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What’s the fifth-wheel coupling used for?

Question Topic: Vehicle Condition

Saved Questions Question Topic: Vehicle Condition

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To attach air lines to the trailer

To prevent the trailer from jack-knifing

To connect the tractor unit to the trailer

To support the trailer when it's detached

← What should you check for wear or damage on a drawbar unit? How often should the components of the fifth-wheel coupling be inspected? →

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