Castle TSM-21 Serial 61076 to 64233 (Parker) Operator Manual - Manual (Page 18)

Drill Feed Rate Adjustment
The stroke speed with which the machine drills the pilot hole (and clamps the work piece) is
solely a function of the air pressure set at the internal Pressure Regulator. There is no separate
adjustment knob.
IMPORTANT
If the Drill Feed Rate is so fast that the machine shakes violently during the Pocket Cycle
or if the Drill Feed Rate is so slow that the Pocket Cycle is significantly longer than two
seconds, then it may be necessary to adjust the Pressure Regulator . Do not adjust the
internal Pressure Regulator unless absolutely necessary.
Figure 12
The internal Pressure Regulator knob is located on the Control Box (Figure 12), just below the
duplex power outlet for the Router and Drill motors. If in doubt whether the internal Pressure
Regulator is set correctly, follow the steps described below:
ƒ Unlock the knob by pulling it slightly away from the Control Box.
ƒ Turn the knob counter-clockwise until it reaches a mechanical stop.
ƒ Turn the knob clockwise five full revolutions (it’s helpful to make an index mark on the
knob.)
ƒ Lock the knob by pushing it slightly toward the Control Box.
16