Castle TSM-21 Diagnostic Manual - Manual (Page 28)

the cycle to stall, or the router may not extend at all although the Pilot Hole Drill and Clamp finish
the cycle.
5.9.1 TROUBLESHOOING STEPS:
1.
Disconnect power and air from the machine.
2. The Router Stop Switch and Magnet are attached to the back side of the Router Stop
Plate, which is located just to the left of the Drill motor. See Fig 11.
Router Stop Switch Router Stop Plate
Router Stop Magnet
Fig 11
3. Test for continuity across the terminals of the switch with the Motor Carriage in the Neu-
tral position. The switch should measure as CLOSED.
4.
Pull the carriage toward the rear of the machine until it stops against the Router Stop
Plate. The switch should now measure as OPEN.
5.
If the switch does not OPEN, adjust the magnet 1/16” farther away from the switch and
repeat step 4 until the switch measures OPEN with the carriage held against the Stop
Plate.
6. If the switch continuously measures CLOSED regardless how far away the magnet is,
replace the switch and magnet.
7.
If the switch measures OPEN while the Motor Carriage is in neutral position, adjust the
magnet 1/16” closer to the switch and repeat the test. Make additional adjustments
closer until the switch measures CLOSED.
Castle Inc TSM-21 Diagnostic Manual v2 Page 28 of 63