By loosening the lock lever, the belt position on the tower pulley can be changed. Re-tighten the belt and then
proceed at the next speed.
Drilling-Milling Spindle Driving
Firstly, make sure all the guards are in place, and then push the start switch to turn on the machine. The pilot
light will indicate that the machine is on. Shift switch 9 will turn the machine in either a forward or reverse motion.
Drilling milling spindle feeding can be changed by lever 13. If a micro feed is needed, pull out the drilling-milling
clutch lever 10, and then operate lever 11 for the micro feed.
The speed of the drilling-milling spindle can be adjusted via lever 8. Push the lever backwards (this will loosen the
belt), then change the belt position on the pulley to the desired speed, push the lever forwards (to tighten the belt).
Finally, lock lever 8. This process can be used to achieve 16 different speeds.
Longitudinal Feed
Hand Feeding:
Turn the clutch handle (1) to the middle position, half-nut lever (26) in disengaged position,
turn the hand wheel (23), now longitudinal hand feeding can be achieved.
Automatic Feeding:
The half-nut lever (26) in engaged position, longitudinal-cross feed clutch handle (22)
in inner position. Now cross auto-feeding can be made. By changing the handle (2) position and gear A, B,
C, D, 12 kinds of automatic feed amount can be obtained as follows.
Imperial Metric
Summary of Contents for Centurion 500
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