Ive cleaned this old girl up and got her running. Builds air great but cant get manual or parts list for this old of a model. Oldest IR had was 80s completely different. Looking for how the check valve system works is it only by the reed valves or should i have a check valve on the input bung at tank, looks to be just a bushing with a 90 to the 3/4 copper up to the cylinder no check at top either. Losing about 20lbs/hr. Hear a gurgling noise through filter.
