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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK VMC Mills with ProtoTRAK RMX CNC Safety, Installation, Maintenance, Service & Parts List
2.9.1 Air Regulators and Solenoids
The VMC consists of 2 air regulators, 3 air flow valves and 3 solenoids that need no adjustment. They
are all set at the factory but should be checked upon installation.
The main air regulator for the machine should be set at 90 psi and the secondary one that supplies air to
the spindle cartridge should be set at 7 psi. These regulators are adjusted by pulling the cap upward and
rotating the cap clockwise to increase the air pressure and CCW to decrease the air pressure.
The 3 air flow valves should be set at the factory but can be checked as follows. For the valve that
controls the flow of air through the spindle during a tool change, close this valve and open it 6 or 7 turns
and then lock it in place as shown in figure 2.9.1a. For the other 2 valves that control the speed by
which the ATC moves in and out, they should be opened all the way and locked in place as shown in
figure 2.9.1b.
The in-line air switch shown in figure 2.9.1b turns the system air on and off, put the collar in the lowered
position (off) before connecting the air supply. Push upward to turn on the air.
Figure 2.9.1a
