Why is lockout/tagout needed before removing a guard?

Because clearing jams or servicing a machine with the guard off exposes workers to unexpected startup and stored energy. Lockout/tagout (29 CFR 1910.147) isolates the energy so the machine cannot move during the task.

What are the OSHA penalties for unguarded machinery?

A serious machine-guarding violation can cost over $16,000, and willful or repeat violations can exceed $165,000 per instance. An amputation must also be reported to OSHA within 24 hours.

How can I tell if a guard is adequate?

An adequate guard prevents contact with the hazard, stays securely in place, does not create a new hazard, allows safe lubrication and maintenance, and does not interfere excessively with the work. If any moving part can be touched, the guard is inadequate.

How accurate is OSHA Scan at detecting unguarded parts?

OSHA Scan detects exposed moving parts. It locates unguarded shafts, gears, belts, and nip points and returns the specific location and OSHA citation.

OSHA Scan

One Loose Sleeve Is All Machinery Entanglement Needs

Catch the exposed part before it catches your worker

Rotating shafts, gears, belts, and chains can pull a hand, sleeve, or strand of hair into a machine in a fraction of a second — faster than any worker can react. Entanglement injuries are among the most severe on any floor, often ending in amputation. OSHA Scan analyzes job-site and shop photos to flag unguarded moving parts, missing barrier guards, and exposed nip points before someone gets pulled in.

Machinery entanglement happens wherever a moving machine part can grip clothing, jewelry, hair, or skin and pull the worker into the mechanism. The classic sources are rotating shafts, power take-offs, gears in mesh, belt-and-pulley drives, chain-and-sprocket drives, and the nip points where two rotating parts meet or where a belt runs onto a pulley.
On a real floor the hazard shows up as a guard that was removed for cleaning and never reinstalled, a set screw or keyway protruding from a rotating shaft, a drive belt with the cover left open, or an auger turning with no barrier around it. Loose gloves, untucked shirts, drawstrings, lanyards, and long hair dramatically raise the risk near any of these points.
The trap is speed and silence. A rotating shaft looks harmless because it seems to be turning slowly, but it can wrap a sleeve in well under a second and draw an arm in before the worker can even flinch. That is why a photo-based check that flags an exposed moving part before startup is so valuable.

What is machinery entanglement?

Entanglement occurs when a moving machine part — a rotating shaft, gear, belt, chain, or nip point — catches clothing, hair, jewelry, or skin and pulls the worker into the mechanism. It is a leading cause of workplace amputations.

Which machine parts most often cause entanglement?

Rotating shafts, power take-offs, gears in mesh, belt-and-pulley drives, chain-and-sprocket drives, augers, and nip points where two parts meet or a belt runs onto a pulley are the most common sources.

What does OSHA require for machine guarding?

29 CFR 1910.212 requires guarding of any machine part that presents a hazard, protecting operators and others from rotating parts, nip points, and flying chips. Guards must be secure and not create their own hazard.

Are gloves safe to wear around rotating machinery?

Often not. Loose gloves can be grabbed by rotating parts and pull the hand in. Around unguarded rotating shafts, drills, or lathes, OSHA and manufacturers frequently prohibit gloves entirely.