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A=COM <br /> • Air embolism (compressed air injected into the body); <br /> • Dropped tool; and <br /> • Tripping over hose. <br /> 4.6 Compressed Air Equipment Maintenance <br /> 4.6.1 Only authorized and trained employees should service and maintain air compressor equipment. <br /> 4.6.2 Exposed, non-current-carrying, metal parts of compressor should be effectively grounded. <br /> 4.6.3 Low Flash Point lubricants should not be used on compressors because of its high operating <br /> temperatures that could cause a fire or explosion. <br /> 4.6.4 Equipment should not be over lubricated. <br /> 4.6.5 Gasoline or diesel fuel powered compressors shall not be used indoors. <br /> 4.6.6 Equipment placed outside but near buildings should have the exhausts directed away from doors, <br /> windows and fresh air intakes. <br /> 4.6.7 Soapy water of lye solutions can be used to clean compressor parts of carbon deposits, but <br /> kerosene or other flammable substances should not be used. Frequent cleaning is necessary to <br /> keep compressors in good working condition. <br /> 4.6.8 The air systems should be completely purged after each cleaning. <br /> 4.6.9 During maintenance work,the switches of electrically operated compressors should be locked open <br /> and tagged to prevent accidental starting. <br /> 4.6.10 Portable electric compressors should be disconnected from the power supply before performing <br /> maintenance. <br /> 4.7 Compressed Gas Cylinder Requirements <br /> 4.7.1 Cylinders are not to be used unless they bear Department of Transportation (DOT)or <br /> Transportation of Dangerous Goods(TDG)markings showing that they have been tested as <br /> required by DOT or TDG regulations. <br /> 4.7.2 Cylinders shall never be dropped, struck, or permitted to strike each other violently. Cylinders may <br /> be moved by tilting and rolling them on their bottom edges. <br /> 4.7.3 Valve protection caps shall always be kept on cylinders when they are being moved or stored, and <br /> until ready for use. Caution should be exercised as insects such as spiders,wasps, and bees may <br /> be encountered in cylinder caps. <br /> 4.7.4 Do not lift cylinders by the valve protection cap. <br /> 4.7.5 Cylinder valves are to be kept closed except when gas is being used or when connected to a <br /> permanent manifold.Valves of empty cylinders shall be closed. <br /> 4.7.6 Cylinders shall never be used as rollers or supports, or for any purpose other than carrying gas. <br /> 4.7.7 Valves and regulators shall be inspected for foreign materials such as oil or dirt and deficiencies <br /> such as damaged threads or broken gauges. Deficient valves or regulators shall be removed from <br /> service and replaced. <br /> 4.7.8 Threads on regulator connections or other auxiliary equipment shall be the same as those on the <br /> cylinder valve outlet. <br /> 4.7.9 Regulators shall be specific to the gas being used and no adapters may be used to connect <br /> regulators to cylinders. <br /> 4.7.10 When withdrawing cylinder content, open the cylinder valve slowly using the appropriate tool (e.g., <br /> manufacturer supplied, non-sparking, etc.). Point the valve opening away from yourself and other <br /> persons. <br /> Compressed Gases(S3AM-114-PR1) <br /> Revision 3 September 30,2020 <br /> PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. 5 of 12 <br />