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Maintenance (Cont.)
Leak test check valves at least every three
months, as follows:
1. Shut off fuel cylinder valve and
disconnect hose from check valve.
2. Set oxygen regulator to 5 PSI and
open all gas valves on torch and
cutting attachment.
3. Plug torch tip and check for reverse
flow to fuel gas check valve. Use
soapy water or immerse in water to
check for leak. Set pressure to zero
after test.
4. Reconnect fuel gas hose and
disconnect oxygen hose.
5. Set fuel cylinder valve to 5 PSI and
inspect for leaks in oxygen check
valve.
Replace leaking
check valves or
have serviced by a qualified technician.
6. Reconnect hose and purge system
before use.
HOSES
Examine the hoses
carefully before
each use. If cuts, burns, worn areas or
damaged fittings are found, replace the
hose.
!
CAUTION
!
WARNING
ACETYLENE CYLINDERS
If horizontal
stowage is necessary,
or an acetylene cylinder is inadvertently
left lying in a horizontal position, it must
be placed in an upright position for a
minimum of two hours before it can be
used. Otherwise, acetone in which the
acetylene is dissolved will be drawn out
with the gas. By dissolving acetylene in
acetone, pressures above 15 PSIG are
safely attainable. If enough acetone is
removed, the cylinder may become
unstable and explode.
!
DANGER
Portable Oxy-Fuel Welding and Cutting Outfit
Notes