Guards are installed on machines in order to provide protection for the user from moving parts that may present a danger. It is best to cover as much of the moving part in a machine as possible. Many newer tools come with built-in guards and additional safety features including flesh-sensing saw-stop technologies and band-saw kickback features. Guards may also be purchased from manufacturers or other retailers for older tools and replacements. The links below are explanations of guard importance and examples of guards that may be installed on machines in order to increase user safety.

Machine Safeguarding at the Point of Operation - Guide (OR OSHA) (PDF)

Basics of Machine Safeguarding - OSHA

Manufacturer details on the Biesemeyer-T-Square Blade Guard System for Table Saw (PDF)


Machine Safeguarding Tools Retailers


Rockford Systems

Machine Guard (PDF)

Lockout/Tagout (LOTO)

Does your shop have equipment that is permanently connected to a power source (hard wired) or has a potential to release stored energy? If so you need to implement a LOTO program to prevent injury. More information about this program may be found on the Hazardous Energy Control - Lockout/Tagout webpage.

Securing Non-Portable Equipment / Machinery

Secure top-heavy or unsteady equipment to the floor to prevent movement or shifting during use. Using concrete anchors and bolts may be one way to secure equipment but still move it later if necessary.


A "crane" is a machine for lifting and lowering a load and moving it horizontally. The hoisting mechanism is an integral part of the machine. Cranes can be fixed or mobile and manual or power driven.

Overhead and gantry cranes, including semi gantry, cantilever gantry, wall cranes, jib cranes, storage bridge cranes, and others having the same fundamental characteristics, with a capacity of a half ton or greater, must be maintained and inspected. This service should be conducted by qualified personnel. Some crane inspection firms in the Seattle area include:

Washington Crane
Lance Crane

Operators must be competent and qualified but need not be certified as required for construction cranes. Operator training should be documented.


Occupational Safety and Health

(206) 543-7388