Schumacher 98026053 - Manuel (Page 18)

SYMPTOM POSSIBLE CAUSE REMEDY
to clamp connection
Wrong size contact tip Use proper tip
Low primary voltage Have primary voltage checked by
electrician
Too long or improper extension
cord See instruction under extension
cord use
Wrong type or size of wire Check manual for proper wire size
or type
Wall receptacle improperly wired Consult electrician
Wrong welding polarity Change to proper polarity
Faulty gun assembly Replace gun
No wire feed but arc works Faulty wire speed switch Replace wire speed switch
Faulty main circuit board Replace main circuit board
No tension on drive roller Adjust drive tension
Liner plugged Replace liner
Faulty drive motor (extremely rare) Replace drive motor
Wire birdnesting at drive roller Too much tension on drive roller Adjust drive tension (see manual)
Wrong size contact tip Use correct size contact tip
Gun liner worn or damaged Replace liner
Contact tip is clogged or damaged Replace contact tip
Liner stretched or too long Trim liner to proper length
Wire burns back to contact tip Gun liner worn or damaged Replace liner
Liner stretched or too long Trim liner to proper length
Wrong size contact tip Use correct size contact tip
Contact tip is clogged or damaged Replace contact tip
Drive tension not set properly See instruction on setting drive
tension
Gun nozzle arcs to work surface Slag buildup inside nozzle or nozzle
shorted Clean or replace nozzle as needed
Ground clamp or cable gets hot Bad connection from cable to clamp Tighten connection or replace cable
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