Refrigerant Check - Chevrolet 1957 Owner's Manual

to provide the degree of cooling desired; pushing all the way
down provides maximum cooling.
• The leh hand COOLING lever (marked "OUTlET") allows the
cooled air to be directed to either the heater duct or the dash
diffuser nozzles, or partly to both at the same time.
• Set AIR lever to either INSIDE or OUTSIDE and move the three-
speed blower switch to the desired blower speed .
•
TO DKHUM'D'FY
Push the right hond COOLING lever (COLD) ftJlly down to provide
maximum cooling. As Ihe outside air is cooled, it releases excess
humidity.
Sel HEAT lever to
heal
this
oir 10
the desired temperature
as
it
enters
the car.
Set the
left
hand
COOLING lever
(OUllEn
os outlined under
heading TO COOL above.
T
Ufn
on blower as desired.
In Addition, While Parlced ... An idle control knob provides the higher
engine idle speed necessary to provide adequate cooling while
parked. This knob is located directly below the Air Conditioning
control panel. On automatic transmission equipped models, do not
puli this knob unless transmission selector lever is in park or neutral
position.
REFRIGERANT CHECK
It
is important that the Freon refrigerant in the system be checked
every 1000 miles during warm weather and seasonally throughout
the year. Check the sight glass under the hood. The Freon flowing
past this point should be clear. If there are bubbles or dirt particles
present it indicates a leak in the system. A Chevrolet service garage
should check the system immediately and replace the refrigerant.
Any foreign substances, air, water or dirt, will rust and corrode the
entire system in a very short period of time .
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