Nissan Rogue Service Manual: Oil
Nissan Rogue Service Manual: Oil
MAINTENANCE OF OIL LEVEL
The compressor oil is circulating in the system together with the refrigerant. It is necessary to fill compressor with oil when replacing A/C system parts or when a large amount of refrigerant leak is detected. It is important to always maintain oil level within the specified level or otherwise the following conditions may occur:
- Insufficient oil amount: Stuck compressor
- Excessive oil amount: Insufficient cooling (caused by insufficient heat exchange)
Oil Type: ND-OIL
If a compressor is malfunctioning (internal noise, insufficient cooling), check the compressor oil.
1.COMPRESSOR OIL JUDGMENT
- Remove the compressor. Refer to HA-30, "Removal and Installation".
- Sample compressor oil and judge below according to the figure.
Judgement result 1>>Replace compressor only.
Judgement result 2>>Replace compressor and condenser (includes liquid tank).
Perform Oil Return Operation
CAUTION: If a large amount of refrigerant or oil leak is detected, do not perform oil return operation.
- Start the engine and set to the following conditions:
- Engine speed: Idling to 1,200 rpm
- A/C switch: ON
- Fan (blower) speed: Maximum speed set
- Intake door position: Recirculation
- Temperature setting: Full cold
- Perform oil return operation for approximately 10 minutes.
- Stop the engine.
- Oil return operation is complete.
Oil Adjusting Procedure for Components Replacement Except Compressor
Fill with oil for the amount that is calculated according to the following conditions.
Example: Oil amount to be added when replacing evaporator [m (US fl oz, Imp fl oz)] = 75 (2.5, 2.6) + α
Oil amount to be added to A/C system m(US fl oz, Imp fl oz)
|Replace evaporator||75 (2.5, 2.6)|
|Replace condenser (includes liquid tank)||80 (2.7, 2.8)|
|Refrigerant leak is detected||Large amount leak||30 (1.0, 1.1)|
|Small amount leak||—|
|Oil amount that is recycled together with refrigerant during recycle operation||α|
Oil Adjusting Procedure for Compressor Replacement
- New compressor
- Old compressor
- Recovery/recycling equipment
- Measuring cup X
- Measuring cup Y
- New oil
- Drain oil from the new compressor into clean container
- Record amount of oil recovered
- Install new oil equal to recorded amounts in measuring cups X and Y
- Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges.
No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
- Connect recovery/recycling equipment to vehicle. Confirm refrigerant purity in supply tank using recovery/ recycling equipment and refrigerant identifier. If NG, refer to HA-4, "Precautions For Refrigerant System Service".
- Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identifier.
If NG, refer to HA-4, "Precautions For Refrigerant System Service".
- Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure oil discharged into the recovery/recycling equipment.
- Drain the oil from the “old” (removed) compressor into a graduated container and recover the amount of oil drained.
- Drain the oil from the “new” compressor into a separate, clean container.
- Measure an amount of new oil installed equal to amount drained from “old” compressor. Add this oil to “new” compressor through the suction port opening.
- Measure an amount of new oil equal to the amount recovered during discharging. Add this oil to “new” compressor through the suction port opening.
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