25
TRAK Machine Tools
Southwestern Industries, Inc.
ProtoTRAK SMX, K2, K3 & K4 & Retrofit Safety, Installation, Maintenance, Service and Parts List Manual
2.12 Air Connection - Optional
The K mill machines have an air hookup in the rear of the machine if the machine has a power drawbar or auxiliary
function option. Auxiliary function options are only found on 3 axis mills.
If the machine has a power drawbar option then the machine will include an air regulator, air manifold and an oiler. The
air fitting is ¼” NPT. Within the manifold there is an additional air line port in case the user wants to hook up an air line
to clean chips. Remove the plug to gain access to this port. If the machine has an auxiliary function option then the
machine will include an air solenoid as shown below.
The air regulator is set to 90 psi at the factory for the power drawbar unit and solenoid. See Section 5 for more
information on the power drawbar unit. The air comes in through the manifold, and then into the air regulator that tees
off into an oiler for the power drawbar unit and into an air solenoid. The solenoid is used for a misting system the user
may install later on this machine. There is a ¼” quick disconnect air fitting on the solenoid where the mister air hose
can be plugged into. See the figure below for an illustration.
Figure 12
Air Regulator/Solenoid Assembly
P/N 22380-1
Figure 11
Transformer Option
Schematic
