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Question:

You supply air to the trailer tanks by:

A Pushing in the trailer air supply valve.

explanation

The trailer air supply control on newer vehicles is a red eight-sided knob, which you use to control the tractor protection valve. You push it in to supply the trailer with air, and pull it out to shut the air off and put on the trailer emergency brakes.

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Alkam 2126

4 years ago

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Cbow33

4 years ago

Great app

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Livvy2u

4 years ago

Mom

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