- Are you sure that mercury is still in the rollers?
- Do you see a mercury leakage? (mercury has a silver colour)
- Do you have copper wire breaks frequently?
- What diameter has the copper wire?
- Are you sure you are using pure copper wire? (It happen ones, that steel-wire with a copper shield has been used by a customer)
- What transformer step is in function at the moment? (see the big black manual switch)
- Did you recently increase to a higher step on the transformer switch?
Pictures to be send:
- Send us some clear pictures from the welder
- Front side with the copper wire in view
- Control panel
- Manometer the air regulator on main air inlet (to see the adjusted air pressure > responsible for welding pressure)
- Send us pictures of the pre-rounded working pieces (view from the top)
- Check the isolation of the lower welding arm:
- Disconnect the copper plate underneath the welding tranformer, and measure the isolation of the lower arm to the frame of the machine (only if z-bar is already insulated by brown insulating plates left and right!)
- Regroove both welding rollers with the delivered regrooving tool
- Send pictures of the new grooves (to avoid misunderstanding)
- If you believe new grooves are not needed, send pictures of existing grooves
- If you have spare welding rollers, change them. Normally the lower (smaller one) has to be changed more often than the upper one.