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
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