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Cat 277 main case drain filter???

Discussion in 'Compact Track/Multi Terrain Loaders' started by AdamsExcavating, Dec 8, 2014.

  1. AdamsExcavating

    AdamsExcavating Well-Known Member

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    Just had a drive motor Repaired on our '01 277 mtl and was told to change out the main case drain filter (and hydraulic oil) due to contamination from the faulty hydraulic drive motor. This is said to be different from the hydraulic spin on cartridge filter. does anyone know what is being mentioned and where I can find it? Thanks.
     
  2. Nige

    Nige Senior Member

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    Serial Number prefix..? I looked at a couple at random but can't see a case drain filter anywhere. Maybe looking at the wrong one.
     
  3. Mobiltech

    Mobiltech Senior Member

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    I've never seen a case drain filter on one either just the main spin on.
     
  4. AdamsExcavating

    AdamsExcavating Well-Known Member

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  5. caterpillarmech

    caterpillarmech Senior Member

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    There is a screen inside the tank. I would drain the tank, pressure wash the tank, and replace the screen. This is till not a 100% clean out. You will still have oil in your lines and cylinders.
     
  6. AdamsExcavating

    AdamsExcavating Well-Known Member

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    But no actual "filter"?
     
  7. Nige

    Nige Senior Member

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    Looking at the Parts Manual and the Hydraulic Schematic that was all I could see as well. Having double-checked for your particular Serial Number I can now confirm that.

    As Mobiltech says you're going to have to drain and pressure wash the tank and clean the screen (#7 in the illustration below) while you're at it, then try to get as much oil as possible out of the cylinder and travel motor circuits. You'll need plenty of buckets and cleaning materials, this could get messy in a real hurry........

    277 Hyd Tank.jpg
     
  8. AdamsExcavating

    AdamsExcavating Well-Known Member

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    Thank you all very much for your help!