TM 5-3895-370-14&P4-56. COOLANT SYSTEM DRAIN/FILL (CONT).(2)Open petcock (1) on radiator (2) and draincoolant in suitable container.(3)Remove plug (3) from inlet connection (4)to allow remaining coolant to drain frompetcock.(4)Close petcock (1) and install plug (3).WARNINGCorrosion inhibitor contains alkali.Do not get in eyes; wear goggles/safety glasses when using. Avoidcontact with skin. In case of contact,immediately wash area with soap andwater. If eyes are contacted, flusheyes with large amounts of water forat least 15 minutes and get immediatemedical attention.(5)Fill radiator (2) with 5 gal (18.9 l) cleanwater and 0.75 lb (0.34 kg) sodiumcarbonate. Install radiator cap (5).(6)Run engine five minutes after coolanttemperature reaches 180 degrees F (82degrees C).(7)Repeat steps (1) through (4).(8)Repeat steps (5) through (7), adding cleanwater only to flush coolant system. Do notadd sodium carbonate.(9)If draining water still appears dirty, repeatstep (8) until water appears clean.(10)Install radiator cap (5).4-140
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