Ford 2009 F-250 Owner's Manual page 210

Seating and Safety Restraints
9. Attach the tether strap (if the
child seat is equipped). Refer to
Attaching child safety seats with
tether straps later in this chapter.
10. Before placing the child in the
seat, forcibly move the seat forward
and back to make sure the seat is
securely held in place. To check
this, grab the seat at the belt path
and attempt to move it side to side
and forward. There should be no
more than one inch (2.5 cm) of movement for proper installation.
11. Ford recommends checking with a NHTSA Certified Child Passenger
Safety Technician (CPST) to make certain the child restraint is properly
installed.
Installing child safety seats in cinch tongue combination lap and
shoulder belt seating positions
(Regular Cab front center and Super/Crew cab rear center
positions)
The belt webbing below the tongue is the lap portion of the combination
lap/shoulder belt, and the belt webbing above the tongue is the shoulder
belt portion of the combination lap/shoulder belt.
WARNING: Always use both lap and shoulder safety belt in the
Regular Cab center seating position if applicable.
Note: Although the child seat illustrated is a forward facing child seat,
the steps are the same for installing a rear facing child seat.
1. Position the child safety seat in
the center seat.
210
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)