Guards and Devices You'll Learn
Fixed guards
Permanent barriers that need tools to remove — the simplest and often most reliable option.
Interlocked guards
Opening the guard shuts the machine down or prevents it from starting.
Adjustable guards
Set to fit different stock sizes; only work when adjusted correctly.
Self-adjusting guards
Open only as far as the material passing through, such as on many saws.
Presence-sensing devices
Light curtains and mats stop motion when a body part enters the danger zone.
Two-hand controls and pullbacks
Keep both hands — or a tethered hand — out of the point of operation during the cycle.
Objectives
Identify hazardous motions and actions: rotating, reciprocating, transverse, cutting, punching and bending
Recognize guard types and safeguarding devices and how each protects
Work with guards correctly: never bypass, never defeat, always report damage
Respond correctly when a guard is missing or a machine is unguarded
Guarding in the Crane World
The machine guarding standard, 29 CFR 1910.212, applies in general industry: fabrication shops, rigging lofts with swaging presses and wire rope cutters, and plants that run overhead cranes. Mechanical power transmission parts — belts, pulleys, gears and shafts — are covered in 1910.219.
On construction sites, the same idea shows up at a larger scale. A rotating crane superstructure creates pinch and crush points between the counterweight and nearby objects, and Subpart CC requires the swing radius to be controlled — typically by barricades — under 1926.1424. Our mobile crane exam prep covers that rule from the operator's seat.
Inside the shop, the course pays attention to equipment crews often overlook: bench grinders with tool rests set too far from the wheel, pedestal fans, drill presses and band saws.
A recurring theme is what to do when you find a problem. If a guard is missing, damaged or has been wired open, the machine shouldn't be run: tag it out of service according to your shop's procedure, tell a supervisor, and let a qualified person repair or replace the guard. Production pressure is the most common reason guards disappear, so the course gives workers plain language for pushing back.
Where Guarding Ends and Lockout Begins
Guards protect during normal production. When someone has to remove a guard or reach into the machine to service, clear a jam or adjust it, energy control usually takes over. The course explains that hand-off and points you to our lockout/tagout awareness course.
LOTO for authorized workers →Who Should Take It
- Machine operators
- Rigging loft and sling shop staff
- Fabricators and welders
- Maintenance technicians
- Shop supervisors
Employer responsibilities
Employers must guard machines, maintain guards and devices, and train workers on the specific equipment they run. This course provides the awareness foundation.