every place that you have moving metal to metal on the treadle base needs oil. That includes al connecting places at the rocker plate, the hub/axle of the power wheel and if the pittman arm is steel, at both ends of that.it should do several revolutions of the wheel with very little input from some toes. Have you taken the belt off and tried it.\? Too tight or too loose of a belt can cause this problem, also. The head itself should do three revolutions from a quick spin of the handwheel when not connected to the treadle or fabric. If it won't do that . again, oil everything that moves Lok for clumps of fuzz, too or hair or thread wrapped around axles.