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 Posted - February 23 2007 : 11:08:42 PM
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Hey could some one give a step by step on how to break down a tyco diesel (Say ALCO 630) for maintenance...I know that there must be some tricks and things to avoid...Thanks...IAMFISH.
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Posted - February 25 2007 : 10:43:11 PM
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This is basically what I do to work on a PT.
There are various photos on this site that may assist you in removing the power truck from your Power Torque 630. The sideframes come of with 3 screws just like the PT powered 430 Alcos etc.. This will allow the axles to come out. You can leave the sideframes on but sometimes it makes twisting the coupler out of the pilot a little tough.
The power truck and bogey, for lack of a better name it allows the truck to pivot, can be gently pried out of it's slot(s) with a small screwdriver. There are 2 slots on each side of the cab above the front and rear of the sideframe. Sometimes the pegs that go in the slots can break with too much force. The bogey or black delrin frame that is around the top of the truck can be pried gently away from the motor. One side of the PT has the wires attached and a large cover is held in place by 2 diagonal screws. If you take them out at this point the brushes and springs will pop out and you may loose something.
There are 2 brass looking plates, on the armature cover, that hold the spring and the brushes. One has a screw that must be removed. These plates have a tiny hole with a little black pin that holds them in place. If you lift up on the outer end of the brass plate it will clear the pin and allow you to slide the plate to remove the brush and the spring. The spring is very fragile, and can be crushed very easily. Repeat this with the other plate. Once youv'e stored the brushes and springs, say in a film container, you can take off the large plastic armature cover. I find it easier to lift and slide these brass plates to put the brushes back than to put them back by putting them in the large cover plate and make that fit. On reassembly put the side cover on over the armature with one screw, install one brush and spring. Gently hold down the spring and slide the brass plate over the spring and over the little black pin. Now You can clean the armature, brushes, add oil, or pull out any fuzz that may be there.
Alco Fan
Edited by - Alco Fan on February 25 2007 11:15:38 PM
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Posted - March 01 2007 : 7:48:29 PM
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I think the brush springs in the PT's, Power Torques, get weak and don't provide good pressure on the brushes and and causes poor performance from that motor. Putting fresh springs in your PT's, along with cleaning and oiling, might greatly improve the performance. [^]
Alco Fan
Edited by - Alco Fan on March 01 2007 7:50:11 PM
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Posted - March 02 2007 : 8:18:25 PM
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| ALCO - Now that's what I call breakin' it down !! I am aquiring the "tools" needed along the way...And with the help of this forum's knowledgeable members I have managed to revive several old engines too include SD-24 and ALCO S630...Both of which run smooth as silk NOW...Thanks...IAMFISH.
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Posted - March 07 2007 : 6:33:45 PM
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I had some bad luck with one of my Virginian C430s and when I got it apart I realized I had forgotton the the brushes set in an opening that with a little, brass?, bezel. One fell out and as I was replacing it with a spare I found the original. I don't know if it would run without it. [?]
Alco Fan
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Posted - March 07 2007 : 6:46:20 PM
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| Where can I get replacement springs? I never thought much about the effect they may have; I just figured the armature was weak overall. I have removed these before and they are indeed fragile. Can you use any spring that fits in the hole?
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Posted - March 08 2007 : 09:55:19 AM
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GIC,
I think you can use any spring. All the spring does is transfer current to the brush and push the brush into the commutator. As long as the spring does both, it should work. So the spring must be metal. (It also needs to fit in the hole.) Have you tried Athearn springs? Horizon sells them in packs for about $12 i think. Possibly 10 springs per pack. They may need to be cut a bit shorter.
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jsiggy
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Posted - October 01 2007 : 10:24:21 AM
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I have a PT that I've just disassembled thanks to this site. It came out of a 25 year retirement to entertain my son.
Lubed it, it ran well. Then started to have problems. It looks to be in decent shape.
Now that I have it pieced out, what should I use to clean/refurbish it? Any solvent recommendations? Eraser for the brushes?
Any help is appreciated.
J
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Posted - October 01 2007 : 12:19:45 PM
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I wash all parts except the armature in hot soapy water. (dish soap)
I wipe any oil off the armature and commutator then clean the commutator with an eraser.
Rubbing the brushes on a piece of Masonite (or wood) will clean them.
What sort of problems did you start having with it?
If it started smoking, check for burnt spots on the commutator and weak brush springs.
Ray
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jsiggy
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Posted - October 01 2007 : 3:16:11 PM
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It was smoking and running unevenly. I thought it was due to a sloppy oiling job on my part.
It was pretty Carbon caked on the innards. Cleaned it up and just finished the 20min break in test.
Now to just get those traction bands to put the power on the track.
Thx
J
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