Table of Contents
Advertisement
AUTOMATIC AIR CONDITIONING SYSTEM
IW5o11 4-7
5 . Refrigerant Service Procedure
1 . WORK FLOW
In Service A/C system
Basic check
1) Check amount of refrigerant - SIGHT GLASS INSPECTION
2) Oil seepage - Visual inspection
O.K .
Not O .K.
Insufficient or no refrig-
erant
Lead Check
Not O.K .
Install the charging equipment .
Discharging
Repair
Not O.K .
Insufficient refrigerant
O . K.
Not
O .K.
Check Discharge Pres-
sure.
1) Replace parts.
2) Check the O-ring .
3) Other
Evacuating for approx . 30 minutes for an in-service system
Airtight check Manifold gauge pointer does not move to cor-
rect atmospheric pressure level .
Evacuating For approx . 20 minutes
Charging Charge approx . 200 g (7 .05 oz) grams of refrigerant
from the PS side .
Not
O .K.
PRE-LEAK CHECK
Charging Charge specified amount of refrigerant .
Not
OR
Leak Check
Operation Check
Remove the charging equipment .
Trouble Diagnoses
O .K.
1) SYSTEM CIRCUIT
2) HARNESS CONNEC-
TORS
3) OTHER
Chargingr-- Required
amount of refrigerant .
51
Advertisement
Table of Contents
Troubleshooting
