I'll be calling JET tomorrow morning, but thought I would ask the collective minds here and see what you guys think.
I have a JET 1442 with the Reeves speed control... this past month I discovered that the keeper "E" ring on the end of the shaft closest to the hand wheel has slipped or somehow milled out the slot it was supposed to fit into and allowed a little slop in the stationary pulley for the Reeves unit. Also discovered that the other pulley had a crack in it where it went over the keyway. I called JET and since I'm still under warranty, they sent me a new shaft and new Reeves pulleys. After installing them and checking that I had them right - had the help of a friend who has the same lathe - we put it all back together and it runs fine... except I get a little ticking noise from one of the bearings (which are all new - installed on the new shaft) at lowest speed... if I kick the speed up a notch or two the tick goes away and everything runs quietly.
But I also noticed that at about mid range of speed, the work piece will lug and sounds like a belt slipping. I opened the cover on the pulley housing and sure enough, if you put a load against the work piece, the belt will bow up and becomes slack... I lose power... at the top end of speed, the belt looks almost as if it's just flopping and about to come off the motor pulley which has closed almost all the way, but not quite.... and it looks as if the sides of the belt are being abraded slightly.... I'm thinking the motor pulleys should close almost completely and the belt runs on the points of the "V" and should retain tension....
Any have ideas on what may be happening??