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This Guide is made available for the express use of owners and users of the Dive Lab XLDS systems.
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Document XLDS Guide – Section Four A
Revised September 30, 2019
41
SECTION FOUR A: RDC REPAIR / MAINTENANCE / OVERHAUL
System Flow Test
Preliminary
A flow test is done on the complete ICS and
umbilical system, to ensure system capability. It is
important that the RDC pressure gauges are
accurate, to ensure an accurate test. All RDC LP
gauges should be cross connected, and compared
to with a master gauge, at least every 24 months
or anytime accuracy is in question.
Figure 74
1. After successful ICS pressure set up/test,
remove the ICS intermediate pressure gauge,
and attach the flow meter to the ICS, to
helmet supply whip.
2. With a minimum of 1000 psig HP supply, and
a static pressure of 350 psig on the RDC, open
the umbilical supply valve, allowing flow
through the flow meter. Allow the flow to
stabilize, then take the reading at the widest
point of the float.
3. Record the following before flow starts.
Room temperature_____ °F
LP supply set pressure ______ psig (350 psig)
HP supply pressure ______psig
(minimum of 1000 psig prior to start of flow)
Record the following during flow.
HP pressure ______ psig
LP supply discharge pressure ______ psig
Flow ______ slpm
If the flow is below 670 slpm, please contact Dive
Lab at 850-235-2715 office / 850-258-7717 cell,
or email us at [email protected]
One-way Valve Cleaning and
Overhaul
Disassembly of the One-way Valve / Tools
Required
•
Drawing 7023 O & M Manual
•
Soft Jaw Vice
•
1 inch Open-end Wrench Attachment on
Torque Wrench
•
8”-12” Adjustable Wrench
•
(If no vise is available, use an additional
backup 1 inch Open-End Wrench)
•
Soft Goods Kit PN# 525-330
•
Christo Lube®
•
Lint Free Cloths
•
Fresh Water
•
Detergent
•
Small Nylon Brush
NOTICE
A maximum of three shims may be used only. If
three shims do not restore the proper pressure
range the spring (8), should be replaced. For adding
or removing shims, refer to the disassembly and
reassembly section, of the ICS regulator overhaul.
