Z axis counter balance noise
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  1. #1
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    Default Z axis counter balance noise

    hi,

    I got YCM 106A milling machine. recently i noticed strange sound which i believe comes from Z axis counter balance. I checked it and i found that there is big looseness between weight hole and shaft. This annoying sound only comes when Z axis makes rapid moves for example drilling with chip breaking. Does anybody else have same problem and could help me to solve this problem. How can i fix it?

  2. #2
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    Not sure what that machine has for a counter weight, but on chain hung ones, worn chains and sprockets can cause odd noises and even jerky motion. Particularly if one chain is adjusted poorly or worn/stretched more than the other resulting in the weight hanging crooked.

  3. #3
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    Worth taking a look. Just think about what would happen if the chains broke........

  4. #4
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    I've had to fish a counterweight up from the bottom of a column twice due to broken chains. One of the least enjoyable jobs I've had to do.

  5. #5
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    I'd also check and make sure the rice and soy sauce tanks aren't empty...all kinds of funky stuff can happen without it. But I'd get a look at the support system first.


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