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Cat 236d engine problems

Discussion in 'Skid Steers' started by paxfam1, Aug 5, 2022.

  1. paxfam1

    paxfam1 Member

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    Engine ran away, and I need to get it off site. How do I get the wheels to roll? It's cat 236d
     
  2. Vetech63

    Vetech63 Senior Member

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    Post your machine serial number. I don't know if those are equipped with tow valves or not.
     
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  3. paxfam1

    paxfam1 Member

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    Serial number BGZ01035
     
  4. Cmark

    Cmark Senior Member

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    No official documented way. Pick it up or drag it.
     
  5. paxfam1

    paxfam1 Member

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    I was afraid of that answer.
     
  6. paxfam1

    paxfam1 Member

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    Anyone have any idea how much pressure is needed to release the parking brake? Could I use air pressure, or could I plumb auxiliary remotes from another machine? Just weighing out my options. This is not going to be an easy recovery if I have to drag it out.
     
  7. Cmark

    Cmark Senior Member

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    You need about 400psi to release the brakes. Not only that, you would need to open the hydraulic drive loops.
     
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  8. heymccall

    heymccall Senior Member

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    You could always cut the chains.
    But, then it can roll away.
    Screenshot_20220806-001154_Chrome.jpg
     
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  9. ThreeCW

    ThreeCW Well-Known Member

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    Here is a search of the word "towing" in the titles. Not many solutions in this search, but it certainly highlights what damage you can cause when towing a skid steer.
    https://www.heavyequipmentforums.com/search/152383364/?q=towing&o=date&c[title_only]=1&c[node]=63


    Brainstorming a bit here ... as heymccall points out, removing the drive chains should allow you to roll the machine. As per the diagram above, by loosening the nuts (#5), does that not allow you to slide the axle assembly (#6), to create enough slack in the drive chains to slip the chains off of the drive motor sprockets? Or is there a connector link in the chains ... which may or may not be accessible?? Hence, if not accessible, you would have to cut the chains ??

    Perhaps a call to your local CAT service department is in order for advice on towing?
     
  10. paxfam1

    paxfam1 Member

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    I was able to get it moved into my shop, I now need to do some testing. Can some one please post what adapter is needed for commpression testing via glow plug hole?
     
  11. thepumpguysc

    thepumpguysc Senior Member

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    Check the thread pitch of your glow plug..
    Harbor Freight sells a glow plug compression kit.. I think they list the thread pitch on their web site.
     
  12. paxfam1

    paxfam1 Member

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    So I got the machine moved, I removed Charge pipes and exhaust. Suspect turbo failure due to the excessive turbine play. Decent amount of oil in the charge pipe. However it still won't start. It fires but it feels like it's got a dead cylinder and stalls out after the key is released. Preformed commpression test and I have good compression on all four cylinders. It will start and run on starting fluid. So it looks like I have a fuel delivery issue. The low side pump runs and you can see fuel circulation in the filter. Any advice on how to isolate components on the high pressure side?
     
  13. thepumpguysc

    thepumpguysc Senior Member

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    Gotta know what fuel system u got.
    (Pump type)
     
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  14. paxfam1

    paxfam1 Member

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    It has a denso fuel system
     
  15. thepumpguysc

    thepumpguysc Senior Member

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    They make 4 different types of fuel systems..
    Get a pic.
     
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  16. ahart

    ahart Well-Known Member

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    From the parts book. E3D8DCB4-9A2A-4554-AEA8-E8A31EE21BC7.png
     
  17. paxfam1

    paxfam1 Member

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    Not sure what part of it you need to see?
     

    Attached Files:

  18. thepumpguysc

    thepumpguysc Senior Member

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    I’ve never worked on a Denso hi pressure common rail pump, sorry.
     
  19. thepumpguysc

    thepumpguysc Senior Member

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    U could check for fuel going into the pump..?? Don’t know which line to check tho..
     
  20. paxfam1

    paxfam1 Member

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    So the engine ran for about 1 minute after the key was shut off, is there any way the injectors could continue to fire? Or am I dealing with a failed turbo and a fuel supply issue? Seems unlikely to have two issues at the same time?