Nissan Air Con Compressor Fitting Guide - AC A/C Pump

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When a failed Nissan air conditioning compressor is replaced by a new Nissan a/c compressor, it is so important to have the lubricant
distributed evenly across the Nissan air conditioning compressor and the a/c system before engaging the system for the first

If this is overlooked and the Nissan air con compressor is engaged immediately after is has been charged with
refrigerant, it may happen that all the oil in the Nissan a/c compressor will be pushed out all at once while there
is no oil yet to enter the Nissan air conditioning compressor on the other side. This is caused by the fact that it takes some
time for the oil to spread across the system and mix with the refrigerant. Eventually the Nissan ac compressor
may be damaged because of a lack of lubrication during the first few minutes of operation.

This will of course be more problematic after the system has been flushed, this will mainly be the
case after the Nissan air con compressor has suffered a catastrophic failure with metal particles from the Nissan a/c compressor
being spread across the entire system.

A rule of thumb guide when installing a new Nissan air con compressor is to manually turn the Nissan a/c compressor pulley
to make sure that the oil is distributed through the Nissan air con compressor evenly. Experienced engineers will
normally turn the Nissan ac compressor 10—15 times to ensure that oil has been pushed around the system.

There is still more to do to prepare the Nissan air con compressor, knowing and following the procedure will be of
great importance if a newly installed Nissan air conditioning compressor should fail after a short period of time and within
its warranty period. There is no bigger disappointment than having a warranty claim denied because
something as simple as the following procedure has been overlooked.

Generally new Nissan a/c compressors are supplied charged with oil, but it is always recommended that you
check this by draining the new Nissan air con compressor to check the amount of oil in the Nissan air conditioning compressor.

Then once you have removed the old Nissan a/c compressor you should do the same again, empty the old Nissan ac compressor
of oil to see how much oil was in it and then fill the new Nissan air con compressor with the same amount
this is to avoid over charging the system with oil.

After this has been done and the Nissan a/c compressor has been fitted, you do not engage the Nissan air con compressor with
the engine running until the following steps have been followed.

1, Open all air louvers at the dash board, 2, Start the engine and let it stabilise at idle speed 3, Set the
blower at maximum speed, 4, Engage the a/c system and operate it continuously for 2 minutes at below
1500 rpm.

After the two minutes the Nissan air con compressor oil will have distributed evenly throughout the Nissan a/c system.

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