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Lubricant Adjusting Procedure for A/C compressor Replacement
 
 
1. Drain lubricant from removed A/C compressor and measure lubricant amount.
  • Remove drain bolt , and then drain lubricant from drain port.
  • Measure total amount of lubricant that is drained from removed A/C compressor.
2. Drain lubricant from a new A/C compressor that is calculated according to the following conditions.
Amount to be drained (A) [m (Imp fl oz)] = F − (D + S + R + α)
F: Lubricant amount that a new A/C compressor contains [110 (3.9)]
D: Lubricant amount that is drained from removed A/C compressor
S: Lubricant amount that remains inside of removed A/C compressor [20 (0.7)]
R: Lubricant amount to be added according to components that are removed except A/C compressor
α: Lubricant amount that is recycled together with refrigerant during recycle operation
cautionIf lubricant amount that is drained from removed A/C compressor is less than 60 m (2.1 Imp fl oz), perform calculation by setting “D” as 40 m (1.4 Imp fl oz).
ConditionsLubricant amount to be added to A/C system
m (Imp fl oz)
Replace evaporator35 (1.2)
Replace condenser & liquid tank20 (0.7)
Example: Lubricant amount to be drained from a new A/C compressor when replacing A/C compressor and condenser & liquid tank [m (Imp fl oz)] [D = 60 (2.1), α = 5 (0.2)]
110 (3.9) − [60 (1.6) + 20 (0.7) + 5 (0.2)] = 15 (−0.9)
3. Tighten drain bolt to the specified torque
Specified torque: 30 N·m (3.1 kg-m, 22 ft-lb)
4. Install A/C compressor and check the operation.