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P/U Roller removal

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P/U Roller removal
Posted by trainbrain on Thursday, April 12, 2007 3:01 PM

Is it this hard to do?  I removed the screw from my Railsounds GP9 p/u roller and it's still in pretty good.  Will prying do it or destroy it?  I need to solder the wire back and can't find the connection without getting the roller out.  I don't want to wreck it.

Thanks

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Posted by eZAK on Friday, April 13, 2007 10:59 AM

The actual roller it self is peened to the collector arm. You would need to grind off one end of the roller pin, drive it out, then replace pin and roller and peen over each roller pin end.

You could also replace the whole P/U assembly with a like unit. Some come with wires attached.

Relax, Don't Worry, Have a Home Brew!</font id="size2"> Pat Zak</font id="size3">
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Posted by trainbrain on Friday, April 13, 2007 11:51 AM

I guess my ? should pertain to the whole assembly, including the collector frame, arm, spring & roller.  I removed a screw thinking the whole assembly would drop out but nothing is loose.  I need to get to the point where the wire is so I can resolder it.  How do I get the whole assembly out without killing it?  Pry it with a screwdriver?  I  dunno.

Thanks

Only by the grace of God go I.
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Posted by kpolak on Friday, April 13, 2007 1:22 PM

Can you attach a photo?

PW roller units should separate from the truck with one screw.

Kurt

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Posted by eZAK on Saturday, April 14, 2007 7:48 AM

It will be mounted with a plastic insulator.

Gently pry the P/U away from the truck.

Relax, Don't Worry, Have a Home Brew!</font id="size2"> Pat Zak</font id="size3">
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Posted by trainbrain on Saturday, April 14, 2007 7:50 AM

Here is a picture of the motor pick up roller assembly. Note the hole is where I removed the screw but the assembly still remains tightly intact. How can I get ths out?

Thanks 

Only by the grace of God go I.
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Posted by kpolak on Saturday, April 14, 2007 6:39 PM

Sign - Ditto [#ditto]

Here's what mine looks like apart.  The black plastic collector insulation may be stuck to the truck, and collector causing it to stick.

Mine was melted a bit next to the wire lead, probably die to a previous oversize solder joint too close to the truck.

Kurt

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Posted by USNRol on Saturday, April 14, 2007 10:44 PM

 kpolak wrote:

Here's what mine looks like apart. 

Kurt

Kurt, looks like you have a different animal there.  Trainbrain there may be more to it than just the one screw; unfortunately I'm unfamiliar with your collector configuration.

Roland

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Posted by kpolak on Sunday, April 15, 2007 6:26 AM

Does this look like what you have??  Scroll down to page 1-3.

http://www.lionel.com/Products/ProductNavigator/_ServiceDocuments/4910_combo.pdf

Kurt

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Posted by trainbrain on Sunday, April 15, 2007 7:04 AM
Yes, that's it.
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Posted by bfskinner on Sunday, April 15, 2007 8:54 AM

trainbrain,

Is it possible that someone glued some of the parts together? Check for any excess CA glue or the like. In any event, a little careful wiggling and prying should pop it out, but if a capable adhesive was used, getting the assembly apart without destroying it may be difficult. Frankly, I think kpolak's idea of a little bit of melting of the plastic is more likely than glue.

Note, based on my experience with similar but not identical pickup assemblies: one critical element is the insulating washer (#600-2333-042) that goes under the head of the screw  as you can see from the exploded view. Without it, on some collectors at least, you get a direct short circuit from the middle rail to the "ground" side of the locomotive.

bf
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Posted by trainbrain on Sunday, April 15, 2007 9:08 AM

I was able to pry it out but I cracked the plastic frame around the piece a little, though not cracked all the way.  Is it still usable?  All I want to do is resolder the wire but there is a little stem that the wire goes into on the assembly thatv doesn't leave any room to solder.  Does a new piece come with a wire already attached??                                         Thanks- Brian

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Posted by kpolak on Monday, April 16, 2007 6:24 PM

I hoped that someone would have picked up on this.

You might try Lionel for more information.  Their Tech staff is not in until Wednesday.  You can reach them thru the customer service tab on the Lionel site.

I did check on the parts, and the roller pick-up ($3.10ea) and insulation ($.50ea) are available thru Lionel.

Kurt

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