Oil & Fuel MF 135 battery not charging, what to do?

[Soundguy]

Post a pic r let us know if it is a Genny.

 

[jrmcdona]

 

[jrmcdona]

The blue loader hides a lot of the tractor.

 

[Soundguy]

Looks like an alternator

 

[murphy1244]

Looks like an alternator

:thumbsup: data plate for 1971

 

[pmsmechanic]

Alternators are easy to check if they are charging or not. High tech use a volt meter on the battery. Anything above 13.2 volts is charging. Should be around 13.8 minimum -14.5 volts after running for a bit. Low tech touch the rear bearing with a screw driver or similar while the tractor is running. If it's magnetized the alternator is charging.

 

[jrmcdona]

Ok will do that.

I could also store it in the garage but frankly I think the rodents might get in there also as its not super "tight".

 

[Soundguy]

If not charging, check out wording and external reg.

 

[jrmcdona]

Wasn't able to feel any magnetic pull while the tractor was turned on via the rear bearing but I maybe screwing that up. The guy I bought it from said he had the alternator tested fine a few times. However, rather than take his word I will get a volt meter and see how it tests, I don't have at the moment.

Since the battery charges on his battery charger, does that eliminate it being a battery issue?

 

[Soundguy]

If it can be charged on a charger, start and run all day, then yeah, bat is at least satisfactory for now.

Charge voltage test will likely show no increase over nominal 12.6