Graduated Dials, Power Feed Controls, Example

M1001 6" x 26" Vertical Mill

Graduated Dials

The table handwheels and the knee handle have graduated dials. Each mark represents 0.001" of movement and one full revolution equals 0.100" The graduated dials float and can be indexed or "zeroed" by loosening the knurled head thumb screw, rotating the graduated dial to "0", and securing the setting with the knurled head thumb screw (see Figure 17).

Example:

Suppose you want to drill a series of holes with 1/2" centers (0.500"). After locating the first hole placement and drilling, you would zero the graduated dial of the appropriate axis, set the knurled head thumb screw, move the table 0.500" in the appropriate direction and drill the next hole.

Figure 17. Graduated dial.

OPERATIONS

Power Feed Controls

This mill comes equipped with a power feed on the longitudinal travel. The power feed has the following controls (see Figure 18 for items A–D, and see Figure 19 for items E–F): For additional information, please refer to the power feed manual supplied with this mill.

A.Right/Left Feed Selector—Switch the lever to the left or the right for the desired travel direction. The table should come to a complete stop before changing directions.

B.Rapid Speed Switch—Pressing this switch will cause the table to feed at its maximum rate until it is released.

C.Feed Setting Dial—Setting from 0 (no travel) to 10 (fastest travel).

D.ON/OFF Switch—Delivers power to the power feed.

E.Limit Switch—Stops the power feed when it makes contact with the power feed stops.

F.Power Feed Stops—Adjustable stops trigger the limit switch and shuts OFF the power feed when the table is at the end of its travel.

Figure 18. Power feed controls.

Figure 19. Limit switch and power feed

stops.

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