We're using a Milwaukee M12 grease gun at work and I thought the tip had gone bad, it was blowing as much grease past the fitting as into it. I put a new tip on from Advance Auto and got just marginal improvement. The gun will pump grease into the fitting if there's no resistance but once the joint approaches full it starts blowing out again at the zerk fitting. This is happening with every fitting I try. For kicks I put our old manual grease gun on the joints that were blowing past and am able to pump more grease in without any trouble. I like to pump grease into a joint or bearing until I see a little coming out of it but I'm not able to do this with the M12 without wasting half the grease and making a mess. Any ideas on what the issue is?
I'm considering one of the lock on tips to try, any thoughts on that?
I'm considering one of the lock on tips to try, any thoughts on that?