Adjustment

LUBRICANT


Adjustment

Adjust lubricant level according to the following procedures.
1.CHECK LUBRICANT LEAKAGE
Check whether there is a large amount of leakage of refrigerant or lubricant.

CAUTION:
If a large amount of refrigerant or lubricant leakage is detected, never perform lubricant return operation.
Is the check result normal?
YES - GO TO 2.
NO - GO TO 3.
2.PERFORM LUBRICANT RETURN OPERATION
1. Start the engine and set to the following conditions.
- Engine speed: Idling to 1,200 rpm
- A/C switch: ON
- Fan speed: Maximum speed set
- Intake door position: Recirculation
- Temperature setting: Full cold
2. Perform lubricant return operation for approximately 10 minutes.
3. Stop the engine.
- GO TO 3.
3.REPAIR MALFUNCTIONING PART
Repair or replace malfunctioning part according to diagnosis result.
Compressor does not need replacement.-GO TO 4.
Compressor needs replacement.-GO TO 5.
4.FILL LUBRICANT
Fill with lubricant for the amount that is calculated according to the following conditions.
Example: Lubricant amount to be added when replacing evaporator and liquid tank [ml (US fl oz., Imp fl oz.)]
= 45 (1.5, 1.6) + 15 (0.5, 0.5) + alpha





- WORK END
5.DRAIN LUBRICANT





1. Remove drain plug (A). Drain lubricant while rotating magnet clutch.
2. Tighten drain plug to the specified torque when lubricant does not come out.

Drain plug tightening torque : 9.8 N-m (1.0 kg-m, 87 in-lb)

3. Drain lubricant from high-pressure port (B) and low-pressure port (C) while rotating magnet clutch.
4. Measure total amount of lubricant that is drained from removed compressor.





5. Drain lubricant from a new compressor for the amount that is calculated according to the following conditions.






CAUTION:
If lubricant amount that is drained from removed compressor is less than 60 ml (2.0 US fl oz., 2.1
Imp fl oz.), perform calculation by setting "D" as 40 ml (1.4 US fl oz., 1.4 Imp fl oz.).





Example: Lubricant amount to be drained from a new compressor when replacing compressor and liquid tank [ml (US fl oz., Imp fl oz.)] [D = 60 (2.0, 2.1), alpha = 5 (1.4, 1.4)]
150 (5.1, 5.3) - [60 (1.5, 1.6) + 20 (0.7, 0.7) + 15 (0.5, 0.5) + 5 (0.2, 0.2)] = 50 (1.7, 1.8)
- WORK END