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INSTRUCTIONS FOR LEVELING A CONCAVE OR CONVEX LATHE BED
After mounting and bolting the lathe to a level bench or stand according to instructions, if it’s found that the lathe bed is bowed, it can be straightened as follows.
If lathe bed is CONCAVE

If lathe bed is CONVEX
If lathe bed is CONCAVE –

Place a thin metal shim under the inner ends of the lathe legs, both front and rear (see Figure 1). Check with a straight edge placed on top of the bed ways (see Figure 1), adding shims and tightening bolts until bed is straight.

 concavebed1.TIF (76450 bytes)

Figure 1. To straighten CONCAVE lathe bed, place shims under inner edges of lathe legs, both front and rear.

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If lathe bed is CONVEX –

Place thin metal shims under the outer ends of the lathe legs, both front and rear (see Figure 2). Check with a straight edge placed on top of the bed ways (see Figure 2), adding shims and tightening bolts until bed is straight.

 concavebed2.TIF (79620 bytes)

Figure 2. To straighten CONVEX lathe bed, place shims under outer edges of lathe legs, both front and rear.

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