Airco Heliwelder High current problem and solution

[ceceljoeh]

Heliwelder IV High current problem and solution


Machine:
Heliwelder IV 1341-0176 code 665


Problem:
Weld current at range maximum regardless of range selection or weld current adjustment


Research:
I obtained a copy...

[ceceljoeh]

Does anyone have a readable copy of the user manual for this unit (Airco Heliwelder IV 1341-0176 code 0665) that they could scan for me? I am new to this forum and have seen several threads related to this welder. Even just a Schematic would be most helpful. I am rebuilding one of these welders and...