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Message: <blockquote data-quote="SkidTracks" data-source="post: 142735" data-attributes="member: 5570">Wondering if anyone has seen boom float problems with John Deere skid-steer or compact track load?When I first got 335-P, boom float worked without problems.   After about 50-hours, boom float started having problems.While stopped, the boom would float.   But as soon as 335-P was driven forward or backward, boom would stop floating, go all way down, then release back to float position, and repeat cycle (boom all way down, release to float position).   Even with right hand off joystick controlling lift and tilt, boom float problem would occur.Found raising engine RPMs above idle would prevent boom float cycle from starting.  As more use of boom float / increasing engine hours; it took higher and higher engine RPMs to prevent the boom float cycle. Continuing to increase engine RPMs to prevent float cycle got to point of dangerous.   With high engine RPMs (over 1,700) came hydraulic power to violently and rapidly shove boom down.  Resulting in operator being thrown up/down in cab, only restrained by lap & shoulder safety belt.Anyone experienced similar boom float problem, and knows what was replaced to fix the problem?</blockquote>