Ford 2007 F-650 Owner's Manual page 73

Seating and Safety Restraints
Air-Ride seat (if equipped)
Move handle to the left to move seat
forward or backward.
Push up on the switch to raise the
seat height.
Press down on the switch to lower
the seat height.
To reduce the risk of excess slack in the belt system, always
adjust the seat height before fastening the seat belt.
Press up on the switch to increase
the firmness (lumbar support) of
the seatback.
72
2007 F-650/750 (f67)
Supplement
USA (fus)