TM 5-3805-260-24The 9S7373 Air Meter Group is used to the air flowthrough the radiator core.9S7373 AIR METER GROUPPressure Cap TestTools Needed:9S8140 Cooling System Pressuring Pump GroupOne cause for a pressure loss in the cooling systemcan be a bad seal on the pressure cap system. Inspectthe pressure cap carefully. for damage to the seal or tothe surface that seals. Any foreign material or depositson the cap, seal, or surface that seals must beremoved.The 9S8140 Cooling System Pressurizing Group isused to test pressure caps and to pi check the coolingsystem for leaks.To check the pressure cap for the pressure makesthe pressure cap open, use the procedure that follows:1.Remove the pressure cap from the radiator.WARNINGIf the engine has been operated and thecoolant is hot, loosen the pressure cap to thefirst and let the pressure out of the coolingsystem then remove the pressure cap.9S8140 COOLING SYSTEM PRESSURIZINGPUMP GROUP2.Put the pressure cap on the 9S8140 CoolingSystem Pressurizing Pump Group.3.Look at the gauge for the exact pressure makesthe pressure cap open.4.Make a comparison of the reading on the guagewith the correct pressure at which the pressurecap must open.NOTE: The correct pressure that makes the sure capopen is on the pressure cap and is a theSPECIFICATIONS.5.If the pressure cap is bad, install a newpressure cap.Radiator and Cooling System Leak TestsTo test the radiator and cooling system for Ieaks,use the procedure that follows:1.Remove the pressure cap from the radiatorWARNINGIf the engine has been operated and thecoolant is hot, loosen the pressure cap to thefirst top and let the pressure out of the coolingsystem then remove the pressure cap.2-70
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