# 3361 LUMBER CAR

Normally they only operate when the unload button is pressed. If yours is working with either button, then either your car has been rewired differently than it was at the factory, or your uncoupling track is wired differently than it was at the factory.

There is no way you could rewire this car & make it work with the uncouple button. I tried two ACC. tracks & they both work the same way. And whats strange there is no voltage being applied to the rails that would work the car when you push the uncouple button.

help Monk

quote:

There is no way you could rewire this car & make it work with the uncouple button.

All you have to do is ground one of the solenoid wires.

That clears it up.

Clears it up for who?

A better way to approach this would be scientifically.

For example, this:

is not quite true. Get out your VOM and check, and observe that there is voltage at both/all control rails when the uncouple button is pressed.

Then again with your meter, check that there is no fault to ground. This can happen with older equipment, and this car has solder tabs that can be bent out of shape, or a wire could be cracked or frayed and making contact with the chassis.

Now study the wiring / pictorial diagram to be sure all wiring and insulation/insulators are intact:

Also, be aware that if you push slowly on the uncouple button, that part way down sometimes will provide a circuit through the uncoupler magnet causing the unload mechanism to trigger.