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Old 02-09-2017, 05:50 PM   #1
risk08
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Exclamation Wheels keep jamming (PCC Trolley, Bachmann, N Scale)

My n scale PCC Trolley from Bachmann is having some problems running. In the back truck mainly the gearing keeps jamming/locking due to the gears getting in some kind of angle.

I have some links to some pictures. There are 3 gears in each truck. 1 large main one with 2 for each set of wheels. I can rotate the main one with my finger and it jams at a random point.

Any help and advice would be greatly appreciated.

Here is a dropbox folder of the pics. Sorry they are a bit blurry.
https://www.dropbox.com/sh/z48jrkaor...nrTkX1Ima?dl=0
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Old 02-09-2017, 06:19 PM   #2
brian1951
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Very difficult to say from your pictures, has a gear picked up something from the track ie a track pin or has a tooth on any of the gears been damaged ?
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Old 02-09-2017, 06:26 PM   #3
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I took apart the gears are they looked fine to me. I also made sure there wasn't anything caught. I get the feeling that the middle gear is getting stuck at a slight angle causing all of them to get stuck but I'm not sure.
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Old 08-09-2017, 03:57 PM   #4
Byegad
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Sounds like a classic split gear to me. Disassemble and check each gear, one at least, will have a split inside to outside.
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Old 08-09-2017, 04:31 PM   #5
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OK thanks I will have a look.
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Old 19-09-2017, 03:27 PM   #6
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For those who find this and having the same issue with either a ppc trolley or brill trolley, I will share what the problem was and how I resolved it.

It seemed to be a split gear problem or of that nature. AKA no fixing it. The option I chose was to purchase some new trucks from Bachmann's US spare parts online shop and ship them to the UK where I am located. The trucks are cheap but shipping obviously pricey for me so I ended up spending 10. If you're in the US or nearer it will be super cheap.

Once I re-lubricated the whole tram and fitted the new trucks it runs like a beauty again. I would recommend Labelle 108. I also think it is initially over-lubricated possibly with grease so I would remove it and lubricate it lightly yourself anyway.

BTW if you have white gears instead of black, those are well-known to split so get those upgraded to black. The white ones are the old generation.
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