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Bill
#1 Posted : Saturday, May 14, 2011 6:09:26 PM(UTC)
Bill

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BigM I have often wondered why the bildge blowers can not be turned off from the bridge when it is turned on at the lower station and vice versa? Has anyone came up with a three way circuit that they would like to share with us old folks who are getting tired of climbing up and down the flybridge ladder when they forget to shut of the blower at the helm they are not using? Jeff need not answer, just kidding, if you have a solution please post itPray
Bill
"ALUMINATION"
1975 Marinette 37' Fly Bridge Sedan
Twin Chrysler 360 cu in - 250 hp
Grosse MI - FYC
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Docsnow
#2 Posted : Sunday, May 15, 2011 2:56:50 AM(UTC)
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Getting old on us U old pirate Think R U now.U no I’ve often wondered that myself Anxious I found a partial solution to that especially if the 1st mates aboard a “U dumb $hit grumble” as she climbs the ladder is easier than I doing it, than a reply from me saying look at that figure on U always brings a smile to her face. Whistle Well back to the main subject maybe one of the sparky’s have a idea or fix for this revoking development Brick wall other than the 1 above but it does work Dancing

Norm

Big BigMs Live On Dancing


SO DOES A OLD arrrr LIKE BILL Whistle
http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

http://www.PictureTrail..../index.php?clubID=20726 this one for the Pix club


 You'll have bad times, but they'll just wake you up to the good times you weren't paying attention to

Some people try to turn back their odometers.Not me, I want people to know "why" I look this way.I've traveled a long way and some of the roads weren't paved.
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Bill on 5/16/2011(UTC)
Jack Marchand
#3 Posted : Sunday, May 15, 2011 10:58:58 AM(UTC)
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Bill, you will need what is called a three way switch. This is kinda confusing nomonclatur but in affect what is does is sends the power (from lets say the FB helm) to either of two lines. then you would use another three way switch to accept either signal in to send the power out to the blower, the same function as your home three ways at separate entrances to a room, stairway or hallway. One drawback tho is up is no longer on as the other helm will affect the switch at the other location. I know this is a bit confusing and I will talk direct to clarify if you wish. Send me your number on a personal message so we can talk. Jack
75 FB express, "Big Enough II" twin 318s, 950hrs, raw water cooling, 1 to 1 transmisions, Beautiful Lake Charlevoix, MI
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Bill on 5/16/2011(UTC)
GB49
#4 Posted : Sunday, May 15, 2011 3:31:42 PM(UTC)
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I've been bugged by the same problem. Blower and ignition are the biggest problems.
I think the best solution, but not the easiest, is a digital system. Perhaps a micro processor controlled series of inputs and outputs or just digital switches at both helms and a controller for each device you wish to control.
This would eliminate toggles completely. Could use push buttons (breaker style) with little LEDs to indicate if a device was on or off.

-karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
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dougrose
#5 Posted : Sunday, May 15, 2011 3:42:59 PM(UTC)
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You need a pair of double-throw switches but unless you can hear the blowers from both locations you will need a light to tell you when the blowers are on. A double-throw switch has a common terminal and two switched output terminals. When the switch is in one position, the common connects to one output, when it is in the other position, the common connects to the other output.

Put power to the common of one of the switches. Connect the output terminals of the two switches with two wires. Connect the common of the other switch to the blower motor. This requires at least one additional wire to the circuit, so is not straightforward.

You cannot do it with circuit breakers since they do not come in double-throw. Many Marinettes use circuit breakers as switches, so you may need to add both switches and get power from the breaker.

Additional hint: wire the two switches so that when both are down, the blower is off (cross the wires). This way if someone is shutting everything down (switches down) at both stations, they will leave the blower off. I'll post a schematic later today.


1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida
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Bill on 5/16/2011(UTC), Bill_2 on 12/4/2011(UTC)
dougrose
#6 Posted : Monday, May 16, 2011 8:11:39 PM(UTC)
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This circuit provides two switches to control the blower(s). When both are down, the blowers are off. If either switch is up, the blowers are on. If both switches are up, the blowers are off. You will need a pair of single-pole double-throw toggles, and wire them as shown. Wires will need to be added. Note that power should come from the "blowers" breaker in the accessory (eyebrow) panel, then run up to the upper station, back to the lower station, down to the blower, and then back up to the ground bus in the accessory panel.

You might want to replace the accessory panel "blower" breaker with the toggle, then install a pushbutton-style breaker close by. Or, you can replace the breaker with the switch, and pull power from some other breaker that you know will be on.


Two Switches One Blower




1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida
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Bill_2
#7 Posted : Sunday, December 04, 2011 6:49:43 PM(UTC)
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Doug,
Thanks for the wiring diagram and the detailed note about hooking up three way switches. I installed them this fall and they are working great. I also installed lights on the panels that tell me when the blowers are running. Awesome. Thanks again..
Bill [aka bill_2]
Bev and Bill Clayton
ALUMINATION
1975
37' Marinette Fly Bridge Sedan
Twin 340 Chrysler 250 hp
Grosse Ile, MI
Lake Erie
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Jack Marchand
#8 Posted : Tuesday, December 06, 2011 3:41:58 PM(UTC)
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Doug two things, what kind of software are you using to create your prints? And 2, the only improvement on your print that I can see is that you paralell the indicator lights (2) with the blower, one for the upper and the other for the lower helm. Nice job! Jack.
75 FB express, "Big Enough II" twin 318s, 950hrs, raw water cooling, 1 to 1 transmisions, Beautiful Lake Charlevoix, MI
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dougrose_2
#9 Posted : Tuesday, December 13, 2011 12:08:14 PM(UTC)
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Jack,

I use the free Ubuntu operating system (you listening, Jeff?) and with it LibreOffice, the open-source office software. The illustration was made using LibreOffice Draw, one of the modules. It is faster than an actual CAD program, and is pretty easy.

Adding the indicator lights will require at least one more wire "up the tube" to the flybridge, but is probably a good idea.

Some years ago I was asked to set up the start circuit so that the engine would not start unless the blowers were on. This was to prevent charterers from blowing themselves up. I have the schematic somewhere if anyone would like to add this "reminder" feature.

'75 Marinette 32' Sedan
Twin Perkins 6354 diesels, 120 hp each
Merritt Island, Florida
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Bill_2 on 12/13/2011(UTC)
Ed
#10 Posted : Wednesday, December 14, 2011 11:15:55 PM(UTC)
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Originally Posted by: dougrose_2 Go to Quoted Post
Jack,


Some years ago I was asked to set up the start circuit so that the engine would not start unless the blowers were on. This was to prevent charterers from blowing themselves up. I have the schematic somewhere if anyone would like to add this "reminder" feature.




Simple way is to see if the blower switch is a 2 pole switch already, if not put in a 2 pole and switch the start (not the run ) circuit with the other pole. For one blower and two engines you will need a 3 pole switch. Turn it on and it will run the blower and allow you to start either engine. --Ed
BUSIA
32 foot, no flybridge, twin 350 (chevy) Crusaders, closed (freshwater) cooling, 1:1 Velvet drive transmissions.
Proud to be IBEW.
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fastjeff_2
#11 Posted : Thursday, December 15, 2011 6:30:29 AM(UTC)
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Boy, what restraint I have!

Jeff
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Bill_2 on 12/15/2011(UTC)
BCassedy_2
#13 Posted : Thursday, December 15, 2011 8:24:52 AM(UTC)
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Yes, Jeff.....
... and Santa is still watchin'... Whistle

Bill
Bill Cassedy
Sunset Seeker
32' SB
318 Cu In Chryslers
1.5 Velvet Drive trannies
Freshwater always
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Bill_2
#12 Posted : Thursday, December 15, 2011 9:12:21 AM(UTC)
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Jeff
Shame on you andShhh andSilenced
Bill [aka bill_2]
Bev and Bill Clayton
ALUMINATION
1975
37' Marinette Fly Bridge Sedan
Twin 340 Chrysler 250 hp
Grosse Ile, MI
Lake Erie
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Jack Marchand_2
#14 Posted : Monday, December 19, 2011 3:55:19 PM(UTC)
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Doug, sorry it took so long to repond but thank for the software info...Jack
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