Model 100
Caster is determined from difference in camber at 20° left and 20° right wheel lock. Caster is negative if the left wheel at right lock shows larger camber than at left lock. Caster is considered positive if left wheel at left lock shows a larger camber than at right lock. Adjust by loosening lock nut "D" and turning eccentric bolt "E". Be sure to adjust equally on both sides and retighten lock nut (see Figure).