What is SAE J 639?

What is SAE J 639?

This SAE Standard applies to refrigerant vapor compression systems that provide cooling and/or heating for passenger cars, light trucks, and commercial vehicles (on and off road) that use automotive type mobile air conditioning (MAC) systems.

What is J639?

J639: Safety Standards for Motor Vehicle Refrigerant Vapor Compressions Systems – SAE International. Standards.

What is nd8 PAG oil?

Answer: Nd 8 is a pag 46 oil. If you are using it in an R134a system, it should be fine. According to the compressor manufacturer Denso, nd 8 has additives that go beyond standard pag 46 specifications but they are the same viscosity.

How much PAG oil do I put in a compressor?

Here is the amount of PAG oil needed for its smooth operation by different AC components: Compressor = 1.4 ounces. Evaporator = 1.5 ounces. Condenser = 1 ounces.

What is PAG oil?

PAG oil: Polyalkylene Glycol or PAG oil is a man-made lubricant used in both R134a systems and the latest R1234yf. Today it is still used in older R-12 refrigerant systems. And because it does not absorb moisture, it is also used to lubricate O-rings and seals in both R-12 and R134a systems.

What is ND 8 equivalent?

The bottom line is that ISO 46 system is equivalent to the ND 8 system.

Is pag 46 same as ND8?

What happens if you put too much oil in AC compressor?

If you add too much oil to the system, it may pool in various places of the system and can coat the inner walls of the evaporator and condenser coils. This will diminish their ability to absorb or dissipate heat, thereby bringing down the overall cooling performance.

How much PAG 150 oil do I put in a compressor?

What happens if I use the wrong PAG oil?

Using the wrong oil may allow current to short circuit back through the A/C compressor, creating a shock hazard. Mineral oil should only be used in older R-12 A/C compressors because R-12 will not mix with R-134 refrigerant. This can lead to poor lubrication and premature compressor failure.

Where do you put PAG oil?

Pour the oil very slowly into the intake port or low side of the compressor. This is where the large line entered. While pouring in the refrigerant oil, rotate the hub and clutch slowly to let the oil enter the compressor.

Is pag 46 the same as ND-oil 8?