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Help with Hobart Navy Welder

youngunbd

New member
111
10
0
Location
Corvallis, Oregon
I bought a Hobart welder off craigslist recently. Normally Miller's literature department can send me a manual on the unit, but since it was a navy contract, they're hands off

I am trying to find a manual so I can get the front stickers remade and make sure the wiring is correct, I am repainting the welder to match the truck it is going on and need to sand the face plate and remove the rust. Other than that, 100% duty cycle 300 amps is hard to argue with for $600!!

If the photos are too hard to read, Model MA-300-G
Serial 82WS08604
year 1982
USN 51-76643


Hobart tag
spec 6525-1
Model 300G



IMG_20160812_170318773.jpgIMG_20160812_170345875.jpg
 
Last edited:

youngunbd

New member
111
10
0
Location
Corvallis, Oregon
I have searched and have viewed all of those links

As the one suggested emailing Miller literature department, I already have, they can't help since it was a navy unit

Info for the MA-300-G is sparse
 

Jericho

Well-known member
1,180
69
48
Location
Landaff NH
Is there a call out for the Tech Order, Tech Manual Naviar pub on the unit anywhere I have one very similar , Army Unit , likely older, What is it powered by ?
 

Jericho

Well-known member
1,180
69
48
Location
Landaff NH
Mine runs a Kaiser F head 4. (jeep) if you have a ford its likely early 60s mid seventies ? The basic wiring is easy to trace , just get it on a sheet of paper and figure it out, multi meter is your friend lol
 

MatthewH

Member
401
2
18
Location
Boyne City Mi
Contact Hobart directly. Even though its military, and they no longer support the unit, they will have a pdf file of the original owners manual.
Went threw the same thing with the Hobart welder/genny out of my Dodge M887, sent them an email, couple days later had a pdf file, which included wiring schematics'
 

youngunbd

New member
111
10
0
Location
Corvallis, Oregon
Contacting Hobart directly worked! It wasn't for the exact spec welder I had but is close enough to get me going!

There is an odd wire from the resistor for the coil going directly to the battery from the previous owner... No wonder it didn't want to shut off on its own!

Time to tune the little Ford up
 
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