Case VAC 6 volt system

Thanks!

Joe

• 6v pos

What did they do change the diodes to get the voltage down.

Walt

Joe

I just pointed out that it is possible to have a 6v pos gnd alt on the tractor. It is also possible to buy 6v & 12v pos gnd kits for an alt at the link below and lots of other places.

I spent 30 yrs working as a marine engineer (20+ as Chief Engineer) and 4.8 years as a submarine snipe before that. I have trained numerous assistant engineers right out of college and marine academies with a smart sheet and an engineer�s license that didn�t have the engineering expertise that God gave a goose. That was just inexperience, not lack of intelligence. I learned to keep it simple and point out all possibilities till I got a handle on their potential. That is a hard habit to break, even though my posts are likely irritating and too long winded for many regulars here.

Anyway, I just counted the empty beer cans, I had 2 before supper, just swilled 2 more while writing this post and the night is still young. Not only that, I quit smoking Fri for the 13th time this year, your post upset me so bad I went out and dug around in my truck and found a carton with 8 packs. I�ve chain smoked 4 cigs and will probably smoke the rest of the pack before bedtime. I�ll probably have a heart attack before morning and it is all YOUR FAULT.

Joe

• 10SI kits

Man I am beat, forgot the day-after damage a six pack & cigs does to my body. Many years ago I was on a vessel that pulled into Mazatlan, small town then. Me and this other fool went to a little canteen to try some tequila. I don�t think the tequila was one of the premium brands, as I recall the name on the label was JACK@SS. I am like �one tequila � two tequila � three tequila � FLOOR �.. sick for days.

I am not sure your smoking theory is good advice for this old geezer. I have lots of will-power, just have to figure out where I put it last time.

Joe

I am not a medical doctor, but I do have a job that doesn"t allow me to get my hands greasy as often as I would like to.

Wow, didn"t mean to get you worked up to the point you took up smoking again... I did miss speak, I should have said generator, not alternator. The system is stock 1950. Does it than have a positive ground? And if so, does that mean positive terminal is grounded? I would like to leave it stock for the most part. With that said though is there minor things I can do without going to an alternator to improve performance?

Thanks in advance.

Dave

EARLIER (probably yours)

The generator is 3 brush type with a cutout mounted on top. The light switch may be 3 position, and if so, also part of the charging system. The gen 3rd brush is moveable and is used to adjust the gen output by changing the contact point on the commutator.

LATER

The gen is 3 brush type with a voltage regulator mounted on top. The 3rd brush is not moveable. The gen output is adjusted in the v reg. As I remember it, the adjustment is done by bending the tang on one of the contact points (I can probably hunt that info up if you need it. Perhaps some kind soul will chime in and rescue me.)

Mj is a real good guy, I was just pulling his chain. His website has a complete VA series manual that covers your tractor and many other interesting things. The link below is the first of 2 pages in that manual that pertains to the gen.

Link

Go to that page and down at the bottom G2 T5 click on the pix to enlarge and then bring up the next page to continue. There is not much useful info here but one of those 2 gens is yours if orig.

Now go to this link under Research & Info > Articles on the left side of this page.

Link

The page is generic but describes the function of 3 brush generator, cutout, light switch, etc and has other useful electrical info. There are other articles under R & I that you may find helpful.

If your gen has zero output, the residual magnetism may have bleed off or it could have been flashed with the wrong polarity and it will need to be polarized. Polarizing is a simple process but you need to positively identify the correct terminals in the v reg or on the gen.

I am going to end this here, about all I can do long distance. All my tractors are now 12v neg gnd w/alternator and the original gens and 6v components are long gone so I can not pop out to the shop and eyeball anything to refresh my memory.

Joe