1917 Cadillac - GM Heritage Center

94 ADJUSTMENTS
ADJUSTMENTS 95
TO MOUNT RIM
Fig. 55. Mounting Rim on Wheel.
If the rim you are mounting has no
split clamping ring, take the one from
the rim you have removed. Turn the
wheel so that the hole for the valve
stem is at the top. Hold the rim so that
the valve stem is at the top and so that
the rim joint latch and the clamping ring
are towards you. Insert the valve stem
in the valve stem hole in the wheel and
then push the bottom of the rim into
place. (Fig. 55.)
Turn each clamp to its original position
and turn the clamping ring so that
the split in the ring comes directly
under one of the clamps. Tighten each
clamp slightly. Then continue around
the wheel, tightening each clamp firmly.
Screw on the valve cap.
If the rim does not run true, mark the part that runs "out" from the face
of the wheel. Then slightly loosen the clamps diametrically opposite this
part and tighten the clamps at the marked part. Proceed in this manner until
the rim does run true.
TO REMOVE A TIRE FROM A DEMOUNTABLE RIM
The tire may be removed without removing the rim from the wheel.
Deflate the tire. Then open the lock with the pointed end of the tire
tool or with a screw driver.
Turn the wheel until the valve stem is
at the top, and pull the lower part of
the tire towards you until it is clear of
the rim. The tire may then be removed
from the rim by lifting it straight up.
Note:—In removing the ring from the
rim, care should be taken to avoid opening
the ring beyond its elastic limit.
When the ring is free from the rim
the ends of the ring should overlap from
yi to 1½ inches, which it will not do if
it has been stretched in removal.
If the ends of the ring do not overlap
they should be closed together before
replacing. If this is not done there is
a possibility of the lock failing to properly
engage the lugs on the ends of the
ring, which might later be the cause of *%• **•
an accident.
Removing Tire from
3rd Position.
Rim,
CAUTION.—Do not attempt to remove a tire from the demountable
rim without first completely deflating the tire. Serious personal injury may
result if this is attempted.
TO PUT A TIRE ON A DEMOUNTABLE RIM
If the demountable rim is on the wheel, jack up the axle and turn the
wheel until the hole for the valve is at the top.
Fig. 56. Removing Tire from Rim,
1st Position.
Fig. 57. Removing Tire from
2nd Position.
Rim,
Fig. 59. Placing Tire on Rim,
1st Position.
Placing Tire on Rim,
2nd Position.
Raise one end of the ring with the tool as shown (Figure 56) until the
lug is clear of the slot in the rim.
Raise the end of the ring further and force the lug out over the edge of
the rim. (Figure 57.)
Start at the end of the ring, which is out of the groove, and remove the
entire ring from the rim. (Figure 58.) (See note.)
Hold the tire so that the valve stem is at the top and insert the valve stem
in the valve stem hole in the rim and wheel. Then push the bottom of the
tire into place.
Insert one end of the locking ring in the slot in the rim. Then with the
tool as a lever, force the tire back far enough to allow the ring to go on
easily. (Figure 59.)