Is the buzzer on Yanmar control panels

[ShipsWoofy]

part of the exciter circuit?

I want to remove them and add some quieter bells. I hate the thought of waking up an anchorage if leaving in the early hours. Also it is to help my own sanity, the sound goes right through me.

The thing that worries me as that a bell will surely put noise on the DC line when it is running, could this affect the exciter? As far as I am aware it is only the charge bulb that provides load, but would like to be sure.

Does anyone see a problem?

 

[fireball]

I just muffle mine with a hand ... not worth opening up and putting a wad of material in there?

 

[ShipsWoofy]

yeah, but my starboard engine stop is inside a good way from the panel, one day I will save up some pennies and buy a double length push-pull cable.

I also think a bell sounds much classier! /forums/images/graemlins/grin.gif

 

[duncan]

I can slide a switch to turn it off on my Yanmar panel............

 

[fireball]

DW - Which yanmar do you have? have you got the workshop manual?

 

[ShipsWoofy]

2 x 1GM10

Yes I do have the manual...

 

[duncan]

which panels?

 

[ShipsWoofy]

simple panels, no dials, the absolute basic

 

[snowleopard]

Definitive answer: No, you don't need the buzzer in circuit to use the engine. Mine broke so I took it out and I can't afford a replacement (I did get a buzzer from Maplins but it's too quiet to act as a warning if something goes wrong under way).

 

[ShipsWoofy]

Is the feed to it just a straight forward 12v? I see no reason for it not to be, but before I start searching for some nicer sounding bells it would be good to know..

As to not having the buzzer, interesting, but as it also explodes into life for temp or oil, I think I will keep it alive in some fashion. Last year I started the engine after doing some work and a mix up between the crew and me caused the sea-cock to be closed. About 30 seconds later the temp alarm started screaming and the engine was stopped pretty damn quick. I would be amazed if I noticed the lights in bright sunlight.

 

[snowleopard]

Yes, the feed is 12v. the circuitry inside consists of 4 diodes so that any one of the alarm circuits can trigger the buzzer (charge, oil, temp & saildrive). The buzzer itself is a piezo transducer with an oscillator circuit to drive it.

I cut out the oscillator and wired a self-contained 12v buzzer straight to the output from the diodes. It works but isn't loud enough.

I wouldn't advise anyone to dispense with the audible warning. As you say, there is no chance of spotting the warning lights in sunlight.