Lincoln Electric IM611 TIG PULSER - Manual (Page 17)

D-3 TROUBLESHOOTING D-3
TIG PULSER
Observe all Safety Guidelines detailed througout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
2-STEP TIG WELDING PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Hi-Freq kicking in and out while weld-
ing in DC.
No Hi-Freq or no gas, can not start.
Low welding current.
Does not pulse.
1. Background Current is set too low.
2. Defective power source.
1. Power source & Tig Pulser con-
nection is wrong.
2. Defective power source.
1. Power source is set at 4-step Tig.
2. Defective Pulser PC board.
1. MODE switch on Tig Pulser is set
at 4-step.
2. Defective Pulser PC board.
1. Set Background Current to desired
position.
2. Check power source.
1. See Installation & Connection section
for proper connection.
2. Check power source.
1. Set power source to 2-step TIG.
2. Replace Pulser PC board.
1. Set MODE switch on Tig Pulser to 2-
step.
2. Replace Pulser PC board.
4-STEP TIG WELDING PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
Does not pulse when trigger closed.
Does not pulse when trigger open.
No output.
Welding current goes off after start-
ing.
Nothing is wrong, only pulse during
welding when trigger is open.
1. MODE switch on Tig Pulser is not
set at 4-step.
2. Defective Pulser PC board.
1. Mode switch on power source is
set at 2-step TIG.
2. Defective power source.
1. Background Current and/or Peak
Current set too low.
2. Defective power source.
1. Set MODE switch to 4-step.
2. Replace Pulser PC board.
1. Set MODE switch on power source to
4-step.
2. Check power source.
1. Set Background Current and Peak
Current to desired position.
2. Check power source.