Aluminum Wheels
Radial Run Out: 0.8 mm (0.03 in)
Face Run Out: 0.8 mm (0.03 in)
Steel and Aluminum Wheels
Free Radial Run Out: 1.5 mm (0.06 in)
4.4.4.7 Tire Abnormal Wear Diagnostic
There are many reasons for abnormal and premature tire wear, including the inflation pressure is incorrect, no regular tire rotation,
bad driving habits or the wheel alignment is incorrect. If the tire wear and there is a need to re-adjust the wheel position, as long as
within the specifications, make sure to adjust the toe as close to zero as possible.
If there are following conditions, rotate tires:
A. Front tire wear is different from the rear tire.
B. Left front and right front tire wear is different.
C. Left rear and right rear tire wear is different.
If there are following conditions, check the wheel alignment:
A. Left front and right front tire wear is different.
B. Any front tire uneven tread wear.
C. Front tire tread has feather scratches.
Several typical tire wear situations are shown as following:
1. Eccentric Worn
FE04-1016b
Reasons:
A. Axles, bearings and other rotating parts malfunction.
B. Braking system.
C. Emergency start, emergency braking.
D. Uneven wheel weight center.
E. Tire and wheel rim sizes do not match.
Suspension System
Wheels and Tires
4-65
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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