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Discussion Starter · #1 ·
A friend of mine has a 855 hydro that moves really slow and has a funny noise sounds like gears chattering. We found on another site that a nut backs off on the pump. If this is true how do we get to this an fix it? Do we have to split it? or what thanks folks
 

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Have you checked the fluid level ? Also check to see if the pulley has not stripped on the input shaft. What kind of tranny do you have ? Model and ser#?
 

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Does your 855 have a main drive pressure relief valve, if so it could be stuck open. I have a 4400 which is a little bit bigger but some of the systems might be similar.
 
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