APPENDIX B : COMPRESSOR DRIVEN AIRDRYER
B--36 20950 Issue 1 April 98
(6) Insert a 4mm Allen key into the adjustment end of the PRV as far
asthelockingscrew(seediagrambelow),loosenthelockingscrew
by turning it anti--clockwise.
TP7801_1
(7) Turn the mains isolator On.
(8) Turn the regulator clockwise, until the pressure reading on the
gauge no longer increases.
(9) Slide the allen key down into the adjusting screw (see diagram
below)
TP7806_1
(10)Observing the pressure gauge, turn the adjusting screw until it
reads4.2bar ¦0.2bar. Turn clockwisetoincreasethe pressureand
anti--clockwise to decrease.
(11) Remove the allen key from the PRV and check that the pressure
does not fall, if it falls out of tolerance, repeat step (10) until it
remains within the tolerance.