2B
Front Wheel Alignment Construction
Front alignment refers to the angular relationship between the front wheels, the front suspension attaching parts and the ground. Generally, the only adjustment required for front wheel alignment is toe setting.
Camber and caster can’t be adjusted. Therefore, should camber or caster be out of specification due to the damage caused by hazardous road conditions or collision, whether the damage is in body or in suspension should be determined.
If the body is damaged, it should be repaired and if suspension is damaged, it should be replaced.
Toe Setting
Toe is the turning in or out of the front wheels. The purpose of a toe specification is to ensure parallel rolling of the front wheels (Excessive toe-in or toe-out may increase tire wear).
Amount of toe can be obtained by subtracting “A” from “B” as shown in the figure and therefore is given in mm (in.).
Toe-in “B” – “A”
: 2 – 6 mm (0.08 – 0.24 in.)
[A]: Wheel top view 1. Forward
Camber
Camber is the tilting of the front wheels from the vertical, as viewed from the front of the vehicle. When the wheels tilt outward at the top, the camber is positive. When the wheels tilt inward at the top, the camber is negative. The amount of tilt is measured in degrees.
Camber “C”
: 0° 30’ ±1°
Caster
: 1° 55’ ±1°
1. Body center [A]: Front view
2. Center line of wheel C: Camber angle