UVP TB-101 Selector Switch - Manual (Page 7)

6. The selector switch knob does not have a groove or flat surface to align on the selector
switch shank, so it is necessary to visually align the white indicator line on the knob with the
desired indicator position on the face of the transilluminator.
Once the position of the knob has been aligned, firmly press the selector switch knob into
place on the switch shank. Gently rotate the knob to ensure correct alignment. If the knob is
not aligned, remove the knob and repeat the process until properly aligned.
7. Using the 1/16” Allen wrench, tighten the set screw securing the selector switch knob to the
selector switch shank.
1/16” Allen
Wrench