Most Commonly Encountered Vehicle Alignment Faults - SICE A98 Manuel D'instructions

It is highly recommended not to use the Personal Computer for games or with other
software based on unauthorised copies, to avoid reducing the safety of plants and persons.
This is mandatory to avoid any possible contamination from computer viruses.
In any case, it is recommended to check the compatibility of all original software not supplied by
the builder with an authorised Technical Service Centre.
Do not remove the Personal Computer from its installation position to avoid any damage
to the connections.

MOST COMMONLY ENCOUNTERED VEHICLE ALIGNMENT FAULTS

Cause: tyre side slip.
Invert the position of the wheels on the same axle:
• if movement is inverted, turn one of the two wheels where the position has been inverted, on its rim.
• if movement is not inverted, invert the position on the other axle.
• if this double inversion procedure fails to solve the problem, check that camber values on the
same axle are identical, make the same comparison for caster values.
Possible causes:
• mechanical backlash.
• ROC has been skipped or performed incorrectly.
• wheel alignment performed with the steering wheel off centre.
• front wheels adjusted with respect to the axis of symmetry instead of the thrust axis.
• Manual procedure:
- The steering box range must be centred by counting the number of steering wheel
revolutions from full lock to full lock.
- Position the steering wheel in the centre of its range and perform the normal procedure for
adjustment of the front half-toe values.
- Position the steering wheels correctly, disassembling it from the steering column if needs be.
Steering wheel is excessively stiff with vehicle stopped.
Possible causes:
• excessive caster.
• incorrect king pin angle.
• excessive camper.
• Low tyre pressure.
Steering wheel return is too low or too forceful when driving.
• Incorrect caster value - adjust.
Vehicle tends to wander to the left or the right.
Steering wheel not aligned with vehicle trajectory.
Disparity between steering locks.
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