recapen(at)earthlink.net
Guest
|
 Posted: Fri May 02, 2025 3:01 pm Post subject: B&C 60Amp alternator failure modes |
 |
|
I will take a picture next time the lower cowl is off.
This was a one-time so I will fly again locally with my backup alternator!
Sent using myEarthLink
On Fri May 02 15:50:44 EDT 2025 Charles Kuss wrote:
The B&C alternators are based on real Nippon Denso alternators. Depending on the model and the age of the alternator, you may be able to remove the brush pack externally. The older model alternators brush pack is retained with 2 screws at the rear of the alternator. Take the screws out and you can withdraw the brush pack.
Once the brushes wear to the point that less than 1/2 of the remaining brush is held inside the brush holder, they can "cock" and bind up. Same thing that can happen on your car, truck, motorcycle or aircraft's brake calipers. Once more than 50% of the piston comes out of the caliper, it will "cock" and bind up. This is the reason that there is a minimum thickness for both brake rotors and brake pads.... to prevent that from happening.
Ralph, send me a photo of the rear of your B&C. I can then highlight where the mounting screws are, assuming it's the correct style of alternator.
Other alternator style require you to split the 2 case haves of the alternator to inspect the brushes. Once the alternator is removed, that is a fairly easy job.
Charlie Kuss [rhymes with puss]
PS I've CC'd this email to you personally, in case you don't have my email address.
On Friday, May 2, 2025 at 07:57:22 AM EDT, < (recapen(at)earthlink.net)
recapen(at)earthlink.net (recapen(at)earthlink.net)> wrote:
--> AeroElectric-List message posted by: < (recapen(at)earthlink.net)
(recapen(at)earthlink.net) (recapen(at)earthlink.net)
recapen(at)earthlink.net (recapen(at)earthlink.net)
Thanks Joe,
I have a spot where I can check the voltage directly at the battery - I will
set that up for the next test flight!
The belt is the next easiest to check...
I can reseat all of the connections...
Anyone know how to check for worn brushes?
Thanks again,
Ralph
--
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
