My 25 year old NPK E265 (224A) 10K breaker finally split the lower bushing housing. The lower bush just fell out. NPK no longer offers it. Any lead or hints as to a dismantled that may have these (this) in a graveyard somewhere. I just resealed it, and, internally, it has a LOT of life left in it. I saw the crack starting in the lower housing, but, didn't think it would fail on its first day after reseal Chose not to rebush due to crack. Just hoping maybe somewhere out there is a breaker graveyard.
Have you reached out to NPK? They're pretty proud of their parts. They may have a used salvageable piece. It's worth a call.
Ive been on a first name basis with NPK personnel for 25 years. Definitely not available there. And Ken was calling around for me. They fitted a GH15 lower to my E220 when that one cracked.
Take this with a grain of salt but we welded up a cracked tool holder on a 2000lbs npk about 15 years ago and it's gone through a rebuild since at this point you got nothing to loose On there older hammers npk would give a procedure for welding up the inside of the body so it's not much different I would guess someone's been prying a little with that hammer or holding it in a bind while hammering