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brake and the engine. As in Drive range the driver can over-
control the transmission to obtain the best performance or
economy.
Operating in "LOW" Range (Automatic operation from Con-
verter through first and second gears).
The "Low" Range is the extra-heavy-duty range for start-
ing extra heavy loads, and ascending or descending extremely
steep grades. The throttle position and vehicle speed control
the shift pattern. The transmission remains in the higher
ratios of this range only as long as vehicle speed and load re-
quire the higher ratio. This range is required only for extreme
operating conditions.
COLD WEATHER OPERATION
Cold weather presents many problems to the motoring
public; however, the Chevrolet truck will be equally depend-
able in cold weather if given a minimum amount of attention.
1. The cooling system must be protected against freezing
by the use of anti-freeze solutions (see
"Cooling
System" and
"Anti-Freeze"). If not protected by anti-freeze solutions, each
time the vehicle
is
to stand any length of time, the system must
be drained at the lower right corner of the radiator and the
left rear corner of the cylinder block; also at the oil cooler
rear pipe on Hydra-Matic equipped models with oil cooler.
2. Light oil should be used in the engine (see "Engine
Lubrication")
.
3.
The battery should be kept fully charged to provide the
additional power necessary to crank a cold engine and furnish
a good spark. A discharged battery will freeze in extremely
cold weather whieh will make battery replacement necessary.
4. The carburetor, fuel pump and fuel tank should be kept
free from water which will freeze and restrict fuel flow.
5. The ignition system should be kept in good condition.
6. Assuming that the above items have been given normal
attention, the engine should start promptly, even in extremely
cold weather, by following the simple procedure described
on page 14 for models equipped with conventional transmis-
sions or page 18 for models equipped with automatic trans-
missions. In abnormally cold weather the engine should be
run slightly above idling speed for a few minutes to warm up
the oil before driving the truck .
• 23 •
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