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XS Scuba Valves Service Manual
Reassembly:
1. Reassemble the Isolator Valve as per
previous assembly instructions.
2. Install the jam nuts(18 & 19) as far up the
connector as possible.
3. Install four, new, side connector o-rings(23).
4. Install the Crossbar.
A. Thread the Isolator Valve into the two Modular
Valves, pulling the Modular Valves together until
the proper center-to-center distance is reached
between the two dip tubes. Position the isolator
handwheel to the desired position.
5. Engage the jam nuts(18 & 19).
A. While holding the handwheel(22) in the desired
position, spin the two jam nuts(18 & 19) until they
snug up against the Modular Valves. Using a 7/8”
crow’s foot, apply a torque of 85 lbs*in
(100 kg*cm) (10 N*m).
Testing:
1. Test the entire twin manifold assembly
as outlined in the previous section titled
“Testing”. Pay special attention for any
leaks that may be originating from Crossbar
connectors entering the Modular Valves.
Servicing the “J” Reserve Mechanism
on the Reserve “J” Valve
NOTE: For this section, the numbers found
in parenthesis reference the KEY numbers in the
Reserve J Valve Exploded Diagram.
Disassembly
1. Remove Reserve Lever(27).
A. Using the TL113, Valve Handwheel Tool,
remove the Reserve Lever(27) from the J Valve by
turning the handwheel nut(14) CCW. Locate and
identify the nut(14), reserve lever(27), spring(28)
and washer(11).
WARNING: If you are working on a valve that
is in a cylinder, you must insure that the cylinder is
completely empty before the next step: loosening
the reserve bonnet(26).
WARNING: Removing reserve bonnet(26)
while the valve is pressurized will result in a rapid
and violent release of air. This can lead to serious
injury.
2. Remove the Reserve Bonnet(26) Assembly.
A. Using a 5/8” wrench, remove the reserve
bonnet(26) by turning it CCW.
i Remove the stem(25).
ii Remove the stem o-ring(8) from the
stem(25).
iii Remove the stem washer(9). This is the
white washer that is usually found inside the
reserve bonnet(26).
iv Remove the o-ring(17) found on the outside
of the reserve bonnet(26).
