User Manual - Page 292

For F-450 2017.

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When backing down a ramp during boat
launching or retrieval:
Do not allow the static water level to
rise above the bottom edge of the rear
bumper.
Do not allow waves to break higher
than 6 in (15 cm) above the bottom
edge of the rear bumper.
Exceeding these limits may allow water to
enter vehicle components:
Causing internal damage to the
components.
Affecting driveability, emissions, and
reliability.
Replace the rear axle lubricant anytime
the rear axle has been submerged in water.
Water may have contaminated the rear
axle lubricant, which is not normally
checked or changed unless a leak is
suspected or other axle repair is required.
TOWING THE VEHICLE ON
FOUR WHEELS
Emergency Towing
If your vehicle becomes inoperable
(without access to wheel dollies,
car-hauling trailer, or flatbed transport
vehicle), it can be flat-towed (all wheels
on the ground, regardless of the powertrain
and transmission configuration) under the
following conditions:
Your vehicle is facing forward for
towing in a forward direction.
Place the transmission in position N. If
you cannot move the transmission into
N, you may need to override it. See
Transmission (page 205).
Maximum speed is 35 mph (56 km/h).
Maximum distance is 50 mi (80 km).
WARNING
If your vehicle has a steering wheel
lock make sure the ignition is in the
accessory or on position when being
towed.
Recreational Towing
Note: Put your climate control system in
recirculated air mode to prevent exhaust
fumes from entering your vehicle. See
Climate Control (page 145).
Follow these guidelines if you have a need
for recreational towing, such as towing
your vehicle behind a motorhome. We
designed these guidelines to prevent
damage to your transmission.
Two-wheel Drive Vehicles and
Four-wheel Drive Vehicles Equipped
with an Electronic-shift Transfer Case
Do not tow your vehicle with any wheels
on the ground, as vehicle or transmission
damage may occur. It is recommended to
tow your vehicle with all four (4) wheels
off the ground, such as when using a
car-hauling trailer. Otherwise, you cannot
tow your vehicle.
Four-wheel Drive Vehicles Equipped
with a Manual-shift Transfer Case
1. Put the transmission in position N.
2. Put the transfer case in position N.
3. Put the hub locks in the FREE position.
Always make sure that both hub locks
are set to the same position.
289
Super Duty (TFE) Canada/United States of America, enUSA, First Printing
Towing
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