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How to quickly blow the new seals in track tensioner cat 311b

Discussion in 'Excavators' started by slwbid, Jun 21, 2016.

  1. slwbid

    slwbid Well-Known Member

    Joined:
    Apr 20, 2012
    Messages:
    94
    Location:
    Trenton, ga
    OK...so recently I bragged a little about how quickly I was able to get the 2nd of 2 cat 311b track adjusters out, replace the seals and re-install it.
    Well this past Saturday, I got humbled. I told a big brute of man who works for me sometimes to go tighten the tracks up good and tight. He did all right. As tight as he could possibly get them. He blew the new seals out of both track tensioners just by putting the strength of his leg sized biceps on the grease gun. I didn't know that could be done. But trust me. He did.
    I should be pretty darn good at removing, rebuilding and replacing the tensioners after this. Henceforth, I will personally tighten my own tracks. I'll just let this man pull up stumps and pile them in burn pile for me.... with his bare hands.

    Best wishes to all
    Stacy
     
  2. backhoe1

    backhoe1 Well-Known Member

    Joined:
    Aug 24, 2007
    Messages:
    93
    Location:
    South Dakota
    why would you want the tracks that tight?
     
  3. Scrub Puller

    Scrub Puller Senior Member

    Joined:
    Mar 29, 2009
    Messages:
    3,480
    Location:
    Gladstone Queensland Australia
    Yair . . .

    All track machines have a specified dimension of sag . . . often measured across carrier rollers with all the slack on top.

    Cheers.
     
  4. redneckracin

    redneckracin Senior Member

    Joined:
    May 20, 2010
    Messages:
    435
    Occupation:
    Civil Engineer
    Location:
    Pittsburgh
    If you have a good grease gun they can push out 10kpsi. I hate when someone humbles me like that but I'm usually the guy breaking things so its sort of self punishment. :D
     
  5. fast_st

    fast_st Senior Member

    Joined:
    Dec 1, 2010
    Messages:
    1,273
    Occupation:
    IT systems admin
    Location:
    Mass
    Its helpful to have an employee that can push start a D8 without assistance.