Lionel 1688 wiring

[Postwar Paul]

That diagram is correct. I repaired my 1688. One brush goes to frame ground, instead of the field coil going to frame ground, as in most engines.

[trains2353]

Thanks Larry; will try that.

[TrainLarry]

Do not concern yourself with the wire coloring, as it will not match the schematic.

Identify the 2 Field winding connections and the 1 (left) Brush connection. The right Brush connection is grounded.

Follow the wiring on this schematic provided by Swede above and you should get the motor to run.

Larry

 

[trains2353]

After all morning, I have the e-unit working. I got the motor to hummm, but not move. Saw a little smoke from it, so stopped what I was doing. Tried to find a pic online of the motor; none clear enough to see where the wiring went. Perhaps look online for a good running chassis as the body for this one is very nice. Or send it out for repairs.

[trains2353]

Thanks guys! I'll be looking at the diagrams today. Wiring is nasty, but going to try and use it. Some wiring color is left, but not much.

[TrainLarry]

The different schematics have either the field or brush windings reversed by the E-unit. It does not matter what set of connections is reversed, as the results are the same.

Any motor can be wired either way with the same results.

 

Larry

[rrswede]

Although Larry's statement is true, that being his schematic is the same for most engines, I am not sure it is true for this locomotive. Please look at the Olsen's Toy Train link.

http://pictures.olsenstoy.com//cd/b123/000546.pdf

swede

[Firelock76]

You may want to consider replacing those wires, they look nasty!

[TrainLarry]

Here is the wiring diagram for the 'E'-unit. It is the same for most engines.

Larry

[trains2353]

Acquired a very nice Lionel 1688(not an E). Headlight lites up, but no movement or e-unit noise. Removed the body; found 2 wire not connected. How can I find out were they need to go? I put some pics in if that helps. I understand there are 3 different motors in the 1688. I believe I have the 3 type. It connects to the body with 2 long screws.

Any help greatly appreciated.

http://pic80.picturetrail.com/VOL1001/4368153/24788991/413621749.jpg

http://pic80.picturetrail.com/VOL1001/4368153/24788991/413621750.jpg

http://pic80.picturetrail.com/VOL1001/4368153/24788991/413621751.jpg

http://pic80.picturetrail.com/VOL1001/4368153/24788991/413621752.jpg