Orion Pulse Arc Welding Workbook
4
• Repetitive welds in the same location can cause metal to become hot.
• Do not touch hot weld areas bare-handed.
• Allow sufficient cooling time before handling welded pieces.
SAFETY PRECAUTIONS FOR FUMES AND GASES
Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. e Orion
produces minimal fumes and gases when compared to large-scale arc welders. ough not required, some form of
ventilation is recommended.
• Keep your head out of the fumes. Do not breathe the fumes.
• Ventilate the area and/or use local forced ventilation at the arc to remove welding fumes and gases.
• If ventilation is poor, wear an approved air-supplied respirator.
• Read and understand the Material Safety Data Sheets (MSDS) and the manufacturer’s instructions for metals,
consumables, coatings, cleaners, and degreasers.
• Welding in confined spaces requires good ventilation or an air-supplied respirator. Always have a trained watch
person nearby. Welding fumes and gases can displace air and lower the oxygen level causing injury or death. Be
sure the breathing air is safe.
• Do not weld in locations near degreasing, cleaning, or spraying operations. e heat and rays of the arc can react
with vapors to form highly toxic and irritating gases.
• Do not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is removed
from the weld area, the area is well ventilated, and while wearing an air-supplied respirator. e coatings and
any metals containing these elements can give off toxic fumes if welded.
SAFETY PRECAUTIONS FOR FALLING EQUIPMENT
• Use a working surface of adequate physical strength to support the welding unit during operation or storage.
• Secure welding unit during transport so that it cannot tip or fall.
SAFETY PRECAUTIONS FOR HIGH FREQUENCY PITCH AND VOLUME
• Welding with high frequency pulse agitation can produce loud, high pitched sounds. It is recommended to use
hearing protection when welding with agitation turned on.
MAGNETIC FIELDS CAN AFFECT IMPLANTED MEDICAL DEVICES
• Wearers of pacemakers and other implanted medical devices should keep away.
• Implanted medical device wearers should consult their doctor and the device manufacturer before going near
arc welding, spot welding, gouging, plasma arc cutting, or induction heating operations.
OVERUSE CAN CAUSE OVERHEATING
• Allow a cooling period between strenuous welding schedules; follow rated duty cycle.
• If overheating occurs often, reduce duty cycle before starting to weld again.
OBSERVE ALL NECESSARY PRECAUTIONS ASSOCIATED WITH COMPRESSED GASES
• Use only compressed gas cylinders containing the correct shielding gas for the process used.
• Always keep cylinders in an upright position and secured to a fixed support.
• Cylinders should be located:
- Away from areas where they may be struck or subjected to physical damage.
- A safe distance from arc welding or cutting operations and any other source of heat, sparks, or flame.
PRINCIPAL SAFETY STANDARDS
Safety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,from Global Engineering Documents (phone: 1-877-
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