Problem with tool change vmc-1020
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  1. #1
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    Default Problem with tool change vmc-1020

    Hi,

    we have a Hartford vmc-1020, which I have understood, is some kind of Breidgeport clone. That's why I posted this in here.
    Problem is a weak cylinder of a tool clamp/unclamp, i.e cylinder that presses the drawbar don't press hard enough. The push rod stops when it hits the drawbar and the drawbar wot'n move a bit.
    All o-rings (except 2 lowest) are new and there are no leaks in cylinder (tested by sinking under water while air pressure on).
    Air pressure shouln't be a problem, cylinder is tested by pressure over 7 bar.
    Working move is not instant after pressing the change button, but there is like one second delay before cylinder presses, and I'm pretty sure that's not right way to work.
    If I put 2 lowest o-rings new (mutually where air blow comes), moving is jumpy (2 steps) like those o-rings presses too much
    Any ideas?
    By the way, the air blow won't work either. It's relay won't get even control signal. Could those problems be interrelate?

    Help needed

  2. #2
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    Default

    Thanks mates, but none of your guesses weren't right.
    Solution of my problem would had been obvious, if I only would know how that cylinder works.
    None of you didn't ask if there is oil at "Spindle Lubricator Cup", there weren't.

    That tool changing works just fine now , and I'm pretty sure I'll get that air blow repaired too.

    Fiscoman

  3. #3
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    Do you still have access to this machine? I need all parameters to conduct a tool change and set G54. Your help is appreciated!

  4. #4
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    If you would have looked at the OPs profile, you would have seen that he hasn't had any activity in 7 years. And then, it was just the 2 posts here.
    JR

  5. #5
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    Oct 2018
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    I am on the hunt for some parameters and I am taking every avenue I must to hopefully catch somebodys attention to help me get the parameters I need.


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