I bought a Shop Fox mobile base for my Shop Fox Moulder. After an hour or so of assembly, it's together and at least the table part of the moulder is on the base. when I tried to push the base around the floor, the swivel wheels in the front would not swivel and they barely turned.

Add some penetrating oil to get things rolling.

Still the same problem. The axle of the swivel casters has about 1/4" of clearance between the supports. Anyway nothing is binding if the jacks are let down. The casters swivel without a lot of effort.

The floor of the garage is clean, so that should not be a problem.

Anyway, has anyone else experienced this problem? Is this an assembly problem? Quality control problem?

Help!!!!