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PM-833TV 4-13-21V1.indd Copyright © 2021 Quality Machine Tools, LLC
PM-833TV
SPECIAL PRECAUTIONS
BEFORE ADJUSTING HEADSTOCK ELEVATION
If the headstock is power-assisted (Z-axis motor
option installed), there will be limit stops on the
left side of the column.
To avoid damage:
When raising and lowering the headstock BY
HAND, stop BEFORE the limit switch plungers
touch either of the limit stops.
If power is connected:
When the headstock is being raised/lowered for
the rst time UNDER POWER, run the motor
at the slowest speed, testing the limit switch IN
BOTH DIRECTIONS by applying light nger
pressure to each of the switch plungers.
Headstock motion should stop instantly, re-
suming when the switch plunger is released.
Look under the Y-axis way cover (black nitrile).
The metal-shielded oil line should be concealed
within the column casting. If it protrudes like this,
it will be trapped — and damaged — when the
headstock is lowered.
Tuck it into the column!
Figure 2-1 Snagged oil line
Figure 2-2 Z-axis limit stops
Z-axis motor option, inset
(File photo, Model PM-833)
One-shot
lube
reservoir
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