Quality
•
Reliability
•
Performance
Weldmatic 150
Model No CP121, Iss B 07/08
17
Quality
•
Reliability
•
Performance
4 All connections in the external welding
circuit are clean and tight. Problems may
show as hot spots
5 Work piece surface is not contaminated.
Water, oil, grease, galvanising, paint,
or oxide layers can severely disturb the
welding arc and result in a poor weld.
Porosity in weld caused by lack of
shielding gas
1 Check that the correct gas flow rate has
been set (refer page 10)
2 Check for leaks in the gas hose. Replace
if leaking
3 Check for leaks in gun/cable assembly,
eg. fractured gas hose, broken or missing
‘O’ rings. Replace as required
4 Check the gun nozzle is free from spatter
and is firmly attached to the welding gun
to ensure that no air is being drawn into
the shielded area.
