Page 169 - Turner 1st sem Practicals
P. 169
Tighten the tailstock spindle clamp at this position and
check that the resistance does not change.
Set the machine for about 250 r.p.m. and allow the work
to run for a few seconds.
Check once again for the resistance and adjust the
tailstock spindle, if needed.
Work is now ready for operations. (Fig 7)
Before holding the work in between centres ensure that
the centres are aligned.
Advance the tailstock spindle by the hand wheel rotation
until the point of dead centre enters the centre-hole of the
work with proper seating eliminating all endwise move-
ment. (Fig 6)
Move the tail of the carrier back and forth. At the same
time adjust the hand wheel until only a slight resistance is
felt.
156 Producltion & Manufacturing : Turner - Exercise 1.3.48