IR 118Max Air Hammer...Disassembly??

[OkieRocket]

I have an Ingersoll Rand 118Max Air Hammer. I bought it in 2015 and have only used it maybe 5-10 times....Maybe 1-2 hours on it, Max.
It had stopped hammering and was just blowing air, so I took it apart.......thinking the Valve had "stuck."

Well...Unfortunately, since I couldn't find any online info. (IR or anywhere) on "how" to take it apart, I did it myself...MISTAKE....In spinning the inner body to "unthread it," I broke the Rear Spiral off of the phenolic?? Housing (IR calls it the 122Max-304 "Cushion.").

I need to Order this Part:


I got the internal body of the Hammer out on the Bench and for the life of me, I can't figure out how it all comes apart??.....Can someone tell me the "right way" to take it apart, so I don't do any more "carnage" to my Tool?

Thanks.
Harold