Cadillac V-63 1923 Operator's Manual page 14

20
OPERATION
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
12.)
Starting at the end of the ring which
is inserted in the slot in the rim, force the
remainder of the ring into place by using
the tire tool as pliers. (Figure 13.)
Insert the flat end of the tool between
the rim and the ring and turn the tool up
edgewise. (Figure 14.) This will lift the
loose end of the ring and force it into
place.
Draw the ends of the locking ring
together with the tool. (Figure 15.)
Then swing the lock into place.
Then inflate the tire. (See under
"Tire Air Compressor," page 21 and "Tire
Air Pressures," page 17.)
If the demountable rim is not attached
to a wheel, lay the rim with the tire flat
on the ground when removing or replac-
ing a tire.
TIRE HOLD
The tire holder is designed to carry two standard size tires inflated on
rims.
To remove the tire with rim, remove the cap from the lock at the center
of the clamp and unlock it. Then unscrew the clamp as far as it will go.
The tire then may be removed.
To put a tire on the holder proceed in the reverse manner.
When mounting two tires on the tire holder, the clamping or locking rings
should face each other to prevent theft of the tires by removing them from
the rims. If mounting one tire on the tire holder, the clamping or locking
ring should face to the front or toward the body.
Fig. 14-
Placing Tire on Rim.
Third Position.
Fig. 15.
Placing Tire on Rim,
Fourth Position.
ER
OPERATION
21
Care should be exercised not to permit the inner tire to strike the body
of the car when removing or replacing it.
COLD WEATHER SUGGESTIONS
STARTING THE ENGINE
Manipulation of Carburetor Enriching Button
Pull back the carburetor enriching button before attempting to start the
engine in cold weather, but immediately the engine commences to run under
its own power push the button as far forward as possible without causing the
engine to stop or slow down materially and as far forward as it goes as
soon as the engine is warm enough to permit it.
Priming the Carburetor
In extremely cold weather, if the engine is not started in 30 seconds with
the carburetor enriching button pulled back, remove the foot from the
starter button. This will stop the cranking operation. Now open and close
the throttle once or twice with the hand throttle or the foot accelerator. Do
not open and close the throttle more than twice. Opening and closing the
throttle operates the throttle pump of the carburetor. This raises the level
of the gasoline in the carburetor, thereby priming it. If the throttle is
opened and closed more than twice, gasoline is forced out of the carburetor.
Position for Spark Lever
Except in extremely cold weather the spark lever should be placed about
one-third the way down from the "Advance" position when starting. In
extremely cold weather, it should be in the "Advance" position when starting.
(If the engine is to be cranked by hand, the spark lever should be placed at
the "Retard" position.)
It is the practice of some drivers to place the spark lever at the "Retard"
position when starting the engine. While this is the proper position for the
spark lever if the engine is to be hand cranked, there is no reason for retarding
the spark when the engine is electrically cranked and starting is facilitated
if the spark lever is advanced. In extremely cold weather there is no reason
why the spark lever cannot be placed in the "Advance" position if the
engine be electrically cranked and a quicker start is assured if this is done.
The following will explain why it is possible to fully advance the spark lever
at such times: