Aquasignal Series 41 Bi-colour Bulb Change?

[JumbleDuck]

I have an Aquasignal S41 bicolour lamp at my pulpit: as near as I can tell, it's one of these
http://www.asap-supplies.com/web_images/Products/Products/large/721405.jpg[/img}
I need to change the bulb, but I can't work out how to open it up. There is a gap of about 3mm between backplate and case along the top, but it does not seem to want to open any more, and I don't want to force it unduly.

Any advice would be much appreciated.

 

[VicS]

I have an Aquasignal S41 bicolour lamp at my pulpit: as near as I can tell, it's one of these
http://www.asap-supplies.com/web_images/Products/Products/large/721405.jpg[/img}
I need to change the bulb, but I can't work out how to open it up. There is a gap of about 3mm between backplate and case along the top, but it does not seem to want to open any more, and I don't want to force it unduly.

Any advice would be much appreciated.[/QUOTE]

There are exploded diagrams and an owners manual on the Aquasignal website which mighet help see [url]http://glamox.com/gmo-recreational/products/Series-41/items/3542302000[/url]

but
Let's sort out your picture first
[img]http://www.asap-supplies.com/web_images/Products/Products/large/721405.jpg ...... There should be a small long screw in the front below the lens. (2 screws maybe if its an old one. One at the top as well)

 

[JumbleDuck]

Let's sort out your picture first

...... There should be a small long screw in the front below the lens. (2 screws maybe if its an old one. One at the top as well)

Many thanks, Vic. I couldn't see any screws anywhere on it, save the two mounting bolts. They had been trimmed up flush with the bolts, outside, and turn with the bolts so I can't even take it off.

 

[VicS]

can see it in this picture

 

[JumbleDuck]

Thanks, Vic - I shall look again when I'm next at the boat. I suspect the whole thing will need replaced, though, as the gap at the top doesn't look pretty.

 

[VicS]

Thanks, Vic - I shall look again when I'm next at the boat. I suspect the whole thing will need replaced, though, as the gap at the top doesn't look pretty.

It sounds as though the top has come unclipped... or however its secured ( my vintage S25's have screws top and bottom)
Provided its not broken, once you find the securing screw at the bottom and take it apart you may find it can be refitted properly, and if the lens is not crazed

Silly, very silly, money if you have to replace them. If so then now's the time to look at an LED light instead.

 

[Tranona]

The head of the long screw is very soft and the driver rounds it. I drilled mine out with a cobalt tip drill and used a piece of M3 studding with a locknut to make a new bolt. Total cost just over £3 and I still have the rest of the 500mm length of studding and surplus of nuts from the minimum 10 to do several more!

 

[JumbleDuck]

It sounds as though the top has come unclipped... or however its secured ( my vintage S25's have screws top and bottom)
Provided its not broken, once you find the securing screw at the bottom and take it apart you may find it can be refitted properly, and if the lens is not crazed

Silly, very silly, money if you have to replace them. If so then now's the time to look at an LED light instead.

My reason for opening it up is to take out the incandescent bulb and put in an LED one. It's not terribly urgent, though, as my boat was only built with pulpit bi-colour, masthead tri-colour and masthead steaming - no stern light, so the pulpit light is only any use under power when I have no shortage of electricity. Having discovered the gap, though, I'd rather like to know what it's like inside. I suspect "not pretty".

 

[JumbleDuck]

My reason for opening it up is to take out the incandescent bulb and put in an LED one. It's not terribly urgent, though, as my boat was only built with pulpit bi-colour, masthead tri-colour and masthead steaming - no stern light, so the pulpit light is only any use under power when I have no shortage of electricity. Having discovered the gap, though, I'd rather like to know what it's like inside. I suspect "not pretty".

Sorry, I forgot to report back. Screw found and undone, bulb changed. Both plastic latches had been broken off the inside of the cover, through, so it doesn't clip on at all at the top any more. It works fine, but I feel a replacement (ouch) coming on this winter.

Many thanks for the advice.

 

[CFarr]

I had the same model on mine but it broke in pieces when I removed it, due partly to previous repair and part too much force not realising there was a screw. It's not easy to see when you're kneeling on the anchor locker looking at the ground several metres below.
I replaced it with a Hellamarine model, about £14 I think and put an LED in it, both from Boatlamps.
I see you're at Port Bannatyne, so am I - mines the Sigma with numbers all over her hull that's been standing there since last September.

 

[Chris_Robb]

My reason for opening it up is to take out the incandescent bulb and put in an LED one. It's not terribly urgent, though, as my boat was only built with pulpit bi-colour, masthead tri-colour and masthead steaming - no stern light, so the pulpit light is only any use under power when I have no shortage of electricity. Having discovered the gap, though, I'd rather like to know what it's like inside. I suspect "not pretty".

I understood that an LED gave a very different type of light, and could not be used behind coloured lenses. Never tried it, so would be interested in your results.

 

[JumbleDuck]

I understood that an LED gave a very different type of light, and could not be used behind coloured lenses. Never tried it, so would be interested in your results.

Individual LEDs are pretty monochromatic, so unless you strike lucky and put a red LED behind a red lens of exactly the same colour, not much light gets through. I used a "warm white" bulb from boatlamps which gives a wide spectrum of output including enough to make a reasonable showing through red and green filters. Both the bow bicolour and the masthead tricolour now have them, and both are now much brighter than they were with filaments.

As a solution it is probably not as good as a dedicated LED lamp - have you seen how much Aquasignal charge? - but for second-best at a tenner it's pretty good.

 

[rogerthebodger]

I have also fitted warm white LED bulbs ( not from boatlamps through, mine were from China) in my bi colour, tri colour and stern nav lights and IMHO the red and green lights do seem OK and much brighter than the old incandescent. I have fitted a cold white in my steaming light and that one is considerable brighter. May consider changing warm white anchor light to a cold white version.

I replaced my NASA LED lights that kept on failing and cost too much for NASA to repair and upgrade.