Page 1/4  >  >>
User Rank
Re: Lock Out/Tag Out
whaldas   4/16/2012 8:32:28 AM


You are welcome, Rob.


Rob Spiegel
User Rank
Re: Lock Out/Tag Out
Rob Spiegel   4/13/2012 4:26:31 PM
Thanks, Whaldas, this all makes sense. These procedures would certainly have prevented the problem addressed in this posting.

User Rank
Lock Out/Tag Out
whaldas   4/11/2012 9:29:05 AM
In the first place locking out the run button is a NO-NO  - Locking out the control circuit is NOT AN ACCEPTABLE METHOD.

MUST DEENERGIZE AND ISOLATE THE POWER CIRCUIT BY LOCKING OUT THE BRANCH CIRCUIT MAIN DISCONNECT SWITCH OR CIRCUIT BREAKER IN THE OFF POSITION. (If there is a disconnect sw. by the machine to facilitate maintenance work, it can be used to lock out)


DOUBLE CHECK THAT THE UNIT IS indeed deenergized before starting work.

Check written LOTO procedure of the facility where work is being done, but one can always insist on and use one's  won lock.

Refer to NFPA 70 (NEC), NFPA 70E etc.

All technicians working with m/c and devices that utilize Kinetic and/or Potential energy (Electrical, Mechanical, Hydraulic, Pneumatic, spring energy etc )must be familiar with the equip. and study how to completely isolate all energy from that equipment they are working on.

Working on energized devices is a different ball game altogether, and not addressed here.


User Rank
Re: Running machines are to be respected.
notarboca   4/6/2012 11:43:20 PM
cvandewater,  I too know of commercial divers who will not work on a ship until Tag Out Lock Out procedures have been followed and all keys are in the dive leader's wet suit.  Ya gotta do whatever it takes!

User Rank
Running machines are to be respected.
cvandewater   3/29/2012 1:36:05 PM
One friend was a promising automotive mechanic until the day he got his right index finger caught in the serpentine belt. He was fired from the place where he just had started (after his education as automotive mechanic) and could not find work due to his handicap....

I heard many years ago that the diver crews working on a ship will only dive after receiving all ignition keys. Don't know if they also were tagging.

User Rank
I saw a truck driver lost his thumb
rcwithlime   3/26/2012 4:59:56 PM
from reaching in with engine running. Got caught in steering belt.

Called ambulance, placed thumb in cup cushioned with ice and off he went.

Better safe than sorry.

Jack Rupert, PE
User Rank
Re: LOckouts and the defeating of same.
Jack Rupert, PE   3/25/2012 7:25:40 PM
That company needs a good safety overhaul or something.  The fact that somebody even had access to remove the lock is scary in it's own right.  I was at a location once where a guy forgot to unlock.  The machine was left inoperable until they reached him at home and made him drive an hour back to remove his lock.

Rob Spiegel
User Rank
Re: Even scientists got safety training
Rob Spiegel   3/22/2012 7:29:12 PM
That sounds like a good set of safety procedures, Jon. That should be the usual practice. I was really quite surprised by this Made by Monkeys posting. I would think if nothing else, employees would be careful with lock-outs simpley out of concern for fellow employees.

Jon Titus
User Rank
Even scientists got safety training
Jon Titus   3/22/2012 7:03:05 PM
When I started work at a DuPont research lab back in '69, the company had a safety course for all new employees. We fought simulated chemical fires, put on Scott airpacks, practiced firts aid and learned about lockouts.  We couldn't even take jars of chemicals from the store-room unless we had a rubber bucket in which to carry them. The company stressed safety at every turn. I saw some electrical apparatus with lockout upon lockout when many teams were on the site. As others have said, never trust someone else to ensure your safety.

User Rank
Re: When you're right, your right.
Keldawwg   3/22/2012 6:25:24 PM
This article reminded me of another thing that I had happen to me twice, and an acquaintance of mine lost his right hand...

When I was 16 I got a job at a Shell gas station near my parents house... This was back in the days when full service gas stations still existed in California. I was a gas station attendant/service truck driver (We were right next to a large shopping mall, and several times a week someone would leave their lights on and need a jump start...)

Anyway, we would always ask if we could check under the hood... We checked oil, radiator overflow tanks, power steering fluid, etc... We would check antifreeze if asked, and also the battery if asked (Sealed maintenance free batteries were not common in those day, I think only Delco had them that I ever saw.

Anyway, twice I would be under the hood checking things and right when I was reaching for the power steering cap, the idiot behind the wheel (1 woman, 1 man... So it was evenly divided between the sexes as to who were the biggest idiots...) started the car!

Most power steering pumps were fairly buried, and frequently you had to reach through an alternator belt to take the P/S cap off... That's how the guy I knew lost his hand...

I would ask if they wanted me to check under the hood, and if they said yes I asked if I could have the keys. After I gave the keys back, I would ask if they wanted their transmission fluid checked, because the car had to be running to do that.

 I had several people get really mad at me, but when I explained why most were ok with it... I had maybe 10 or 15 people come back and complain to the station owner that I wouldn't check under their hood unless they gave me their keys... The station owner gave those complainers coupons for a discount on an oil change, and he would always come over to me and tell me I had another complaint... Then he would stare at me for a five count, and say that at least when he fired me I could hitchhike home with my choice of which hand I held out...

The thing people really need to remember is that there are a lot of idiots out there, and you have to protect yourself from them whenever you can...


Page 1/4  >  >>

Partner Zone
Latest Analysis
FPGAs are the glue logic in today's systems, but what they glue together are a variety of diverse sub-systems with different interface requirements.
Enterprising Tesla Model S owner Steve Sasman seems to have figured out a way of recouping some of the cost on his car by renting the trunk out on AirBnB, the room/house rental website.
Everyone has had the experience of trying to scrape the last of the peanut butter or mayonnaise from the bottom of a glass jar without getting your hand sticky. Inventor Ron Jidmar thinks he has a solution to all of that nonsense with a flexible jar design that can be squeezed with one hand to lift contents from the bottom to the top of a jar or container, leaving the other hand free to scoop the contents out cleanly.
Made by Monkeys highlights products that somehow slipped by the QC cops.
2014 was big dark year for cyber attacks. Here's the month-by-month blow-by-blow breakdown.
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
2/25/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jan 26 - 30, IPv6 for Micros – Hands-On
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Last Archived Class
Sponsored by Stratasys
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service