Wheels And Tyres - Volvo 164 Owner's Manual

WHEELS AND TYRES

General
The car is fitted with pressed steel wheels
with wheel cap, which is screwed to the
hub cap. Wheel rims are of size 5
F.H. All wheels are accurately balanced.
The tyres are 175 HR 15 tubeless.
The maximum permissible speed for 175
HR 15 tyres is 210 kmph (130 mph).
Radial tyres should always be used when
replacing and when changing over from
summer to winter tyres.
Throughout its lifetime, the car tyre should
i f possible have the same direction of rota-
tion. In other words, it should be kept on
the same side of the car all the while in use.
This is of particular importance for studded
snow tyres, since a change in direction of
rotation can cause the studs to loosen.
Studded snow tyres should also have a
running-in period of between 500-1000 km
(300-600 miles). During this period avoid
hard driving in bends and high speeds, also
hefty braking and hasty acceleration.
Rapid links must not be fitted on the Volvo
164 since the space between the brake
calipers and wheel rims do not permit this.
1
/2 J 15"
Check the tyres at regular intervals for
damage and abnormal wear, also for stones
which can fasten in the tread. Have them
balanced if necessary. Poorly balanced
wheels will rapidly increase the wear on
tyres as well as make for poor travelling
comfort.
The tyres have a so-called "wear indicator
i n the form of a number of specially pat-
terned sections in the tread. When about
1.5 mm (1/16") is left on the tread in these
sections, these sections show up and warn
the car owner in good time that the type is
showing signs of wear.
SERVICING
38 Checking the tyre pressure
Make a habit of checking the pressure in
the tyres regularly. The simplest way to do
this is to check the pressure at a service
station while filling up with fuel. See ' page
67 for the correct air pressure.
Do not forget the spare wheel when check-
i ng the air pressure.
During driving, the temperature of the tyres
rises and also the air pressure in relation
to the speed of the vehicle and its load.
Normally the air pressure should only be
corrected when the tyres are cold. When
the tyres are warm, a change in pressure
should take place only when air must be
pumped into the tyres.
Excessively low air pressure is one of the
most common reasons for tyre wear. Tyres
which are insufficiently inflated also result
i n difficult steering and high fuel consump-
tion. Too high air pressure tends to make
for poor riding comfort.
Be careful when parking the car next to the
pavement not to damage the tyres against
the pavement kerb.
55