Fenix LD20 R4 thread not smooth? help!

yliu · May 17, 2011

I just recieved my LD20 R4 today.

I've noticed when I screw the head, the threads were not smooth. I put some lubricant on it, still not smooth.

It feels like there is dirt or something on it, but I washed it with clean water, lubricated it again, but it's till not smooth.

Have you guys experienced the same with your flashlights? How do I make them smooth?

Woods Walker · May 17, 2011

Every LD10/LD20 or L1D/L2D I have ever seen had smooth threads. I would return the light.

aau007 · May 17, 2011

Did you try using a sharp toothpick and run it thru the threadings on the tailcap and body? If there are dirt trapped in there, lubing or oiling don't remove the dirt and you will keep hearing the dirt grinding inside the threads.

Nake · May 17, 2011

Use an old toothbrush to clean the threads.

yliu · May 18, 2011

I cleaned it with WD-40, then ran a toothpick through. Now, its smoother, although still not as smooth as my TK20 threads.

CarpentryHero · May 18, 2011

Is it that it feels stiff? Or they look rough? Maybe it's The o ring?

yliu · May 19, 2011

After cleaning it with WD40 3 times, and running a toothpick through twice. It's perfectly smooth now!

Thanks guys for the help!

CarpentryHero · May 19, 2011

Glad to hear it :thumbsup:

Thefo · May 19, 2011

Since WD40 is thin and solvent you should re-lube the O rings to replace what it took off. This will help to protect the O ring from shredding and waterproof the light.

yliu · May 20, 2011

Thanks! I did relube it.

aau007 · May 20, 2011

What did you think you picked out from the threads? I believe they must be fine metal grinds left over when they threaded the tube or tail cap.

yliu · May 21, 2011

aau007 said:
What did you think you picked out from the threads? I believe they must be fine metal grinds left over when they threaded the tube or tail cap.

It could be the metal grinds, but I didn't see anything since all of the stuff came out with WD-40.

I was worried that the threads are bad, but luckily it's fixed now.

Fenix LD20 R4 thread not smooth? help!

yliu

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