TM 9-2320-272-10
2-3. CHASSIS CONTROLS AND INDICATORS (Contd)
Key
Item and Function
1
TRAILER POWER OUTLET RECEPTACLE provides electric power for trailer.
2
TOWING PINTLE HOOK is opened to attach trailer towing bar.
3
TRAILER SERVICE AIR COUPLING is connected by an air coupling hose to the service coupling of a trailer or
vehicle to be towed. This connection permits operator to engage brakes of the towed load when pressing brake
pedal of the towing vehicle.
4
TRAILER AIR VALVE HANDLES are turned to release compressed air to trailer brake system.
5
EMERGENCY AIR COUPLING is connected by an air coupling hose to the emergency coupling of a trailer or
vehicle to be towed. This connection permits towing vehicle to charge the brake system of a trailer or disabled
vehicle with air.
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