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    1995 Lull 644TT

    Update, I changed this valve [ called brake port block] and it fixed my problem
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    1995 Lull 644TT

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    1995 Lull 644TT

    Guys, I found a used valve by chance, put it on and have the same problem. Boy I thought I had it. I have a question for those that are familiar with these machines, Am I suppose to have pressure with the engine running and no functions activated. I ask because one section of the the dual pump...
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    1995 Lull 644TT

    Already tried Web, they don't have one
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    1995 Lull 644TT

    I'm sorry,I was wrong, this is the Accumulator charge valve. I need one,anyone know where I can get one. PN. P28728. Thanks in Advance
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    1995 Lull 644TT

    That is the pump unloader valve, I just took it all apart and all seems fine
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    1995 Lull 644TT

    This is where the hissing is coming from and I can feel it getting hot there
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    1995 Lull 644TT

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    1995 Lull 644TT

    1995 644TT-34
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    1995 Lull 644TT

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    surging hydraulics

    This is what my 644-TT is doing and I just replaced the 2300 dollar Accumulator with no change
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    1995 Lull 644TT

    Good Afternoon everyone, I bought a1995 Lull 644 last year to use on the farm and it has a hydraulic issue I cannot seem to figure it out, I know alot good mechanics are on here. My problem is one of my stages on the dual pump is constantly loading the pump up and if I use it for any period of...
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    Allis Chalmers HD16DP - Transmission issue

    I used to be on here everyone but have not in a long while because I couldn't remember my password. Had to re-register, so all is well now. THE HD16DP was a D7E counterpart but like most AC machines it was a little heavier, powerful, and faster than a Cat in the same timeframe. The HD16DP was...
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    Allis Chalmers HD16DP - Transmission issue

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