Rebuilding a Humphrey 8-D-1 air cylinder (ram), is it possible?

[William the Third]

I'm going to guess no, since there doesn't appear to be threads on either end of the caps of the cylinder. One cap does have wrench flats, but I'm betting those are for installing the air cylinder/ram, not disassembling it. My mini-Stroker (sometimes) has a small leak around the ram shaft. I've tried forcing grease/oil into it, but the results were poor. Anyway, they're not too expensive, so I've just ordered three "New, open box" ones off eBay.

[XEMON]

I believe they are crimped together.

[Jordan]

Non-serviceable.

I'm surprised how long they last, actually... the one in my Hurc is at least 20 years old, maybe older.

[William the Third]

So I got the new rams a while back, and finally got around to installing one. When I was first installing it, I was using the banjo fitting to install it. I ended up threading it in too far, and I got it stuck. The banjo fitting just unthreaded when trying to turn it back, so I really had nothing to grip. I ended up using needle nose pliers, locking forceps (which I ended up breaking, further pissing me off, as they used to be my fathers (he used them as roach clips)), and a slotted screwdriver. I finally got it out, but not without damaging the face a bit. I was able to clean that on the lathe with no problems though. I decided to make a tool to install/remove the rams. I took a cheap 3/8 nut driver (this one specifically), grabbed my Dremel, and started cutting. I wish I had a mill, as it would have been easier, came out better, and looked nicer, but you've got to work with the tools you have. It's not pretty, but it's functional.