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Copyright © 2020 Quality Machine Tools, LLC
PM-835S v3 2020-10
Figure 3-14
Quill feed components
Overload
clutch trip
lever
Quill auto
feed lever
Quill manual
feed handle
Fine feed
handwheel
Auto feed ON
Auto feed OFF
Figure 3-15
Activating the quill auto feed
* Feed direction and rate can be changed at any time while
the spindle is running.
Auto feed will terminate when the stop collar reaches the mi-
crometer depth stop, tripping the quill auto feed lever to the
right.
The tripping point is accurate only to within ± 0.01”. For a more
precise end point (± 0.001”), hand feed to a dead stop.
Feed rate
selector
1. Set the micrometer depth as required, Figure 3-11.
2. With the spindle
stationary
, engage the quill auto feed
(crank at right of the head).
3. Select* a feed direction, Figure 3-13. The directions given
in this figure apply to the usual spindle direction for drill
-
ing, clockwise looking down.
4. Select* a feed rate, Figure 3-14: 0.0015”, 0.003” and
0.008” per spindle revolution.
5. Start the auto feed action by pushing the quill auto feed
lever to the left, Figure 3-15.
