- Thread starter Adamvass
- Start date
It's a mk1 mx5, but fairly heavy restoration as it was quite bad.
Making good progress now and just finished the final weld today
Sprocket welding
New Member
- Messages
- 8
- Location
- West Sussex, England
I have almost the same issue with my 130EN, I was on the second to last weld this afternoon on a Morris Minor project when the welder stopped threading the wire when I pressed the trigger.
It may be my own fault, I've had years of service with this Machine and I fitted an 4.5kg spool where I normally only use a .45kg spool, I may have strained the motor. there is a click when I press the trigger, unlike Adam's, he didn't even get the click of the solenoid. So I took the spool off to see if the sheer weight of it was causing a problem, nothing, it worked for an hour with the new spool before packing up. Just my luck with just two or three welding jobs to go and the Minor is back on the road.
the Minor in question.
It may be my own fault, I've had years of service with this Machine and I fitted an 4.5kg spool where I normally only use a .45kg spool, I may have strained the motor. there is a click when I press the trigger, unlike Adam's, he didn't even get the click of the solenoid. So I took the spool off to see if the sheer weight of it was causing a problem, nothing, it worked for an hour with the new spool before packing up. Just my luck with just two or three welding jobs to go and the Minor is back on the road.
the Minor in question.
Hello and welcome to the Forum !
It is unlikely that the additional drag of a medium-sized wire spool compared to a small one has damaged the wirefeed motor.
It is possible that the motor has just failed.....
It will be a 12v or a 24v motor, and you could test it with a 12v car battery. Disconnect one of the original feed wires from the two terminals on the motor and temporarily jumper a 12v supply to the motor.
However, first: the small transformer on the control board mentioned at the start of this thread only supplies power for the relay, when triggered by the torch switch. The actual power for the motor is borrowed from the main DC welding output, and fed through the speed control circuit on that board.
Since you can hear the relay click, the main welding transformer should be coming on, and you should still be able to strike an arc at the tip of the ( stationary ) MIG wire. Can you?
If not, try this again at all settings of the power control switches ( they burn out ), and look at the contacts of the small relay on the board to see if, after years of on/off Morris Minor tacking, they have become burnt and blackened.
It is unlikely that the additional drag of a medium-sized wire spool compared to a small one has damaged the wirefeed motor.
It is possible that the motor has just failed.....
It will be a 12v or a 24v motor, and you could test it with a 12v car battery. Disconnect one of the original feed wires from the two terminals on the motor and temporarily jumper a 12v supply to the motor.
However, first: the small transformer on the control board mentioned at the start of this thread only supplies power for the relay, when triggered by the torch switch. The actual power for the motor is borrowed from the main DC welding output, and fed through the speed control circuit on that board.
Since you can hear the relay click, the main welding transformer should be coming on, and you should still be able to strike an arc at the tip of the ( stationary ) MIG wire. Can you?
If not, try this again at all settings of the power control switches ( they burn out ), and look at the contacts of the small relay on the board to see if, after years of on/off Morris Minor tacking, they have become burnt and blackened.
Sprocket welding
New Member
- Messages
- 8
- Location
- West Sussex, England
thanks for taking the time to give such a helpful answer Eddie49, I'll try those suggestions and get back here...
