Page 89 - Turner 1st sem Practicals

Give slight pressure on the top of the pointer to make the
tip to touch the work, and feel.
If the feel of contacting the pointer tip is uniform, it indi-
cates that the work is trued.
If the ‘feel’ is not uniform tighten the jaw where the feel is
high.

Repeat till a uniform feel is felt.
Finally, tighten the opposite jaws with the same amount
of pressure. (Fig 9)

Check once again for the true running of the work.

Bring the pointer tip closer to the work surface.
Rotate the chuck by hand and observe the gap.
Engage the spindle levers at about 250 rpm and run the
machine.

Producltion & Manufacturing : Turner - Exercise 1.3.25 77