FORD 2015 F-550 v.1 - Manual (Page 32)

The safety belt pretensioners at the front
seating positions are designed to tighten
the safety belts when activated. In frontal
and near-frontal crashes, side crashes and
rollovers, the safety belt pretensioners may
be activated alone or, if the crash is of
sufficient severity, together with the front
airbags.
FASTENING THE SAFETY
BELTS
The front outboard and rear safety
restraints in the vehicle are combination
lap and shoulder belts.
E142587
1. Insert the belt tongue into the proper
buckle (the buckle closest to the
direction the tongue is coming from)
until you hear a snap and feel it latch.
Make sure the tongue is securely
fastened in the buckle.
E142588
2. To unfasten, press the release button
and remove the tongue from the
buckle.
Using the Safety Belt with Cinch
Tongue (Front Center and Rear
Center Seats Only)
The cinch tongue will slide up and down
the belt webbing when the belt is stowed
or while putting safety belts on. When the
lap and shoulder safety belt is buckled, the
cinch tongue will allow the lap portion to
be shortened, but pinches the webbing to
keep the lap portion from getting longer.
The cinch tongue is designed to slip during
a crash, so always wear the shoulder belt
properly and do not allow any slack in
either the lap or shoulder portions.
Before you can reach and latch a lap and
shoulder belt having a cinch tongue into
the buckle, you may have to lengthen the
lap belt portion of it.
E162708
1. To lengthen the lap belt, pull some
webbing out of the shoulder belt
retractor.
2. While holding the webbing below the
tongue, grasp the tip (metal portion)
of the tongue so that it is parallel to the
webbing and slide the tongue upward.
3. Provide enough lap belt length so that
the tongue can reach the buckle.
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Super Duty (), enUSA
Safety Belts