Equipment Maintenance: Why Witness Marks Matter

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  • Опубліковано 17 гру 2024

КОМЕНТАРІ • 9

  • @M1911jln
    @M1911jln 3 місяці тому +5

    Witness marks help you know that the screws holding the gun to the plate haven’t moved. But they don’t help you inspect the screws holding the plate to the slide. I suggest that during your daily inspection you also check to see if the plate itself is loose by gently trying to rock the optic.
    Not long ago I was getting my competition gun ready to go when I noticed that the optic was freely rocking side to side - the screws holding the plate to the slide had come loose. I hadn’t properly put thread locker on those screws so my bad…

    • @SplashOfOrange
      @SplashOfOrange 3 місяці тому

      What inlb are you torquing the plate and optic screws to? I've been defaulting to 15 inlb which seems the standard yet my plate-to-slide screws have come loose a few times. I probably need to apply a fresh dot of loctite and make sure the mounting holes are clean of lubricant.

    • @M1911jln
      @M1911jln 3 місяці тому +1

      @@SplashOfOrangeI follow the instruction video from CHPWS.

  • @GaryASobek
    @GaryASobek 3 місяці тому +2

    When doing aircraft maintenance, we call your "witness marks" torque strip. It lets us know that the fastener has been tightened correctly and has not backed off over time.

  • @gunfighterman1-5
    @gunfighterman1-5 3 місяці тому +1

    Witness marking or wear points to me is the wear marks internally on all my weapons, whether pistols or long guns. This is where I'll either apply oil or grease depending on the area of movement.

  • @SplashOfOrange
    @SplashOfOrange 3 місяці тому +1

    What's the blue stuff LTT uses for their witness marks, and how do you cleanly get it off when it gets smeared from use and you need to update the witness marks? My PX4cc plate for example has come loose several times and the witness marks on the original 3 plate screws are blurred and useless now as points of reference, not to mention I can't see them except a little of the front one when the optic is on anyway. I did just order a new set of screws from you because the original heads have started to strip, the bit wants to slip out before I can reach the typical 15inlb. For that matter, what inlb do YOU recommend for the PX4cc plate and optic screws? In my case I have your EPS plate. Thoughts? Thanks!

    • @M1911jln
      @M1911jln 3 місяці тому +1

      @@pistolpete1I haven’t found a paint pen that works worth a darn. The Sharpie paint pens don’t put out any ink, shake shake shake, depress point, don’t put out any ink, repeat, repeat, then a huge blob of paint all over the place…

    • @snowgorilla9789
      @snowgorilla9789 3 місяці тому +1

      There are "markers" the aircraft industry uses
      CROSSCHECK TORQUE SEAL various colors