C.c.o.t. Refrigerant Oil Distribution; Cautions In Handling Refrigerant-12 - Pontiac TRANS AM 1977 Service Manual

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CUSTOM AIR CONDITIONING
18-3
C.C.O.T. REFRIGERANT OIL
DISTRIBUTION
A-6 COMPRESSOR
--
requires 10 fluid ounces of 525
viscosity oil
R-4 COMPRESSOR
--
requires 6 fluid ounces of 525
viscosity oil
1. I F THERE ARE NO SIGNS O F EXCESSIVE OIL
LEAKAGE, add the following amount of oil depending on
component replaced:
For A-6
&
R-4 Compressor Systems
-
Evaporator
-
(3
fluid ounces)
For A-6
&
R-4 Compressor Systems
-
Condenser
-
(1
fluid ounce)
For R-4 Compressor System only
-
Accumulator (Drain
oil, measure, replace same amount plus 1 oz.)
For A-6 Compressor System only
-
Accumulator (see
Item 2 below)
2. HOWEVER, ON AN A-6 COMPRESSOR
SYSTEM:
I F EITHER THE ACCUMULATOR OR THE
COMPRESSOR IS TO BE REPLACED
...
OR IF THERE ARE SIGNS O F ABUNDANT OIL
LEAKAGE..
.
THEN
BOTH
ACCUMULATOR
AND
COMPRESSOR must be removed
--
oil drained
--
and
measured to determine correct quantity of oil replacement for
the system. If the amount of oil recovered is 4 oz. or more,
replace with a like amount of new oil. If less than 4 oz. are
recovered, add 6 oz. of new oil.
NOTE: A good A-6 system will have 6 ounces of oil
found in the accumulator and/or compressor. Neither
necessarily has 3 ounces
-
could be more or less. This
is why BOTH have to be measured.
IN ADDITION to these measured amounts, one (1)
additional fluid ounce MUST be added to replace that
amount captured in the oil desiccant of the replaced
accumulator assembly.
NOTE: New service A-6 Compressors are shipped with
10 ounces of oil already inside. Therefore, when a new
A-6 Compressor is installed, its oil must first be drained
and measured to leave only that like amount drained and
measured in the oil compressor.
3. ON AN R-4 COMPRESSOR SYSTEM WITH
SIGNS O F ABUNDANT OIL LEAKAGE:
ONLY THE ACCUMULATOR SHOULD BE
REMOVED from the system, oil drained and then measured
to determine correct quantity of oil replacement. If the
amount drained is 2 oz. or more, replace with like amount.
If less than 2 oz., replace with 2 oz. of new oil.
IN ADDITION to this amount, add 1 oz, to replace
the amount captured in the old desiccant of the replaced
accumulator assembly.
NOTE: Because the R-4 Compressor has no oil sump,
it is not necessary to remove this compressor to measure
oil.
%ECAUTIONS I N HANDLING
3EFRIGERANT-12
1. Do not leave drum of Refrigerant-12 uncapped.
2. Do not carry any container of Refrigerant-12 in
passenger compartment of car.
3. Do not subject any container of Refrigerant-12 to high
temperature.
4. Do not weld or steam clean on or near system.
5. Do not fill drum of Refrigerant-12 completely.
6. Do not discharge vapor into area where flame is
exposed.
7. Do not expose eyes to liquid.
WARNING: IF REFRIGERANT-1 2 LIQUID
SHOULD STRIKE THE EYE, CALL A
DOCTOR IMMEDIATELY.
A. DO NOT RUB THE EYE. SPLASH THE
AFFECTED AREA WlTH QUANTITIES OF
COLD WATER TO GRADUALLY GET THE
TEMPERATURE ABOVE THE FREEZING
POINT.
B. THE USE OF AN ANTISEPTIC OIL IS
HELPFUL IN PROVIDING A PROTECTIVE
FILM OVER THE EYEBALL TO REDUCE
THE POSSIBILITY OF INFECTION.
C. OBTAIN TREATMENT AS SOON AS
POSSIBLE, FROM A DOCTOR OR EYE
SPECIALIST.
SHOULD LIQUID R-12 COME INTO
CONTACT WlTH THE SKIN, THE INJURY
SHOULD BE TREATED THE SAME AS
SKIN WHICH HAS BEEN FROSTBITTEN
OR FROZEN.

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Firebird 1977

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