300w Charging Set Problems

[James D Teel II]

Hi Mike. I did try to start it with a good 12v battery. It will barely turn. You’re the second to suggest that it might be a dirty rheostat. It has to be something simple.

[Mike K]

Originally Posted by James D Teel II

Hi Mike. I did try to start it with a good 12v battery. It will barely turn. You’re the second to suggest that it might be a dirty rheostat. It has to be something simple.

Could also be worn brushes or the commutator needs cleaning - or the brushes not seating correctly.

The OM&M made examples are more common here.

The post-war British made BSA manual is on-line http://www.howardengineerium.co.uk/I...t%20Manual.pdf

[James D Teel II]

All good suggestions, and thanks for that manual. It’s slightly different than the one I have.

[James D Teel II]

Anyone have any idea what the resistance value of this filterette is supposed to be? All I’m getting when I try to use a battery to start the set is a spark at the start switch and the set just tries to turn.

Attached link is of me trying to start it before restoration. It wouldn’t start because the magneto was bad amongst other things. As you can see, it’s turning very well here.
https://youtube.com/shorts/b1L97ZSMhms?feature=share

[David Dunlop]

Hi James.

No Filtrette specifications at all in any of my Chorehorse manuals. In 1940 Canadian money, however, it was worth $28.00.

A probable long shot, but did the maker bother to stamp/print the specs anywhere on the Filtrette itself?


David

[James D Teel II]

Hi David. There’s nothing I can find on it anywhere that shows any values. As you can see, it doesn’t have much of a value; at least this one doesn’t.

[James D Teel II]

Hi Chris. I have polarized it and it’s still a no go. I was telling Jordan Baker earlier today. When I try to start it using the battery, I get a spark behind the start button. The motor tries to turn, but that’s it. You can see right behind the start button where the spark takes place. There’s s bit of pitting there. Has it been doing it all along? I’ve no idea. I only noticed it when I took off the side plate.

[Chris Suslowicz]

Originally Posted by James D Teel II

Anyone have any idea what the resistance value of this filterette is supposed to be? All I’m getting when I try to use a battery to start the set is a spark at the start switch and the set just tries to turn.

Attached link is of me trying to start it before restoration. It wouldn’t start because the magneto was bad amongst other things. As you can see, it’s turning very well here.
https://youtube.com/shorts/b1L97ZSMhms?feature=share

The filter resistance should be very low, as the set can charge at 20 amps.

If the output voltage is really low _and_ it won't run as a motor when the start button is pressed with a charged battery connected I'm thinking the stator may have been demagnetised somehow (connecting it up backwards may cause this if you try to start it).

I don't have any manuals for this (even though I have an unissued one in its crate - someone stole the toolbox before I bought it ) so I can't help much on this one.

If there's a section on "Remagnetising the generator" it's probably worth a look.

Best regards,
Chris.