Trooper LTD V6-3165cc 3.2L SOHC MFI (6VD1) (1997)
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Refrigerant Oil: Testing and Inspection
The oil used to lubricate the compressor is circulating with the refrigerant.
Whenever replacing any component of the system or a large amount of gas leakage occurs, add oil to maintain the original amount of oil.
Oil Capacity.
Capacity total in system 150 cc (5.0 fl.oz.)
Compressor (Service parts) charging amount 150 cc (5.0 fl.oz.)
Checking and Adjusting Oil Quantity for Used Compressor
1. Perform Oil return operation.
(Refer to "Oil Return Operation".)
2. Discharge and recover refrigerant and remove the compressor.
3. Drain the compressor oil and measure the extracted oil with a measuring cylinder.
4. If the amount of oil drained is much less than 9O cc (3.0 fl.oz.), some refrigerant may have leaked out. Conduct leak tests on connections of each
system, and if necessary, repair or replace faulty parts.
5. Check the compressor oil for contamination.
(Refer to "Contamination of Compressor Oil".)
6. Adjust oil level following the procedure below:
Collected Amount Charging Amount
more than 9O cc (3.0 fl.oz.) same as collected amount
less than 90 cc (3.0 fl.oz.) 90 cc (3.0 fl.oz.)
7. Install the compressor, then evacuate, charge and perform oil return operation.
8. Check system operation.
When it is impossible to perform oil return operation, the compressor oil should be checked in the following order:
1. Discharge and recover refrigerant and remove the compressor.
2. Drain the compressor oil and measure the extracted oil with a measuring cylinder.
3. Check the oil for contamination.
4. If more than 9O cc (3.0 fl.oz.) of oil is extracted from the compressor, supply same amount of oil to the compressor to be installed.
If the amount of oil extracted is less than 9O cc (3.0 fl.oz.), recheck the compressor oil in the following order:
5. Supply 9O cc (3.0 fl.oz.) of oil to the compressor and install it onto the vehicle.
6. Evacuate and recharge with proper amount of refrigerant.
