Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
Construction Safety and Health Standard
Part 19 - TOOLS
Section R. 408.41935 - Portable pneumatic-powered tools

(1) Safety clips or retainers shall be installed on pneumatic impact tools to prevent dies and tools from being accidentally expelled from the barrel.

(2) Pressure shall be shut off by means of a valve and exhausted from lines before disconnecting the lines from tools or connections, except when using a quick makeup coupling.

(3) Safety fasteners shall be provided at connections between tools and hose lines and at all quick makeup-type connections to prevent accidental disengagement.

(4) The rated pressure capacity of hoses, pipes, filters, valves, and fittings shall be not less than the rated pressure capacity of the tool. The pneumatic tool and its accessories shall not be operated at a pressure that is more than the rated capacity.

(5) Defective hoses or connections shall be removed from service.

(6) A hose shall not be used for hoisting or lowering a pneumatic-powered tool.

(7) A pneumatic-powered tool that has a hose which has an inside diameter of more than 1/2 of an inch shall have a safety device at the source of supply or branch line to reduce the pressure in case of hose failure.

(8) An airless spray gun that atomizes paint and fluids at a pressure of more than 1,000 pounds per square inch shall be equipped with an automatic or visible manual safety device that prevents the pulling of the trigger to release the paint or fluid until the safety device is manually released.

(9) Abrasive blast cleaning nozzles shall be equipped with an operating valve that can only be held open manually. A support shall be provided on which the nozzle may be mounted when it is not in use.