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The valve stem is the heavy
point
of the tube and should always be
placed at this
mark.
All tires and tubes vary somewhat
in
their individual amounts of
off·balance and are, therefore, matched at the factory to counter·
balance each
other.
Due to irregularities in tread wear caused by sudden brake
applications, misalignment, low inflation pressures, tube
or
tire
repairs, etc., a tire and tube assembly can lose its original balance.
If a disturbance is felt in the steering wheel due to the action of
the front wheels, or if pounding, tramping, or shimmying is
expe·
rienced while driving, one of the first items to check is the
static
balance of tires and
wheels.
TO CLEAN WHlTE
SIDEWALLS-Use
soap, warm water and stiff
brush to remove road grime and curb dirt from white
sidewall
tires.
Use a fine grade of steel wool for severe cases. Do not use gasoline,
kerosene, or any oil product
that
will discolor the sidewalls or rot
the
rubber.
TIRE SWITCHING-
Switching
tires
from
one
poSition to another on the car usually prolongs
tire life. If you have four
good
tires, you
might
consider
switching
at regular intervals by cross-
changing them from right front to left rear and
left front to right rear
.
With
five
good tires,
however, tire switching as shown in the
dia-
gram saves tires
by
equalizing wear and
"exercising" the spare.
By
having your tires
switched every
4,000 miles and using the
spare, you can drive 20,000 miles and only put 16,000 miles wear
on each of the
tires.
SAVING TIRES WHEN YOU
DRIVE-Ma ximum tire life
can
be
secured by careful a ttention to
d
riving habits and a few
essentia
l
details of
service.
We have listed below the most importa"t points to
help you secure this maximum.
1.
Keep tires properly
inflated
at all
times.
2
,
Avoid spinning
wheels
when
starting.
3
.
Avoid sudden
slops.
4
.
Turn
corn ers at
mode
rate
spe eds.
S.
Steer around
bumps, ruts,
or minor
obstructions
in
the road.
6
,
Keep out
of
car
tracks.
7
. Do
not bump or scrape
the
curb.
a.
Keep the front
wheels
in
prope
r alignment.
(See page
55.)
9
.
Keep
brakes adjusted.
Uneven brake adjustment causes
une
ven
tire
wear.
10. 'Don'
t
for get
to che ck the
pressure of
the
spare
tire once
in
a while.
II
. Interchange
tire
s every
4,000
miles, (See
above.)
47
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