In Tig, Arc Unstable, Welding Irregular - Cebora BI-WELDER 1365 Service Manual

CEBORA S.p.A.

3.3.6 - In TIG, arc unstable, welding irregular.

In TIG, the welding quality may not be acceptable due to current instability. In this case we
recommend switching to MMA operation, and performing welding tests.
WELDING QUALITY TEST IN MMA.
Power source in MMA, welding tests = good welding quality.
♦ Perform the "open circuit operation" test (par. 3.3.4) and "operation on resistive
load" (par. 3.3.5).
♦ Replace the power board (13).
♦ Check the condition of the torch and electrode. If necessary, sharpen the tip of the electrode.
♦ Check the presence and continuity of the gas flow at the torch output.
♦ Check the condition of the gas valve on the torch.
♦ Replace the power board (13).
3.302.110
NOTE
Correct?
YES
NO
10
18/11/02