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Showing results for tags 'compressor'.
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I have an ancient craftsman 4 horse compressor. It won't die. I want to replace it, but it won't die. I put it in a rather inaccessible location and ran hoses and a remote switch. Draining it was a PITA till I figured out that there's no harm in a little leaking air from the drain plug so I just leave it cracked a scosh. So I don't drain it.
My old compressor that I bought back in 2002 finally died. I bought from Home Depot on sale and it was a 22 gallon upright oilless Campbell Hausfield for about $150 on sale and it came with bunch of tools like an air ratchet and air chisel that I have used many times over the years. I originally bought it so I could spray texture on the ceiling of our condo as I had scraped off the popcorn ceiling and the compressor had enough SCFM'S to handle it. I used it a lot over the years without a problem up until a few weeks back. It got a crack in the copper line that went from the pump to the tank so I repaired it and it all worked fine. Then I heard pop and a hissing sound which I found was a cracked threaded tube into the tank where the valves were. So after pulling it apart it was obvious that it was not going to be repairable. So time to get a new one. As much as I would have loved to go with a higher end oiled unit, I just did not have the resources to do it or justify it to my wife. So I settled for a smaller oilless unit from Home Depot for just under $150 including the extended 2 year warranty so it will be covered for 4 years. It is only 8 gallons and puts out enough SCFM's to cover everything I need it to do at home and in my shop. It is considerably more quiet than my old one and takes up less space and it cycles through quickly.
The air compressor comprises of four basic components, namely: Electric motor, which powers the compressor pump by driving a pulley and two belts. The power is transferred from the motor to the pump via a crankshaft and a flywheel. A magnetic starter is also installed here to prevent damage to motor due to thermal overload. Compressor pump, which compresses the incoming air, and then discharges it into the receiver. In case of two stage compressors, the air usually needs to pass through two cylinders. First, a low-pressure, larger cylinder, and then a higher pressure smaller cylinder. Receiver tank, which stores the compressed air, and the receiver valve which prevents the air from flowing back into the air compressor pump. Pressure switch, which shuts down the motor when the compressed air reaches the receiver tank’s factory-set limit. However, air compressors require installing a few more components for effective and efficient operation. They include: Air dryers and after-coolers, to cool the hot compressed air, and prevent the system from overheating and consequent damage. Air filtration and moisture removal pipelines, which need to be installed for draining out the condensed moisture from the air compressor system before it reaches the tool. Air lubricator for use in tools that require lubrication. Be careful not to use them for those that don’t, since you can risk contamination. Pressure gauge, which measures and regulates the air pressure to tools. They require being installed in drop lines for each tool. Shut-off valves need to be installed in each drop line so as to isolate the accessories from the air compressor for servicing purposes.