Hi All.
Thought I'd share this with the community. I have a 20yo aussie Transmig 130 Twin (yet another Cebora rebrand), and the arc start and wirefeed were getting erratic of late.
For me the solution was to clean up the switch contacts inside the torch. If anyone needs more guidance reply and I'll help where I can. Otherwise, the key points are:
1. Safety first - turn off and disconnect.
2. A table is best to work on, with maybe some support for the hose so that it doesn't fall to the floor by accident.
3. The torch is held together by 2 screws and a wire clip at the front.
4. The two shell halves slide into each other at the nozzle end
5. The brass block is a combined switch and gas valve. Be careful here as the plastic shell of the torch holds the brass block assembly together.
6. Once disassembled the brass block can come apart. There are two wires terminated on top of the brass block. That top plate can be separated gently from the rest of the brass block, however, be careful here as there is a small spring inside that is easy to lose.
7. Inside the top plate are 2 stationary copper prongs. These can be cleaned up appropriately - some fine abrasive paper or a points file.
8. Inside the brass block is a thumb-tack looking pice of copper which is the moving part of the switch. That is driven upward into the prongs when the trigger is pulled. The copper thumb-tack can also be cleaned and polished.
9. Don't forget the spring when re-assembling - otherwise the trigger won't bounce back.
10. Align the top plate carefully when re-assembling as it has a seal to stop gas leaking out the side of the brass block and torch.
Hope thats of use to someone in the future.
Thought I'd share this with the community. I have a 20yo aussie Transmig 130 Twin (yet another Cebora rebrand), and the arc start and wirefeed were getting erratic of late.
For me the solution was to clean up the switch contacts inside the torch. If anyone needs more guidance reply and I'll help where I can. Otherwise, the key points are:
1. Safety first - turn off and disconnect.
2. A table is best to work on, with maybe some support for the hose so that it doesn't fall to the floor by accident.
3. The torch is held together by 2 screws and a wire clip at the front.
4. The two shell halves slide into each other at the nozzle end
5. The brass block is a combined switch and gas valve. Be careful here as the plastic shell of the torch holds the brass block assembly together.
6. Once disassembled the brass block can come apart. There are two wires terminated on top of the brass block. That top plate can be separated gently from the rest of the brass block, however, be careful here as there is a small spring inside that is easy to lose.
7. Inside the top plate are 2 stationary copper prongs. These can be cleaned up appropriately - some fine abrasive paper or a points file.
8. Inside the brass block is a thumb-tack looking pice of copper which is the moving part of the switch. That is driven upward into the prongs when the trigger is pulled. The copper thumb-tack can also be cleaned and polished.
9. Don't forget the spring when re-assembling - otherwise the trigger won't bounce back.
10. Align the top plate carefully when re-assembling as it has a seal to stop gas leaking out the side of the brass block and torch.
Hope thats of use to someone in the future.
