Festo VTSA-44-MP Series Manual page 104

3. Installation
3-26
For the pressure regulator with lockable rotary knob, proceed
as follows:
1. Turn the key 90° in a clockwise direction.
The rotary knob is pushed upward through spring force.
The rotary knob is in the regulating position.
2. Unscrew the screw with internal hexagon socket.
3. Pull the rotary knob up from the regulator head.
4. Set the control pressure on the corresponding pressure
regulator.
5. Push the rotary knob in the unconnected status down to
the regulator head.
6. Tighten the screw in the middle opening of the
rotary knob.
Festo P.BE-VTSA-44-EN en 1101f