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Old 10-25-2012, 10:01 PM
swanny swanny is offline
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Join Date: Jan 2009
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Posts: 632
Originally Posted by bobcat_ron View Post
The pump vibrates because there is an imbalance on the mulcher head, that transmits through the oil pressure. My brother's 48" disc mower would vibrate everything on the 320CL at full speed with no load, and that disc was severely out of balance from either missing teeth or teeth that were only down to half a tooth.
You might also want to think about getting a case drain line with a small 10lb check valve inline drilled and threaded into the motor to take any excess back pressure away, that might help with the vibrations as well.
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Ok, thanks...that makes sense. It doesn't vibrate that often...which makes me think it happens when a piece of wood gets stuck in the drum or something. I plumbed a case drain on it, but no check valve.
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