27
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XS Scuba Valves Service Manual
Remove Reserve Mechanism(23)
A. Grasp the back end of the reserve mechanism(23)
with needle nose pliers and pull straight up.
B. Separate the stainless-steel washer(24) from the
reserve mechanism(23).
NOTE: Sometimes the stainless-steel
washer(24) gets swedged into place on the
reserve mechanism(23) Removal may require the
use of pliers. If the stainless-steel washer(24) is
bent, it must get replaced.
This concludes disassembly of the reserve
mechanism. Before beginning reassembly, perform
the necessary cleaning and lubrication procedures
outlined earlier in this manual.
Reassembly
Prior to assembling the reserve mechanism, it is
important that you fully understand the terminology
involved.
When the J reserve lever(27) is in the
UP position,
we say the reserve is
CLOSED. The internal reserve
mechanism(23) is
DISENGAGED.
When the J reserve lever(27) is switched to the
DOWN
position, we say that the reserve is
OPEN. The internal
reserve mechanism(23) is
ENGAGED.
Knowing which position the internal reserve
mechanism(23) is in will be important when you install
the reserve lever(27).
Prior to inserting the reserve mechanism(23), study the
two images below to understand whether it is in the
“disengaged” position or the “engaged” positioned.
Knowing which position it is in will be important when
you install the reserve lever(27).
1. Install Reserve Assembly(23 & 24).
A. Place the stainless-steel washer(24) on the back
of the reserve assembly(23).
B. Lower the reserve assembly(23), head first, into
the valve body. Be sure that the square portion of
the reserve assembly(23) engages the square cut
out inside the valve body.
CAUTION: The reserve assembly(23) has a
square portion that must engage the square cutout
in the valve body.
2. Install the stem o-ring(8).
A. Install a lubricated stem o-ring(8) on to the
stem(25).
3. Install Stem Washer(9).
4. Install a Lubricated O-ring(17) on to the
Reserve Bonnet(26).
The reserve mechanism is “disengaged” - lever in the up position.
The reserve mechanism is “engaged” - lever in the down position.
