JOSAM laser AM
Measuring system
48
Measurement of caster
Use the wheel alignment gauge AM300/301 and
turn angle gauge AM135.
Left side
(1) Attach wheel alignment gauge AM300/301 on
the spindle of the wheel adapter through the
hole for camber and caster measurement.
Move the wheel alignment gauge toward the
locking pin.
(2) Turn the left wheel 20
° outward utilizing
the turn angle gauge.
(3) Place the wheel alignment gauge vertically
using the top bubble and lock with the
bottom knob.
(4) Rotate the measuring scale so that the
measuring bubble shows a horizontal position.
(5) Place the moveable pointer on 0 at the
inner measuring scale.
(6) Rotate the left front wheel 20
° inward utilizing
the turn angle gauge.
Measurement of front axles
3
5
4
1
8
7
6
2
Left 20° inwards
Left 20° outwards
Place the wheel alignment gauge level using the top
bubble and lock with the lower knob.
(7) Turn the measuring scale so that the
measuring bubble shows a horizontal position.
(8) Read the caster value at the pointer on the
inner measuring scale in degrees ° and
minutes ´.
Write down the value on the Test Report Sheet.
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