Automatic Transmission Operation (If Equipped); Connecting And Disconnecting A Trailer With Air Suspension; Suspension Conversions - Ford F-750 Owner's Manual

Connecting and disconnecting a trailer with air suspension

When connecting to a trailer:
• Press the lower portion of the switch and air will exhaust from the air
suspension system.
• After making the connection to the trailer, press the upper portion of
the switch, then raise the landing gear.
When disconnecting the trailer:
• Lower the landing gear, 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.
The upper portion of the switch must be pressed before operating with a
trailer or operating in the bobtail mode.

Suspension conversions

It is not recommended, or approved, that suspension conversions be
performed. However, it is understood that, on occasion, aftermarket
add-on suspensions are installed by others on the truck chassis which
allow operator control for weight transfer from other axles (i.e., air lift
axles).
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.

AUTOMATIC TRANSMISSION OPERATION (IF EQUIPPED)

Main transmission, auxiliary transmission, transfer case and power
take-off (PTO) control shift patterns can be found on a placard or decal
on the driver's sun visor, on the instrument panel or on the shift control
itself.
The main transmission control is used to select the various gear ratios or
speeds of the transmission. Selecting D (Direct Drive), does not change
the transmission gear ratio, but is used where the gear ratios in the main
transmission are adequate to handle the vehicle operation.
2007 F-650/750 (f67)
Supplement (supplement)
Canadian_French (fr_can)
Driving
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