15
9
8
7
20. When the indicator ring bottoms out, turn it slightly
counterclockwise so the corners of the square shaft of the
stem point towards the centers of the square cut outs of the
indicator ring. Turn an additional 90° counterclockwise.
21. Place the handwheel (10) over the indicator ring. Place
the spring (9) into the handwheel, followed by the washer (8).
Using a medium flat bladed screwdriver, screw the retaining
nut (7) onto the end of the stem until the retaining nut will not
turn any further. Avoid cross threading the nut.
22. Install a new, lubricated o-ring (16) into the swivel end
(second stage end) of the hose.
NOTE
:
this o-ring is in the second stage overhaul
kit, p/n 108344 or 108444.
First Stage Testing
NOTE
:
Initial first stage testing is done WITHOUT
anything attached to the end of the hose. For proper
filling instructions, refer to the following section:
Filling Procedures
for either cylinder fill adapter
to fill from a larger cylinder, or yoke fill adapter to fill
from a compressor.
1. Cycle the handwheel on and off several times to ensure
the proper function of the indicator ring and valve seat. Close
the on-off valve by turning the handwheel (10) clockwise
until it stops.
2. Install unit in MRS III or attach the fill adapter. Attach a
3000 psi supply to the fill adapter. Secure the end of the
hose prior to pressurizing.
3. Slowly begin to fill the cylinder with 3000 psi of air (Do not
exceed 500 psi/minute). During the fill process, check any
air leaking from the open end of the hose. If an air leak is de-
tected, immediately stop the filling process consult the
Table
1: Troubleshooting guide p. 23
. If a leak is not detected,
finish filling the cylinder to 3000 psig. Turn off the supply line
valve and bleed the line pressure. Remove the supply line
from the fill adapter port and unscrew the fill adapter from
the fill port.
4. Thread a medium pressure (MP) gauge to the hose until
finger tight. Slowly turn the handwheel (10) and open the
valve. Check the MP to make sure it "locks up" at 135±20
psig. Closely monitor the MP gauge for a few minutes to
make sure the MP does not begin to creep upward. Any
MP creep indicates a small high pressure leak somewhere
in the system. If an MP creep is detected, consult
Table 2:
Troubleshooting guide on page 24
.
5. Assuming the MP is properly set, close the SEA LV-2
valve and open the bleeder valve on the MP gauge to relieve
the air from the system. Remove the MP gauge from the end
of the hose.
6. Since there is nothing attached to the end of the hose
and the cylinder is fully charged, set the system in a secure
place so that the valve cannot be accidently opened.
Filling procedures
WARNING:
use safety glasses when charging with hp
air.
Filling the SEa from a scuba cylinder
NOTE
:
the SeA system does not include a
SCUBA fill adapter. This adapter (P/N 108325) may
be purchased separately. (Refer to Figure A shown
on page 5 of the SEA User’s Manual for component
identification.)
1. Using a calibrated pressure gauge, check the supply
cylinder to ensure that it contains at least 2,700 PSI/ 186
BAR and less than 3,100 PSI/ 214 BAR. It is very important
to ensure that the SEA is filled to its total capacity, but not
overfilled.
2. Remove the protector cap from the threaded nozzle of
the fill adapter. Inspect the nozzle to ensure the o-ring is
present and seated evenly at the base of the threads.
