Perform Air System TroubleshootingJ1. Air System Loses Pressure DuringOperation/Slow Air Pressure Buildup.KNOWN INFO TEST OPTIONS Visual inspectionREASON FOR QUESTIONIf leak is present, front axlequick release valve is faulty.NOYESFaulty rear gladhand(s).POSSIBLE PROBLEMSAir tanks pressurized.Front axle quick release valveOK.Does air escape from frontrear gladhand(s) whenservice brakes are applied?YESNODoes air escape from frontaxle quick release valve whenservice brakes are applied?WARNINGRead WARNINGon following page.STARTKNOWN INFO Air tanks pressurized.POSSIBLE PROBLEMSFaulty front axle quick releasevalve.Faulty rear gladhand(s).TEST OPTIONS Visual inspectionREASON FOR QUESTIONIf leak is present, front axlequick release valve is faulty.Replace reargladhand(s)(para 11-22).Replace front axle quickrelease valve (para 11-15).Tools and Special ToolsTool Kit, Genl Mech (Item 44 Appendix C)Goggles, Industrial (Item 15, Appendix C)2-1712 Change 1i9. BRAKE SYSTEM LOSES AIR WHEN SERVICE BRAKES ARE APPLIEDINITIAL SETUPEquipment ConditionsEngine shut down (TM 9-2320-365-10).TM 9-2320-365-20-21.2.
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