20
TROUBLESHOOTING, CONTINUED
Problems
Possible Causes
Recommended Action
Main frame travels at
1. Welding control faults.
1. Check welding control.
manual mode but not
under auto mode.
* Please refer to Lincoln NA3
for details.
Vacuum fails to recover flux. 1. Both flux valves are open.
1. Close one of the valves.
2. Flux separator is open
2. Close separator lid.
3. Air leak at the flux hoses.
3. Repair or replace flux recovery
hose.
4. Flux valves are incorrectly adjusted.
4. Adjust flux valves.
5. Vacuum is blocked.
5. Check vacuum.
No flux feeding
1. Flux inlet valve is too close.
1. Adjust and open up flux valve.
2. Flux hose leakage.
2. Repair or replace flux recovery
hose.
Insufficient amount of flux
1. Suction nozzle is too far from the
1. Adjust suction head position.
is recovered.
weld.
2.Wrong flux suction nozzle setup.
2. Adjust suction head angle.
Flux belt is burnt by slag.
1. Flux support belt too close to the
1. Adjust the distance to .6''-.98''
weld seam.
(15–25mm).
2. Weld travel is off.
2. Switch on weld travel.
Note: The electrical circuitry of the YS-BGW is straightforward and can usually be traced through by a local
electrician using the electrical schematic diagram included in this manual.
Consult the factory if all the above measures fail to resolve the problem.
