Figure 22
71743
Fit the rule (4) on the front wheels, checking the slide (2) is
exactly in the middle of the two annular grooves of the shaft (3).
Fit the measuring units on the rear wheels as described above
for the wheels of the front axle.
Project the light signal on the rule (1) and note down the value
shown.
Repeat this measurement on the other wheel and check that
the value shown is the same as the one noted down; if it is not,
thoroughly check over the assembly of the rear axle on the
vehicle: if you find no trouble, check the chassis has not lost its
shape, following the procedures described in the ”Bodywork
- Chassis” section.
38671
Figure 23
VEHICLE WHEEL GEOMETRY WITH
CENTRAL ADDED AXLE (6X2 C)
Figure 24
Figure 25
Detach the swivel head (2) of the rear longitudinal tie rod (3)
from the steering lever (1) of the central axle with the
extractor 99347068.
38657
38658
Lift the vehicle, position the oscillating plates (1 and 4) of the
device 99305123 under the wheels of the steering axles,
locking them with the specific clamps (2) and place the boards
(3) under the rear wheels.
Provisionally fit the swivel head (2) back onto the lever (1) and
screw down the fixing nut without fully locking it.
!
Check the distance between the centre distances of
the swivel heads of the tie rod (3). It must be
832
±10 mm. If it is not, loosen the screw fixing the
collar and turn the tie rod (3) appropriately.
Checking rear axle alignment
.
118
WHEEL GEOMETRY
S
TRALIS
AT/AD
Base - January 2003