Rewiring a PW Scout to run without an E-unit

[RRaddict]

Problem solved thanks everyone for your help.  I was able to easily wire it up for forward only.

[lionelsoni]

I'm nut sure what you mean by "all three wires".  There should be three terminals on the e-unit.  Two of these should have the field wires connected to them.  The third terminal should be connected to the pickup; and that's the terminal that you should disconnect.  But, if there is more than one wire connected to that terminal, you need to keep all of those wires connected to the pickup.  All I can think of that might be connected there are one of the brushes and the headlight, if any.  These might be wired to that e-unit terminal as a place to connect them that is more convenient than a direct connection to the pickup.  So, if there is more than one wire there, remove them all from the terminal, but connect them together (and insulate the connection).

[RRaddict]

Thanks I will just disconnect the roller from the e-unit, do I still need to leave all three wires connected together after disconnecting from the e-unit?

Thanks,

Kevin

[lionelsoni]

On the schematic diagram, you can see that the pickup is wired to one motor brush and that the other motor brush is wired to the midpoint of the field coil.  The e-unit connects one end or the other of the field coil to the frame.  So, if you are adamant about removing the e-unit, do so and just connect whichever (not both) of the field-coil ends that were connected to the e-unit, to the frame.  (Be sure to insulate the other, unconnected field-coil wire.)

But notice that you could simply disconnect the e-unit coil from the pickup to stop it from cycling, and get the same result with a lot less trouble.

(If you are interested in slower operation, disconnect the midpoint of the field coil from the brush and insulate that wire.  Then connect one end of the field coil to the brush from which you removed the midpoint wire, and connect the other end of the field coil to the frame.  If the motor runs the wrong way, swap those two field-coil ends.)

[RRaddict]

Sorry here is the link http://pictures.olsenstoy.com/248.htm

[RRaddict]

Here is the Scout that I have but I am still unclear as how to get this thing wired to run.

Thanks,

Kevin

[lionelsoni]

Just wire the armature in series with half the field winding, or the entire field winding if you would like the locomotive to run a little slower.

Why do you particularly want to get rid of the e-unit if you can simply stop it from stepping?

You can probably look the locomotive up on the Olsen's site; but we can't do it for you unless you tell us the model number.  http://pictures.olsenstoy.com/searchcd1.htm

[RRaddict]

This is definitely a metal moto, do you know where I an find a wiring diagram for rewiring for forward only?

[lionelsoni]

If you're saying that your "Scout" is not a Scout after all, then just disconnect the e-unit coil while the e-unit is in the forward position.

[RRaddict]

I have the two position e-unit and the motor is all metal with no plastic at all except for the bottom piece that holds the pick ups. I don't mind taking the E-unit out and runnning it forward only if that is possible.

Thanks,

Kevin

[cwburfle]

It's common for folks to call any postwar Lionel 2-4-2 steam locomotive a Scout. Some models are not Scouts and do have either 2 or 3 position e-units. Which locomotive do you have?

[lionelsoni]

The Scout e-unit is integral to the motor.  So the best you can do is to lock it into the forward state with the lever on the top of the locomotive.  Or, if that is defective, you could remove the pawl that rotates the brush holders.

[RRaddict]

Hello,

 Does anyone know the way to wire the PW Scout to run forward only without an E-unit. I have looked everywhere and can't find a solution. I would appreciate any help.

Thanks,

Kevin