Lincoln Electric IM611 TIG PULSER - Manual (Page 16)

D-2 TROUBLESHOOTING D-2
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
GENERAL PROBLEMS
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENTS(S)
RECOMMENDED
COURSE OF ACTION
No output.
Max. welding current and Tig Pulser
has no control.
Remote hand or foot Amptrol has no
control on welding current.
Always has min. welding current
when using Arc Start Switch.
Remote Amptrol has no control on
the welding current in 4-step.
Welds but does not pulse.
1. The AMPERAGE knob on power
source is not set at MAX.
2. Power source & Tig Pulser con-
nection is wrong.
3. Defective Pulser PC board.
1. MODE switch on power source is
set at STICK position.
2. Defective Pulser PC board.
1. MODE switch on Tig Pulser is not
set at Amptrol 2-step.
2. Defective Pulser PC board.
1. MODE switch on Tig Pulser is set
at Amptrol.
2. Wiring at Peak Current poten-
tiometer is broken.
3. Defective Pulser PC board.
Nothing is wrong, in 4-step mode the
welding current is controlled only by
the Peak Current knob on Pulser.
1. Background current is set at
PULSER OFF position.
2. Wring at Pulses per Second
potentiometer is broken.
3. Defective Pulser PC board.
1. Set AMPERAGE knob at MAX.
2. See Installation & Connection section
for proper connection.
3. Replace Pulser PC board.
1. Set MODE switch on power source to
2-step or 4-step TIG.
2. Replace Pulser PC board.
1. Set MODE switch on Tig Pulser to
Amptrol 2-step.
2. Replace Pulser PC board.
1. Set MODE switch on Tig Pulser to Arc
Start Switch 2-step if welding in 2-step,
or to 4-step if welding in 4-step.
2. Check wiring at Peak Current poten-
tiometer.
3. Replace Pulser PC board.
1. Set Background current to desired
position.
2. Check wiring at Pulses per Second
potentiometer.
3. Replace Pulser PC board.