So it would appear the motor is a boat anchor, when power is applied it hums. I am going to try adjusting the brush retainer a few degrees and see if I get any results, but I am not expecting anything. Time to start looking for a replacement motor...

Here are the pics from today, the 2T22 is their current running siren at the station. The Sterling came apart pretty easy, they want me to tinker with the motor and get it running. I fear it may be toast though. This thing was an absolute monster in size and weight, it is older than dirt and certain...

Well I took down my Tbolt as the bracket I made for it was about to rip out from the leverage of the horn. The weather here has been pretty wet so I suppose that contributed to it. I will be repainting it as I did a half arse job last year seems how the weather was getting cold and the paint wouldn'...

That looks pretty damn good if I must say so myself!

I have a question, how do these come apart? Are they built similar to a 2T22? I may be restoring a M-10 for a local FD but it is on a 5 story building on top of a 4' stand so it would need to be craned or broken down. Crane will not be an option lol

Yes, you use a puller. For me taking the rotor off was easy, getting it back on took me a very long time using a block of wood, a torch and a hammer...

As far as getting one of those pigs in the truck... bring an engine hoist or a few good men lol.

Although no sirens, one of our dispatchers did a christmas "Santa spotting" all county announcement

The STL-10 and low tone versions of the Model 5 were low frequency sirens. A great portion of the Sentry sirens are also lower frequency. And about the extinction of mechanical sirens- maybe because of a little thing called technology.

If I can find some sort of clamp om base for the motor I would go for the whole Sterling idea, guess I will look around ebay and Grainger.