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Thread: chuck closing problem

  1. #1
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    Default chuck closing problem

    I have a Victor Tns1A with Fanuc OT control and the chuck will not close either by switch or MDI. It will open if I manually activate the solenoid but then the machine doesn't recognise it's position IE the spindle will still rotate.I have replaced the solenoid valve The foot switch and the relays and checked the continuity of the wiring from solenoid to the relay board.Any pointers in any directions would be greatly accepted and possibly let me keep what little hair I have left Oh if I reverse the wires in the solenoid the chuck will close but not open
    Last edited by PaulD; 06-30-17 at 08:33 AM. Reason: Typo

  2. #2
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    Default Re: chuck closing problem

    Problem solved; It was a burned out track on the relay board. I hard wired the the connection and bingo.... one working chuck

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