TM 9-2330-390-14&P1-18. BRAKE SYSTEM (Con’t).FRONT DOLLYREAR DOLLYKey1ComponentIntervehicular AirbrakeHosesDescriptionRoute service and emergency air from towing vehicle to front dolly.2Pressure Protection ValveActs as a check valve. Allows air to flow only one way-fromemergency line to air reservoir.3Relay Emergency ValveWith emergency line and air reservoir pressurized, senses servicebrake pressure from towing vehicle and applies or releases air toservice airbrake chambers to apply or release brakes.1-34
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
