JOSAM laser AM
Measuring system
9
Turn angle gauge AM135
Hang frame gauge, gauge extensions and
measuring scales.
Jack up the axle.
Attach wheel adapters and laser projector.
Run-out of the wheel can be compensated with the
adjustment knobs on the adapter
Place the turn angle gauges on the floor for both
the left and right sides, with a centered scale and
in the middle of the wheel.
Position left, and alternatively, right wheel in a
straight ahead position with the laser projector.
Equal values on the front and rear measuring
scales.
Align turn angle gauges on both sides with laser
dot on the 0-line of the measuring scale. Move
measuring scale along the profile and check at
both ends that the laser dot hits the 0-line.
Turn wheel
Align the laser dot on the 0-line (1) of the
measuring scale.
Move measuring scale until laser dot hits the
intersectional point of the 0-line (2).
Align the laser dot on the degree scale and read
the value.
