TM 10-4610-215-24TM 08580A-24/23-22. R.O. PRESSURE GAGE (psig).a. General.TO verify serviceability or detect mechanical failure, test the R.O. PRESSURE psi gage. Thisparagraph describes the inspection, cleaning, and tests to determine serviceability and accuracy of the gage.b. Removal.If necessary, remove R.O. pressure psi gage in accordance with paragraph 2-67.c. Cleaning.(1) Clean gage crystal.(2) Clean pipe connector threads.WARNINGDrycleaning solvent Fed. Spec. P-D-680 is potentiallydangerous. Avoid repeated and prolonged breathing of vaporsand skin contact. Do not use near open flame, arcing equipmentor other ignition sources. Always wear protective clothing andeyewear.(3) Clean gage assembly with cleaning solvent Fed. Spec. P-D-680.d. Inspection.(1) Inspect exterior coating and case metal for signs of corrosion resulting from spray of water containingsalts and other chemicals.(2) Inspect for leaks in shock-absorbing integrity.(3) Inspect for watertight integrity.(4) Inspect connections to pressure system, particularly threaded connections, machined socket, andflared ends.e. Pressure Test.(1) Using a dead-weight gage tester (accurate to 1/10 of 1%), test gage at 300,600,900, 1200, and 1500psi (21 .09,42 .18,63.28,84.37, and 105.47 kg/cm2).3-103
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