CASTLE TSM-21 - Foot Switch (NO)

5.22 Foot Switch (NO) 21.80
The Foot Switch is located in the Foot Pedal. At rest, the Foot Switch is normally OPEN. It works
in conjunction with the Safety Buttons/ Safety Switch. Closing the Foot Switch (while
simultaneously closing the Safety Switch) starts the machine cycle.
5.22.1
TESTING STEPS:
1. Turn the Power Switch OFF.
2. Remove the two small screws that hold the Pedal to the yellow guard.
3. Use a flat tip screwdriver to pry the Pedal free from the guard. It is secured by silicone
caulk.
4. Use a flat or Phillips screwdriver to remove the two screws on the sides of the pedal and
remove the top. See Fig 23.
Spring Plate
COM Terminal
NC Terminals
Fig 23
Castle Inc
TSM-21 Diagnostic Manual Parker/Humphrey Solenoids
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