Operating Instructions and Parts Manual
Troubleshooting Chart - Generator (Continued)
Symptom
possible Cause(s)
Auto-Idle does
1 . Damaged or disconnect wire in idle
not work
control circuit .
2 . Failed idle control circuit board .
3 . Failed current sensing coil .
H These diagnostic and repair procedures should be performed by an authorized service center .
Troubleshooting Chart - Welder
Symptom
possible Cause(s)
Welder runs but
1 . Inadequate current at electrode
does not weld
2 . Poor connections at welder
3 . Front panel switch set incorrectly
4 . Open, shorted, or incorrect wiring
5 . Faulty capacitor
6 . Open or shorted field windings
7 . Open diodes
Welder gives trickle
1 . Accidental contact with work piece
shocks
2 . Current leakage caused by moist
clothing or work area
Arc difficult to strike 1 . Wrong type of electrode .
2 . Electrode diameter too large
3 . Work piece not properly grounded
4 . Engine speed is too slow
H These diagnostic and repair procedures should be performed by an authorized service center .
Troubleshooting Chart - Welds
Symptom
possible Cause(s)
Bead is
1 . Inconsistent travel speed
intermittently too
2 . Output amp setting incorrect
thin or too thick
Ragged depressions
1 . Travel speed too fast
at edge of weld
2 . Arc length too short
3 . Output amp setting too high
Weld bead does
1 . Inconsistent travel speed
not penetrate base
2 . Output amp setting too low
metal
3 . Electrode diameter too large
Electrode sticks to
1 . Arc length short
workpiece
2 . Amp setting low
3 . Incorrect electrode
Electrodes sputter
Damp electrodes
and stick
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Corrective Action
1 . Repair or replace wiring .
2 . Replace idle control board .
3 . Replace current sensing coil .
Corrective Action
1 . Check work clamp, cable and connection to work piece . Check
electrode cable and clamp
2 . Check all welder external connections
3 . Set front panel switch to weld
4 . Referring to the wiring diagram, clean and reconnect all wiring H
5 . Replace capacitor H
6 . Test winding resistance, replace field winding if necessary H
7 . Test diodes, replace if necessary H
1 . Avoid contact with work piece
2 . Make sure clothing and work area are dry
1 . Verify that electrode is for alternating current (AC)
2 . Use smaller diameter electrode
3 . Verify proper grounding . (No paint, varnish or corrosion)
4 . Adjust engine speed
Corrective Action
1 . Carefully watch and control the width of the molten weld bead
2 . Adjust output amp setting or change to smaller diameter electrode
1 . Watch orange molten weld puddle and control bead width
2 . Practice running electrode across workpiece with welder OFF
3 . Reduce output amp setting
1 . Decrease and maintain constant travel speed
2 . Increase output amp setting
3 . Change to smaller diameter electrode
1 . Lift electrode to correct arc length as soon as arc is struck
2 . Increase amp setting or change to smaller diameter electrode
3 . Verify electrode is suitable for 62 .5 V open circuit voltage
Use dry electrodes and store in dry location
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