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PM-1030V v5 2020-10 Copyright © 2020 Quality Machine Tools, LLC
Figure 3-20 Feed rates in inches per spindle revolution
Fine feed setup Coarse feed setup
C
-
A
0.002
B
0.004
C
0.0035
A
0.007
B
0.014
SADDLE
CROSS
SLIDE
C
-
A
0.0014
B
0.0028
C
0.0025
A
0.005
B
0.01
SADDLE
CROSS
SLIDE
POWER FEED RATES (Turning & Facing operations)ENGAGING THE POWER FEED
First check for obstructions — Locks OFF?
Do not engage at high leadscrew speeds!
Figure 3-17 Saddle feed
Lever RIGHT and UP
Figure 3-18 cross-slide feed
Lever LEFT and DOWN
Engage by rst shifting the power feed
lever to the right or left, then swing
the lever up or down. Disengage by
swinging the lever to its mid-position,
Figure 3-19.
Figure 3-19 Power feed disengaged
POWER FEED (Thread cutting operations)
For thread cutting, the saddle is driven by the threads on the
leadscrew in combination with a half nut in the apron, Figure
3-19.
Before engaging the half nut be sure there are no
obstacles to saddle movement, and that the power
feed lever is in its neutral, mid-position.
The power feed doesn't stop by itself!
Other than intervention by the operator,
there is nothing to stop (for instance) the
saddle running into the tailstock.
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