My switch was burn on one side. add first I hardwired the burn side to test the welder out. But I wanted to remove the switch and just add Quick disconnect sockets to it. But now I'm confused. I see 5 connection . I know which on are for AC but how do you connect for DC.
Reply:You can download the manual from Lincoln Electric. But...I don't think you will find anything with a picture of the polarity switch. You should have taken a picture of the switch before you started disconnecting stuff; I would have also label each wire. You should be able to figure this out if you know how to read schematics; if you don't, then you need to learn. Replacement switches are not cheep; and if connected wrong; the smoke will spill out.
Reply:is your welder have a round top or a flat top. I found a drawing for the flat top that might help. If your welder is real old the sequence DC+ DC- AC might be in a different order.I will try to post it tonight. Have to copy it out of a service manual as a single page and then it can be posted here. List price on that switch is around $200.You might be able to bypass the switch and have 4 terminals on the welder front. 2 AC and 2 DC. Need the code number for more help. If you can't read the diagram pasted to the cover, call Lincoln with your code number and the will fax or e-mail you a clean copy.
Reply:
This switch is the newer codes that has DC+ in the center position. Sent from my iPhone using TapatalkSteve1990 Miller Dialarc 2501993 Miller Maxstar 140 STR2015 Lincoln MP2101966 Lincoln SA200 Redface
Reply:Here is the lay out of the switch used in the flat top model.Should be close. DC+ and DC - may be backwards from your model.need code number
Attached Images
SVM228A.pdf (41.3 KB, 60 views)
Reply:If you cannot find the schematic, you can use a meter to find the output information too. Pictures can also be used to help.Snap some photos of the wiring involving the switch and any other circuits connected to the switch. If you wish to install 4 quick connect cam terminals, we can identify the wires without much doubt. Replacement of the switch is also possible.Stay safe and have fun.Kolas
Reply:I am interested in purchasing the Polarity ac/dc switch assembly can you recommend where i can please
Reply:
Originally Posted by koon koon
I am interested in purchasing the Polarity ac/dc switch assembly can you recommend where i can please
Reply:Lincoln uses code number on machine for parts.
Reply:
Originally Posted by koon koon
I am interested in purchasing the Polarity ac/dc switch assembly can you recommend where i can please
发表于 2021-9-1 23:14:28
