Ford F-650 2008 User Manual page 208

Maintenance and Specifications
Rotating tires from one wheel position to another is a way often used to
even out many types of irregular wear or to avoid it altogether. Some of
the more effective tire rotation programs are:
• Steer tires that have developed some type of irregular wear pattern
can be rotated to drive axles if rib tires are being used on all wheel
positions. Applying steer tires to a drive position will often clean them
and they can be moved back to the steer axles or run out to re-tread
stage on the rear axle.
• Another rotation possibility for fleets with rib tires in all wheel
positions is to break in the new steer tires in the drive axle positions,
then move them to steer axles. This will wear away tread rubber
relatively quickly in the early life of a tire when it is most likely to
develop an unusual wear pattern.
• Drive axle tires may be placed on the other end of the same axle so
that direction of rotation is reversed. This is often helpful if a heel and
toe or alternate lug wear pattern has developed.
Irregular wear can be minimized by:
• Using the right inflation pressure for the load being carried.
• Maintaining proper front wheel alignment - especially toe-in - to
specifications.
• Maintaining proper tire and wheel balance.
• Maintaining shock absorbers and suspension components.
Use of tire chains
Refer to chain manufacturer's recommendation for correct tire chain
usage, installation and removal.
208
2008 F-650/750 (f67)
Supplement