TNT maintenance

Joined
Mar 3, 2000
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2,785
I got this Mayo TNT, bead blasted finish S30V blade (with wear marks) and wanted to refinish the blade myself. Couldn’t find any info online about how to disassemble it. I asked Tom and he told me how to take it apart (thank you Tom :thumbup:). I’m posting this for the next one who needs this info.
It is quite easy, you need a good quality T8 torx screwdriver for the pivot screw and a good quality T6 for the others. I use plastic film on the screwdriver not to scratch the screws, but that's just me.
You take out the pivot screw FROM THE CLIP SIDE (important). Also take out the stop pin screw and spacer screws FROM THE CLIP SIDE.
Use a wooden or plastic object (the wooden spoon in my case) to gently pry the handles apart. I did this from the spine side not to force the lockbar.
Before assembling it I cleaned everything and put a bit of oil on the pivot, on the blade side of the washers and in the detent ball hole. Be careful to clean the inside of the pivot hole on the blade, you don’t want gritty stuff there.
Reassembly is quite easy if you take your time and nicely fit the two halves before pushing them closed. You will need a bit of loctite (or equivalent) for the pivot screw. As always with loctite, don’t put too much or it risks to block your pivot when hardened. Adjust the pivot tension before the loctite hardens, you should go for no blade play and smooth action. If it’s not smooth you did something wrong or the pivot is screwed too tight. If it has blade play the pivot is loose. When the pivot is adjusted correctly, you should have the blade nicely centered too.
I satin finished the blade using 1800 grit sandpaper (micromesh from Dick GMBH), I like the result. Not as nice as Tom’s finishes ;) but it’ll do.
Hope it helps someone, here are two pics, disassembled and assembled.


53_tnt_disassembled_medium.jpg

53_tnt_flat_front_medium.jpg
 
One thing that those pictures really reinforce for me is how beautiful the TNT is in terms of the simplicity of its design and construction. Two handle slabs, four screws, two washers and one blade. Nothing crazy or complicated, just a folder with incredible form and function from nine physical pieces.

God bless you for taking yours apart, I don't think I could do it with mine.
 
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