Ford Corsar Repair Manual page 791

SERVICE PROCEDURES
Compressor Oil
Checking and Adjusting
The oil used to lubricate the compressor is circulat-
3. Check the purity of the oil and then adjust oil level
ing with the refrigerant.
following the procedure below.
Whenever replacing any component of the system
(a) When oil is clean;
or a large amount of gas leakage occurs, add oil to
maintain the original amount of oil.
Unit: m1
OIL CAPACITY
Amount of oil drained Adjusting procedure
Unit: ml
Above 70'
Oil level is right
Pour
in
same amount of
oil
as was drained out.
Applied model All models Oil level may be low
Below 7 0
Caoacitv
Pour in 70 ml of oil
": If amount of oil drained is much greater than under normal circum-
Total in system 200
stances, flush air conditioner system with refrigerant. Then pour
in 200ml of oil into air conditioner system
Amount of oil which can
Approx. 100'
be drained
(b) When oil contains chips or other foreign material;
Compressor (Service
200
After air conditioner system has been flushed with
parts) charging amount
refrigerant, replace receiver drier. Then pour in
*: All oil cannot be drained from system
200 m 1 of oil into air conditioner system.
CHECKING AND ADJUSTING FOR
OIL RETURN OPERATION COMPRESSOR REPLACEMENT
Before checking and adjusting oil level, operate com-
200 ml of oil is charged in compressor (service parts).
pressor at engine idling speed, with controls set for
So it is necessary to drain the proper amount of oil from
maximum cooling and high blower speed, for 20 to 3 0
new compressor. Follow the procedure below.
minutes in order to return oil to compressor.
1. After oil return operation, drain compressor oil
from used compressor and measure the amount.
(It is the same procedure as CHECKING AND
ADJUSTING FOR USED COMPRESSOR.)
CHECKING AND ADJUSTING FOR USED
COMPRESSOR
1. After oil return operation, stop the engine and dis-
charge refrigerant and then remove compressor
from the vehicle.
2. Drain compressor oil from compressor discharge
port and measure the amount.
Oil is sometimes hard to extract when compressor
is cooled. Remove oil while compressor is warm
[maintained to 4 0 to 50°C (1 0 4 to 122"F)I.