![]() ![]() Also apply a little oil to the rear of the dial where it runs near or against the front of the bearing. Then remove the two screw plugs in top of the carriage dovetail and squirt a few drops of oil into the holes while rotating the screw. To do this, first run the cross slide nut off of the end of the cross feed screw and move the slide another quarter inch or so to the rear. Before trying to determine or reduce the magnitude of the former, you should address the latter. The other is end float of the cross feed screw. One is backlash or clearance between the cross feed screw and the cross feed nut. To get back to backlash in the cross feed, there are two sources for it. ![]() Same locks will work on the 10" and all 12". And the one from the 6" milling attachment fits the compound slide. The gib lock for the 10" and 12" milling attachment fits the cross slide. On my 3996, I replaced one of the cross slide and one of the compound gib screws with a T-handle screw. Also lock the compound slide by tightening the middle gib adjusting screw. Tighten the square head bolt on the right side of the carriage just to the left of the threading gauge. The other thing that you should do when facing is to lock the carriage. ![]()
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