Promac JDT-5030 Operation Manual page 25

In case too tight mesh between tool shank and spindle taper and the tool cutter could not fall
down after several strokes, then you have to use the normal way by using a taper wedge to
dismounting the tool cutter.
If milling cutter is used, be sure to take away the screw on the tool holder screwed on the end
of the spindle, the milling cutter then could be easily dismounted.
Warning: The nob (16)must not be pulled out while tool mounting or machine
Running, otherwise, the spindle will goes up quickly which results tool
cutter falls down. It is really dangerous.
7.3 Changes for the spindle speed and feed rate:
Spindle speed change could be made by moving the levers ( 14 ) located in the front of the
spindle box. Relations between spindle speed revolution position is indicated at the dial.
Meanwhile, the digital meter indicates the actual spindle revolution.
As mounting or dismounting tool cutter or adjustment of work piece needs spindle rotation
by manual, therefore, the lever shall be in the "idle" position, so spindle rotation could be
easily obtained.
Changes of the feed rate could be realized by using the lever ( 5 ) in the upper right side
position of the spindle box. As micro manual feed needs disengagement of the auto feed,
therefore, the lever shall also be in the "idle" position.
7.4 Selection and operation of the spindle feed:
There are three types of spindle feed selections for your choice as per the requirement of
your machining:
Manual feed: Simply moving the feed lever( 4 )at the right side of the spindle box, the
spindle will move down if turned the lever in counter clockwise and the
spindle will move up if turned the lever in clockwise.
Auto feed: There are three levers( 4 ),at the end of each lever equipped with a push
button. Push one of any three buttons( SB4 ), auto feed could be realized as
per your required pre-set feed rate. Push one of any three buttons( SB4 ) once
again, the auto feed will be stopped immediately.
Operation Manual
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