R4330 Thickness planer problems

[rduncan]

due to a small amount of vibration my depth adjustment handwheel creeps forward allowing the cutter head to lower itself. How do I tighten this up, so it wont creep. The owners manual contains no info on this problem.
any help would be great.

[seeyabarney]

I am also finding that when the planer is under a little stress, the height adjustment handle creeps up. I took it to an authorized repair center and they said everything is fine. I am thinking of selling my Ridgid and going with a Dewalt mainly because the Ridgid seems to lack power, plus the creeping height adjustment.