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Help with loose alternator

 
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tmathieu(at)msn.com
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PostPosted: Tue Jul 18, 2006 5:04 am    Post subject: Help with loose alternator Reply with quote

�I own a 500 Shrike and I have an alternator problem. My right alternator keeps coming loose after about 3-5 hours of flight. We have tightened this atleast twice. Anyone have any suggestions as to what is causing this. The alternator is a rebuilt unit with the exception of the outer casing (might have worn bolt holes?). We also need a rebuilt attitude indicator. Any suggestions would be greatly appreciated.

Tommy


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Kamala(at)msn.com
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PostPosted: Tue Jul 18, 2006 5:18 am    Post subject: Help with loose alternator Reply with quote

<?xml:namespace prefix="v" /><?xml:namespace prefix="o" /><![endif]--> tm, please forward your phone number�� I have just replaced one on my 680. mason�
[quote] ---


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nico(at)cybersuperstore.c
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PostPosted: Tue Jul 18, 2006 8:30 am    Post subject: Help with loose alternator Reply with quote

[img]cid:image001.jpg(at)01C6AA4C.6979BC60[/img]
As a general statement, when an alternator comes lose without apparent cause, your first suspect should be a failing bearing causing excessive vibration. If that’s the case and it’s not dealt with asap, the commentator might eventually rub against the outer coils (generator terms, might not apply to alternators but what the heck) and eventually rip the unit from its mountings in flight. A bench test would show whether there is vibration.
Nico



From: owner-commander-list-server(at)matronics.com [mailto:owner-commander-list-server(at)matronics.com] On Behalf Of Tommy Mathieu
Sent: Tuesday, July 18, 2006 6:00 AM
To: commander-list(at)matronics.com
Subject: Help with loose alternator


�I own a 500 Shrike and I have an alternator problem. My right alternator keeps coming loose after about 3-5 hours of flight. We have tightened this atleast twice. Anyone have any suggestions as to what is causing this. The alternator is a rebuilt unit with the exception of the outer casing (might have worn bolt holes?). We also need a rebuilt attitude indicator. Any suggestions would be greatly appreciated.

Tommy


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tfisher(at)commandergroup
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PostPosted: Tue Jul 18, 2006 9:23 am    Post subject: Help with loose alternator Reply with quote

I was flying a Baron which has direct drive to the alternator, when that alternator seized it was pushed out of the engine case breaking the case and pouring all the oil out quickly, flew to destination on the other engine.
Small problems can lead to big ones in a hurry.

Tom F.
C-GISS
680FLP (Mr.RPM)
[quote] ---


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BillLeff1(at)aol.com
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PostPosted: Sun Jul 23, 2006 9:01 pm    Post subject: Help with loose alternator Reply with quote

Check your prop� and engine balance. Has there been any other work done when this started? Have you checked the alternator rotor for balance?

Bill Leff


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