Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
93
5.1.8 Power Drawbar
A power drawbar is an optional item on a TRAK Knee mill machine. It is bolted to the top of
the head by the use of 3 SHCS. Some machines may require a washer to space the unit up
to the proper height to allow the drawbar to engage properly.
Air Regulator and Oiler - This unit requires between 80 and 100 psi to operate properly.
Some units work fine at 80 psi while others may need 90 or 100 psi. It is also important to
make sure the oiler for this unit is kept filled with oil. Fill the reservoir about 2/3 full using
AIR TOOL OIL ONLY. Failure to do this will not allow oil to lubricate the internal
components of the unit and it may wear out prematurely. It is also important to make sure
the oiler is set properly. To set the oiler, first close the adjustment screw (CW) on top of
the oiler completely making sure to not over tighten. Then open the screw (CCW) between
½ to ¾ of a turn. Any more than this will cause too much oil to get into the unit and oil
may come out of the exhaust port of the unit.
Tool Alignment Device - This unit also comes with a tool alignment device, which
attaches to the bottom of the spindle. This device allows the tool to easily be aligned with
the dogs when loading a tool.
Note: Only used on K4 machines
CAUTION!
Some tools may not work with this device and the original spindle dogs will need to be used.
The original spindle dogs are shipped with each machine in the toolbox. Some boring bar
holders may not work with this device.