Greetings abroad.
I do not have a Sealey, but a German Güde EASY MIG. This is a MIG/MAG gas/nogas unit. But there is no directory for Güde´s ;-)
It appears those low-end devices are all the same and suffer from the same problems.
With the help of this forum I managed to fix most of them (like wire feed overrun and erratic wire feed), but one thing persists:
When I push the torch trigger knob, it takes a small amount of time until I hear the mains relay go click. This is no problem.
But when I release the knob, it takes the very same amount of time to release. During this time the feed motor keeps spouting out wire.
And I checked it: the motor stops properly, it´s the relay that does not drop off.
There seems to be a delay built into it. I did not really know what keyword to look for, but I found a thread here:
https://www.mig-welding.co.uk/forum/threads/sealey-em130xt-wirefeed-power-modifications.66647/ that clearly shows an R/C on the relay.
And others have this cap in parallel to the relay too. For a snubber this is way too big. And I have never any snubbers seen used with that kind of tiny relay.
The only reason for a delay I can imagine is to allow a pre/postflow of gas through the mechanical valve that is there (there is no magnetic valve).
This is irrelevant for me, since I only use flux.
However, I do not have any reference, do all machines having this delay built into them?
I may just add a flyback diode to make this stop fast, or is this a bad idea for a reason I cannot imagine?
Thanks.
I do not have a Sealey, but a German Güde EASY MIG. This is a MIG/MAG gas/nogas unit. But there is no directory for Güde´s ;-)
It appears those low-end devices are all the same and suffer from the same problems.
With the help of this forum I managed to fix most of them (like wire feed overrun and erratic wire feed), but one thing persists:
When I push the torch trigger knob, it takes a small amount of time until I hear the mains relay go click. This is no problem.
But when I release the knob, it takes the very same amount of time to release. During this time the feed motor keeps spouting out wire.
And I checked it: the motor stops properly, it´s the relay that does not drop off.
There seems to be a delay built into it. I did not really know what keyword to look for, but I found a thread here:
https://www.mig-welding.co.uk/forum/threads/sealey-em130xt-wirefeed-power-modifications.66647/ that clearly shows an R/C on the relay.
And others have this cap in parallel to the relay too. For a snubber this is way too big. And I have never any snubbers seen used with that kind of tiny relay.
The only reason for a delay I can imagine is to allow a pre/postflow of gas through the mechanical valve that is there (there is no magnetic valve).
This is irrelevant for me, since I only use flux.
However, I do not have any reference, do all machines having this delay built into them?
I may just add a flyback diode to make this stop fast, or is this a bad idea for a reason I cannot imagine?
Thanks.