During uncoupling, when should you lower the landing gear?
a.After pulling the tractor away from the trailer
b.After disconnecting the air and electrical lines but before unlocking the fifth wheel
c.Before securing the trailer
d.Landing gear does not need to be lowered during uncoupling
Explanation
The landing gear should be lowered after disconnecting the air and electrical lines but before unlocking the fifth wheel and pulling out. The landing gear supports the front of the trailer and must be down before the tractor is removed to prevent the trailer from tipping.