CS4 - maintenance after no use for 2 years?

I purchased a CS4 in 23, did the recommended maintenance after the first 4 hours of use but since then it has sat unused for about 2 years. Before I fire it up again any advice as to maintenance it may or may not need after sitting that long?
Change the water preferably, pump it out. Check the grease knob. Remove the cover and inspect for cobwebs or dust and just clean like you would a computer.
 
Change the water preferably, pump it out. Check the grease knob. Remove the cover and inspect for cobwebs or dust and just clean like you would a computer.
what you said is great, I'd add to not use water.. either use a good quality extended life antifreeze or use regular concentrate antifreeze with distilled water, basically the same thing.. extended life antifreeze is that because it's thinned with distilled water.. you should be good for 5 years between changes.
also note, I would try to not leave it set for that long..I'd try to run it at least 4x per year, even if you don't compress anything, just cycle it for a minute to keep the lubricant around and all corrosion from inside the cylinder..
I used to live where it was extremely humid.. would rain inside the metal barn during winter even cold weather.. and well especially if it frosted.. once had a small engine.. maybe a rototiller.. and it seezed.. during one especially damp winter.. pulled the spark plug , one squirt of WD 40 left it set all day and then very slowly pulled the cord with the ignition off and then it was fine so I started it up and never let it sit through the whole winter
had a neighbor with a similar experience with a shop compressor too..
Mark
 
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what you said is great, I'd add to not use water.. either use a good quality extended life antifreeze or use regular concentrate antifreeze with distilled water, basically the same thing.. extended life antifreeze is that because it's thinned with distilled water.. you should be good for 5 years between changes.
also note, I would try to not leave it set for that long..I'd try to run it at least 4x per year, even if you don't compress anything, just cycle it for a minute to keep the lubricant around and all corrosion from inside the cylinder..
I used to live where it was extremely humid.. would rain inside the metal barn during winter even cold weather.. and well especially if it frosted.. once had a small engine.. maybe a rototiller.. and it seezed.. during one especially damp winter.. pulled the spark plug , one squirt of WD 40 left it set all day and then very slowly pulled the cord with the ignition off and then it was fine so I started it up and never let it sit through the whole winter
had a neighbor with a similar experience with a shop compressor too..
Mark
Yes that's what I meant by change the water, I actually just changed mine 2 or 3 days ago. I hadn't used my compressor for about 3 or 4 weeks. And I decided to take a look at the water. And it had stuff forming in it, even though I had added distilled water and water wetter. When I pumped the water out there was dirt at the bottom that I cleaned up before pouring new one again
 
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Thanks guys, I did use distilled water / water wetter when the unit was new. What's involved with checking the grease? I remember giving it a turn after the first 4 hours. Is it just a matter of pulling the grease cap and checking how much grease is in there? I also checked/cleaned the relief valve under the burst fitting at that time.
 
Would someone kindly explain to me the reason for changing the water?

I have an Omega Trail Charger, which I believe is a fairly similar design, and it has been sitting rarely used for about a year and a half. Before that it was used fairly often for a couple years. Anyway, I have never changed it's water. Upon inspection, it still resembles clean water. Has it's thermal cooling properties changed over time?