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Troubleshoot Mini Air Compressor [2012-02-15]

 

A Mini Air Compressor is one of the most important energy consuming machines in any industrial procedure. It is no bolt from the blue that through the rise in demand for premium air compressors, a number of manufacturers are ongoing to just right the excellence and values for these air tools devices. You can hit upon in any case a dozen incredibly renowned and cherished air compressor manufacturers at Tools Mark. The right air compressor can endow with decades of important service. Other than, by way of so many existing styles, sizes and choices, how do you make out which air compressor model will best suit you requirements? This commentary gives the acquaintance you will require to assist conclude the top air compressor for your use.
1 Start the vehicle and turn the air on. If there is a scraping, tinny sound just when the compressor is turned on that goes away as soon as it is turned off and the compressor is still good, the clutch needs to be replaced. The clutch can be replaced without discharging the A/C system if it is accessible. Just remove the belt and leave the compressor mounted to the engine.
2 Check the clutch operation if it does not come on. Apply power directly to the wire on the top front of the compressor. If it comes on, then there is an electrical problem to be traced. If it does not come on, replace the clutch.
3 Listen for a rather loud knocking noise as the compressor operates. It the noise goes away when the air is turned off, the Compressor For Car is about to self destruct internally and should be replaced as soon as possible. Do not use the air until the compressor is replaced as the vanes inside the compressor are coming apart and the more it is run the more material it will release into the system, causing a blockage. This could get very expensive if all the parts need to be replaced in the air conditioning system.
4 Hook up the gauges to the A/C system and turn the air on. If the compressor does not come on, check the pressure on the gauges. The blue or low side should be around 75 to 80 pounds in order to operate the low side switch to kick the compressor on. If the pressure is below 75 pounds the system needs to be charged in order to get the switch to activate, allowing the compressor to work. The low side switch is installed so that if the pressure (as in a leak) drops, it shuts the compressor off, preventing damage to it. If the pressure is correct and in range then an electrical problem is present.
5 Check the low side switch for power with the air on. If there is power, jump the connector and see if the compressor comes on. If it does, the switch is bad. If there is no power, check the fuse for the air conditioning in the fuse relay box under the hood. Check the relays by pulling them out and checking the terminals for power at two terminals. If there is power at only one terminal, the problem is inside the cabin. If it has power at two locations, the relay is bad.
6 Check the gauges if the air comes on and does not cool. The proper readings will vary a little with the outside temperature, but should be close to 25 to 40 pounds on the low or blue side and 210 to 250 on the red or high side. If both sides are low and the compressor is working, the system needs to be charged. If the high side is low and the low side is high, the compressor is no good. If the high side is high and the low side is close to normal, there is either a blockage in the expansion valve or orifice tube, a radiator fan not working or a plugged up condenser.
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