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Maintenance of Lubricant Quantity in NBHA0071 The lubricant in the compressor circulates through the system with I Lack of lubricant: May lead to a seized compressor I Excessive lubricant: Inadequate cooling (thermal exchange LUBRICANT NBHA0071S01 Name: Nissan A/C System Oil Type S CHECKING AND ADJUSTING NBHA0071S02 Adjust the lubricant quantity according to the test group shown 1 CHECK LUBRICANT RETURN OPERATION Can lubricant return operation be performed? I A/C system works properly. I There is no evidence of a large amount of lubricant leakage. Yes or No Yes © GO TO 2. No © GO TO 3. 2 PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS: 1. Start engine, and set the following conditions: I Test condition 2. Next item is for V-5 or V-6 compressor. Connect the manifold gauge, and check that the high pressure side pressure is 588 kPa (6 kg/cm 2 , 85 psi) or higher. If less than the reference level, attach a cover to the front face of the condenser to raise the pressure. 3. Perform lubricant return operation for about 10 minutes. CAUTION: If excessive lubricant leakage is noted, do not perform the lubricant return operation. OK © GO TO 3. 3 CHECK COMPRESSOR Should the compressor be replaced? Yes or No Yes © Go to “Lubricant Adjustment Procedure for Compressor Replacement”, (HA-148). No © GO TO 4. SERVICE PROCEDURE Maintenance of Lubricant Quantity in Compressor HA-146 |