Regulators are precision-built instruments and should be han-
dled as such. Minor, repairs such as seat or diaphragm replace-
ment may be made on the spot by qualified personnel.
The following are hints for good maintenance practice.
a . Test the regulator periodically with soapy water to
b. For replacement, use only those AIRCO parts designed
for your regulator.
D o not, at any time, disturb the sealed-in
pressure setting screw of the regulator. If this screw
is tampered with, gas flow may not be accurate.
c. When using a vise or wrench on the regulator, use only
enough pressure to hold the part. Be careful not to score or
distort the body, threads, or other parts.
d. Failure to replace any of the parts may cause a hazard-
e. If it is necessary to replace the pressure gauge, the inlet
nut, and the gland, tin the gauge threads or wrap them with
teflon tape. Use them sparingly and take care to prevent them
from going past the end of the first thread.
f. Before reassembly, always remove dirt or grease, which
is not readily removable with a lint-free cloth, from the body
and parts with a cloth dampened with trichloroethylene or
Do not allow rubber parts to be exposed
to either of these solvents for longer than a few seconds.
TRICHLOROETHYLENE OR ME THYLC HLOROFORM
(1, 1, 1-TRICHLORETHANE) MAY HAVE TOXIC
BREATHING THE FUMES.
AVOID PROLONGED CONTACT WITH THE SKIN.
PROVIDE PROPER VENTILATION.