Castle TSM-21 Diagnostic Manual - Manual (Page 37)

Castle Inc TSM-21 Diagnostic Manual v2 Page 37 of 63
6.
Push the carriage forward by hand. The carriage should “spring” back when released.
7. Reinstall the Control Box and reconnect air and then power to the machine.
5.16 Drill Stop Switch (NC) 21.43
The Drill Stop Switch consists of a magnetic reed switch (with wires) and a magnet (no wires).
The switch is Normally CLOSED (NC) and OPENS at the end of the Pilot Hole cycle when the
Motor Carriage breaks the magnetic field. The switch then signals both the Drill solenoid and
Clamp solenoid to stop airflow, which allows the Drill to retract and Clamp to release.
If the Drill Stop Switch fails, or the magnetic field weakens or becomes misaligned, the machine
will not sense the end of the drill cycle. The drill may stay forward in the Pilot Hole causing the
cycle to stall or the clamp may extend but immediately release.
5.16.1 TESTING STEPS:
1. Disconnect power and air from the machine.
2.
The Drill Stop Switch and magnet are located inside the machine on the back side of the
Face Plate, slightly to the left of the Pilot Drill Hole. See Fig 18.
Drill Stop Switch
Motor Carriage
Drill Stop Magnet
Fig 18