Volvo VNL 780 Operator's Manual page 364

354 OPERATION
Using the following procedures, inspect the equipment before coupling to a trailer:
Make sure the fifth wheel is properly lubricated and the jaw is in the open position.
WARNING
If the jaw is not in the open position, use
a pry bar to rotate the jaw to the open
position. The lock is spring loaded. Keep
hands away to avoid injury.
Use a pry bar to open the fifth wheel jaw, if necessary.
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