Wiring question for a 2332 gg1

[johnjay2]

Hello

When trying to put my gg1 back together both headlamp wires came  undone and I noticed the that there is no longer a wire running from the motor to the horn.I see that I have a black wire coming off the contact on the side of the e-unit that came off im assuming the horn /lamp wires. I have the schematic but Im embarrassed that i really dont know how to read it. I was hoping that someone can explain in laymens terms how to attach the lamps and horn again. Any assistance would be appreciated.

Thanks 

John  

[lionelsoni]

The service manual shows a 9 3/4-inch black wire from each lamp socket to the pickup and a 5-inch black wire from one end of the whistle-relay coil and one end of the vibrator coil, also to the pickup.  The other end of the relay coil is connected to the locomotive frame.  The other end of the vibrator coil is connected to the fixed contact of the relay.

[johnjay2]

Bob

Stupid question... where is the pickup located. Sorry for my ignorance..

[lionelsoni]

The pickup is the assembly under the motor truck with the two arms and rollers that roll on the center rail.  The mechanical drawing shows one (3 1/2-inch red?) wire coming up through the truck from a terminal connected to the pickup.  That wire appears to go to a terminal on the e-unit coil.  Although the wiring diagram shows the three wires I mentioned before connected directly to the pickup, I would bet that the wiring diagram is wrong and that they should connect instead to the same terminal on the e-unit coil as the (red?) wire, since there is probably no room for them on the pickup terminal.  It will work fine either way.

[kpolak]

I agree with Bob.  I have not seen the inside of a GG1 with origional wiring.  I recently did re-wire a 2332.  Connecting to the pick-up contact requires removal of the rollers, and the motor.

There are a lot of wires comming out of the e-unit, and attaching to the pick-up wire located under the motor makes for routing that is difficult at best.

I installed the lamp wires to the brush contacts.  One brush receives full voltage and the other receives about half when the engine is moving.  This gives you full light at the front moving forward, and a half voltage light at the rear.  This changes based on the direction the engine is travelling.

You need to determine which brush is powered when the engine moves forward, or reverse.  Easy to do with a voltage meter.

Kurt

[lionelsoni]

Kurt, that's an excellent suggestion.  I don't know why I didn't think to mention that, since I have often touted that simple directional-lighting trick in the past.  All my locomotives' incandescent headlights are (re)wired that way.  It's actually better than it might seem, since the light that an incandescent lamp puts out drops very dramatically (as the -3.5 power!) with voltage.  The lamp with the lower voltage actually just barely glows and is, for all practical purposes, off.

[johnjay2]

Gentleman

Thanks to you guys my train has now been re-wired and it runs great.  I can honestly say you guys are a great asset to this forum!!!!!!!!!!!!!

Thanks Again!

John