Where does the oil go in an air impact gun and what does the airline connect to on an Air at 1700K impact gun

https://www.manualslib.com/

The image the link above shows an airline connector ******* directly into the airwrench. This isn't best practice.
Best results are obtained by fitting the largest diameter hose tail available for a large diameter hose and then fitting a yard of hose and then the airline connector.

As the hopper gun does not use oil, you are either spraying an oil based material which is separating in the hopper, or you are using a compressor that is leaving oil in the airline; this could happen if the compressor is worn and oil is leaking past the piston into the air.

C.P. recommends 3/4 oz. of SAE30 oil in the hammer (clutch) mechanism, and SAE10 for the air motor.

If you are just oiling the gun,hold it upside down and squirt some oil ine the air chuck fitting.(I just use an empty bottle of my wife's hair dye filled with ATF-it's cheaper than a can of "air tool oil".If you are referring to the grease fitting for the impact mechanism,look for a small hole with a captured metal ball.The only tool I found to fill this is a specially designed miniature grease gun(got mine at Sears).

If debris has been entering tool over time, the vaines will not make good contact to cyl. wall. Flush out gun with kerosine or diesel fuel to clean interior of the gun. If dirty, the first flush will be very dark and every flush after that will become more clear. After good cleaning/flush, add tool oil and retest tool. If tool begins to hit but not full power, you may have to open tool and remove scratches from the vaines. Make sure that you use the largest quick connect fitting possible. Sometimes the tool will loose power if you are using 1/4 inch connections and the vanes are not in good shape. Good luck

Just put 3-5 drops of air tool oil down the air inlet coupler and then run the gun for 5 seconds. Do this everyday that you run the gun for best results.

most of the problems accure from being dry try 2 or 3 drops through the air intake fitting every so often depening how much you use your air tools, it may be time for a new one but i would try the air tool oil first before bying a new one, i hope i helped.

Make sure that you have at least 50 psig of air pressure before you attempt to troubleshoot your impact. 70 is better, 90 is perfect. Impact wrenches are powered by internal sliding vanes, which can sometimes stick. There are a couple of ways to get it going again. Try 1 before going to 2, etc,:
1. Spray W-D 40 or a similar oil into the impact, while you are holding the trigger down. Give it a good shot. Connect the hose and pull the trigger. Tap the sides of the gun with a plastic hammer to help free up the vanes. Repeat. Normally, this is enough to get you back running.
2. Place it in a bucket and cover the gun with W-D 40. Work the anvil end and trigger to work the oil deep into the gun. Ley it soak 1 hour, and repeat the process, working the oil in, and the air out. Remove it from the oil, and drain the oil back into the bucket by holding the trigger down. Hook up the air, and blow it out.
3. Remove the cover on the head that covers the vanes. Make sure that the vanes will slide freely, and that all gaskets and "O" rings are in good condition. If you note any dry areas in the inner parts of the impact, lubricate with W-D 40, and reassemble.
4. I'm all out of ideas.. If that didn't fix it, I'd go get a new one.
Best of luck, --W/D--

Use a good grease. Don't pack it, just lube the parts. If it is all together, put in about half an ounce of air tool oil through the plug.