R-Tech ProArc 135 Operation Instructions Manual page 13

1. Stick electrode 'blasts off' when arc is struck
Welding current set too high, reduce welding current
Materials are dirty – clean before welding
2. Excessive Splatter
Long arc – get electrode closer to work
Welding current too high, reduce welding current
3. Insufficient penetration
Too fast welding speed, slow down travel speed
Welding current set too low, increase welding power
4. Porosity in weld
Humidity in electrodes
Long arc – get electrode closer to work
13
Arc welding problems