DC Voltage Output

[bartles]

Working on a B&S Model 254707-0120-01. Is there a way to determine the DC output of the B&S alternator, part number 592828/ superseded Part number 391529?

 

[Mower King]

Working on a B&S Model 254707-0120-01. Is there a way to determine the DC output of the B&S alternator, part number 592828/ superseded Part number 391529?

Both AC & or DC output on mowers, can be measured with a OHM meter, while engine is running.

 

[Rivets]

You can get a pdf manual for your engine at this site, just follow the instructions. It is a secure site and the manual will contain testing instructions. https://www.mytractorforum.com/threads/briggs-statton-repair-manuals.242387/

 

[StarTech]

Both AC & or DC output on mowers, can be measured with a OHM meter, while engine is running.

Then I must have been doing wrong all these years using volt and amp meters.

 

[Rivets]

I’m sure he meant a VOM meter. Common mistake to refer to it as an Ohm meter.

 

[bartles]

Thanks to all for your replies... haven't started the engine yet. I just rebuilt it and have begun the mower restoration. I was thinking about installing a low amperage cooling fan to keep the cones and drums from getting hot. On later model Dixon's there was a fan on the top of the cone shaft. I'll just wait till engine start and measure the amp output then. Merry Christmas!!!

 

[artemjemmy]

Working on a B&S Model 254707-0120-01. Is there a way to determine the DC output of the B&S alternator, part number 592828/ superseded Part number 391529?

I find the best way to measure if the battery is charging is to use a DC current clamp and put it on the positive battery terminal with the engine at full throttle and all of the accessories (and electric PTO, if applicable), and see if current is flowing into the battery. Fool proof method and very useful. Applies to cars too!

 

[Scrubcadet10]

That stator (DC ONLY) was previously 696578, and the rated amperage is only 3 amps at 3600 RPM.
I'd imagine the voltage ranges from 12 to 14.5 DC.

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[hlw49]

No matter what the amperage out put of the charging system the voltage output has to be more than a fully charged battery which is around 12.75 volts or over time the load on the battery would kill the battery since it would not be charging the battery.

 

[bertsmobile1]

B & S stators are colour coded
After that there is 3 sizes of magnets
The outputs are listed in the "repower guide" and there is a poster that is all over the web
So if you care to post a photo of the plug on the end of the stator wires ( not the engine to mower plug ) we may have a chance of identifing it
The same stator can have several different outputs depending upon the magnet size and the regulator / rectifier used .