Volvo VNL 780 Operator's Manual page 104

94 INSTRUMENTS AND CONTROLS
16. Fifth Wheel Touch Lock.
DANGER
Activation of the kingpin lock release
switch ONLY unlocks the kingpin
latch mechanism. To relock the latch
mechanism, you MUST pull forward and
then back up to re-engage the kingpin
lock mechanism. Failure to follow these
instructions can result in separation of the
trailer from the tractor causing personal
injury or death.
•
Park the vehicle and apply parking
brake for tractor trailer.
•
Put gearshift in neutral and chock trailer
wheels.
•
Lower trailer landing gear to ground.
•
Disconnect air/electric lines to trailer.
•
To release the fifth wheel kingpin lock,
push the switch up. This will release the
locking mechanism. Once activated, the
switch will not relock the fifth wheel
kingpin locking mechanism.
•
Release parking brake and drive tractor
12 inches away from the kingpin.
•
Deflate air suspension by pressing
bottom of suspension switch. After
suspension lowers, pull clear of trailer
and reinflate suspension. See "FIFTH
WHEEL INSTRUCTIONS" page 347.
•
The fifth wheel kingpin lock will only
relock if you follow the complete
recoupling procedures. See "FIFTH
WHEEL INSTRUCTIONS" page 347.
For more information, refer to "FIFTH
WHEEL INSTRUCTIONS" page 347.
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