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3-4.2 Switch on the power source.
3-4.3 Set Welding Current to desired value (refer to 3-4. Welding Parameter
selection chart).
Set Arc force to desired value. Increases SMAW short-circuit amperage at low
arc voltage. This allows the operator to use a very short arc length without
sticking the electrode.
Set control at 0 for normal welding amperage. Turn clockwise to increase
Short-circuit amperage. Too high arc force will cause spatter, for
∅
3.2mm
electrode, arc force should be 4-5.
3-4.4 Drag electrode across workpiece like striking a match; lift electrode slightly
after touching work. If arc goes out electrode was lifted to high. If electrode
sticks to workpiece, use a quick twist to free it.
3-4.5 When TIG welding. Turn on the gas valve on the torch; adjust gas volume to
3-5L/MIN. check if there is gas leaking.
3-4.6 Touch tungsten electrode to workpiece at weld start point.
Hold electrode to
Workpiece for 1-2 seconds
, and then scratch electrode to workpiece. Arc is
formed when electrode is lifted. Aim Tungsten electrode to the welding seam.
3-4.7 After arc is ignited, move the torch along seam evenly. Fine tune the welding
parameter to obtain exquisite welding seam.
3-4.8 After finish operation, turn off the gas valve (for TIG). At the end, turn off
welding power source and wall switch.
3-5
Welding Parameter selection chart
The setting listed below is just for initial commission of the machine. The parameter can
be refined during welding.
STICK:
Electrode diameter (mm)
Welding current (A)
Welding voltage(V)
1.0 20~60
20~23
1.6 44~84
22~24
2.0 60~100
22~24
2.5 80~120
23~25
3.2 100~150
24~26
4.0 140~180
25~27
Table 3.1
TIG:
CAUTION
GRINDING THE TUNGSTEN ELECTRODE PRODUCES DUST AND FLYING
SPARKS WHICH CAN CAUSE INJURY AND START FIRES.USE LOCAL EXHAUST
AT THE GRINDER OR WEAR AN APPROVED RESPIRATOR