Saddle Gib - The saddle is supplied with a square head bolt on the front right hand side of the slide. Before making adjustments to the sad- dle gib, ensure that this bolt is loose by turning it counter clockwise. See Figure 26b.
It is important that the apron gib be properly adjusted. A loose gib will cause finish problems in a workpiece. A gib adjusted too tightly will cause premature wear.
The gib for the saddle is located on the bottom of the back edge of the slide. The tension on this gib is maintained by four setscrews with jam nuts. By loosening the jam nuts and tightening the setscrews, the gib will tighten. Loosening the setscrews will loosen the gib. The gib strip is properly adjusted when a slight drag is detected while moving the apron. Do not over tighten.
It is important the 4 setscrews are tightened evenly. When tightening the jam nuts, hold the setscrew’s position using an Allen® wrench.
Square Head
Bolt
Figure 26b. This bolt locks the apron in place.
Steady/Follow Rest
To adjust the Steady Rest:
1.Loosen the lock nuts. See Figure 27.
2.Open the sliding fingers by turning the knurled screws until they fit around the workpiece. Secure the steady rest in posi- tion.
3.Tighten the knurled screws so that the fin- gers are snug, but not tight against the workpiece. Tighten the setscrews and the lock nuts.
4.Lubricate the brass points with machine oil.
The Follow Rest is setup in the same manner except that the place of the third finger is taken up by the tool bit. The follow rest prevents long, small diameter pieces from flexing under the cut- ting pressure from the tool bit.
Lock Nuts
Figure 27. Steady rest lock nuts.
|
|
|
|
|
|
|
|
|
|
|
|
G4002/3 Gear Head Lathes | |||