Product Manual

Page 15 of 25
flows between the electrode (rod) and the grounded metal work piece. The intense heat of the
arc between the rod and the grounded metal melts the electrode and the flux.
4. SELECTING THE PROPER ELECTRODE
There is no golden rule that determine the exact rod or heat setting required for every
situation. The type and thickness of metal and the position of the work piece determine the
electrode type and the amount of heat needed in the welding process. Heavier and thicker
metals required more amperage. It is best to practice your welds on scrap metal which
matches the metal you intend to work with to determine correct heat setting and electrode
choice. See the following troubleshooting tips to determine if you are using the correct
electrode.
a. When the proper rod is used:
i. The bead will lay smoothly over the work without ragged edges.
ii. The base metal puddle will be as deep as the bead that rises above it.
iii. The welding operation will make a crackling sound similar to the sound of
eggs frying.
b. When a rod that is too small is used:
i. The bead will be high and irregular.
ii. The arc will be difficult to maintain.
c. When the rod is too large:
i. The arc will burn through light metals.
ii. The bead will undercut the work.
iii. The bead will be flat and porous.
iv. The rod may freeze or stick to the work piece.
Note: The rate of travel over the work also affects the weld. To ensure proper penetration and enough
deposit of the rod, the arc must be moved slowly and evenly along the weld seam.
5. SETTING THE AMPERAGE CONTROL
The welder has an infinite current control. It is capable of welding with electrodes up to 3/32”
diameter. It is best to practice your welds on scrap metal which matches the metal you intend
to work with to determine the correct setting for the job. The electrode type and the thickness
of the work piece metal determine the amount of heat needed in the welding process. Heavier
and thicker metals require more voltage (amperage), whereas lighter and thinner metals
require less voltage (amperage). Consult the welding electrode packaging for recommended
welding amperage range.
6. WELDING TECHNIQUES
The best way to teach yourself how to weld is with short periods of practice at regular
intervals. All practice welds should be done on scrap metal that can be discarded. Do not
attempt to make any repairs on valuable equipment until your practice welds are of good
appearance and free of slag or gas inclusions.