Immediate track-difference readings may be taken from the millimetre scale
Extensive measurement range from 835 to 1500 mm, and with extensions up to 2100 mm
Track difference measurable from 0-35 mm
Notes on Use: The vehicle to be tested must be standing on level ground. The front wheels must be set for running straight ahead and have the same tyre pressure. The play in the steering linkage must be removed by pressing the front wheels apart. The track alignment gauge must be set roughly at the axle centre-line between the front tyres in such a manner that the two chain ends contact the ground. The scale is set a “0“. The car is allowed to roll forward approx. one half turn of the wheel, until the chain ends again contact the ground. The track difference may then be read off on the scale.