Ford F-650 2015 Owner's Manual page 164

Connecting and Disconnecting a Trailer with Air Suspension and
Air Suspension Dump Switch
When connecting to a trailer:
• Press the lower portion of the switch to exhaust air from the air
suspension system.
• Press the upper portion of the switch, and then raise the landing gear
after making the connection to the trailer.
When disconnecting the trailer:
• Lower the landing gear, and then press the lower portion of the
switch.
• Disconnect the brake hoses, trailer-side and rear light connectors,
then pull the release lever on the fifth wheel.
You must press the upper portion of the switch before operating with a
trailer or operating in the bobtail mode.
Suspension Conversions
WARNING: When operating a loaded vehicle, the driver must
keep all adjustable axles on the ground at all times, supporting
their share of the vehicle's load. Failure to do so can overload other
axles, tires, wheels, springs, steering components, brakes and frames,
resulting in early component failure, loss of vehicle control, possible
property damage and personal injury.
We do not recommend performing, or approve of, suspension
conversions. However, we understand that, on occasion, others install
aftermarket add-on suspensions on the truck chassis that allow operator
control for weight transfer from other axles (such as air lift axles).
2015 F-650/750 (f67)
Owners Guide gf (ownloose), 1st Printing, December 2013
Canadian_French (fr_can)
Driving Aids
I n f o r ma t i o n P r o v i d e d b y :
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