Tweco 100 Weldskill - Manual (Page 38)

weldskill 100 iNVeRTeR
5-6 March 3, 2008
5.06 Welding Power Source Problems
Description Possible Cause Remedy
1 The welding arc cannot be
established
A The Primary supply voltage
has not been switched ON
A Switch ON the Primary
supply voltage
B The Welding Power Source
switch is switched OFF
B Switch ON the Welding
Power Source
C Loose connections internally Have an Accredited
Cigweld Service Provider
repair the connection
2 Maximum output welding current
cannot be achieved with nominal
Mains supply voltage
Defective control circuit Have an Accredited
Cigweld Service Provider
inspect then repair the
welder
3 Welding current reduces when
welding
Poor work lead connection to
the work piece
Ensure that the work lead
has a positive electrical
connection to the work
piece
4 TIG electrode melts when arc is
struck
TIG torch is connected to the
(+) VE terminal
Connect the TIG torch to
the (-) VE terminal
5 Arc flutters during TIG welding Tungsten electrode is too
large for the welding current
Select the correct size of
tungsten elecrode