welding safety in agriculture osha standard 1910.253
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Welding Safety in Agriculture OSHA Standard 1910.253. Produced by Idaho State University Office of Workforce Training. - PowerPoint PPT PresentationTRANSCRIPT
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Welding Safety in AgricultureWelding Safety in Agriculture
OSHA Standard 1910.253OSHA Standard 1910.253
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Produced by Idaho State University Office of Workforce Training
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“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.”
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OSHA and AgricultureOSHA 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
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Welding Safety OverviewWelding Safety OverviewCFR 1926.351CFR 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
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Personal Protective Personal Protective Equipment (PPE) required Equipment (PPE) required
for Ag weldingfor 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
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PPE continuedPPE 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
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Pre-operational ag welding Pre-operational ag welding checkschecks
Welding cables “leads” Connections Ground clamp Electrode holder “stinger” Inert gas requirements, flow meter,
hoses GMAW, GTAW, and SMAW applications
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Setting up the machineSetting 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
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Typical AC/DC machine Typical AC/DC machine found in ag repair shopsfound in ag repair shops
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Stinger and ground clampStinger and ground clamp
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End connectorsEnd connectors
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Process specific equipmentProcess specific equipment
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Inert gasesInert gases
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Inverter welderInverter welder
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Producing a safe, strong Producing a safe, strong weld in agriculture weld in agriculture
applicationsapplications Select the process best suited to the
task Properly identify the base metal Determine which filler metal to use Application of welding techniques
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Ag Welding process Ag Welding process selectionselection
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
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Base metal identification for Base metal identification for ag weldingag welding
Carbon steel: low, medium, and high Cast iron: implement parts Stainless steel: dairy applications,
parts Aluminum: sprinkler pipe, parts
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Base metal identificationBase 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
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Filler metal selection for ag Filler metal selection for ag weldingwelding
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
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Electrical safety in ag Electrical safety in ag weldingwelding
Cable insulation integrity Hardwire or pigtails Solid connections: soldered Serviceable stinger and ground Covers on quick connects Compressed gas cylinder safety Water issues Grounding
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Ag shop welding Ag shop welding considerations prior to considerations prior to
weldingwelding 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
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Mobile repair/field service in Mobile repair/field service in agriculture 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
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Mobile repair, cont.Mobile repair, cont.
Chock wheels Park on level of terrain if possible Fire watch Fire extinguisher Communications Contingency plan: where, when,
what, . . .
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Other welding safety in Other welding safety in agricultureagriculture
Welding/cutting on tanks, vessels, or cylinders
Confined space Grain dust and/or other combustibles Grounding: damage to electronics,
bearing, and fuel
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EvaluationEvaluation
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Produced by Idaho State University Office of Workforce Training