Coupling & Uncoupling第 8 / 60 题
After the trailer is securely coupled and supported by the tractor, what should you do with the landing gear?
a.Leave it partway down for extra support
b.Raise it only halfway
c.Leave it fully down until you reach the destination
d.Raise it fully and secure the crank handle
解析
Once the trailer weight rests on the tractor, raise the landing gear all the way up and secure the crank handle in its holder. Landing gear left partway down can catch on railroad tracks or uneven surfaces. A loose crank handle can strike someone or damage equipment.
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同考点相关题目
- After the kingpin has locked into the fifth wheel, how should you test that the coupling is secure?
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- Before supplying air to the trailer, why should you check the trailer brakes are set?
- When you push the trailer air supply valve in (supply air to trailer), what should happen?
- During uncoupling, when should you lower the landing gear?