Operator`s manual

INSTRUMENTS AND CONTROLS
91
앫 Park the vehicle and apply parking brake for tractor trailer.
앫 Put gearshift in neutral and chock trailer wheels.
앫 Lower trailer landing gear to ground.
앫 Disconnect air/electric lines to trailer.
앫 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.
앫 Release parking brake and drive tractor 12 inches away from the
kingpin.
앫 Deflate air suspension by pressing bottom of suspension switch.
앫 After suspension lowers, pull clear of trailer and reinflate
suspension. See “Trailer Coupling Procedures” on page 360.
앫 The fifth wheel kingpin lock will only relock if you follow the
complete recoupling procedures. See “Trailer Coupling
Procedures” on page 360.
For more information, refer to “FIFTH WHEEL INSTRUCTIONS” on
page 354.
OR
Transmission Retarder
For more information about the transmission retarder, see
“Transmission Retarder, VHD Only” on page 334.
vn-vhd.bk Page 91 Tuesday, July 1, 2008 9:44 AM