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Sirenfan1000
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Model A Issue

Fri Aug 28, 2015 1:18 am

for those who owned a Model A siren. My red/black one has been acting up where i plug it in and it just sits in silence. I spin the rotor and it starts up, also when it does the pitch goes all over the place. Assuming its brushes, and this motor has the black plastic cover on it. How easy is it to pop that off and change the brushes?
owner of a Sentry F2 4 Model D's 2 Model L's 4 Model A's A Model J a Sireno Model D, Edwards Model F and a Western Cullen Hayes Mechanical Bell

connerdstines
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Re: Model A Issue

Fri Aug 28, 2015 1:33 am

The little black plastic caps on the steel case motor? Or the solid black metal case motor?
Down to a Thunderbolt chopper, still a few goofy flashlight-siren combos, and a Model L.

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Sirenfan1000
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Re: Model A Issue

Fri Aug 28, 2015 1:35 am

solid black case motor
owner of a Sentry F2 4 Model D's 2 Model L's 4 Model A's A Model J a Sireno Model D, Edwards Model F and a Western Cullen Hayes Mechanical Bell

connerdstines
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Re: Model A Issue

Fri Aug 28, 2015 1:36 am

Sirenfan1000 wrote:solid black case motor
I'm fairly certain those motors are soldered together. I've tried many times to take one of those apart and it just won't budge.
Down to a Thunderbolt chopper, still a few goofy flashlight-siren combos, and a Model L.

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Sirenfan1000
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Re: Model A Issue

Fri Aug 28, 2015 1:41 am

ah ok, was hopin there would be a way to take it apart, guess il leave it be until it totally dies and will no longer work
owner of a Sentry F2 4 Model D's 2 Model L's 4 Model A's A Model J a Sireno Model D, Edwards Model F and a Western Cullen Hayes Mechanical Bell

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TrainsAndSirens1
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Re: Model A Issue

Fri Aug 28, 2015 2:51 am

I think it's the bearings are going bad. Try to put WD-40 on the bearings and see if it would fix the problem.
Owner of a -130, Modulator 6048, B-Series 1003,1000B, 3016, STH-10B, Little Giant, two 5As, 2, 2T, Model B9, 2 Model Ds, 4 Model As, Faraday Type 2, OC-9, 2 AR Timers, other. Skywarn Spotter.
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Chicagosiren-hunters
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Re: Model A Issue

Mon Aug 31, 2015 1:50 pm

could you show us a picture of the motor?
Proud owner of a Fedelcode Mach. 3 (dual rotor), Model 2, 3 A’s, 2 D’s, J, 76A, Interstate Machines F, Sparton 35, & Darley C987
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holler
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Re: Model A Issue

Sat Sep 05, 2015 12:22 pm

That motor is two steel halves pressed together. It's a royal PITA to get apart and put back together, and the brush holder design is terrible.

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Sirenfan1000
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Re: Model A Issue

Fri Sep 11, 2015 1:30 am

so Jeb safe to assume its time to retire it?
owner of a Sentry F2 4 Model D's 2 Model L's 4 Model A's A Model J a Sireno Model D, Edwards Model F and a Western Cullen Hayes Mechanical Bell

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