A. Weld speed is too fast.
B. Weld speed is too slow.
C. Arc is too long.
D. Ideal weld.
A solid weld bead requires that the electrode be moved slowly and steadily along the weld seam.
Moving the electrode rapidly or erratically will prevent proper fusion or create a lumpy, uneven bead.
ELECTRIC SHOCK CAN KILL! To prevent ELECTRIC SHOCK, do not perform any welding
while standing, kneeling, or lying directly on the grounded workpiece.
9.6 Finish the bead
As the coating on the outside of the electrode burns off, it forms an envelope of protective gases
around the weld. This prevents air from reaching the molten metal and creating an undesirable
chemical reaction. The burning coating, however, forms slag. The slag formation appears as an
accumulation of dirty metal scale on the finished weld. Slag should be removed by using a chipping
PEENING THE SLAG FROM A WELD JOINT CUASES SMALL CHIPS OF METAL TO FLY
THROUGH THE AIR! Metallic chips flying through the air can cause eye injury or injury to
other parts of the head, hands or exposed portions of the body. Wear goggles or safety
glasses with side shields and protect the hands and other exposed parts of the body with
protective garments, or if possible, work with a shield between the body and the work piece.
The intense heat produced at the arc sets up strains in the metal joined by welding. Peening the
weld not only removes the scale left behind in the welding but relieves the internal strains developed
by the heating and cooling process.
Maintain your KLUTCH ST200i. It is recommended that the general condition of KLUTCH
ST200i be examined before it is used. Keep KLUTCH ST200i in good repair by adopting a
program of conscientious repair and maintenance. Have necessary repairs made by qualified
Periodically clean dust, dirt, grease, etc. from your welder.
Every six months, or as necessary, remove the cover panel from the welder and air-blow any
dust and dirt that may have accumulated inside the welder.
Replace power cord, ground cable, ground clamp, or electrode assembly when damaged or