Chicago Pneumatic 1/2" Air Impact Wrench "put detergent" Questions

how much oil to put in a rebuilt impact? rebuilt the impact. how much and what type of oil to put in the barrel of the impact gun? non detergent 30 weight 1 ounce

put oil in the hammer case?, there is a small plug up front. Some of the early CP797 used grease, the current models use oil. To identify your tool look at the front of the hammer case where the anvil