Fronius Robacta TSS /i, Operating Instructions Manual, Page: 90 / 100

Cleaning brushes do not run
Compressed air supply interrupted
Set up the compressed air supply
Compressed air supply line faulty or dirty
Clean compressed air supply line and replace if necessary
Brush motor faulty
Inform service team
Valve faulty
Inform service team
No signal at the valve
Check programming;
Check connections to the robot control unit
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High-pressure gas purging not working
Compressed air supply interrupted
Set up the compressed air supply
Compressed air supply line faulty or dirty
Clean compressed air supply line and replace if necessary
Pressure regulator not set correctly
Check pressure at pressure regulator, set pressure to 5.5 - 6 bar
Pressure booster faulty
Contact After-Sales Service
Inlet pressure at the pressure booster too low
Check inlet pressure
Valve faulty
Contact After-Sales Service
Nozzle blocked
Clean nozzle, replace if necessary
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Pores in the weld seam
Too much parting agent in the inside of the welding torch
Remove residues of parting agent by blowing out the inside of the welding
torch. Ensure supply of compressed air
Too much parting agent in the inside of the welding torch
Reduce parting agent injection quantity (shorten duty cycle of pump for part-
ing agent)
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