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D3K2 Oil Pressure

Discussion in 'Dozers' started by JJM1, Oct 2, 2022.

  1. JJM1

    JJM1 Member

    Joined:
    Oct 31, 2016
    Messages:
    22
    Location:
    Distant, PA
    I have a 2012 (new to me) D3K2 XL Dozer with 1,900 hours that has an oil pressure reading of 74psi at startup and 72psi after allowing it to warm up for 5 minutes. Didn't expect it to be quite this high and was hoping someone could comment on whether I may have an issue. I recently changed all of the fluids and filters in the machine.
     
  2. Nige

    Nige Senior Member

    Joined:
    Jun 22, 2011
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    22,220
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    G..G..G..Granville.........!! Fetch your cloth.
    OK, so according to the system we have 8 different flavours of D3K2. :confused::confused:
    How about a Serial Number to narrow the field down a bit.?
     
  3. JJM1

    JJM1 Member

    Joined:
    Oct 31, 2016
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    Location:
    Distant, PA
    Hi Nige, You've responded to me in the past so I appreciate you following up.
    The number on the machine is CAT0D3K2AKFF00186.
    I am curious though that the machines are that different that even oil pressure specs might vary between them.
    Thanks, John
     
  4. Nige

    Nige Senior Member

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    22,220
    Location:
    G..G..G..Granville.........!! Fetch your cloth.
    It's really nothing to do with that, it's more the way the search function works in the online system. Without a S/N it's a really clunky process and I'm lazy ........ :rolleyes:

    IMO you need to allow much more time to warm up. 70+psi would not be unusual with cold oil. Try to see what the difference is with all machine systems at normal operating temperature, coolant at 85+ DegC for example. You will likely see a much lower oil pressure than the 72psi you measured after only a 5-minute warm up.

    The Nominal Oil Pressure Spec for that model engine is 70psi @ Low Idle with a minimum of 50 DegC Coolant Temp.

    EDIT: And the absolute minimum allowable is 40psi with all systems at NOT and the engine turning @ 2200 RPM.
     
    Last edited: Oct 2, 2022
    Mcrafty1 and DB2 like this.
  5. JJM1

    JJM1 Member

    Joined:
    Oct 31, 2016
    Messages:
    22
    Location:
    Distant, PA
    Thanks for the explanation on the S/N.

    Thanks also for the oil pressure spec. I feel much better about it and I think you're right. It's sat for a while in my barn and the temp has been getting into the high 40's F in the evening. I will check it after I've run it a bit. Thanks again!