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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
37
SECTION FOUR A: RDC REPAIR / MAINTENANCE / OVERHAUL
or damaged. To replace the packing, carefully
slice a groove horizontally in the old packing,
then peel the packing out, using needle nose
pliers, and a small screwdriver. Clean the
packing nut to remove old lubricant, and any
corrosion. Install the new packing into the
packing nut, and set aside.
9. Lightly lubricate the threads of the stem with
Christo Lube®, then install the washer (5), and
packing nut (3), with packing (2). Apply a small
amount of lubricant on the stem shaft,
threads, and packing nut threads, then
rotate the stem clockwise, until it bottoms
out in the valve body. Thread the packing nut
onto the body threads, and tighten to 50 inch
lbs.
10. Wrap the pipe threads of the EGS valve with
two and a half wraps of Teflon tape, starting
1½ - 2 threads back, keeping the tape under
tension.
Figure 66
Reassemble ICS regulator
1. Lay out all the new O-rings for the ICS
regulator, and lightly lubricate them then
lay them on a clean surface. Use the ICS
regulator exploded view drawing, and this
procedure for reinstallation.
2. On the bottle adapter, install the two internal
O-rings (22).
NOTICE
The new packing will be loose, until the nut is run
down, and seated for the first time.
NOTICE
If the packing was replaced, torque to 65 inch
lbs. to seat the new packing, then slightly
loosen, and torque to 50 inch lbs. Install the
knob, spring and retainer nut, then tighten
retainer nut until the stem protrudes, through
the end of the nut.
NOTICE
All items on the XLDS system that require
lubrication are lubricated with Christo Lube®,
because Christo Lube has superior lubrication
properties. However, the piston assembly (38),
is
normally
packed
with
silicone
for
environmental protection, it is also acceptable
to use the silicone, for lubricating the ICS O-
rings 12, (11), (5), and (6), because these may
come in contact with the silicone grease used
to pack the spring cavity of the piston assembly
(38). All other XLDS components, that require
lubrication, should be lubricated with Christo
Lube® only.
NOTICE
Prior to re-assembling the ICS regulator
assembly, install the EGS valve assembly in the
pipe thread port, on the regulator body, and
securely tighten, so that the EGS knob points
straight out away, from the ICS regulator body.
