FCAR FD505 Wheel Alignment System User Manual
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The reasons caused tire abrasion:
1. The front tire outside or inside is worn at the same time, and the front wheel toe is
wrong.
2. The single front tire is worn and the camber angle is wrong.
3. The rear tire is worn, camber angle, toe
Besides,
the tire wear factor which four-wheel aligner cannot detect is bad driving
habit.
1. Tire pressure is too high, tire wear near the tread centerline
2. The tire pressure is too low and both tires are worn at the same time.
3. Chassis part problem
3
）
The
vehicle is floating:
the caster angle is close to zero or the caster is negative.
(1) Steering wheel sinking
1. The caster is too large
2. The camber angle is wrong
3. The suspension parts after the violent bumps are slightly deformed or stiffened.
(2) Poor steering wheel alignment capacity
1.
Caster angle too small
2.
Steering machine problem
3.
Other stiffening caused by incorrect angle.
4.
Tire problem
4
）
Vehicle tail drop when it encounters a slight bump or acceleration, mainly
caused by incorrect rear toe angle.
