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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
38
SECTION FOUR A: RDC REPAIR / MAINTENANCE / OVERHAUL
Figure 67
3. Install O-ring (26), on the ICS bottle adapter
threads.
4. Install O-ring (19) in the groove at the end of
the ICS shaft (20), then apply a light amount
of lubricant to the threads, and thread the
shaft into the regulator body (29), and tighten
snugly using the small 5/32 Allen wrench,
through the holes in the side of the shaft, to
act as a wrench.
Figure 68
5. Install O-ring (21) on the regulator body
groove, which encircles in the ICS shaft, then
lower bottle adapter onto the regulator body,
while ensuring the O-ring is captured in the
groove, and that the Dive Lab logo faces out.
6. Install the washer (23) and Nylock nut (25),
and lightly tighten, ensuring that the O-ring
between the bottle adapter, and the
regulator body stays in the groove, then
torque to 150 inch lbs.
7. Install the cylinder O-ring (26).
8. Install a new O-ring (27) on the ½” - 20 port
plug (28), install the plug at the end of the
regulator body, and tighten using the 5/32
Allen wrench.
Reassemble the Piston Assembly
1. Re-assemble the piston assembly (38). Start
by holding the poppet shaft (2), and installing
the small disc (3), with the stepped portion
facing away from the cone, then drop on the
O-rings (4) and (5).
2. Install the small plastic washer (6), into the
spring pad recess on the large diameter end
of the spring pad (7), with the flat side of the
washer against the spring pad, and the
concave area facing out toward O-ring (5).
3. Install the second O-ring (5), into the O-ring
groove, in the small end of the spring pad
(7).
4. Install the spring (8), shim(s) (9).
NOTICE
Item (6), on the piston assembly is a small flat
washer, which is flat on one side, and is slightly
dished on the other side.
NOTICE
Install the same amount of shims, which were on
the piston, when disassembled. Align the assembly,
so the piston is bottomed against the flat on the
poppet stem. Apply some extra lubricant around the
threaded area of the poppet shaft, and recessed
area in the top of the piston.
