Lincoln Ranger won't weld.

I have a Lincoln 8551 weld-power unit that welded fine last December. Started it
to use two weeks ago and it won't strike an arc. Polished the armature and the
brushes are in great shape, that about exceeds my troubleshooting skills. Any
thoughts? I've been told that these units can lose excitation.
Reply to
David Aikin
Loading thread data ...
Is this the unit you're talking about?
formatting link
A little more info would help. For example, will it still generate AC power? If yes, the excitation is likely ok.
hth,
bob prohaska
Reply to
bob prohaska
Had a ranger 250 that would generate AC fine, but stopped making an arc.
Fortunately in warranty. Darn thing took a main circuit board replacement to fix, from what I recall- the guy working on it went through most other replaceable bits while I watched, but didn't have one of those on hand, so I left it and it was shipped back to my local store when fixed.
Reply to
Ecnerwal
"David Aikin"
formatting link

Reply to
Jim Wilkins

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.