Middle | |
All are equally likely to turn over | |
Rear | |
Front |
The coupling surface of the trailer is just above the middle of the tractor fifth wheel | |
The kingpin is just below the middle of the tractor fifth wheel | |
The coupling surface of the trailer is just below the middle of the tractor fifth wheel | |
The trailer dolly wheels are just barely off the ground when fully extended |
Activate air supply to the trailerarray(s) and leave the trailer brakes unlocked | |
Be sure not to activate air supply to the trailerarray(s) to prevent damage to the air delivery system | |
Pull forward to test the strength of the air line connection | |
Activate air supply to the trailerarray(s) then lock the trailer brakes |