Hi, we have a Hunter 49 and the electric lewmar windlass has just started to slip when coming up or going down. When retrieving anchor, the winch turns approx. 3/4 of a revolution and continues to make noise, however, no longer rotates. I can "assist" the winch with the handle every turn and it comes up. Same thing for dropping anchor. The windlass itself tripped the breaker prior to this occurring. The windlass was working very hard to retrieve well set anchor. Since, however, it is now slipping. Any suggestions as we don't have the original manual. I have tried tightening on top of the winch where the handle goes in and I am only able to get about a half inch turn that does not seem to make any difference.