Castle TSM-21 Serial 61076 to 64233 (Parker) Operator Manual User Manual
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Foot Switch
Designed to work in series with the Safety Switch, the Foot Switch is a simple mechanical
micro-switch operated by a spring-loaded pedal. At rest the switch condition should be normally
open. Closing the switch begins the cycle.
Turn the power to the machine off.
Turn the Foot Pedal and guard over and remove the two small screws that hold the pedal
to the base.
Use a flat tip screwdriver to pry the pedal free from the yellow guard (it is held by a
silicone caulk).
Using a flat or phillips screw driver, remove the two screws on the left and right side of
the pedal. This will allow the pedal to come apart exposing the switch underneath.
Use two leads of the ohmmeter to probe the wire terminals while the switch is still in the
pedal. (Figure 25)
Figure 25
Without depressing the spring plate, the switch should register as an open circuit. When
depressing the plate, the switch should register as a closed circuit (approximately 0
ohms).
If an open circuit is still registered, then a new switch should be installed.
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