The next air conditioning season is fast approaching, and with it, increased demand for efficiently functioning cooling systems. To avoid unexpected downtime and costly repairs, it is worth taking care of your A/C service station early enough. That is why we have prepared a few practical tips that will help keep your equipment in excellent condition and ensure its reliable operation throughout the season.
If you have looked into your air conditioning station, regardless of brand, it has a vacuum pump. As with most mechanical systems, it requires oil lubrication, which means regular oil changes according to a specified service interval. Depending on the manufacturer, pump size and intensity of its use, the oil should be changed according to the instructions - that is, after a specified time (usually once a year) or after the station or pump has worked 60-120 operating hours.
The oil change itself is not a big challenge - there is an oil drain plug under the vacuum pump, and we add new oil through the top filler, remembering that the level should be ¾ of the sight glass level. Of course, we use oil dedicated to vacuum pumps for this.
Advanced Tip: If you notice in the sight glass that the oil has changed color, for example:
If the vacuum pump is equipped with an oil vapor filter, it should also be replaced.
The next step we should take is to replace the dryer filter and (if the station is equipped with one) the pre-filter. Their task is to clean the recovered 
Pre-filter for SUN stations (A: 0185901) refrigerant, so that it is suitable for use in subsequent services. Filter types are dedicated to specific station models and very often have special service codes applied to them. These codes can be used to reset the inspection in the air conditioning station and confirm that the filter has been replaced, and thus our device will start counting the next service interval. The tightness of the connections inside the station is also subject to verification. We can use a leak test spray for this. We spray all the connections of the tubes and hoses, making sure that the refrigerant does not escape. We also check the correct operation of the scales (refrigerant and oil). The easiest way to do this is to load the tank with a precisely defined weight. If the change on the display is equal to the weight we used - our scale is working properly. If not, we refer to the instructions and we must necessarily carry out calibration. We also need to test the quick connectors at the end of the service hoses. The condition of the A/C system in the vehicle often determines the result of the leak test. Dirt, abrasions or blocked valves disqualify the quick connector from further use.
It is also recommended to update the station software (not to be confused with the database). In case of doubt, it is worth contacting a specialist. The Autos Workshop Equipment Department will be happy to help, just send an email to: ww@autos.com.pl .
If you have successfully completed the above stages, it means your station is ready for the next season!
Need a new air conditioning service station? We'll be happy to advise you on which one to choose.
SUN Dualgas Station 
Siberia Station Series 8S 
TEXA Konfort 705 Station
