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Help with part #

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Help with part #
Posted by silentman on Sunday, March 17, 2013 8:34 PM

I'm looking for a diagram and parts list  for a Lionel GP-7, 6-18826. Any help would be greatly appreciated.

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Posted by ADCX Rob on Sunday, March 17, 2013 8:57 PM

Always check the Lionel Website first.

Rob

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Posted by silentman on Sunday, March 17, 2013 10:06 PM
I did and all I came up with was the "instruction" sheet that probably comes with it. Looks like im in need of a gear. Haven't received the engine yet, just trying to get out ahead of it.
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Posted by ADCX Rob on Sunday, March 17, 2013 10:37 PM

Click on "Lionel Website" here or above for the diagrams you are looking for.

Rob

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Posted by silentman on Sunday, March 17, 2013 11:13 PM

I hope I don't need the whole truck assembly?

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Posted by ADCX Rob on Monday, March 18, 2013 5:39 AM

It depends - what is the biggest problem?  I see two obvious issues.

Rob

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Posted by silentman on Monday, March 18, 2013 6:07 AM
Like I said haven't received it yet, just trying to get out in front of it. Looks like its missing a gear and the roller needs fixed. Guy said it doesn't run in reverse.
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Posted by rtraincollector on Monday, March 18, 2013 9:21 AM

contack Jeff Kane and send him that pic he may have a better sugestion but to me you need two gears and may be easier just to replace motor truck as it looks like the one gear is bent out and that would tell me the little post holding it is bent and I believe to replace that gear you need a wheel puller. I may be wrong but thats why I sugest you email jeff jeff@ttender.com

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Posted by rtraincollector on Monday, March 18, 2013 9:41 AM

Relooking at it if I rememebr right there isn't a gear on that middle post as if you look the bras gear is turning the twoo other gears. I believe that middle post is fron another application some time back what you need is a diagram of the truck.
I tried to find one but no luck (I'm not the greatest at that)

Life's hard, even harder if your stupid  John Wayne

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Posted by ADCX Rob on Monday, March 18, 2013 11:42 AM

Once the cluster gear(8040-118) and pal nut(8960-52) have been installed, the gears should be fine. 

The roller is a non-issue.  Press the pin into position, or change the entire roller assembly(8209-165).

Rob

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Posted by silentman on Monday, March 18, 2013 1:00 PM

Thank you sir. One more thing Rob. Where the heck did you find that diagram?

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Posted by silentman on Thursday, March 21, 2013 5:41 PM
What is the trick to removing the roller assembly from the truck?
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Posted by ADCX Rob on Friday, March 22, 2013 9:04 AM

silentman
Thank you sir. One more thing Rob. Where the heck did you find that diagram?

Lionel website, service supplement 15, page 104.

silentman
What is the trick to removing the roller assembly from the truck?

While holding the roller bracket firmly in place(with pliers), press down on the bronze strap("Roller Contact") spring with a small flat screwdriver starting from the middle of the truck, sliding down under the plastic toward the roller.  When you have depressed to spring far enough, the roller bracket will slide out and away from the truck.  No tools are required to replace it, just slide the bracket back in until it snaps into the spring.

Rob

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Posted by silentman on Friday, March 22, 2013 11:01 AM

Again Thank you! Now that I have the loco, looks like I have a pretty nice list of stuff. The unit only goes in forward and only one motor works. Guessing a new E-unit board and motor in addition to the little things is in order? Hope replacing the circuit board isn't going to make me want to tear my lungs out. Looking forward to the project.

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Posted by ADCX Rob on Friday, March 22, 2013 11:10 AM

The board may be OK - many times the problem is in the wiring to the e-unit lockout switch or the switch itself.

Rob

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Posted by silentman on Friday, March 22, 2013 11:18 AM

Any way to test or just start with replacing the switch first?

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Posted by silentman on Sunday, March 24, 2013 9:20 PM
Still waiting on parts but I decided to dive in a bit. The one motor in the truck did not work so I pulled it out and unhooked it. I than tested the motor with a dc transformer and the motor works. Am I still looking at the circuit board or switch problem or possible loose wire somewhere? Any thoughts?
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Posted by ADCX Rob on Sunday, March 24, 2013 9:46 PM

Does the working motor run Fwd-Neu-Rev as designed?

Rob

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Posted by silentman on Sunday, March 24, 2013 9:57 PM
Wasn't working at all until I unhooked it and powered it to a dc transformer by itself.
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Posted by silentman on Sunday, March 24, 2013 10:40 PM

Im sorry,  just caught that. Working motor only ran forward. Sorry about that.

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Posted by ADCX Rob on Monday, March 25, 2013 12:04 AM

Your reverse unit should look like this:

Rob

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Posted by silentman on Monday, March 25, 2013 7:50 AM

Yep that's the one. I ordered a new one and a new switch. Didn't make sense why the one motor didn't  

work but when I pulled it out and tested it, was okay.

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Posted by TrainLarry on Monday, March 25, 2013 5:22 PM

  If one motor runs, they both should, unless the wiring is bad between the 2 motors. Disconnect the wiring to the good motor, and hook the wires to the non-operating motor to it. This will isolate the wiring. To check the reverse switch, unsolder the wiring to the switch and just twist the wire ends together, The board and motor should sequence when power is applied and interrupted. If it does, the switch is bad; if it does not sequence, the board is bad.

Larry

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Posted by silentman on Monday, March 25, 2013 5:36 PM
Awesome info, thanks alot. Rob, thanks for all your help so far, greatly appreciate it.
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Posted by silentman on Monday, March 25, 2013 6:03 PM
As far as the switch test, it just keeps running in one direction...forward. So your saying that would be the board?
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Posted by TrainLarry on Monday, March 25, 2013 6:59 PM

If sequencing the power with the wires together causes the motor to run in one direction only, chances are the board is bad. There may be an outside chance that the wires to the switch may be bad. Check the solder connections for the wires on the board itself, then get a short wire and jump the solder terminals on the board to see if the board sequences. If it still does not, then the board is bad.

Larry

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Posted by silentman on Monday, March 25, 2013 7:12 PM

I apologize but jumping the wires on the board? Does that mean to take the piece of wire and touch them to the solder connection on the back of board or "squeeze" them in where they are  inserted on the front? The more I learn the better. Big Smile

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Posted by TrainLarry on Monday, March 25, 2013 9:14 PM

No apologies here...ask as much as you need.

As you said...

"Take the piece of wire and touch them to the solder connection(s) on the back of (the) board."

Larry

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Posted by silentman on Monday, March 25, 2013 9:21 PM

Thanks again Larry. It must be the board. Parts are on the way, hopefully tomorrow!

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Posted by silentman on Tuesday, March 26, 2013 6:30 PM
SUCCESS!!! Rob and Larry, thank you so much!

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