Castle TSM-21 Diagnostic Manual - Manual (Page 51)

Castle Inc TSM-21 Diagnostic Manual v2 Page 51 of 63
5.26 Air Pressure Regulator Setting 21.90
The Pressure Regulator determines Drill Feed Rate, clamping pressure, and overall speed of the
machine. The factory setting is approximately 75 PSI and should be checked periodically or
when machine performance becomes rough or too slow. Cycles that are too slow can burn bits
and cause drill bit separation at the shank. Cycles that are too fast can cause drill bits to break
or to cut over-sized holes.
Note: It’s extremely important that a minimum 85 PSI be provided from your compressor.
Operating pressure can be especially affected by other machines that share the
same air line as your TSM-21.
5.26.1 TO RESET THE AIR PRESSURE REGULATOR:
1.
Open the rear door and locate the Pressure Regulator mounted to the Control Box. See
Fig 29.
Pressure Regulator Knob
Router Feed Rate Knob
Fig 29
2. Pull out the Click-collar on the Regulator knob to unlock it.
3.
Turn the knob fully counter-clockwise until it stops
4. Use a marker pen to make a reference point on the knob then turn it 6 full clockwise rota-
tions. This process will set the pressure to approximately 75 PSI.