Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
151
8.3 Installation of the Motor and Remaining Components
See figure 67 & 68
1. Install the motor mounting bracket to the top of the base plate.
2. Install the motor to this bracket. Install the belt between the pulleys and tension it
by sliding the motor away from the head. Tighten the 4 screws that hold the motor
down.
3. Install the limit switch brackets that hold the upper and lower quill limit switches in
place. Manually move the ballscrew up until you reach a hard stop. Now move the
ballscrew down 1 turn of the ballscrew and set the upper limit switch. The brackets
are slotted to allow up and down adjustment. Move the ballscrew down to the
bottom of its travel and once again turn the ballscrew 1 turn and set the lower limit
switch. In other words, the limit switch should trip about 0.200” from the top and
bottom of travel.
4. The limit switch cable plugs into the digital I/O port on the pendant for non-spindle
control machines. For spindle control mills, the limit switch cable plugs into the
digital I/O port on the spindle control electrics box
5. Temporarily install the Z electronic handwheel to the right side of the baseplate with
2 socket head cap screws. The Z electronic handwheel plugs into the Z-axis
secondary feedback port on the cable breakout box.
6. Power up the control and verify the Z electronic handwheel works.
7. Verify the locations of the switches are set correctly to prevent a hard crash when
the machine is moving at maximum rapid speed. Adjust switches as necessary.
8. Remove the Z electronic handwheel and install the covers and then re-mount the
Z electronic handwheel.
See Figure 68-1 for an illustration of the ballscrew assembly.