Case TR320 Questions

Discussion in 'Heavy Equipment & Pavement' started by JNB Construction, Jan 20, 2014.

  1. YellowDogSVC

    YellowDogSVC LawnSite Gold Member
    from TX
    Posts: 3,756

    Maybe the oil gets thin when it gets warm and leaks more. If it's not a bad leak, can a heavier gear oil or Lucas be mixed in to thicken it up until you can get a proper repair or is it part of the motor drives and run off the machines hydraulic oil?
     
  2. JNB Construction

    JNB Construction LawnSite Senior Member
    Posts: 282

    Good idea. I may drain it and try heavier gear oil just to see if it helps. If I we get a break in the weather I need to get it to work. I'm new to these ctl's as far as how everything functions, but it's gear oil for sure, not hydraulic.
     
  3. ksss

    ksss LawnSite Fanatic
    Posts: 7,128

    Don't run the drives dry. Get in to be looked over.
     
  4. dozerman21

    dozerman21 LawnSite Bronze Member
    Posts: 1,170

    It shouldn't be leaking at all, it must be a seal going bad and shrinking and expanding like Yellow said. I would drain it and fill back up and watch it closely. Those reservoirs only hold about 1 Qt. each, so make sure it's not leaking out too much or you'll ruin your final drives. I use Napa Premium 80-90W in mine, and they recommend you change the fluid at every oil change.
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  5. JNB Construction

    JNB Construction LawnSite Senior Member
    Posts: 282

    You bet I will. I heard a horror story concerning the subject from a guy that was a salesman for NH.

    From the parts breakdown I found online, it looks like there's a floating type seal between the motor and final drive. I'd say that looks like the problem.

    Thanks dozerman. I'll be watching it closely.
     
  6. ksss

    ksss LawnSite Fanatic
    Posts: 7,128

    I spoke with the engineer that did the testing on the drives that are in the Alpha series. He stated that the Bonfiglioli drives that they put in the Alpha's lasted longer without oil than the Rexroth drives did with oil. Certainly it was somewhat in jest, but the drives in those machines are very solid. I very much doubt its any thing serious.
     
  7. JNB Construction

    JNB Construction LawnSite Senior Member
    Posts: 282

    I don't think so either. You know how it is though when you want to get to work. I'll give ASCO a call tomorrow and check it out.
     
  8. JNB Construction

    JNB Construction LawnSite Senior Member
    Posts: 282

    I was interested in using Lucas as an additive, but since I've heard mixed reviews in the past I decided to research it a bit. I came up with a test on Bob is the oil guy's site. http://web.archive.org/web/20100926133335/http://www.bobistheoilguy.com/images/lucas/lucas.htm

    IMHO, I don't think I'll be using Lucas in anything.
     
  9. JNB Construction

    JNB Construction LawnSite Senior Member
    Posts: 282

    I got a call from the service manager today. Says they can't get the seal for the final drive and that I need a new one?!! I call BS. I need to figure out how to get in touch with the regional rep. Having to purchase an entire final drive for a machine with 760 hrs on it because of a leak is ridiculous.
     
  10. YellowDogSVC

    YellowDogSVC LawnSite Gold Member
    from TX
    Posts: 3,756


    that is pretty lame IF it is a serviceable drive. I hope you reach the regional guy and get a better answer.
     

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