Evaporator - Lincoln Continental 1964 Shop Manual

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12 evaporates so quickly that it tends
to freeze anything that it contacts.
For this reason, extreme care must
be taken to prevent any liquid re-
frigerant from coming in contact
with the skin and especially the eyes.
Refrigerant-12 is readily absorbed
by most types of oil. It is therefore
recommended that a bottle of sterile
mineral oil and a quantity of weak
boric acid solution be kept nearby
when servicing the air conditioning
system. Should any liquid refrigerant
get into the eyes, use a few drops of
mineral oil to wash them out, and
then wash the eyes clean with the
weak boric acid solution. Seek a
doctor's aid immediately even though
irritation may have ceased.
Always wear safety goggles when
servicing any part of the refriger-
ating system.
The Refrigerant-12 in the system is
always under pressure. Because the
system is tightly sealed, heat applied
to any part would cause this pressure
to build up excessively.
To avoid a dangerous explosion,
never weld, use a blow torch,
solder, steam clean, bake body
finishes, or use any excessive
amount of heat on, or in the imme-
diate area of, any part of the air
cooling system or refrigerant sup-
ply tank, while they are closed
to the atmosphere whether filled
with refrigerant or not.
The liquid refrigerant evaporates
so rapidly that the resulting refriger-
ant gas will displace the air sur-
rounding the area where the refrig-
erant is released. To prevent possible
suffocation in enclosed areas, always
discharge the refrigerant from an air
cooling system into the garage ex-
haust collector. Always maintain
good ventilation surrounding the
work area. If the car is to be under-
coated, make certain that the un-
dercoating does not plug the
evaporator drain tubes.
Although Refrigerant-12 gas, un-
der normal conditions, is non-poison-
ous, the discharge of refrigerant
gas near an open flame can produce
a very poisonous gas. This gas will
also attack all bright metal surfaces.
This poisonous gas is generated in
small quantities when the flame-type
leak detector is used. A void inhaling
the fumes from the leak detector.
Make certain that Refrigerant-12
is both stored and installed in
accordance with all state and local
ordinances.
When admitting Refrigerant - 12
PART 16-3- AIR CONDITIONING
gas into the cooling unit, always
keep the tank in an upright position.
If the tank is on its side or upside
down, liquid Refrigerant-12 will
enter the system and damage the
compressor. In surrounding air
temperatures above 90°F., pro-
longed engine idle will result in
excessively high compressor pres-
sures.
EVAPORATOR
REMOVAL
1. Disconnect the battery ground
cable.
2. Remove the carburetor air
cleaner.
3. Discharge the refrigerant into
the garage exhaust system.
4. Disconnect the refrigerant lines
from the evaporator, and remove the
expansion valve (Fig. 10).
5. Disconect the vacuum lines
at the junction block.
6. Disconnect the wires from the
thermostatic switch.
7. Remove the instrument panel
insulation board (See Group 15).
8. Remove the sun visor mount-
ing brackets.
9. Remove the corner post garnish
moulding.
10. Remove the five screws re-
taining the upper section of the
instrument panel. Carefully lift the
rear end of the panel and slide it
away from the windshield.
11. Disconnect the phototube unit
plug from the amplifier of the auto-
matic headlight dimmer.
12. Remove the upper panel.
RECIRCULATING DOOR
16-17
13. Disconnect the right and left
defroster hoses at the evaporator.
14. Disconnect the right and left
register hoses at the evaporator.
15. Disconnect both center register
hoses at the instrument panel.
16. Remove five screws just back
of windshield.
17. Remove four vertical bolts,
two at steering column, the other
two at outer ends of instrument
panel.
18. Pull instrument panel back to
allow clearance for removal of evap-
orator.
19. Remove evaporator mounting
screws and remove the evaporator.
INSTALLATION
1. Position the evaporator to the
dash and drive the mounting screws.
2. Reposition instrument panel
and install the four vertical bolts.
3. Drive the five screws which
attach the instrument panel just back
of the windshield.
4. Connect both center register
hoses to the instrument panel.
5. Connect the right and left reg-
ister hoses to the evaporator.
6. Connect the right and left de-
froster hoses to the evaporator.
7. Position the upper section of
the instrument panel such that the
phototubes unit plug can be con-
nected to the amplifier, and make the
connection.
8. Carefully slide the panel to the
correct position and drive the five
retaining screws.
9. Install the instrument panel in-
sulation board (See Group 15).
EXPANSION VALVE
WINDSHIELD WIPER MOTOR
AIR BLEED DOOR VACUUM ACTUATOR
TO RECEIVER
K1359-B
FIG.
10-Evoporotor Refrigerant Line Connections