Measure the voltage on the arms when 'running'. Voltage ?

If so - then there is oxide in the threads and this limits the current
in the tips. Perhaps the almost pointed tips are plated. Look at them -
can they conduct ?

What are you trying to weld - some light steel strips ? or just the tips.

Martin

kklein wrote:

Thanks for your reply. I will check that out.
"Tom Gardner" wrote in message
gy.com...

On my Miller, the top tong moves to clamp. It is electrically connected

to

the welding supply with a stack of copper straps or braided copper flat
cable. Check the connections here and see if they broke.


"kklein" wrote in message
...

Need help with Miller spot welder. It's a LMSW-52. I bought at auction
while back and don't really have a steady use for it, but sometimes
something comes up and I'll try it. At first it would weld but now I

can't

get any heat out of it. The transformer hums but no weld. Any tips on

what

to check or look for would be greatly appreciated. Anybody have one of
these?
kk








--
Martin Eastburn, Barbara Eastburn
@ home at Lion's Lair with our computer
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder