Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
136
Caution!
Do not drill through the threaded quill stop rod.
7.4 Cable Breakout Box Mounting
The cable breakout box can come in 2 different configurations, one with auxiliary functions
and one without. The physical size of the box is the same for both versions. The only
difference is the 2 auxiliary ports found on the right side of the box. The auxiliary function
box will have a 110 V outlet and a 4-pin amp connector to run an indexer. Mount the cable
breakout box on the rear of the machine as shown in Figure 4 in Section 2. It will mount
with the use of (3) M6 x 20 SHCS. You may need to add washers to the back of the box to
offset it from the machine it case of casting interference.
7.5 Z-Axis Glass Scale Installation
See Figure 58.
1. Check the tram of the head in the X direction. If it is within a few thousands then
continue on. If not tram.
2. Mount the upper mounting bracket loosely to the upper mounting surface of the head
with a 10-32 cap screw.
3. Mount the lower mounting bracket loosely to the lower mounting surface of the head
with a 10-32 cap screw.
4. Install the 2 each, 6-32 leveling screws to each mounting bracket.
5. Mount the scale loosely to the mounting brackets with a 1/4-20x 1/2” bhcs and M6
washer.
6. Indicate the front of the scale and the right side of the scale to within .005” over the
travel of the quill. Tighten the bracket mounting screws and use the leveling screws to
adjust the alignment.
7. Mount the readerhead bracket to the quill stop knob with the pin and 1/4-20x 1” shcs.
8. Remove the readerhead cover plate and position the readerhead bracket so its holes line
up with the holes in the readerhead. Use shims as necessary between the pin and
bracket if the holes do not line up side-to-side with the readerhead holes. There should
be a gap of 0.030”-0.180” between the readerhead and bracket.
Kit Variation: some scale brackets require the transfer of the hole pattern of the readerhead to
the readerhead bracket.
9. The rest of the scale installation is the same as the X-axis, Steps 5 through 7.
Key Notes:
1. Move the readerhead up and down the glass scale and make sure the gap is consistent
between the readerhead and the glass scale. Tighten the screw to the quill stop knob.
2. Remove the red head securing plate.
3. If the gap is not consistent between the readerhead and the glass scale when moving the
quill up and down then adjust the angle of the scale to make the gap consistent.