The newer Rayco models have an electric quik-stop clutch that stops the wheel in a few seconds after engaging the switch. The older models that are engaged with the lever that tightens the belt just spin until they stop or you lower the wheel into the ground. To check the bearing, turn off the machine and pull on the wheel to check the side to side movement. You can also check the bearing for play by dropping the wheel with the clutch disengaged and hydraulicly move the machine back and forth and see if there is any movement in the bearings. On a ten year old machine some maintainence items beside the bearings to check would be the drive belt. I would also check the drive pullies as they get worn down the edges get very sharp and can start to cut into the belts. Fresh hydraulic fluid and filter a good idea also. You should be able to order a parts and repair manual direct from Rayco for your machine. Good luck with your equipment.