Greg7683
Member
My three mistakes I learned from was 1) Never grab a moving sawzaw blade while it is still in motion. 2) Never put your forehead up against a 3 faze 480V block. 3) Always know where your thumbs are when using a table saw.
Several stupid things over the years.
Working for yourself, learn that there is a time NOT to answer your phone. They will be OK for another 5 minutes. Let your kids finish the story they are telling you.
5) Never believe your friend when they say just take one hit you will like it....
The question that arises from this statement is why can't you believe what they're telling you?my biggest mistake and hard one to avoid for me is that i believe to people from maintenance and to operators when they are describing the problem
The question that arises from this statement is why can't you believe what they're telling you?
To operator: did it just stop, or was there any unusual noises.
Operator: there has been a grinding noise getting louder every day for about a week. Today it was really loud, then it stopped.
This sounds like an obvious problem with the program.
Had my electricians install a braking resistors on some large-ish 200 HP Toshiba drives.
I commissioned the drive and off we went. We noticed that there was not much braking action to be had. I was on the phone with Toshiba support about it and the phone tech says , see if the breaking resistors are warm?
I reached under the resistors that were suppose to be in a protected cage to get closer to see if i could feel the heat. My electricians forgot to put the bottom of the cage on and guess what i reached up and touched.
The actual resistor which was the DC bus of the drive.
600V DC will really wake you up.
Lesson: Dont assume your electricians did his job correctly and look before you commit your hand to something. Was my first commissioning and last time i will ever do that. Happy to still be here with only a mild bruise on my hand from the incident but sure scared the hell out of me.