Hand crank Secomak Type 447 drivetrain

[The Big Labowski]

I have a couple questions:

1. Can i spray down the gears with cold galvanizing compound to keep them from oxidizing any further?

2. If the gears do break, can i send the broken samples to a machine shop and have them cut new gears but with a silenced drivetrain. I want to get the gears as quiet as possible.

3. The finger guard is crumbling away at the bottom ties. Whats the best solution?

thanks

[SirenMadness]

I think you can spray metal-protection compounds on there. Just do each gear separately.

I think you could send the gears to a machine shop. They'll try to put the teeth at a diagonal angle for noise reduction.

I don't know how to solve your third question.

[The Big Labowski]

that leave the teeth attatched to the rotor. what do they do about that?

[The Big Labowski]

there she is. along with a model D.

[SirenMadness]

Are you saying that the spray will attach the teeth to the rotor, or putting the teeth diagonally?

[The Big Labowski]

no, spraying the gears for a non corrosive layer. thats all. but i mean how to make the gear teeth on the rod attatched to the rotor match the spur gears.

[The Big Labowski]

i post pictures of sirens and ask a question. i do not deserve to be smited...

[SirenMadness]

I don't know what the gear gear system looks like; I can't make a reasonable conclusion.

B.T.W., you were not smited for asking a question. I don't know why.

[Adam Smith]

Dont spray the gears with cold galvanizing compound, that will not help. You need to regrease them with a gearbox grease that is safe for aluminum (one free of Molybdenum Disulfide).

Having new helical gears made at a machine shop would be $$$$$$$, way more than the cost of a new siren, or even 3-4 new sirens.

A good high-pressure grease will make the 447 as quiet as it can get, which is not Carter quiet.