What's measured?

What must be measured for wheel alignment and constructive geometry corrections?

Setback(Front Axle)

The anteroposterior shift of the position on one side of the front wheel hub. As the tolerance of the platform is narrow enough to be set for the reliable scaling point, we may do that on the posterior wheel house point.

Front wheel lateral offset

Front axle constructive errors are checked horizontally, perimeter flame, lower arms, upper arms and strut upper mounts comparing with the scaling points set on somewhere in the wheel house.

Included angle

The inclination value formed with KPI(King Pin Inclination) or SAI(Steering Axis Inclination) plus camber value. As a simple way, the R/L camber values are compared when steering turns 180 degree clockwise and counterclockwise.

Front cambers

The front camber value should be set evenly on R/L, because the front hub positions R/L are the only reliable scaling points for rear thrust angle that follows after front stage and is the most extraordinary important procedure.

On these steps the steering centric position and precise front toe value may be ignored because they would vary according to rear axle adjustments and they would be fixed as a final steps after the all of adjusting procedures are carried out .

TOOT(Toe Out On Turn)

The front inner wheel must be turned 2-3 degree less than outer frontal wheel that's 20 degree turned. These setting has deeply something to do with the total toe value and the latter is decided after actual driving tests because this angle is affected by dynamic reactions from another wheels.