Castle LB-23 Diagnostics Manual - Manual (Page 25)

How To…
23.84
Foot Switch Test
The foot switch has two micro-switches and a spring inside the pedal. In order for the pedal to
function properly the spring needs to contact the first valve before the second. This sends the Index
Pins down before the drill head. When the pedal is released the spring should completely back off of
the valves.
SOLUTION STEPS:
1. Make sure the machine power is off and the air is still connected.
2. Remove the screws that fasten the pedal guard to the pedal and remove the pedal from the guard.
Revised 2/9/2007
First Valve Second Valve
3. Locate the phillips screw and 6/32" nylock nut that hold the pedal spring loosely in place.