I had some time today to pick at the huge locomotive collection needing deep inspection.
I figured I look at Santa Fe locomotives that had a chance of running on my layout instead of just looking at other lines I was gifted just because I had a interest and they didn't want to toss them in the trash.
So the first one was at F7 Mantura/Tyco that did run but had a burn't out bulb and was sluggish.
These old units are hearty if the motor brushes don't wear out. The motor is in the rear truck and the gearing is all sealed. No way to replace anything without drilling out rivits. The front truck is just picking up power. The thing doesn't even have a frame or flywheels. So I sprayed it down with silcone lube and blew it out with compressed air. I then used contact cleaner on the areas near the motor brush springs.
While I had the trucks out of the shell I installed a LED with 1000meg resistor in place of the incandant bulb.
It was fiddly to get it all back together also, this gal needed her cheaters.
While I had it open I installed a engineer peering out the side window, just for the heck of it.
I added Kadee couplers to the modified coupler boxes....
I put the F7 on the test track and she crawls very nicely, I was very happy she even runs!
https://flic.kr/p/2npbdJN
Next up was another Santa Fe loco #3233, this one is more modern Lifelike Proto 2000...but has lurching issues.
I ran it on DC power to test it.
So first off I was shocked to see a DCC board in this and it ran on DC power...my other DCC Loco would not run on DC power without a DCC command...how did this run on DC? Some DCC boards allow DC control? Very confusing?
But it does run on DC control WITH a DCC decoder connected to it!
First off was to modernize the lighting with LED but they do not work with a DC input so the decoder does control them.
I will have to retest them later when I start testing all my DCC locomotives.
So I did what I did with the last loco and sprayed it with silcone lube to loosen any gelled lube and then blew it out with compressed air. I then used contact cleaner on the areas near the motor brush springs.
Unit still lurched and hesitated...so I removed all the trucks and inspected all the gears.
AH HA! A broken gear! Without any replacement parts, what's a girl to do?
I suppose I will see if I can buy gears for Proto 2000 locomotives if I can find a part number on line. In the meantime, why not just fix the gear!?!? So I glued it and clamped it for a spell...I doubt it will stay fixed for very long so I marked the truck with a red dot. I also replaced the taped feeder wires to the decoder power input with new wires.
I got the chassis back together and was VERY Happy that this locomotive was so much easier to work on, take apart and lube, inspect, and fix than that old Mantura/Tyco junk. I have to put the body and couplers back on the chassis yet and test the DCC decoder to see if it still works, so I stopped as I had to make dinner. Tommarrow is another day.
I am no guru on fixing train stuff but I know how to watch videos and tinker with things. 2 down and 20 more Locomotives to go....
A Work in Progress!....Stay tuned!...