Ford 2011 F-550 v.1 Manuel d'utilisateur télécharger pdf (Page 339)

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101

WHEEL LUG NUT TORQUE SPECIFICATIONS

On vehicles equipped with single rear wheels, retighten the lug nuts to

the specified torque at 500 miles (800 km) after any wheel disturbance

(tire rotation, changing a flat tire, wheel removal, etc.).

On vehicles equipped with dual rear wheels, retighten the wheel lug nuts

to the specified torque at 100 miles (160 km), and again at 500 miles

(800 km) of new vehicle operation and after any wheel disturbance (tire

rotation, changing a flat tire, wheel removal, etc.).

Bolt size Wheel lug nut torque*

ft-lb N•m

M14 x 1.5 165 224

* Torque specifications are for nut and bolt threads free of dirt and

rust. Use only Ford recommended replacement fasteners.

It is important to follow the proper wheel mounting and lug nut torque

procedures.

On all two-piece flat wheel nuts,

apply one drop of motor oil between

the flat washer and the nut.

WARNING: When a wheel is installed, always remove any

corrosion, dirt or foreign materials present on the mounting

surfaces of the wheel or the surface of the wheel hub, brake drum or

brake disc that contacts the wheel. Ensure that any fasteners that

attach the rotor to the hub are secured so they do not interfere with

the mounting surfaces of the wheel. Installing wheels without correct

metal-to-metal contact at the wheel mounting surfaces can cause the

wheel nuts to loosen and the wheel to come off while the vehicle is in

motion, resulting in loss of control.

Roadside Emergencies

339

2011 F-250/350/450/550 (f23)

Owners Guide, 1st Printing

USA (fus)

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Ford 2011 F-550 v.1 Manuel d'utilisateur Page 339

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