Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
142
Caution!
After the readerhead is attached to the readerhead mounting bracket, do not move the
machine axis until the shipping brackets are removed. This will break the readerhead.
Caution!
Do not pinch the wires.
3. Mount the scale to the table:
• Transfer the center hole first to use as a pivot point.
• Align the scale so that it is within 0.005” end to end.
• Transfer the holes on the ends and install the screws.
• Re-check the alignment.
4. From the readerhead on the scale, remove the nameplate, shield and wires so that the
mounting holes are accessible.
5. Attach the readerhead to the readerhead mounting bracket:
• There are jackscrews on the readerhead to compensate for some gap between the
readerhead and the readerhead mounting bracket.
• Before tightening the readerhead to the bracket, there must be a .002 - .003” gap
between the readerhead mounting bracket and the jackscrews. Tightening the mounting
screws will eliminate this gap.
6. Replace the wires, shield and nameplate.
7. Remove the shipping brackets that fix the readerhead to the scale for shipping.
7.7.2 Y Axis Scale Installation
1. Install the readerhead mounting bracket to the side of the saddle.
Note: Once the readerhead mounting bracket is installed, position the scale and mounting spar
assembly in position in order to determine the amount of spacers needed for the mounting spar. Also
ensure that the scale is long enough for the saddle travel.
2. Transfer the mounting spar holes to the saddle and mount it.
Note: the mounting spar must be parallel to the Y-axis travel within .005” end to end both horizontally
and vertically. Use spacers and shims as necessary.
3. Slide the scale into the mounting spar and fasten.
Note: the rest of the installation is the same as for the X-axis, Steps 5 through 7.