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Super Member
About witness marks. I have seen them done incorrectly a multitude of times and have had to take alcohol to erase these marks done w markers from a previous assembly point.Stuff is way too expensive to not take care of it. You’re probably right though, everyone yaps about scheduled maintenance but little about day to day.
While walking up, scan the machine and ask “does anything look out of place/lop sided”, fluid leaking or puddles on the ground? Torque marks on wheels, loader mounts, etc? You gotta pop the hood and check oil level, coolant level, hydraulics, scan for leaks, belts, funky hoses. Yes, it takes a few minutes, minutes that aren’t wasted time.
Do you (or the boss) let your operators jump on and not check? What delays are caused when the piece blows the motor or pump when no one bothered to check the oil(s), fluid(s), belts and hoses?
It is not the body or hand position that dictates the mark. I have seen witness marks follow more like what you’d see on an analog wristwatch that uses just slashes for numbers.
Whichever direction you choose to reaffirm or replace them, be sure to make them all parallell to the first mark you make.