In Tig, Arc Unstable, Welding Irregular - Cebora POWER ROD 1565 Cell Service Manual

CEBORA S.p.A.
♦ Check the connection between terminals "-V" and "+V" on the power board (11),
with the output terminals – and + of the power source. If you find loose
connections, tighten and replace any damaged terminals.
♦ Replace the power board (11).
EXTERNAL CURRENT REFERENCE ENABLE TEST.
Panel board (16), connector J1, terminals 4 (+) and 8 (-) = +13.8 Vdc, external reference
disabled, without accessories connected to the connector (H), or with art. 1567.20 connected
(TIG torch with start button only); 0 Vdc, external reference enabled, (with arts. 181, or 187,
or 1567.02 connected to the connector (H).
♦ Check the wiring between CN1 power board (11) and CN1 panel board (16).
♦ Check the wiring of the accessory connected to the connector (H), especially the
presence, where necessary, of the jumper between terminals 4 and 8 of the
connector of the accessory being used.
♦ Make sure that the accessory being used is compatible with the power source art.
255 (see tables 2.3.1 and 2.3.2, and electrical diagram in par. 5.1 for connections,
or Sales Catalogue, and the power source Instruction Manual).
♦ Replace the panel board (16).
♦ Check cable and potentiometer of the accessory being used. If defective, replace.
♦ Make sure that the accessory being used is compatible with the power source art. 255 (see
tables 2.3.1 and 2.3.2, and electrical diagram in par. 5.1 for connections, or Sales Catalogue,
and the power source Instruction Manual).
♦ Replace the panel board (16).

3.3.7 - In TIG, arc unstable, welding irregular.

In TIG, the welding quality may not be acceptable due to current instability. In this case we
WELDING QUALITY TEST IN MMA.
Power source in MMA, welding tests = good welding quality.
♦ Perform the tests "open circuit operation" (par. 3.3.5) and "operation on resistive
load" (par. 3.3.6).
♦ Replace the power board (11).
♦ Check the condition of the torch and electrode. If necessary, sharpen the tip of the electrode.
♦ Check for the presence and continuous flow of gas in output from the torch.
♦ Check the operation of the gas valve in the torch.
♦ Replace the power board (11).
3.302.113
Correct?
YES
NOTE
recommend carrying out MMA welding tests.
Correct?
YES
NO
NO
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20/11/02