JOSAM laser AM
Measuring system
36
Measurement of camber
For camber measurements the axle must be in
a horizontal position. The wheel should be on
the ground and “loaded”.
Hang the frame gauges, gauge extensions and
measuring scales. Jack up the axle.
Attach the wheel adapter and laser projector.
Run-out of the wheel can be compensated with the
adjustment knobs on the adapter.
Lower the axle to the floor.
If the floor is not flat (level) or if the size of the
wheels is different, check the position of the axle
with a spirit level.
The spirit level can be hung under the axle with a
magnetic hanger, for example, AM98.
Look for a place on the axle that is machined.
Do not measure on the underside of the springs if
there are different size spring spacers between the
axle and the springs.
Adjust unevenness by placing plates under one
wheel until the axle is level.
If the floor is flat (level) check the measurement
between the floor and the hub, bead of rim, or
something similar with the axle lowered and the
wheel on the floor.
Attach wheel alignment gauge AM300/301 onto the
spindle of the wheel adapter through the hole for
camber and caster measurements.
Position the wheel alignment gauge vertically using
the top bubble and lock into place with the lower
knob.
1 Turn the measuring scale so that the measuring
bubble shows a horizontal position.
2 Read the camber value on the outer scale
with the arrow on the foot plate.
Write down the value on the
Test Report Sheet.
Circle whether it is a (+) or a
(-) value.
NOTE!
When taking camber measurements the axle
must be in a horizontal position.
The wheel should be on the floor “under load”.
Measurement of rigid axles
Left
Right
1
2
1
2
