Volvo 164 1971, Инструкция

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SERVICING
WHEELS AND TYRES
General
The car is fitted with pressed steel wheels
with wheel cap which is bolted to the hub
cap.
The wheels have size 5
1
/2
J 15" F. H. All
wheels are accurately balanced. The tyres
are radial type tubeless with size 165 SR 15
(on certain markets 165 HR 15).
With the 165 SR 15 tyre, the maximum
permissible speed is 185 km.p.h. (115
m.p.h.).
Many tyre makes have a so-called "wear
i ndicator" in the form of a number of
narrow strips running across or parallel to
the tread. When about 1.5 mm (
h
/16") i s left
on the tread, these strips show up and
warn the car owner in good time that the
tyre is showing signs of wear.
Recommended for use in winter are radial
type tyres with size 165 SR 15 (165 SR
380) with or without studs.
Chains must not be fitted on the Volvo 164
wheels since the space between the brake
calipers and wheel rims does not permit
this.
If possible, the wheels should always be
used on the same side throughout their
lifetime. This is particularly important for
studded winter tyres, otherwise it can
50
happen that the studs loosen and fall out
if the tyre is placed on the other side.
Check the tyres at regular intervals for
damage and abnormal wear, also for par-
ticles which can fasten in the tread. Have
them balanced if necessary. Poorly balanc-
ed wheels will rapidly increase the wear
on tyres as well as make for poor travel-
li ng comfort.
38 Check the tyre pressure
Make a habit of checking the pressure
i n 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 59 for the correct air pressure.
Do not forget the spare wheel when
checking 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
i ts load. Normally the air pressure should
only be checked 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.
I f the pressure is too low, the tread
shoulders bear the entire load and wear
down very quickly. Tyres which are insuffi-
ciently inflated also result in difficult steer-
i ng and high fuel consumption. Too high
air pressure means tyre wear along the
centre of the tread. It also tends to make
travelling less comfortable.
Be careful when parking the car next to
the pavement not to damage the tyres
against the pavement kerb.