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NKTBOLT
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I need Thunderbolt siren help!

Tue Oct 04, 2016 11:00 pm

Very proud owner of a Thunderbolt 1000B Full unit, a fully restored Model 5B, A Full Model 2 Unit, a Model A, a crank siren, and several mini sirens! :TBolt:

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CDV777-1
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Re: I need Thunderbolt siren help!

Tue Oct 04, 2016 11:23 pm

Sounds horrible.
Take it apart and see what's making the noise.
Simple as that.
It would have taken less time to pull the chopper to see what the noise is than it took you to make the video and upload it.
Proud owner of a garage full of junk.

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SoundMaster 391
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Re: I need Thunderbolt siren help!

Tue Oct 04, 2016 11:48 pm

That does not sound good. Here are my guesses to what the problem might be.
1. Bearings need replacement.
2. You might be missing one of the pins which keeps the chopper cap aligned with the chopper.
Owner of a Federal Enterprises Model 2, Federal Electric Model D, Sentry F2 and AR Timer
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coastalsyrolover
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Re: I need Thunderbolt siren help!

Wed Oct 05, 2016 12:18 am

Sounds like bearings. The brushes send electricity to the chopper. When you had no power the squeaking continued. Mine sometimes hum if it doesn't get a good run every once in a while...
EDIT: But I'd recommend investigating it before you run it again.
Own and love a Thunderbolt 1000 and a Model 5.

I have many hobbies and interests. And I love them all.

Christian, Lima, Oscah, November, Golf.

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FS Rotor
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Re: I need Thunderbolt siren help!

Wed Oct 05, 2016 2:42 am

The bearing is rusted.

This could be:
The brushes should be able to move a bit because they are on a spring. It seems they are pressing hard on the communicator, which ruins them.
I would suggest not running it and sending it to repair.
Proud owner of a 4/5 Thunderbolt, Federal Sign & Signal SD-10, large Heath Engineering Siren, and a bunch of smaller sirens.

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