Titan 8000 AC/DC help

[MetalArchitect]

Picked up a titan 8 AC/DC welder / generator this past weekend. Guy said it needed a new carb. I picked up a good used carb, change the oil, filter, plugs, and cleaned her up...She started right up and ran strong and pretty smooth.

So i hooked up the welding leads and nothing... got out the multimeter and I'm only getting 4.5 volts to all the receptacles and the welding leads.

Could this just be a dirty contact issue? Anyone know where to start diagnosing?

thanks
Hey at least i have a strong running 18hp kholer engine out of the deal ($300) :p

[roadkillbobb]

https://www.hobartwelders.com/owners_manual/order_oldmanuals.php
try here for an owners manual, theres a phone number mabe they have a service manual or other help..

[roadkillbobb]

did you crack open the case to look inside mabe loose wire or lottsa dirt..now its tinker time..

[roadkillbobb]

http://stickweld.com/basic-information/welder-owners-manuals/
here another link

[MetalArchitect]

Thanks for the replies RKB...
I have a general Titan manual that the PO gave me, so it has a parts brake down and what not, was just seeing if anyone had a "look here first" or "I had the same problem it was ____" type of thing...
I will have to crack into it and see what going on inside, maybe bad brushes, or hopefully it just needs a good cleaning with some compressed air.

Will electrical cleaner be OK to spray in there on the reostat and other parts? I have a MAF cleaner I think that is pretty gentle

[roadkillbobb]

i wouldnt start spraying yet, look inside and see whats going on..i havent had that problem..ask duaneb55 he seems tobe a wealth of knowledge..

[duaneb55]

Thank you very much for the compliment roadkillbobb.:drinkup:

MetalArchitect - any chance that manual has a wiring diagram? Hobart isn't as generous as Miller and Lincoln and make all their manuals available on-line so I can't see the unit controls and I'm not familiar with your unit to make many specific references. I'm sure it's similar to any number of other units but it would help to see a schematic.

How long had the unit set without running prior to you acquiring it? The rotor may just need to be flashed to restore residual magnetism. Some field control designs include a fuse that may have blown and the excitation voltage (from battery or engine generator) can't get to the brushes to excite the rotor.

However, it could be the rotor slip rings are just severely tarnished and need a simple cleaning with some fine (320 or so) sand paper.

Worse case it could be failed rotor or stator windings which can be checked for with an ohmmeter for shorts to ground/frame or opens.

A number of other things could be to blame as well but these are some of the most common. A schematic would help alot in troubleshooting and if you have one perhaps you can scan it as an image file or take a clear digital photo of it an post it up.

[MetalArchitect]

thanks duaneb55 I'll scan the schematics i have tomorrow...didn't have time tonight to take a look and futz with it... thanks again for your help

[duaneb55]

PM me when you post it so I'll be sure to see it.

[MetalArchitect]

See attached wiring schematic and parts blow-up for the generator.
http://i244.photobucket.com/albums/gg2/bluemonte81/Untitled-3-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Untitled-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Untitled-2.jpg

[duaneb55]

It's a bit fuzzy but looks pretty straight forward. Let me review it and get back to you.

[MetalArchitect]

hmmm scanned it at 720 and looked pretty good on my computer at work...probably got resized or something through photobucket! plus its a scan of a copy.

Thanks again for all your help through this I have one of the test for my architect license tomorrow so i haven't had time to look into this

[duaneb55]

Yeah, pretty hard to make out the text but some of it is OK and the symbols are good. May have to have you clarify some verbiage for me but like I said before, it's a pretty straight forward typical control method.

Take care of business, study up and get some good rest. Good luck on the test!

[duaneb55]

MetalArchitect - Check your PMs.

[MetalArchitect]

Some pics of the inside

http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4342-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4344-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4350.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4351-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4347.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4354-1.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/Misc/DSCF4355-1.jpg

[duaneb55]

How did the license test go?

Did you get my PM?

Looks really clean inside but what is this?
35832

[MetalArchitect]

yes I pm'd you back. The Test went well, thanks! That seems to be some sort of resin. what ever is coating the wire! thought it looked normal, but i gues it could have heated and melted off like that... hmmm

[duaneb55]

Did you see my PM question regarding still having the scanned images in your computer that you could e-mail me? There are a few areas of the schematic that are going to be critical for me to be able to read to guide you through some troubleshooting.

[MetalArchitect]

Duane your the BEST!!! between cleaning the slip rings and "flashing the field" the generator is putting out power at the receptacles and the welding terminals!! Made a couple test welds, and it burns real nice!

also cleaned up the case while it was apart and painted it! looks and works great now!

Thanks again

[duaneb55]

Awesome! Gotta love it when a plan comes together. The information and photos you provided were the key.:drinkup::drinkup:

To the welding projects!!!:blob3:

[MetalArchitect]

Just a couple pics of it cleaned up a bit... ans i added my logo and name.
Was a great find for $300!

http://i244.photobucket.com/albums/gg2/bluemonte81/MetalArchitect/DSCF4365.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/MetalArchitect/DSCF4363.jpg
http://i244.photobucket.com/albums/gg2/bluemonte81/MetalArchitect/DSCF4360.jpg

[duaneb55]

I like the logo MA.:drinkup: Looks good on the rig. Your design I take it?

You should consider getting with a local sign shop that works with vinyl labels and see about having some nice professionally made ones. May need to add them to your 'company' vehicle too.

And yes, a steal at $300!