Castle TSM-21 Adjusting Pressure Regulator - Manual

Castle TSM-21 Diagnostic Manual, Rev. 2
Page 46
Castle TSM-21
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.
F i g u r e 3 2
To reset the Air Pressure Regulator:
1. Open the rear door and locate the Pressure Regulator mounted to the Control Box. See fig. 3 See fig. 3 See fig. 3 See fig. 32 2 2 2.
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 rotations.
This process will set the pressure to approximately 75 PSI.
5. Cut test pockets and adjust slightly more or less than 6 turns until the appropriate operational
speed is reached. NEVER EXCEED 7 FULL ROTATIONS. NEVER EXCEED 7 FULL ROTATIONS. NEVER EXCEED 7 FULL ROTATIONS. NEVER EXCEED 7 FULL ROTATIONS.
6. Push in the click-collar on the Regulator knob to lock it.
NOTE NOTE NOTE NOTE: If the Pressure Regulator has been adjusted, the Router Feed Rate may need re-adjustment after
the Pressure Regulator setting has been finalized. See Procedure 21.32 See Procedure 21.32 See Procedure 21.32 See Procedure 21.32
C a s t l e , I n c . 1 3 6 4 N . M c D o w e l l B l v d . P O B o x 7 5 0 2 3 6 . P e t a l u m a C A 9 4 9 7 5
( 8 0 0 ) 2 8 2 - 8 3 3 8 F a x ( 7 0 7 ) 7 6 5 - 0 9 5 3 w w w . c a s t l e u s a . c o m
Pressure
Regulator Knob
Router Feed Rate
Knob