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Posted - August 22 2020 : 3:16:35 PM
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So my new mantra Davenport switcher arrived in the mail yesterday and I ran it a little bit and I thought that it could use a bit of servicing. the motor was getting hot so I took it apart and cleaned out the old lubricant and replaced it and cleaned the commutator. but it has still gotten hot quickly whenever I have ran it since. It also has quite a strong ozone smell when I run it. what should I do?
Edited by - Erik The Train Nerd on August 22 2020 4:02:48 PM
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Posted - August 22 2020 : 4:00:56 PM
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Erik, can ya please use some commas and periods!
There might be some oil or something on the commutator. That would cause a smell. Make sure there is NO oil or lubricant on the commutator! Make sure everything rolls freely with no binds, as this can overwork the motor.
Pics?
Edited by - BlaxlandAlex3 on August 22 2020 4:01:36 PM
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Posted - August 22 2020 : 11:32:04 PM
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It could be the magnet is getting weak with age. Getting to be a common problem in my experience with older locomotives.
If it's an open frame motor, you could replace it.
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Posted - August 23 2020 : 08:32:40 AM
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I've got two mantuas I might remotor, they run sluggish. If you do this, let me know how it goes.
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Posted - August 23 2020 : 11:17:55 AM
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I probably won't be remotering as I want to keep it original because of its rarity. What I'm doing currently as I stop it every once in a while and give it a little break to cool down.
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Posted - August 23 2020 : 11:52:56 AM
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quote:I probably won't be remotering as I want to keep it original because of its rarity. What I'm doing currently as I stop it every once in a while and give it a little break to cool down.
Originally posted by Erik The Train Nerd - August 23 2020 : 11:17:55 AM
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I'm assuming it has an MU-2, right?
Sometimes you have to sacrifice rarity for true enjoyment. If it means giving up some of it's original history to make sure it runs well for a long time, I'd totally go for it. But it is up to you. I'd just hate to see it burn out or something.
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Posted - August 23 2020 : 12:29:13 PM
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I have some somewhat rare older Rivarossi locos that the motors were overheating on, one to the point where it would eventually stop after awhile.
It's nice to retain the original motors if you can, but if they don't run right or need extraordinary TLC, it makes them a headache to run and I generally will leave them on the display shelf.
I recently remotored them and they are a blast to run. So cool to see these old locos motoring around the layout with the performance of a newer one.
I can see the other side of the story though, it's your call if keeping everything original is important.
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Posted - August 23 2020 : 2:44:41 PM
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quote:I have some somewhat rare older Rivarossi locos that the motors were overheating on, one to the point where it would eventually stop after awhile.
It's nice to retain the original motors if you can, but if they don't run right or need extraordinary TLC, it makes them a headache to run and I generally will leave them on the display shelf.
I recently remotored them and they are a blast to run. So cool to see these old locos motoring around the layout with the performance of a newer one.
I can see the other side of the story though, it's your call if keeping everything original is important.
Originally posted by Crown Vic - August 23 2020 : 12:29:13 PM
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Right on!
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Posted - August 23 2020 : 3:09:39 PM
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quote:Erik, can ya please use some commas and periods!
There might be some oil or something on the commutator. That would cause a smell. Make sure there is NO oil or lubricant on the commutator! Make sure everything rolls freely with no binds, as this can overwork the motor.
Pics?
Originally posted by BlaxlandAlex3Â -Â August 22 2020Â :Â 4:00:56 PM
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I learned that the hard way. I put just a little bit too much lubricant on a Fleischmann 4-6-2 I got a while back, and due to the oil leaking into the commutator, the engine was quite literally smoking. Thankfully, I was able to fix the issue by completely disassembling the motor and cleaning any oil off of it before it caused any damage. It now runs beautifully, but it could’ve ended badly.
-Steve
"A lot of modellers out there who go to these train shows see broken HO stuff and go, 'This is useless' when, in reality, they can still be used for modeling whether it's as a prop on your layout or a cool project to make something old new again."
Edited by - kovacste000 on August 23 2020 3:09:57 PM
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Posted - August 23 2020 : 3:33:18 PM
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close save!
Erik let's see this switcher!!!
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Posted - August 23 2020 : 6:44:21 PM
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Replacing the magnet is best; but if don't want to disassemble the motor unit and if you have enough clearance in the locomotive shell, a weak magnet can be enhanced by gluing a strong magnet next to it. Glue because add-on magnet polls need to be oriented the same as the factory magnet: north to north and south to south. (If the add-on magnet is backwards the motor may not run or even run backwards.) My old Mantua/TYCO metal Shatrks were running slow and hot so I glued some salvaged magnets to the motor units and they ran better. I have recently replaced some Shark magnets with 1/2 x 1/4 x 1/2 inch neodymium magnets rated over 9 lb. holding power. The motors run great but the magnets are too strong; the motor units swing on their pivot points grabbing a steel plate that connects the trucks to the body. I shoukd try 1/2 x 1/8 x 1/2 inch neodymium magnet rated at only 5 lb. holding power.
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Posted - August 23 2020 : 7:10:40 PM
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quote: quote:Erik, can ya please use some commas and periods!
There might be some oil or something on the commutator. That would cause a smell. Make sure there is NO oil or lubricant on the commutator! Make sure everything rolls freely with no binds, as this can overwork the motor.
Pics?
Originally posted by BlaxlandAlex3Â -Â August 22 2020Â :Â 4:00:56 PM
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I learned that the hard way. I put just a little bit too much lubricant on a Fleischmann 4-6-2 I got a while back, and due to the oil leaking into the commutator, the engine was quite literally smoking. Thankfully, I was able to fix the issue by completely disassembling the motor and cleaning any oil off of it before it caused any damage. It now runs beautifully, but it could’ve ended badly.
Originally posted by kovacste000Â -Â August 23 2020Â :Â 3:09:39 PM
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I have cleaned the commutator a ton so I don't think it's that it's probably weak magnets thank you everybody for the information.
Edited by - Erik The Train Nerd on August 23 2020 7:11:41 PM
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Posted - August 23 2020 : 9:11:30 PM
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That magnet idea sounds good. I might try that.
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