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Bobcat T190 centering device issues

Discussion in 'Skid Steers' started by sjs2011, Apr 14, 2018.

  1. sjs2011

    sjs2011 Member

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    Hello all, new to the site and bobcat repairs. I have a T190 that has starting issues (from not centering) and major creeping. Pulled the cab up and this is the mess I'm dealing with... its even got some wood in there.. FML any advice?
     

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  2. crewchief888

    crewchief888 Senior Member

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    the aluminum arm is probably worn out, somebody jammed a stick in there to keep the linkage pivot bolt from catching on the top of the hydrostat.

    looks like a pintle shaft seal is leaking as well..
    get yourself a pair of levers, bushings, cams, new bolts a seat of pintle shaft seals and orings, and replace everything while you have the centering plate off.

    wille has a nice thread on "repairing a creeping bobcat"


    :eek:
     
  3. sjs2011

    sjs2011 Member

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    Thanks crewcheif, I ripped it apart yesterday and everything you said is correct. The arm was completely loose and barely catching the shaft. Now on to finding a parts manual.

    I found willies thread and it helped a bunch.

    I appreciate your response, this is all very new to me!
     
  4. crewchief888

    crewchief888 Senior Member

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    if you go to bobcat.com find the OPC (online parts catalog) you can look up the part numbers for everything you need. there is no online pricing, nor can you order parts direct from bobcat. a visit to a local dealer is in order.
    one word of warning, pay strict attention to serial number breaks within your model and SN. there have been a couple different variations of lever/cams/bushings


    :eek:
     
  5. sjs2011

    sjs2011 Member

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    Perfect, thanks again!
     
  6. sjs2011

    sjs2011 Member

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    Can the Pintle shaft seal be replaced in the unit? Do you know of any write ups on the process of how to do it?
     
  7. crewchief888

    crewchief888 Senior Member

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    once you have the centering plate, and levers off you'll see 4 bolts around each pintle shaft, removed the bolts and the centering plate mounts, and pull the smaller plate off the top of the pump. seals are set in a counterbore in the plate. the oring (actually a square cut ring) sists in a recess around the outside of the bearing. dont panic if the bearing pushes up a little when you remove the plate, install the new seal and quad ring, and push the bearing back down with the plate.


    :eek:
     
  8. willie59

    willie59 Super Moderator

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    And be sure you clean the area around the pintle shaft thoroughly before you remove the four bolts, the centering plate mount and the pintle shaft seal plate.
     
  9. sjs2011

    sjs2011 Member

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    Perfect, thanks a bunch guys I really appreciate your time.
     
  10. sjs2011

    sjs2011 Member

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    So I finally got around to replacing all the seals and lever parts. Creep is completely gone and no leaks! Win. But now I have drive whine. No lift whine. Everything was cleaned extensively before changing out so I’m lost as to why. Any recommendations? It had zero whine prior.
     
  11. crewchief888

    crewchief888 Senior Member

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    Does the whine go away when the brake is off?

    A slight whining might be associated with a minor creep.
    Does it go away if you ease fwd or regular on either side?

    :eek:
     
  12. sjs2011

    sjs2011 Member

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    No there’s actually no whine until you move the controls to drive. Almost like the breaks engaged really. But it’s reading off. No codes
     
  13. crewchief888

    crewchief888 Senior Member

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    if the brake isnt fully releasing, or "hanging up" you may have (literally) a seat of the pants feel. typically the brake will "shudder" when it's not fully released. the brake spool and coil are in a small valve block (usually) located underneath where the 4 drive hoses are connected to the hydrostat.


    :eek:
     
  14. sjs2011

    sjs2011 Member

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    Okay then it’s def not that. No real difference besides severe whine. No power loss no shutter. Any other ideas?
     
  15. crewchief888

    crewchief888 Senior Member

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    maybe as f'd up as the steering was to start with, you never noticed the noise...?

    :eek:
     
  16. sjs2011

    sjs2011 Member

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    Prior it was only on startup that you’d have to screw with it while engaged till you found neutral then there was zero whine while operating. This is now at any movement in the drive controls and at all rpms. I just pulled the case drain filters and they look good.
     
  17. DIYDAVE

    DIYDAVE Senior Member

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    If it whines, First thing I generally try is to see if there are any leaks on the suction side...