How to drain oil emglo k models - Dewalt d55151 factory reconditioned emglo heavy - duty 2.5hp 4 gallon Electric hand carry compressor

I just rebuilt my Emglo AM78 4CHV, new pressure switch, unloaded, check valve, aftercooler, and changed the #30 oil, It takes 4oz.
Runs like new after not cutting in/out correctly and purging air before reaching 125 psi. Kicked it down to 115 max psi via main spring setting. Don't need 125 for trim nailing and siding.
FYI don't use cheaper generic 125 psi pressure switch from Amazon!!
use Jenny M4-1247 (140-1074-01)

Without knowing the exact model number, it looks like 4 oz. You can buy here for less than $6.00.
Bostitch CAP2000P OF Air Compressor Parts

There are four screws that hold the end cap on the pump. The fifth screw at the bottom, middle of the cap is the oil drain plug.

Dewalt claims that motor oil will cause carbon deposits to form on piston/cylinder head and on the inside of the discharge tube. I see carbon deposits on most all compressors that come in for repair. The carbon is not reason for repair. Usually forgot to add any oil causing rod failure. I believe that most compressor oils are just mineral oil. If the climate in your area is moderate, and you do not use the unit for 8 hours a day, motor oil will work just fine. The crank is steel and the piston rod is made of aluminum (no bearing shell). What makes the unit last longer is change the oil more often (holds very little oil). Good luck

Need to use air compressor oil it is available at you local hardware store in the tools department.

Dewalt recommends using synthetic pump oil, however if you only use the machine occasionally and not in a commercial setting, standard compressor oil will work great and save you money. Synthetic oil will last longer and can take much higher temperatures without breaking down. Lowes sell the kobalt brand of compressor oil and sells for about $3 for standard and $7 for synthetic. Home depot sells campbell hausfeld brand but equally as good. Auto parts stores also sell a line of compressor /pump oil just watch pricing for your needs. If you can't find compressor oil, non-detergent motor oil works just fine. Good holidays

Hello,

Yes you can use synthetic oil in you compressor. Emglo just has their name on it. Its ok to use.

Hope this helps, Matt

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

What are you putting the oil in? The compressor takes regular non-detergent oil, and it should have a dipstick or a site glass. The guns on the other hand, take the pneumatic oil, and most of them now days, don't even take oil. Only the older ones. I haven't changed or touched the oil in my compressor in 20 years. Any of them. Check it out.

any small compressor oil will do like dewalt,quincy....or 30 sae oil

use sae 30 non detergent oil in this compressor let me know if you got any other qeustions