There’s no breaking mine loose by hand. I’m a very stout guy and I very seldom can’t break something loose by hand that was tightned by hand without a tool. I have tried and tried, and tried, and tried. I can’t get no satisfaction! |(
have you tried using a screwdriver on it?
I only tried because you asked 
Well I sent this thread to ThruNite. Maybe since others are saying the same thing they will fix this crap. I said something to Rick the other day on the phone about taking the tailcap off. I told him I’ll bet yours is the same way and won’t come off like mine. I was right. I wonder how many dang TN31’s were made that have this same problem with the cemented in concrete tailcap.
I will correct what I said earlier. mine DID have loctite on it. I just didnt spot it when yanking it apart earlier
Nope. And I’m not going to marr up my light over something they done in the manufacturing process that in my opinion wasn’t very smart. And that’s putting it mildly.
I can’t find a screwdriver that will fit through it that won’t bend….
fair enough, I must have been very lucky then
Either way, I don’t need it apart!
I have the TN30, it’s stuck too.
I’ve PM’d other member’s asking about their light.
All of them are locked.
My tail switch was faulty and it was a real struggle to get the tail cap off eventually managed it by putting a screwdriver through it but it was bloody hard. Eventually got a replacement from them and was supprised to find they sent me the entire switch assembly including the battery tube. I decided to check it over before use and managed to unscrew it by hand. The two different assemblies look like they are manufactured by different people. One has a slightly thicker side wall and cleanly removed anodising around the threads but was very hard to unscrew, it had loads of white loctite substance all over the threads. The replacement had a thinner side wall, unscrewed easily with only a small amount of blue loctite on a few threads and didn’t have all the anodising removed.
You could try warming it over a kettle.
Try this and see if it works.
Put a screwdriver through the lanyard holes, the thickest one you have that fits.
Open up your bench vice and pad the jaws with cloth to prevent scratches.
You want it open enough that the tailcap fits comfortably without touching the jaws.
Put the tailcap with screwdriver into the vice jaws with the left side up on top, and the right side under the jaw.
This should give you maximum purchase and allow you to turn the battery tube with a good grip from both hands.
If you can’t budge it like this, then it probably doesn’t need to come off 
Well at least they didn’t Loctite the other end.
I sent them this post with the instructions and this is what they said:
The instructions you’ve posted to me have a slight language problem. What they refer to as the tail cap, is actually the whole rear assembly. If you in-fact remove the tail-cap you wouldn’t be able to access the battery carrier that way. Removing the tailcap is essentially the same method, you unscrew it counter-clockwise, however it may be difficult to do so depending on how tight they attached it from the factory. Hope it helps.
Mine apparently is glued too! Hope they never ever fail, also has anyone been able to open the head assembly by unscrewing right next to the control ring? This would give direct access to the led without removing the reflector.
LOL I love China.
No problem, 10 dolla, slight issue;
The chinese are the best capitalists on the planet Earth…
Yeah the tail cap, not the switch.
Read the origional post, we are all talking about stuck tailcaps
Here’s what ThruNite keeps telling me.
thanks,we’ll pay more attention.
I hope they do pay more attention. These guys are regarded as selling quality goods but it seems like these are just well marketed - well performing - expensive “cheap” tat.
Maybe they’ll update their documents and change a few processes. Hopefully they’ll listen to their customers.
of manly behavior. Try a pipe wrench. It’ll come off. One way or the other… LOL
A strap wrench would do less Damage, or find a carpenter with hands of steel