Specifications

Southwestern Industries, Inc.
ProtoTRAK SMX K2, K3, K4 & Retrofit Safety, Installation, Maintenance, Service & Parts List Manual
113
• Whatever number appears on the screen is the backlash value.
• Enter this value into service code 128.
• After entering this number redo the process. The DRO and indicator should
now both read 0.
CODE 128: Input Backlash Constant
Code 128 allows you to enter the backlash values for each axis. It displays the value after it
enters. This code is only used on machines with single feedback.
5.2.3 Head Rotational and Tramming
The TRAK knee head is free to rotate up to 90 degrees to the right or left. The K2 and K3
can also rotate 45° front to back. The K4 machine cannot rotate front to back.
5.2.3.1 To Rotate the Head Side to Side:
1. Loosen the four locknuts.
2. Rotate the head with the adjusting worm shaft. When rotating to greater than a
45
o
angle, support head by hand.
3. Tighten the locknuts. Snug each locknut, then lightly tighten each locknut, then fully
tighten each locknut in a crisscross pattern.
4. Use the method shown in the figure below and a parallel bar to square the head to the
table.
5.2.3.2 Tramming the Head
The purpose of tramming the head is make sure the head is perpendicular to the top of the
table from both side to side and back to front.
Side to side tolerance – 0.001”
Side-to-Side Alignment
1. Make sure the machine is level.
2. Make sure the table has been clean and the Z gibs are adjusted properly.
Mount a dial indicator in a tool holder and mount in the quill.
3. Adjust the Y-axis so that the spindle is in the center of the table.
4. Adjust the Knee so that the dial indicator will reach the table.
5. Move the dial indicator to 6 o’clock position and adjust the face so the needle is zero.
6. Do a series of sweeps from 9 o’clock to 3 o’clock and check for the repeatability of the
setup. The head should be trammed within ± 0.002”
7. If the head is out of tram from side to side then loosen the 4 head bolts and rotate the
head with the worm shaft.
8. Once the head has been trammed, tighten the 4 heads bolts. Be careful not to move
the head while tightening. Tighten the bolts in a criss-cross pattern. Torque = 30-35
lb.ft.