Rectifying Faults; Checklist For Rectifying Faults - EWM TIG 17 GD Operating Instructions Manual

7

Rectifying faults

All products are subject to rigorous production checks and final checks. If, despite this, something fails to
work at any time, please check the product using the following flowchart. If none of the fault rectification
procedures described leads to the correct functioning of the product, please inform your authorised dea-
ler.
7.1

Checklist for rectifying faults

The correct machine equipment for the material and process gas in use is a fundamental
requirement for perfect operation!
Legend
Welding torch overheated
 Loose welding current connections
Tighten power connections on the torch and/or on the workpiece

Tighten contact tip correctly

 Overload
Check and correct welding current setting

Use a more powerful welding torch

Functional error with the welding torch operating elements
 Connection problems
Make control lead connections and check that they are fitted correctly.

Unstable arc
 Material inclusions in the tungsten electrode due to contact with filler material or workpiece
Regrind or replace the tungsten electrode

 Incompatible parameter settings
Check settings and correct if necessary

 Metal vapour on the gas nozzle
Clean and change gas nozzle

Pore formation
 Inadequate or missing gas shielding
Check shielding gas setting and replace shielding gas cylinder if necessary

Shield welding site with protective screens (draughts affect the welding result)

 Unsuitable or worn welding torch equipment
Check size of gas nozzle and replace if necessary

 Condensation in the gas tube
Purge hose package with gas or replace

099-011623-EW501
21.03.2023
Symbol Description
Fault/Cause

Remedy

Rectifying faults
Checklist for rectifying faults
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