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IndustryArena Forum > MetalWorking Machines > Okuma > MC-4VA Servo Timing Board TB2 OSP 5000
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  1. #1
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    Join Date
    Oct 2018
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    1

    MC-4VA Servo Timing Board TB2 OSP 5000

    We are having a rumbling noise in all 3 axis of our mill. There is a mild to moderate rumbling vibration that can be felt in the machine while it is sitting still. Like the axis servo motors are fighting to hold position. The noise is worse while any of them are moving and it is affecting part finishes and sizes, obviously. There are times when the noise goes away and the machine runs as it should, but those times are getting less and less.

    The control is a OSP5000. We have tried replacing the 2 different SVP boards with no difference. The next board we want to try is the Timing Board 2. Ours is labeled TB2 (E4809-770-011) but I am finding a lot of -A and -B versions. Does anyone know if these are interchangeable?

    Thanks for any help.

  2. #2
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    Join Date
    Aug 2006
    Posts
    16

    Re: MC-4VA Servo Timing Board TB2 OSP 5000

    Hello mapemera

    Have you solved the rumbling problem with replacing TB2?
    Thanks.

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