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Below is a fitting guide for your convenience - Please give us a positive vote if it proves useful.
When a failed Citroen XM air conditioning compressor is replaced by a new Citroen XM a/c compressor, it is so important to have the lubricant distributed evenly across the Citroen XM air conditioning compressor and the Citroen XM a/c system before engaging the system for the first time.
If this is overlooked and the Citroen XM air con compressor is engaged immediately after is has been charged with refrigerant, it may happen that all the oil in the Citroen XM a/c compressor will be pushed out all at once while there is no oil yet to enter the Citroen XM 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 Citroen XM 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 Citroen XM air con compressor has suffered a catastrophic failure with metal particles from the Citroen XM a/c compressor being spread across the entire system.
A rule of thumb guide when installing a new Citroen XM air con compressor is to manually turn the Citroen XM a/c compressor pulley
to make sure that the oil is distributed through the Citroen XM air con compressor evenly. Experienced engineers will
normally turn the Citroen XM ac compressor 10—15 times to ensure that oil has been pushed around the system.
There is still more to do to prepare the Citroen XM air con compressor, knowing and following the procedure will be of great importance if a newly installed Citroen XM 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 Citroen XM a/c compressors are supplied charged with oil, but it is always recommended that you check this by draining the new Citroen XM air con compressor to check the amount of oil in the Citroen XM air conditioning compressor.
Then once you have removed the old Citroen XM a/c compressor you should do the same again, empty the old Citroen XM ac compressor of oil to see how much oil was in it and then fill the new Citroen XM air con compressor with the same amount this is to avoid over charging the system with oil.
After this has been done and the Citroen XM a/c compressor has been fitted, you do not engage the Citroen XM 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 Citroen XM a/c system and operate it continuously for 2 minutes at below
After the two minutes the Citroen XM air con compressor oil will have distributed evenly throughout the Citroen XM a/c system.
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