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Ok so my first one to convert...
just want to see if im thinking this correctly.

* cut the red wire coming up from wheels which is closest to us in pic....and attach it to red on decoder
* attach orange on decoder to other side of red
* cut red furthest away and attach to black
* attach other side to grey

for light its white to white on one side and blue to white on other...

so on back of train ( far left) there seems to be a brass pad and id think that would be power?
so instructions say blue (+) common so go to that wire?
Then wire up on far right is white...to white?
wherever it goes, wheels?, will just be empty?


hope that isnt too confusing...

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The blue wire is common, the + leds will share this.

White wire will attach to the - wire of the the front led

Yellow wire will attach to the - wire of the rear lite.

If you use Evans designs leds, you don’t have to worry about the - and + leads . They are interchangeable
 

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The wires from the motor go to the orange and grey. Make sure the motor is isolated from the frame. You could check by checking for continuity. The wires from the left/right side trucks go to the red and black wires of the decoder
 

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In real simple terms, dcc wiring only requires 4 wires to get a engine running. The orange/grey to the motor, and the red/grey to the trucks.

The lights work white (forward), yellow(rear), and the blue is common. I’ve done a couple of installs on the dcc forum, with photos, check them out, (Athearn F7, and Bachmann spectrum loco.

Good luck and cheers.
 

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Make sure you have wires coming from the right and left side of the truck. The front truck photo looks like theirs only one wire coming from it. My concern is that the chassis is grounded, and therefore likely chance that the motor is grounded to the chassis.....and that’s going to require a little bit of work....
 

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If the chassis is grounded, you can pick up the left side power from the truck anywhere in the chassis, but the motor needs to be isolated. It can not touch the chassis. Using a bulb continuity tester will determine if a probe is on the motor and chassis and lights up. Check various points on the motor to the chassis....
 
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