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Question:
Never use the hand valve for parking because all the air might leak out, unlocking the brakes (in trailers that don’t have spring brakes). Always use the parking brakes when parking. [California Commercial Driver Handbook]
Comments
Alkam 2126
4 years ago
It a great app to study for your CDL tests
Cbow33
4 years ago
Great app
Livvy2u
4 years ago
Mom