THE TAKEAWAY
One Padlock Is the Difference Between a Close Call and a Trip Home
Trapped electricity, jammed machine parts, and stored hydraulic pressure don't give warnings before they move, shock, or crush. That's why lockout/tagout (LO/TO) isn't a suggestion on a Gerber site — it's a habit every crew member is trained to run through before clearing a jam or servicing equipment. Here's the 3-step rule, why it matters, and how we build it into every crew.
SAFETY STANDARD
What Is Lockout/Tagout?
Lockout/tagout is the process of physically isolating equipment from its power source — electrical, hydraulic, pneumatic, or mechanical — before anyone services, clears, or repairs it. It's codified under OSHA's Control of Hazardous Energy standard, 29 CFR 1910.147.
The reason it exists is simple: verbal warnings and "I think it's off" assumptions aren't reliable safeguards around equipment that can shock, crush, or amputate in a fraction of a second. A padlock is a control you can see and verify. A promise isn't.
HOW IT WORKS
The 3-Step Rule
1. Lock It
Put your own padlock on the power source. Not a coworker's lock, not a shared key — your lock, your control.
2. Tag It
Attach a tag with your name on it. Anyone walking by knows exactly who has this equipment locked out and who to talk to before touching anything.
3. Test It
Before reaching in, hit the start button or activation switch to confirm the equipment is actually dead. A locked switch means nothing if the wrong circuit got locked.
Every Task, No Exceptions
Five-minute jam or full maintenance job — if it moves, shocks, or crushes, lock it yourself. No exceptions, no shortcuts.
THE CHALLENGE
Why Verbal Warnings Aren't Enough
Picture a crew member reaching into a jammed machine to clear it, trusting that someone flipped the right switch. That trust is the risk. Stored energy doesn't announce itself before it moves.
This isn't about doubting a coworker's word — it's a physics problem. Energy sources can be re-energized, mislabeled, or only partially isolated, and there's no way to tell just by looking.
A padlock removes the guesswork entirely. It's a control you place, verify, and remove yourself — nothing left to assume.
WHY IT MATTERS
The Stakes Are Real
120 Fatalities Prevented Yearly
OSHA estimates compliance with the lockout/tagout standard prevents an estimated 120 fatalities and 50,000 injuries every year nationwide.
24 Lost Workdays, on Average
Workers hurt by uncontrolled hazardous energy lose an average of 24 workdays recovering — time away from the job and from home.
Zero Guesswork
A locked, tagged, and tested power source is verified — not assumed. That verification is what gets everyone home.
ON THE JOB
When Lockout/Tagout Applies
LO/TO isn't reserved for major maintenance. It applies any time a task puts you within reach of stored or hazardous energy.
Lock out before you:
- ▸ Clear a jam: Any time you're reaching into moving or previously-moving parts
- ▸ Service or repair equipment: Even for a quick fix, not just full maintenance
- ▸ Remove a guard or safety device: Before it's off, the power source needs to be too
- ▸ Work near suspended or stored energy: Hydraulic pressure, springs, or raised loads that could release without warning
- ▸ Any time equipment could unexpectedly start, move, or release energy: If there's doubt, lock it out
KNOW WHAT YOU'RE ISOLATING
Types of Hazardous Energy on a Jobsite
Electrical
Power to motors, panels, and hand tools. The most familiar hazard — and one of the easiest to underestimate once "off" is assumed instead of verified.
Hydraulic & Pneumatic
Pressurized fluid or air in lines, cylinders, and hoses. Pressure can remain in a system even after a machine is shut down.
Mechanical
Coiled springs, tensioned belts, or flywheels carrying momentum. Energy that's stored, not just powered, and can release without warning.
Gravity
Raised equipment, suspended loads, or anything that can drop. Blocking and securing is part of isolating this type of energy.
BUILT INTO EVERY CREW
The Gerber Approach to Lockout/Tagout
Toolbox Tips with Kitt is how we keep safety practical, not theoretical. Each week, PM Kitt walks the crew through one real habit from site training — the kind of reminder that takes thirty seconds to hear and can prevent a lifetime of consequences.
Every Gerber crew member carries and uses their own lock. Supervisors enforce lockout/tagout without exception, on every piece of equipment, every time — whether it's a five-minute jam or a full maintenance job.
It's a simple standard: if it moves, shocks, or crushes, lock it yourself.
Kitt JarzabkowskiProject Manager, Gerber Construction
SAFETY-FIRST CREWS
Want to Work Somewhere Safety Isn't Just a Poster?
Every Gerber crew trains on habits like this one — practical, weekly, and enforced without exception. That's what it takes to make sure everyone goes home safe, every day.
