It started only in the final stage after wash. I inspected the unit for integraty seemed to be intact. After placing on side and lubricating belt pully area it seemed to sovle problem for a week or two. Now even with no load the drumb spins vioalantly like a top banging all sides. I thought if the spring were week I could test it by holding on with top down and place in spin cycle. The action is so ruff I can not even hold it steady with two hands. new spring will not cure this. Is there a micoswitch for equaling out spin imbalance or could it be something else? Please advise.

None. No plasctic scrappings or powder. I seem to be able to use the unit but onlt with small loads. Even at that it "ticks" the sides of the box. All else seems normal.