POSEIDON 2710 Setup guide

REPAIR INSTRUCTIONS SECOND STAGE DEMAND VALVE
EXPLODED VIEW
Art. No. 2725, 2941, 2961, 3546
JETSTREAM
1.0:E10
Low pressure hose with saftey valve
Low pressure valve
Servo valve
Housing complete
Switch

JETSTREAM
1.0:E11
SECOND STAGE
2710, 2941, 2961, 3546
Removal:
1. Disconnect the low pressure
hose from the second stage.
2. Remove the low pressure valve
from the housing (15) with a
screwdriver. Make sure the servo
valve needle is not bent. Be sure
to hold the low pressure valve
carefully, to avoid dropping it
(see figure).
3. Cut off the locking strap (17)
with cutting pliers. Remove the
mouth piece (16).
4. Unscrew the 4 screws (26) with
a 3.5 mm screwdriver.
5. Remove the cover (25) and the
diaphragm (24).
6. Remove the purge button (27).
IMPORTANT
The switch should not be
removed if it is undamaged.
Removal:
1. Pull out the diaphram cam (22).
2. Cut off the switch (18) with a
pair of cutting pliers close to
the locking washer (21).
Remove the switch.
3. Remove the o-ring (19).

JETSTREAM
1.0:E12
Removal:
1. Remove the servo valve (14).
2. Unscrew the stop screw (9) and
remove the valve tube (12).
Remove the o-rings (11) (13)
with an o-ring remover. Make
sure the sealing surfaces are not
damaged.
3. Remove the rubber plate (10).
4. Place the valve housing in the
tool. Unscrew the valve housing
(4) with a special spanner.
5. Remove the o-ring (7) with an
oring remover. Make sure the
sealing surfaces are not
damaged.
6. Remove the valve insert.
7. Remove the o-rings (5) (3) with
an o-ring remover. Make sure
the sealing surfaces are not
damaged.
Sealing surfaces

JETSTREAM
1.0:E13
BEFORE INSTALLING CHECK
THE FOLLOWING:
1. Diaphragm (24). Check that the
sealing surface of the diaphragm is
even. Also check that there are no
holes in the diaphragm and that the
diaphragm washer is properly fixed in
position.
2. The mouth-piece (16). Make sure
there are no cracks.
3. The purge button (27). Make sure
there are no cracks. Check to make sure
the spring is undamaged.
4. Servo valve (14). Check to make
sure that the valve bar is not bent.
5. The switch: Put the switch into - and
+position. It should be moved rather
slowly, control the position of the
diaphragm and that it is properly
tighten.
When servicing the regulator the following parts should be
replaced: See chapter Servicekit.
1. All o-rings. Also the ones in the low pressure hose.
CLEANING:
If corrosion or salt deposits occurs, place all metal parts –
concentrated Hempocid* or 15% Hydrochloric acid for about 10
minutes.Then, rince the parts thoroughly and blow dry with air.
The synthetic parts in the second stage must not be treated with
solvent.They shall be cleaned in freshwater only.
*Hempocid = Acid Liquid Detergent Containing phosphoric
acid (5 - 10%) and bactericid for desinfectant cleaning.

JETSTREAM
1.0:E14
SECOND STAGE
Assembly:
1. Mount the o-rings (5,3) on the
valve housing (4). Use the tools.
See diagram.
2. Install the valve insert (6) in the
valve housing (4).
3. Place the o-ring (7) in the
groove of the valve insert (6).
Lubricate the thread. Install the
valve housing nut (8).
4. Place the valve housing in the
handle.Tighten with a tool.
See diagram.
3
4

JETSTREAM
1.0:E15
5. Install the o-rings (11,13) on the
valve tube (12). Grease the threads
and the o-rings.
6. Screw in the valve tube (12) until
about 2 mm space remains as
illustrated.
7. Install the rubber plate (10). Screw in
the set screw (9). Do not tighten up.
8. Screw the servo valve (14 ) on to
valve tube (12). Tighten up. Be
careful not to bend the valve needle.
9. Test the low pressure valve for
leakage. See chapter: Final
adjustment.
SWITCH
1. Fit in o-ring (19) and lubricate it.
2. Fit in the switch with the narrow
part against the - minus sign on the
second stage valve. See diagram.
3. Install the locking washer (21) on
the switch (18). Press it on a drift.
Tighten the locking washer so that
there is sufficient resistance when
setting the switch.
4. Fix the diaphragm cam (22) upon the
switch (18). Set switch at - (minus),
press the diaphragm cam into
correct position per the diagram.
The distance from the top of the
diaphragm cam to the housing should
be 2 mm, concerns diaphragm of
silicone rubber, see diagram. Carefully
push diaphragm cam into the right
position. Note the cam should be
pushed slowly on to the switch so that
the switch is not moved.

JETSTREAM
1.0:E16
Assembly:
1. Fit the purge button in the cover (25) for
the second stage. Make sure that the
spring is undamaged.
2. Position the diaphragm (24) with the
diaphragm washer facing down wards
and the hole positioned as illustrated.
3. Position the cover (25) for the second
stage according to the adjacent
illustration. Lubricate the screw and
tighten (27) with a screwdriver.
4. Install the mouth piece (16) and the
locking strap (17). Tighten up and cut
off with plastic band pliers.
5. Checking the second stage for leaks:
Place the mouth piece against your lips
and cover the low pressure hose
connection with your thumb and inhale
lightly. This will create a partial
vacuum inside the second stage. If the
pressure does not equalize in 5 second
stage leaks. See chapter fault detecting.
LOW PRESSURE HOSE
WITH SAFETY VALVE
Check the hose for cracks or other defects.
Check the sealing surfaces and threads.
Install the o-ring (1) and lubricate it.
Install the hose in the outlet of the first
stage valve marked R (important for the
regulators performance). Tighten with 13
mm open- end wrench. Oceanair in an
optional outlet marked LP.