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Cat 205LC Slew Brake

Discussion in 'Excavators' started by s12wrc, May 12, 2018.

  1. s12wrc

    s12wrc New Member

    May 12, 2018
    I’m currently in the process of buying an excavator for farm use and came across a nice looking Cat 205LC. I went to see it yesterday and while driving it I noticed that the slew brake wasn’t working at all to stop the machine from turning in either direction. It was parked on a slope and made no effort to keep the machine in one position. I also tried applying the foot brake, but that didn’t work either.

    I’m wondering is this a normal issue in excavators and if so, is it an expensive repair? Thanks.
  2. ACBJohn

    ACBJohn Member

    Nov 21, 2016
    I have a 205LC also, that when I purchased it, the slew brake worked fine. Now it doesn't work at all. I removed the cylinder and the pilot valve is supplying pressure but the mechanism in the drum will not apply the brake. I've tried penetrating oil and heat and I cannot pull the drum. I don't want to risk breaking the drum. There is a cap over the splined shaft, that if I ever get it apart, will get an o-ring groove machined on the under side to prevent water from rusting the spline ever again. I think my issue is in the cam that actuates (separates) the brake shoes.