Saab 96 - Tire Pressure; Interchanging Wheels and Tires; Front Wheel Alignment

Tire Pressure
Check the tire pressure once a week with a reliable pressure gauge
and follow carefully the directions on page 9.
A tire with correct pressure makes road contact with its entire
tread. Uniform wear and effective traction is thus achieved.
Tires with too high pressure cause a bumpy ride and wear exces
sively in the middle of the tread, where cracks may occur in the bot
tom of the pattern grooves.
Tires with too low pressure are worn most on the outer edge of
the tread. They impair the roadholding by causing the car to sway
when cornering, and cracks may occur on the tire sides.
Fig. 24. Tightening Wheel Bolts
Interchanging Wheels and Tires
The front tires are subjected to heavier wear than the rear ones,
and after a certain period of driving it is therefore advisable to shift
the wheels, so that the least worn tires are placed in front. Note that
some tires may have a certain rotation direction, which must be
maintained. By shifting the wheels the life will be approximately the
same for all the tires.
Fig. 24 shows the tightening sequence of the wheel bolts.
Front Wheel Alignment
It is essential that the alignment of the front wheels be correct. Wrong
alignment impairs the road characteristics and it may be tiring and
difficult for the driver to manoeuvre the car. The abnormal wear on
tires and steering mechanism will result in increased tire and repair
expenses.
To avoid incorrect front wheel alignment, the car should be taken
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