Question 2 of 20
Score: 0/0Why is it important to connect the tractor glad hands to each other or to the dummy couplers when not pulling a trailer?
ExplanationLocking the glad hands together or to the storage bracket keeps dirt, water, and debris out of the air system, preventing possible brake system damage.
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Did you know? Know which line is supply and which is service, and what happens when the emergency line loses air.
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