Made by Lincoln, not in CHina. Not HF.
G Mann via Mercedes wrote on 11/12/19 12:54 PM:
Take the welder back to Harbor Freight... ask them to replace it with a new
one..
I bet they will....
Worth a try, in any case..
They now have a quite good product support in place..
On Mon, Nov 11, 2019 at 10:12 PM Curley McLain via Mercedes <
mercedes@okiebenz.com> wrote:
Well, yes, but finding an exact replacement is problematic.
See the last few posts on this thread, Page 1.
https://forums.yesterdaystractors.com/viewtopic.php?t=1362696
It has 6 button diodes. Apparently similar to what is used in car
alternators. As of now, the volt and amp rating are unknown.
this schematic shows the big brother 240V version of this welder, and if
you look at the rectifier, mine is similar, but it only has one 6 diode
rectifier.
https://www.weldmart.com/main/technical/centurymig_troubleshooting.html
Or I could buy/scrounge some other Full wave bridge rectifier.
as seen in page 2 of this thread.
https://forums.yesterdaystractors.com/viewtopic.php?t=1362696
(Same as first link, but page 2.)
Dimitri Seretakis via Mercedes wrote on 11/11/19 10:59 PM:
Is the diode replaceable?
Sent from my iPhone
On Nov 11, 2019, at 11:28 PM, Curley McLain via Mercedes <
mercedes@okiebenz.com> wrote:
Doing some online research, it seems like a blown diode makes a welder
buzz loud.
I was welding on an MB one day. in the merry merry month of
november...
then the welder started buzzing when I was not welding. I shut it down
right away, then tried it again a couple times. I thought it sounded like
the fan may be loose on the motor shaft.
THe welder is a Century 100 125v 100 A mig. 20% duty cycle. I
have not used it more than 20%.
I took off the cover, unplugged the wires to the fan, the gas valve,
and the wire feed motor. THat left only the 2 transformers. Same buzz
when I plugged it in and turned on the switch. (Without the fan, gas valve
or wire feed.)
Here is the question. I assume this means there was an insulation
failure somewhere. Is this correct or would something else make it buzz
loud? Tomorrow is supposed to be 30-40º colder temp, so I thought I'd try
it when the temp is 30-40º to see if that makes a difference. It was not
hot today, about 70 or so. That should not have been a factor.
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