25
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XS Scuba Valves Service Manual
3. Inspect the access plug’s(25 and/or 26)
thread for any sign of damage. If any damage
is found to the access plug’s threads, you
must replace the access plug and do not
reuse it.
4. Clean the plug and install new, lubricated
o-rings(23).
During the Reassembly:
1. Thread the access plug into the valve in the
appropriate direction, CW for LH valve, CCW
for RH valve (notched). Using a 13/16’ crows
foot or socket, torque the access plug(s) to
18 lbs*ft (250 kg*cm) (24.5 N*m).
Test the valve as outlined in the preceding section titled
“Testing”. Pay special attention for any leaks that may be
originating from the access plug(s) (25 and/or 26).
Servicing XS Scuba Crossbar with
Isolator Valve
CAUTION: This manual does not provide
instruction on how to disassemble and reassemble
twin cylinder set ups. This manual assumes that
the technician is familiar with how to do this. If you
do not know how to disassemble and reassemble
twin cylinder set ups, please refer to the support
document, “Assembling Twin Cylinders”, found at
www.xsscuba.com under the “Support” header.
With the Crossbar and the two XS Scuba Modular Valves
still installed in the twin cylinders, perform the Inspection
and Pre-Test prior to disassembly as outlined earlier in
this manual.
If disassembly is necessary,
1. Remove the Crossbar from the Modular
Valves.
NOTE: The barrel Jam Nut(18) on the
right-hand side of the Crossbar has notches on it
indicating reverse threads.
CAUTION: Do not attempt to disassemble
the Isolator Valve on the Crossbar while it is still
attached to a Modular Valves. Doing so may
compromise the Cross Bar, rendering it useless.
2. Mount the Crossbar in a bench vise as
shown. Disassemble the Isolator Valve as per
previous disassembly directions.
3. After disassembling the Isolator Valve,
remove the four, side connector o-rings(23).
4. Remove both jam nuts(18 & 19) for cleaning if
necessary.
5. Inspect the side connector threads for
damage. If damage is found, the Crossbar
must be condemned.
