Lincoln Ranger 8 will not weld

[TK101]

Lincoln Ranger 8 run fine welded about an inch and quit. It will only spark a little on end of rod. The machine set up for about 6 months but had been used for aux power once in the 6 month period, Aux power output is fine just wont weld. The machine only has 294 hours on it. Followed troubleshooting guide including checked and cleaned brushes/rotor.

[smithdoor]

See if brushes and or commutator need cleaning.

Dave

Lincoln Ranger 8 run fine welded about an inch and quit. It will only spark a little on end of rod. The machine set up for about 6 months but had been used for aux power once in the 6 month period, Aux power output is fine just wont weld. The machine only has 294 hours on it. Followed troubleshooting guide including checked and cleaned brushes/rotor.

[rexcormack]

Were you welding on DC or AC?
If it welds on AC but not DC that could indicate one or more open diodes
If it doesn't weld on either AC or DC then check both leads at both ends.

[TK101]

I was welding on DC+. Unhooked shorter leads on machine and hooked up longer leads an it welded about an inch. Then just spark. Hooked shorter leads back up and same thing.

[TK101]

Checked and cleaned. Still will not weld

[guajilloweld03]

Did you check/test D2 , it's a bridge rectifier.

[Jonesctx7]

Im having the same issue with mine, curious to see what the fix is