What kind of blower does this Thunderbolt use?

[Hacksaw]

Another bad rotator? I think you can still buy them from Federal, since they were on early 2001's.

[coastalsyrolover]

Sounds like a 4 to me...

[Tyler]

Another bad rotator? I think you can still buy them from Federal, since they were on early 2001's.

I'm not sure that they sell the old rotators anymore, but either way, the newer belt less unit will work, RCM just needs a little work for it to use 48 volts instead of 120 or 240 for the rotator. If it's 3 phase then that's a another issue .

[Greenfield1003]

You could always order a belt off of ebay or something...

[Tyler]

You could always order a belt off of ebay or something...

That might not be the issue. The gear reducer could've ran out of oil and stripped out/seized. That very well could've been what happened from the way that the rotator gradually slowed down until it finally stopped working at all.

[Greenfield1003]

You could always order a belt off of ebay or something...

That might not be the issue. The gear reducer could've ran out of oil and stripped out/seized. That very well could've been what happened from the way that the rotator gradually slowed down until it finally stopped working at all.

If that's the case, then what would the best option be?

[Greenfield1003]

Also the two videos that I linked are of the exact same siren. They were just taken at different angles and the second one was taken before the first one so the rotator hadn't quite died yet

[Tyler]

You could always order a belt off of ebay or something...

That might not be the issue. The gear reducer could've ran out of oil and stripped out/seized. That very well could've been what happened from the way that the rotator gradually slowed down until it finally stopped working at all.

If that's the case, then what would the best option be?

Either find another gear reducer to put on it, replace the rotator unit entirely, or replace the entire siren. From an EMA standpoint, more than likely if it is the gear reducer, they would just replace it.

[coastalsyrolover]

Well... depending on the EMA. For whatever reason, if something "breaks down" some people would rather just scrap the entire "old" lineup because well... they're old... that single tone bolt in HI had a blower and rotator failure ( I think mister murr said it was because of the delay relay) and they put a "vastly inferior" (mister murrs quote that I agree to) new modulator (I think) up. EDIT: also reading the OP, I wanted to say that just because other size blowers have made the siren louder, that doesn't mean that the 4M still isn't pretty stinking loud...

[Greenfield1003]

That might not be the issue. The gear reducer could've ran out of oil and stripped out/seized. That very well could've been what happened from the way that the rotator gradually slowed down until it finally stopped working at all.

If that's the case, then what would the best option be?

Either find another gear reducer to put on it, replace the rotator unit entirely, or replace the entire siren. From an EMA standpoint, more than likely if it is the gear reducer, they would just replace it.

Would you mind specifying "it" for me? Is "it" the gear reducer, rotator, or entire siren?