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28
CYLINDER VALVE MAINTENANCE
PROCEDURES
NOTE: Before performing any disassembly, refer to the
exploded parts drawing which references all mandatory
replacement parts. These parts should be replaced with
new and must not be reused under any circumstances
regardless of the age of the product or how much use it
has received since it was last serviced.
CAUTION: Use only a plastic or brass o-ring removal
tool when removing o-rings to prevent damage to
the sealing surface. Even a small scratch across an
o-ring sealing surface could result in leakage. Once
an o-ring sealing surface has been damaged, the part
must be replaced with new. DO NOT use a dental pick
or any other steel instrument.
Cylinder Valve Disassembly
1. Open the cylinder valve to ensure cylinder (54) is fully depressurized.
Secure the cylinder with a strap wrench and remove the cylinder valve
with a 27mm (1-1/16 inch) crowfoot and flex handle drive.
2. Remove the o-ring (53)
from the valve body (52).
3. Use the modified screwdriver to unscrew the handwheel nut
(39). Remove the spring (40), handwheel (41) and washer (42)
from the spindle (47).
Odyssea (Export) Technical Manual
4. Place the valve body (52) in a vise. Unscrew the valve seat
adapter (50) from the valve body using a 3/8" flex handle
drive and 5mm hex key adapter.
CAUTION: Loctite 242 is used to hold this part in place
in addition to the torque applied during assembly.
NOTE: If the valve seat adapter does not loosen, use a heat
gun to heat up the body and adapter to loosen the adhesive.
CAUTION: Do not damage the internal surface of
the valve seat adapter.
5. Remove o-ring (51) from the valve seat adapter (50). Remove
the old blue Loctite from the valve seat adapter and valve body (52).
6. Secure the valve body (52) in a vise, use a 22mm (7/8 inch)
socket and 3/8" flex handle drive to remove the valve plug (43).
Remove the o-ring (44) from the valve plug.
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