User Manual – eSX
OptiPro Systems, LLC.
Page 20 of 111
Last Modified: 8/27/2014
5.4
Vacuum Work Holding
The Vacuum Drain Tube (in Figure 5-11) collects the small amount of coolant that commonly leaks into
the vacuum system. The purpose of the vacuum drain tube is to collect this coolant before it can get to
and harm the vacuum pump. When the vacuum drain tube gets close to being filled with coolant, it must
be emptied using the drain valve at the base, in order to protect the vacuum pump.
Caution: When draining the vacuum drain tube, vacuum suction will be lost at the work piece. Be sure
the machine is not running and that the work piece is adequately supported or removed from the
machine before draining the vacuum drain tube. Remember to close the drain tube when finished.
The work holding vacuum level can be controlled by a lever valve on the front of the machine. The lever
valve will turn the vacuum on or off. The Vacuum Gage display below will show the instantaneous
vacuum level in inHg. The vacuum circuit contains the Vacuum Safety Cup which will fill up in a situation
where the vacuum drain tube overfills, and will shut off any vacuum going to the pump so the pump will
not be damaged.
Figure 5-12: Vacuum Work Holding Controls
Vacuum
Lever Valve
Vacuum Gage
Vacuum Safety
Cup
