1930 Cadillac Brochure Front Cover - GM Heritage Center
1930 Cadillac Brochure Front Cover - GM Heritage Center
1930 Cadillac Brochure Front Cover - GM Heritage Center
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30 CADILLAC OPERATOR'S MANUAL<br />
EQUIPMENT 31<br />
Remove the tire with rim, by pulling it out at the bottom and then lifting<br />
it off the carrier.<br />
To place a tire and rim on the carrier, reverse the above order. After<br />
tightening the clamping screw, unlock the Jock and put it into place.<br />
Spare Wheel Carrier<br />
To remove a spare wheel from the carrier, unlock the Jock and take it out,<br />
using the key as a handle. Then unscrew the clamping screw underneath the<br />
lock, after which the large dust shield can be removed and the wheel taken<br />
off the carrier.<br />
To reinstall a spare wheel, mount it on the carrier, pJace the large dust<br />
shield in position and tighten the clamping screw. Then snap the lock back<br />
into place.<br />
These instructions apply both to spare wheel carriers on the rear of the car<br />
and to carriers in the front fender.<br />
Truing Up Rim<br />
If a rim on a wood wheel does not run true, it may be trued up in the<br />
following manner: Rotate the wheel slowly and mark the part that runs<br />
farthest out from the face of the<br />
wheel. Loosen slightly the nuts<br />
diametrically opposite the mark, and<br />
then tighten the nuts on the marked<br />
side. Test the wheel again, and if<br />
it still does not run true, repeat the<br />
operation.<br />
Figure 15. When spare tires arc carried<br />
on the fenders, the lock must be removed<br />
after which the screw can be taken out<br />
and the wheel lifted from the carrier.<br />
Use of Jack in Changing Tires<br />
When a tire is "flat," the axle is<br />
not always far enough above the<br />
ground to permit placing the jack<br />
directly under the axle. It is then<br />
necessary to make use of the adjustable<br />
shoulder which engages with<br />
teeth on the side of the jack.<br />
The illustrations in Figure 16 show how the adjustable shoulder should<br />
be placed under the axles.<br />
Changing Tires<br />
If an inflated tire is always<br />
carried on the spare rim or<br />
wheel, the driver will seldom<br />
or never have to disassemble<br />
a tire from the rim. In case<br />
of tire trouble, it is then<br />
merely necessary to remove<br />
the rim or wheel with the flat<br />
tire and then install the spare<br />
in its place. Illustrated directions<br />
for performing this work<br />
on standard wood and on wire<br />
wheels are given on pages 32<br />
and 33- Disc and demountable<br />
wood wheels are changed in<br />
the same manner as wire wheels<br />
except that the hub caps should<br />
not be removed.<br />
Tire Balancing Marks<br />
The tires are balanced to<br />
offset the weight of the valve<br />
stem. If a tire is removed, it<br />
must be re-installed in its<br />
original position with respect<br />
to the rim; otherwise the tire<br />
and wheel will be unbalanced.<br />
A small red square is accordingly<br />
branded in the<br />
rubber on the side of each tire.<br />
This mark must always be in<br />
line with the valve stem.<br />
Figure 16. To jack up the car, it is necessary to<br />
have the jack in the proper position under the axle.<br />
The correct position for the front axle is shown<br />
above and for the rear axle, below.
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