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Welding Safety in Agriculture OSHA Standard 1910.253

Welding Safety in Agriculture OSHA Standard 1910.253. Produced by Idaho State University Office of Workforce Training.

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Welding Safety in Agriculture OSHA Standard 1910.253

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  1. Welding Safety in AgricultureOSHA Standard 1910.253 Produced by Idaho State University Office of Workforce Training

  2. “This material was produced under grant SH22228SH1 from the Occupational Safety and Health Administration, U.S. Department of Labor. It does not necessarily reflect the views or policies of the U.S. Department of Labor, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.”

  3. OSHA and Agriculture • Not all farms fall under OSHA jurisdiction • Who is exempt: Farms that only employ immediate family members or farms with 10 or less employees (this exemption, however, does not apply if the operation has maintained a temporary labor camp within the last twelve months, OSHA directive CPL 02-00-51) • Additional state guidelines may apply

  4. Welding Safety OverviewCFR 1926.351 • PPE: noise, fume, and light protection • Machine safety: cables, connections • Setting the machine: polarity, amps/volts • Base metal identification • Filler metal selection • Electrical safety • Safe welding practices

  5. Personal Protective Equipment (PPE) required for Ag welding • Cotton shirt/pants • Tapping jacket, leathers, burn protection • Gloves CFR 1910.138 (b) • Footwear CFR 1910.138 (b) • Welding hat • Safety glasses CFR 1910.133 • Other things not to wear

  6. PPE continued • Hearing protection CFR 1910.95 • Fume protection CFR 1910.94 • Have an A, B, C rated fire extinguisher on hand • Have a fire watch available

  7. Pre-operational ag welding checks • Welding cables “leads” • Connections • Ground clamp • Electrode holder “stinger” • Inert gas requirements, flow meter, hoses • GMAW, GTAW, and SMAW applications

  8. Setting up the machine • Polarity: AC, DCRP, or DCEN • Process: SMAW, GTAW, or GMAW • Read the owner’s manual • Amperage adjustments: too hot/cold • Adjusting inert gas flow/coverage • Wire speed, pulse, HF options • Portable welding considerations

  9. Typical AC/DC machine found in ag repair shops

  10. Stinger and ground clamp

  11. End connectors

  12. Process specific equipment

  13. Inert gases

  14. Inverter welder

  15. Producing a safe, strong weld in agriculture applications • Select the process best suited to the task • Properly identify the base metal • Determine which filler metal to use • Application of welding techniques

  16. Ag Welding process selection • SMAW: most common, versatile • GMAW: high deposition, low penetration • GTAW: dairy applications, stainless, aluminum • OFW: brazing, cutting, some welding apps • Considerations: HAZ, ferrous or non-ferrous, service or use of item

  17. Base metal identification for ag welding • Carbon steel: low, medium, and high • Cast iron: implement parts • Stainless steel: dairy applications, parts • Aluminum: sprinkler pipe, parts

  18. Base metal identification • File test for hardness: scale 1 to 10 • Magnet for iron content: low carbon steel • Color of metal: aluminum or stainless • Weight • Application(s) • Owner’s manual, manufacturer, ask questions

  19. Filler metal selection for ag welding • Low carbon steels or mild steels: E6010, E7018, ER70S-6 series for GTAW or GMAW applications • Medium carbon steels: E8018 or higher tensile strength, pre-heat/post heat • Follow a welding procedure or recommended practice from the manufacturer

  20. Electrical safety in ag welding • Cable insulation integrity • Hardwire or pigtails • Solid connections: soldered • Serviceable stinger and ground • Covers on quick connects • Compressed gas cylinder safety • Water issues • Grounding

  21. Ag shop welding considerations prior to welding • Shielding: UV/IR light, grinder sparks • Protect floor • Cover vital parts of equipment • Ventilation • Noise abatement • Fire extinguisher, fire watch • Clean work area, combustibles, trip hazards

  22. Mobile repair/field service in agriculture • Proper fuel for welding machine • Secure cylinders, upright position • Protect gauges • Inspect leads prior to operation • Ground properly: bearings, fuel cells, electronics—consult owner’s manual • Fume from welding, motors • Combustibles: fuels, crops, clothing

  23. Mobile repair, cont. • Chock wheels • Park on level of terrain if possible • Fire watch • Fire extinguisher • Communications • Contingency plan: where, when, what, . . .

  24. Other welding safety in agriculture • Welding/cutting on tanks, vessels, or cylinders • Confined space • Grain dust and/or other combustibles • Grounding: damage to electronics, bearing, and fuel

  25. Evaluation Produced by Idaho State University Office of Workforce Training

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