JOSAM laser AM
Measuring system
46
Measurement of front axles
V = Vertical line
A = Axle angle
V
A
Measurement of caster
Caster
The inclination of the kingpin, backward or forward, as seen from the side.
When the kingpin's upper part inclines backward: it has positive (+) caster.
When the kingpin's upper part inclines forward: it has negative (-) caster.
Measure in degrees and minutes from the vertical line.
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