Fronius Robacta Drive CMT W Manual De Instrucciones página 66

Poor wirefeed
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The welding torch becomes very hot
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66
Wire does not fit
Check the position of the wire inlet nozzle relative to the feed rollers,
and correct as necessary
Brake force on the CMT wirefeeder set too high
Set the brake on the CMT wirefeeder to a looser setting
Hole in contact tube constricted due to deposits
Change the contact tube
The wire feed inner liner or wire feed insert is defective
Check the wire feed inner liner and wire feed insert for kinks, dirt,
etc. ; change the faulty liner or wire feed insert
The wirefeed rollers are not suitable for the wire electrode being used
Use suitable wire feed rollers
The wirefeed rollers are exerting the wrong contact pressure
Check the contact pressure, adjust if necessary
The wirefeed rollers are soiled or damaged
Clean the wirefeed rollers or exchange them for new ones
Inner line was kinked while being inserted
When inserting the inner liner, only handle it around the infeed tube
The inner liner has been cut too short
Replace the inner liner and cut it to the correct length
Welding wire worn due to heavy contact pressure at the feed rollers
Reduce contact pressure at the feed rollers
Welding wire contains impurities or is corroded
Use high-quality welding wire with no impurities
Union nut on torch neck connection loose
Tighten the union nut
The welding torch has been operated beyond its maximum duty cycle.
Lower the welding power or use a higher-capacity torch; observe the
duty cycle and loading limits
Coolant flow rate too low
Check coolant level, coolant through-flow, cleanliness of coolant, ar-
rangement of hosepack, etc.