Im having trouble out of the box on a F.Tech kts,cant figure switch out.First it was screwed on so tight i hadda use pliers to unscrew it,and got it out now and its just stuck in one piece like,there is like a 2mm gap in switch were it looks like it should be able to slide over,but it wont budge,no movement at all,is it just really jammed in there?what should I do to get this switch moving?any helps much appreciated,I dont wanna break it....