1910.254(a)(3)
Instruction. Workmen designated to operate arc welding equipment shall have been properly instructed and qualified to operate such equipment as specified in paragraph (d) of this section
1910.254(d)(1)
General.
Workers assigned to operate or maintain arc welding equipment shall be acquainted with the requirements of this section and with 1910.252 (a), (b), and (c) of this part
1910.254(d)(2)
Machine hook up. Before starting operations all connections to the machine shall be checked to make certain they are properly made. The work lead shall be firmly attached to the work; magnetic work clamps shall be freed from adherent metal particles of spatter on contact surfaces. Coiled welding cable shall be spread out before use to avoid serious overheating and damage to insulation.
1910.254(d)(3)
Grounding. Grounding of the welding machine frame shall be checked. Special attention shall be given to safety ground connections of portable machines.
1910.254(d)(4)
Leaks. There shall be no leaks of cooling water, shielding gas or engine fuel.
1910.254(d)(5)
Switches. It shall be determined that proper switching equipment for shutting down the machine is provided
1910.254(d)(6)
Manufacturers' instructions. Printed rules and instructions covering operation of equipment supplied by the manufacturers shall be strictly followed
1910.254(d)(7)
Electrode holders. Electrode holders when not in use shall be so placed that they cannot make electrical contact with persons, conducting objects, fuel or compressed gas tanks
1910.254(d)(8)
Electric shock. Cables with splices within 10 feet (3 m) of the holder shall not be used. The welder should not coil or loop welding electrode cable around parts of his body.
1910.254(d)(9) Maintenance.
1910.254(d)(9)(i)
The operator should report any equipment defect or safety hazard to his supervisor and the use of the equipment shall be discontinued until its safety has been assured. Repairs shall be made only by qualified personnel
1910.254(d)(9)(ii)
Machines which have become wet shall be thoroughly dried and tested before being used.
1910.254(d)(9)(iii)
Cables with damaged insulation or exposed bare conductors shall be replaced. Joining lengths of work and electrode cables shall be done by the use of connecting means specifically intended for the purpose. The connecting means shall have insulation adequate for the service conditions.
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