Castle TSM-21 Serial 61076 to 64233 (Parker) Operator Manual - Manual (Page 34)

Drill Stop Switch
The Drill Stop Switch consists of a magnet (no wires) mounted near a magnetic reed switch
(with wires) mounted inside the machine case near the Safety Buttons. (Figure 28) At the full
extension of the drilling stroke, the carriage interrupts this switch to signal the end of the drilling
stroke and the end of the cycle. If the clamp doesn’t release and the pilot drill won’t retract, then
the magnet is too close to the reed switch.
Figure 28 Figure 29
ƒ Turn the power to the machine off.
ƒ Remove the Work Top
ƒ Loosen, but do not remove, the screws (Figure 29) that secure the magnet and the reed
switch to the machine case (you may need to remove a portion the laminate strip on the
front of the machine to access the mounting screws). Although the mounts are not
slotted, spread the magnet and the reed switch as far from each other as possible, then
retighten the screws.
ƒ Turn on the power to the machine and make a test pocket.
ƒ If the drill still stalls in the pocket, loosen and remove the screws that secure the magnet
and the reed switch to the machine case.
ƒ Make sure that the side of the magnet housing with the notch in it is facing away from the
reed switch. This ensures that the magnet is as far from the reed switch as possible.
ƒ If there is no notch in the housing, then detach it from the machine and visually inspect it.
Make sure that the magnet is turned so that it is farthest from the reed switch.
ƒ If possible, use a small file or drill bit to slot the mounting holes on the plastic housings,
then reinstall the magnet and the reed switch.
ƒ Turn on the power to the machine and make a test pocket. Continue to adjust the Drill
Stop Switch until the machine cycles normally.
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