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Author Topic: Setra 50DN Alternator wiring  (Read 1366 times)
wayne
1990 Setra 215 HDH
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« on: August 01, 2009, 05:33:52 PM »

I am just finishing the wiring on my 1990 Setra. I got rid of the gear driven alternator on the back of the engine and installed a stand alone 50DN belt driven off the main pulley. Does anyone know where I can go online to find a diagram for this alternator. I know they have been around forever but I can't find anything real informative and I don't want to make a mistake.
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Zeroclearance
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« Reply #1 on: August 01, 2009, 09:03:30 PM »

http://www.delcoremy.com/Manuals.aspx

There is alot of good info from there site.    If you have a chance look at there new stator update.
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Sean
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'85 Neoplan Spaceliner "Odyssey"


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« Reply #2 on: August 01, 2009, 09:20:56 PM »

Wayne,

"50DN" refers to an entire family of alternators, not just a single model.  They came in 12-volt or 24-volt, belt-drive or gear-drive, single- or dual-field terminals; the list goes on.

In order to know how to wire your specific unit, you will need to find the actual part number for the model you have, which should be on a metal plate riveted to the unit.

Also, if you already have the regulator, let us know what that part number is too.  If you don't have one yet, be advised that the 50DN is an externally regulated series of alternators, and you will need the proper regulator to make your alternator work.  Some of these regulate the positive side of the field, and some regulate the negative side.

-Sean
http://OurOdyssey.BlogSpot.com
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Full-timing in a 1985 Neoplan Spaceliner since 2004.
Our blog: http://OurOdyssey.BlogSpot.com
wayne
1990 Setra 215 HDH
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« Reply #3 on: August 02, 2009, 08:46:05 AM »

The alternator is 24V, belt driven. Part#10459123,  ID#774218. I was planning on using my original regulator which is also 24V, Delco, Model#1118437, Serial#90D05   6.  I am not sure what field the alternator is but it has 1 large terminal (4\O) and 3 smaller terminals on the back.
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wayne
1990 Setra 215 HDH
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« Reply #4 on: August 02, 2009, 09:22:49 AM »

Wayne,

"50DN" refers to an entire family of alternators, not just a single model.  They came in 12-volt or 24-volt, belt-drive or gear-drive, single- or dual-field terminals; the list goes on.

In order to know how to wire your specific unit, you will need to find the actual part number for the model you have, which should be on a metal plate riveted to the unit.

Also, if you already have the regulator, let us know what that part number is too.  If you don't have one yet, be advised that the 50DN is an externally regulated series of alternators, and you will need the proper regulator to make your alternator work.  Some of these regulate the positive side of the field, and some regulate the negative side.

-Sean
http://OurOdyssey.BlogSpot.com

Sean, your blog site is great, That is exactly what I was looking to do but ended up making a website to show the progression of my Setra conversion www.mybusgarage.com. It turned good but was a lot of work and a lot more costly than I planned on.
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Sean
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« Reply #5 on: August 02, 2009, 10:00:59 AM »

The regulator you have should work fine with the alternator listed.

Note that this is an "A-circuit" regulator, which means it regulates the ground side of the field.  Your alternator connections should thus be as follows:

Large (1/2") terminal, marked "+", "DC", or "BAT": Main output, to batteries.  Use 0000 (four-ought) with a properly swaged lug.
F1: Field positive, wire directly to main output with a jumper.
F2: Field negative, connects to "F" or "FLD" terminal on regulator.
R or Relay: Relay terminal, connects to 12-volt relay that operates blower circuits and "No Charge" light on dash.

The regulator should be wired as follows:
F or FLD: goes to F2 on alternator
I or IGN: goes to a 24-volt circuit switched by the master switch ("Ignition")
G or Gnd: ground
B or BAT: Sense lead, should be connected directly to battery positive at the battery (resist the temptation to connect it someplace else more convenient).

Hope that helps.

-Sean
http://OurOdyssey.BlogSpot.com
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Full-timing in a 1985 Neoplan Spaceliner since 2004.
Our blog: http://OurOdyssey.BlogSpot.com
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