FCAR FD505 Wheel Alignment System User Manual
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2.7.3 Example
Left front wheel caster angle is set to +0.5°, right front wheel caster angle is set to
+1.5°, then the vehicle deviates to the left.
2.7.4 Caster angle adjustment method
Gaskets, eccentric cams, long holes, strut rods, post rotation, engine bracket
movement, and eccentric ball heads.
2.8 King pin or Steering Axis Inclination
The kingpin inclination angle refers to the connection and plumb line of the ball head
or the ball head at the top of the pillar on the suspension as viewed from the front of the
car. The upper ball is positive inward and vice versa. A reasonable kingpin inclination
angle can make the car drive lightly, reduce the impact of the road through the steering
wheel to conduct the steering wheel, and also have a certain automatic alignment function.
The kingpin inclination refers to the angle at which the kingpin is slightly inward on the
front axle, and its function is to automatically align the front wheel. The greater the angle,
the stronger the effect of the front wheel automatic alignment, however, the more
laborious the steering is, the more the tire wears; on the contrary, the smaller the angle, the
weaker the effect of the front wheel automatically alignment.
