54 Series

Original Lamp Assembly Installation
   The original version of the buttons used a "snap" design to assure a positive fit between the button bezel and the lampholder assembly. Simply insert lampholder assembly into button bezel (step 1), then rock the lampholder assembly to one side while pushing forward into the button body (step 2), then rock the lampholder assembly in the opposite direction until it 'clicks' in place (step 3).
Snap Assembly

Original Button Parts

Exploded Button
Lamp Assembly (Current Model)
  The current version of the button has the lamp holder assembly being attached to the bezel by a clockwise quarter turn.....

Twist Assembly   Twist Assembly

Twist Assembly