1930 Cadillac Brochure Front Cover - GM Heritage Center

Fig. Ha. Remove the hub cap with
the wrench in the tool kit. Hub caps
are marked with arrows showing the
direction in which thcv screw on and
oir.
Fig. lSii. Jack up the wheel until
the tire clears the ground. Remove
the dust cap and clamping nut from
the valve stem. Remove the six rim
clamps, unscrewing them with the
brace wrench supplied in the tool kit.
Fig. 17b. Jack up the axle until the
weight of the car is off of the wheel,
but with the tire still dragging.
Loosen the cap screws around the
wheel hub by turning them in a
counter-clockwise direction with the
wrench. Then jack the wheel up
further, remove the cap screws and
take the wheel off of the hub.
Fig. 1SI>. Rotate the wheel until
the valve stem is at the top, and pull
the bottom of the rim away from the
wheel.
Fig. 17c. To mount a wheel simply
set it up on the hub and start the
cap screws by hand. Then tighten
the screws with the wrench, but do
not tighten them in rotation. After
tightening one screw, tighten the
screw directly opposite.
Fig. 17. Changing Wire Wheels
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Fig. ISc. Then rotate the wheel
until the valve stem approaches the
bottom, when the rim and tire will roll
free from the wheel and can be removed
without lifting.
To mount a rim, rotate the wheel
until the hole for the valve stem is in
the position shown in the last illustration.
Insert the valve stem and
rotate the wheel, which will carry the
rim with it, until the valve stem is at
the top. Then push the lower part of
the rim into place. Install the rim
clamps over the rim and turn the nuts
partly down. Go over the nuts again
and tighten them firmly. Install the
valve stem clamping nut and the dust
cap. Be sure the clamping nut is tight.
Fig. 18. Changing Rims (Standard
Wood Wheels)