XS Scuba SEAAIR, Руководство по обслуживанию и ремонту

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Service & Repair Manual
25
Copyright ©2015 XS Scuba
4. Open the supply valve again while monitoring the IP test gauge
to ensure that the intermediate pressure does not rise above 145
psi. If the intermediate pressure rises above 145 psi, immedi-
ately close the supply valve and purge the system. Refer to the
Troubleshooting section, and remedy as needed before proceed-
ing.
5. Repeatedly purge the second-stage approximately 15-20 times
to cycle the regulator. Then, check the test gauge to determine
whether the intermediate pressure locks up consistently after
each cycle and remains stable at 140 (±5) psi, with no signs
of creeping or fluctuation. If the intermediate pressure is not
within the specified range, or if it fails to lock up with no creep,
refer to the Troubleshooting section to determine the cause of
the problem. Repeat this procedure after it is corrected.
Second Stage Adjustment and Flow Test
1. Connect the IP Test Gauge onto the inlet fitting of the Inline
Adjusting Tool, and mate the opposite fitting of the tool onto
the inlet fitting of the second stage. Pull back the knurled knob
to retract the slotted drive, and tighten the tool clockwise onto
the inlet fitting only until finger snug. (See Fig. 37.)
2. Mate the female fitting of the LP hose onto the male fitting of
the IP Test Gauge, and tighten the swivel nut clockwise until
finger snug.
3. Install the LP hose into an intermediate pressure port of the first
stage regulator after it has been verified to be properly serviced,
with a stable intermediate pressure of 140 (±5) psi . Apply a
torque wrench with 17mm crow-foot to tighten to 38 (±2) inch-
lbs.
4. Turn the adjustment knob fully out counter-clockwise.
5. Ensure that all the first stage ports are sealed, and connect the
first stage with a filtered gas supply of 2,500-3,000 psi. Slowly
open the valve to pressurize the regulator. Listen to verify that
a leak can be heard from the second stage valve, and proceed to
step 6.
a. If airflow cannot be heard, it will be necessary to initi-
ate a slight leak between the orifice and poppet. Press the
knurled knob inward to engage the slotted drive of the In-
line Adjustment Tool with the head of the orifice inside the
inlet fitting. Then, turn the orifice slightly counter-clock-
wise while lightly depressing the purge cover to prevent
wear on the seat. Do not adjust any further than is needed
to establish a slight leak.
6. Hold the drive of the Inline Adjustment Tool engaged with the
orifice. While lightly depressing the purge cover, turn the ori-
fice slightly clockwise a very small fraction of a turn. Pause after
Fig. 37 – Inline Adjustment Tool w/ IP Gauge