Page 149 - Turner 1st sem Practicals

A light below with a soft head hammer may Ensure that the wheel is running true and it is
be needed to free it from the wheel. clear of the inner part of the guard.

Slide the worn out wheel off the spindle. Tighten the nut sufficiently to ensure that the flanges will
drive the wheel without slipping. (Fig 12)
Remove any paper washer that has adhered to the flange.
(Fig 10)

Refit the outer plate of the wheel-guard.
Reset the work-rest as close to the wheel face as possible.
Tighten the work-rest clamp firmly. (Fig 13)

Brush down to flange, spindle and thread.
Clean out any abrasive particles that have collected inside
the guard.

Insert the new wheel on the spindle and assemble.
(Fig 11) Place the outer flange in position.
Screw up the clamping nut by hand, firmly enough to hold
the wheel in position. (Figs 11 a)

Rotate the wheel again by hand to ensure that it runs
freely, and true.

Press the starting button and allow the wheel to operate
for at least one minute at full operating speed. (Fig 14)
A correctly fitted new abrasive wheel should
run true and it does not need dressing.

136 Producltion & Manufacturing : Turner - Exercise 1.3.42