TM 9-2330-384-14&P
4-43. AIR RESERVOIR REPLACEMENT (Con't).
(9)
Connect air lines to relay quick release valve (see paragraph 4-41).
(10) Connect air lines to ratio relay valve, if front air reservoir was removed (see paragraph 4-42).
(11) Couple semitrailer to tractor (see paragraph 2-12).
(12) Fully pressurize semitrailer air system (see TM 9-2320-273-10 or TM 9-2320-284-10).
(13) Apply a soap solution to check for leaks at all air reservoir fittings and air lines.
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