Portable air compressors are a common power source on most construction sites. So common in fact, that contractors may not be vigilant against the hazards of compressed air. This safety checklist outlines the three most important areas of compressor safety as well as specific guidelines to protect both equipment and operators.

Compressors

• Follow manufacturer's recommendations for proper operation and routine maintenance. Despite safety features such as fan and belt guards, only trained technicians should adjust compressor components.
• Do not adjust safety, blow-off, or control valves without referring to the operating manual. For example, improper adjustments can cause "air explosions" from the safety valve - startling and perhaps even injuring experienced operators.
• Do not change filters or check fluids while the compressor is running. Spraying fluids such as oil can cause burns or serious injury.
• Check for the correct tire pressure. Improperly inflated tires can affect road handling, damage the tire and make transportation dangerous.
• Check for excessive tread wear on the compressor tires.
• Replace worn or unreadable safety stickers on enclosure.
• Ensure that pressure and temperature gauges are working.

Air Hose

• Use an air hose rated for the maximum compressor pressure and flow.
• Do not allow your hoses to be run-over by vehicles or stored improperly. Cracks or weak spots are not only wasteful, but dangerous to the operator.
• Make sure the hose and compressor discharge fittings match. Always use the safety pin to prevent the fittings from disconnecting. If a pressurized air hose breaks loose, "fish tailing" may injure workers and damage equipment.
• Depressurize the hose prior to disconnecting.

User Instruction

• Advise users on the proper safety gear for the intended application. Goggles, safety shoes, gloves, and hearing protection are a must when operating construction tools. Other applications may require additional gear.
• Provide a mini-instruction course and safety pamphlet on safe compressor operation on a regular basis.
• Check the safety chain. Attach it properly to a vehicle structure that can support the load if the coupling accidentally disengages. Cross the chain and leave enough slack to properly catch the tow bar. The chain should not drag on the ground, but should allow the vehicle to turn without pulling the chain tight.
• Always match the vehicle's ball-hitch to the compressor's attachment mechanism.
• Remind users that air is dangerous. Do not point compressed air lines at people for any reason. Do not "dust" or "clean yourself off." Serious injury or death may occur.
• When in doubt, consult your operation manual or contact the manufacturer with questions.