FORD 2012 F-550 v.3 - Manual (Page 205)

3. While holding the shoulder and
lap belt portions together, route the
tongue through the child seat
according to the child seat
manufacturer’s instructions. Be sure
the belt webbing is not twisted.
4. Insert the belt tongue into the
proper buckle (the buckle closest to
the direction the tongue is coming
from) for that seating position until
you hear and feel the latch engage.
Make sure the tongue is latched
securely by pulling on it.
5. Put the safety belt in the
automatic locking mode. To do so,
grasp the shoulder portion of the
belt and pull downward until all of
the belt is pulled out.
6. Allow the belt to retract to remove slack. The belt will click as it
retracts to indicate it is in the automatic locking mode.
Seating and Safety Restraints
205
2012 F-250/350/450/550 (f23)
Owners Guide, 3rd Printing
USA (fus)