TOWING VEHICLE TO DOLLY CONNECTIONS
Control or Indicator
Used to secure dolly to the towing vehicle if
dolly tow bar should accidentally become unhooked.
Used to attach the dolly to the towing vehicle.
Used to carry electrical power from towing
trical cable (front
vehicle to front dolly.
Used to provide emergency brake control from
gency brake airhose
towing vehicle to the dolly.
Used to connect service brake system of towing
vehicle to the dolly.