Smithy Midas 1220 XL - Manual (Page 33)

Push and pull on the cross slide. If there is movement, remove the two bolts that attach
the rear screwseat to the cross slide, remove the screwseat and screw the cross slide
toward you until the screw comes completely out of the brass nut (Figure 6.14).
Figure 6.14 Adjust the tightening screws on the two-piece crossfeed nut to
reduce the backlash between the screw and nut.
Remove the brass nut and put one or two strips of shim stock in the side of the hole. The
fit should be tight. Screw the cross slide back onto the carriage. Adjust the screws in the
brass nut to remove any play between the thread in the nut and screw. Reassemble the
screw seat onto the cross slide.
Longfeed
1.
Tighten the setscrew on the bottom of the right trestle so the bushing is tight (Figure
5.7).
2.
If there is still excess backlash, remove the cap nut, hand crank, and key.
3.
Remove the washer, outer dial, spring and inner-dial hub key.
4.
Install as many shim washer as possible between the bearing and dial. Then
reassemble.
Running In
Though all Smithy machines are tested at the factory and again before shipping from the
warehouse, it is wise to put your machine through a break-in run before starting to work.
After oiling the machine, check the belts to make sure the tension is correct. Do not plug
in the machine yet.
Follow these steps:
1.
Set the lathe to 160 rpm.
2.
Plug the machine into a grounded 30 amp circuit.
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Uncrating and Setting Up the MI-1220 XL