Has anyone had problems with there manual oil pump that comes with the 770 mill? When I first bought my machine the handle on the pump would stay out when pulled and push the oil through the lines like it is supposed to, but now it won't stay out at all, it feels like it isn't pulling oil up into the piston chamber. If I pull on it in small short intervals it will pull some oil up. I guess the o-rings are bad, or piston. It must be sucking air somewhere. I'm thinking of taking it apart before I buy another one. I don't really want to buy the same one from tormach and have the same issue. Does anyone know of another manufacturer of this type of oil pump?
Thanks for any advice,
Joe