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Question:
If a converter dolly has spring brakes, you release the brakes by which way?
A
doing both of these
explanation
In order to move the dolly and attach the converter dolly to the first semitrailer, the brakes must be released. The air tank petcock (valve) or the parking brake control on the dolly can be used to activate the spring brakes if the dolly has them.
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2 years ago
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