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'.
P40.20-0323-79
VA = for front axle level
HA = for rear axle level
Example: Front axle level (20 mm or 4.9°) + rear axle level (5 mm or –0.2°) = caster value (4°58' 30')