[Ed3443]

I purchased a Makita Mac5200 air compressor primarily for a pin nailer and finish nailer but also for the occasional framer or small impact wrench. I am aware that the tank is too small and I plan on adding a second tank at so point.

My question is how much air loss should you expect from a tank over time? I am noticing that after about 8 hours with the machine unplugged it is going from 135 PSI to 125PSI. Eight hours more and it is 80PSI and additional 8 hours it is at 45PSI. With an additional 8 hours it is at 25PSI. Is this normal? Does it take a while for all the parts to seal?

Thanks guys.

 

[Ed3443]

Thanks Guys. Sorry I did not make my self clear. I am not using it with a pin nailer or any nail gun at 135PSI. 135PSI is the unregulated side. I am aware that you should drain the tank after use. I just did this as a test to determine if there was any air leakage. The Makita only has a 5 gallon tank which is fine for nail guns--but for an impact wrench it is on the small side. I figured I would add a 11 gallon or larger tank if I use it with an impact wrench. It is a cheap compressor $299 at CPO and is really impressive; rated to 140PSI and 6.5CFM @90 and 6.9 @40PSI. Sound-wise it is loud rated at 90 decibels, but when I tested it in a closed garage it was 77-80 right next to the machine.

Thank you both for your concern--I appreciate that. I know people have been criticizing this forum as of late but I think it is awesome.

Thanks Stick for the advice about kid's bubble solution. I am using Hitachi NP35A @80PSI.

Back to my question--is it normal to have that much of an air lose over a 24 hour period. I have heard stories of compressors keeping pressure for a long time--or am I expecting too much? I guess the question is--do I have an air leak that I should chase down?

Thanks guys.