REGULATORS
DX
I
INTEGRATED FIRST STAGE
© 2002 Design 2000
OCEANIC
OCEANIC
OCEANIC
OCEANIC
OCEANIC
®
Product Service Guide
Product Service Guide
Product Service Guide
Product Service Guide
Product Service Guide
Doc. 12-2205-r01 (01/00)
PG-9
FINAL ADJUSTMENT
1.
Connect a recently calibrated low pressure test gauge to a low
pressure hose, and connect the first stage with second stage and
low pressure test gauge to a pure breathing gas source of 3000
PSI. Slowly open the supply valve to pressurize the regulator, and
purge the second stage several times.
2.
Adjust the intermediate pressure, if necessary, to read 142-148
PSI by turning the adjustment cup(35) clockwise to increase the
pressure or counter clockwise to decrease it. (Fig. 22)
NOTE: Turn the adjustment cup no more than 1/8 of a turn at
a time, pausing to purge the second stage several times to gain
an accurate reading of the intermediate pressure before ad-
justing further.
NOTE: Ensure that the intermediate pressure holds stable at
142-148PSI, and does not creep or fluctuate after the second
stage has been purged several times. If creeping is detected,
refer to the troubleshooting section to determine possible
cause and treatment.
NOTE: Perform the following steps only if an Environmental
Protection Kit is being installed.
ENVIRONMENTAL KIT REASSEMBLY
1.
Insert the transfer piston(38) into the environmental end cap(37).
(Fig. 23)
2.
Turn the air supply off and bleed off intermediate pressure. Insert
the environmental diaphragm(39) over the top of the end cap(37)
with the thin perimeter seal facing down. Ensure that the thin
perimeter seal is seated completely into the circular groove in the
environmental end cap(37). (Fig. 24)
3.
Thread the plastic environmental cap(40) onto the end cap(37),
being very careful to avoid cross threading, and tighten clockwise
by hand until secure. DO NOT use tools to tighten.
4.
Turn on the air supply and purge the second stage several times,
and check once more to ensure proper intermediate pressure of
142-148 psi.
Fig. 23
Fig. 22
Fig. 24
