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Module 3: Coupling and Uncoupling

Uncoupling Procedure

5. Slowly drive tractor from under trailer.

EASE OUT FROM UNDER THE TRAILER. Pull forward
slowly until the fifth wheel clears the kingpin. Stop with the truck frame still under the trailer and allow the air suspension to adjust, then drive carefully away from under the trailer.

WARNING: Do not dump suspension airbags prior to opening the fifth wheel lock. This will cause a difficult to open condition.

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