 1/4 Should I go with a grade 9 or does anyone have a better ideal. Ripper can't take much up pressure. At least the birds have got smarter and went for a safer home rather then building in the exhaust and getting shot out like an astronaut come Monday morning
     

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  2. mikebramel

    mikebramel Senior Member

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    Are you running with the piston bottomed against the head.... You will have the hydraulic force on the base of the piston AND external forces that way
     
  3. Oldcatpusher

    Oldcatpusher Well-Known Member

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    Yes I try to keep it up all the way to keep rippers from dragging. Aftermarket kenco rippers. 3rd cylinder they've gave me. I don't think they go up far enough. They go down plenty far though. Maybe I need to add an inch or two to the rod.
     
  4. mikebramel

    mikebramel Senior Member

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    You know what I'm saying... that will do it

    Looks like there is room on there for 5/8"
     
  5. Oldcatpusher

    Oldcatpusher Well-Known Member

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    That's what I was thinking. Bigger bolts. I like my equipment over built. We dont usually get easy regular jobs. It's either swamp or rocks
     
  6. DIYDAVE

    DIYDAVE Senior Member

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    Have you checked the cyl, to see if the rod is bent or draggin, somewhere?;)
     
  7. mikebramel

    mikebramel Senior Member

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    Yeah. Only other thing you need to check is the rod stud size. Need to calculate strength. No point I upgrading the head flange if you will then bust the rod