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  1. #1
    New Member
    Join Date
    Mar 2013
    Posts
    3
    Location
    batesville ms
    Tractor
    case 450 dozer

    Default Case 450 want move after start

    I have a case 450 dozer that will not move for 20 or maybe 30 minutes after cranking. Has 25 #'s torque converter pressure and between 250 and 300 #'s pressure at transmission . After running a while it gradually moves and gets up to a acceptable pace . Does as well as it has since i have owned it ? Any suggestions on what could be causing this cold no go ?

  2. #2
    Veteran Member
    Join Date
    Jan 2009
    Posts
    2,116
    Location
    Carroll, Ohio
    Tractor
    Massey 180 Diesel

    Default Re: Case 450 want move after start

    Improper oil in the transmission? Sounds like too heavy of a weight of oil, but thins enough to drive when warmed up a bit. Should be Case TCH, or equivalent. Have you changed the trans oil since you've had it..??

  3. #3
    New Member
    Join Date
    Mar 2013
    Posts
    3
    Location
    batesville ms
    Tractor
    case 450 dozer

    Default Re: Case 450 want move after start

    I did have a line break and put regular tractor Hydraulic oil in it .

  4. #4
    Gold Member
    Join Date
    Mar 2012
    Posts
    367
    Location
    NSW Australia
    Tractor
    Tractors16-600hp Farm & Earthmoving Equip, Trucks etc.

    Default Re: Case 450 want move after start

    This problem usually indicates that the transmission pump is sucking air. If all the suction hoses are in good order & clamps are tight ( no oil leaks while parked?) the problem could be the pump itself ( though unlikely it's the pump -with a transmission pressure of c.290psi indicates the suction screen is not blocked & the charge pump is operating fine) -The trans can use any good trans/converter/hyd oil
    Last edited by MBTRAC; 03-05-2013 at 05:13 AM.

  5. #5
    New Member
    Join Date
    Mar 2013
    Posts
    3
    Location
    batesville ms
    Tractor
    case 450 dozer

    Default Re: Case 450 want move after start

    Ok anyone know the best way to drain all of the mixed ....bad fluid out ?

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