Ford F-650 2001 Owner's Manual page 179

SERVICING YOUR WHEELS AND TIRES
Wheel assembly
Your vehicle is fitted with hub
piloted wheels and two-element
swiveling lug nuts (20 & 22 mm).
Do not use taper type wheels or ball
seat wheel nuts.
• Do not paint the mating face of the hub/drum.
• Do not paint the two-element swiveling lug nuts or wheel stud.
• Do not allow an excessive thickness of paint to build between the disc
wheel mounting surfaces.
• Do not install disc wheels where the paint has not fully cured.
• At wheel changes, ensure mounting faces are clean and free of rust,
dirt and excess paint.
If fasteners are needed, use only Ford recommended replacement parts.
• To maintain the desired
torque/tension relation between
nut body and flange, it is
necessary to use clean engine oil
meeting Ford specification
WSS-M2C153-G between nut body and flange. Lubricate the nut body
and flange any time a wheel is removed.
The M20 & M22 wheel nuts are right-hand threads. Refer to the
following chart for approved wheel lug nut torque.
Wheel type
10-hole disc
285.75 mm bolt circle
8-hole disc
19.5x6.75 mm bolt
circle
The disc wheel nuts on your vehicle were tightened before delivery.
Recheck torque of nuts at 160 km (100 miles) and 800 km (500 miles) of
new vehicle operation or any time a wheel is removed. Reset to
recommended torque levels.
Maintenance and care
Bolt size
M22 (22 by 1.5 mm)
M20 (20 by 1.5 mm)
Wheel nut torque
610-677 Nm
(450-500 lb-ft)
610-677 Nm
(450-500 lb-ft)
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