Tru-Weld SC2400 Arc Welder - Manual (Page 23)

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SC2400 Operations ‐ Welding
Stud Welding ‐ Helpful Hints and Suggestions
• Keep weld studs and ferrules clean and dry.
• Set the time for the appropriate weld base diameter (see chart on page 19).
• Set the amperage for the appropriate weld base diameter (see chart on page 19).
• Make sure the negative polarity is to the weld stud gun and ensure a good, clean ground con‐
nection.
• Align accessories so they are centered and adjust legs so that 3/16” to 1/4” of the stud pro‐
trudes beyond the ferrule.
• Make sure work surface is relatively clean so impurities do not affect weld.
• Test the welds at the beginning of each shift or change in stud. Bend two studs 30 degrees af‐
ter cooling (AWS Bend Test).
• Check burn off (1/8” – 3/16”), color (silver blue and shiny), and weld fillet (360 degree).
• Visually inspect all welds.
Thru‐Deck Stud Welding ‐ Helpful Hints and Suggestions
• Keep weld studs and ferrules clean and dry.
• Never attempt thru‐deck welding when the ambient temperature is below 32 o
F
• Deck must be layered flat on supporting members.
• Deck must be properly grounded. Be sure all cable connections are tight and secure.
• Always use a special thru‐deck type ferrule.
• Visually inspect all welds.
To ensure satisfactory welds, bend test a minimum of one stud out of every one‐hundred, by
striking stud with a hammer and bending the stud 15
o
from its original axis.