Measure front and rear axle level and obtain the front axle caster value (measured with wheels turned 20°) from the table, tolerance 30', max. difference between left and right 30'.
P40.20-0326-79
VA = for front axle level
HA = for rear axle level
Example: Front axle level (20 mm or 0,5°) + rear axle level (5 mm or 0.6°) = caster value (5°22' 30')