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Old 06-13-2020, 04:00 PM   #1 (permalink)
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Hi Guys & Gals, I guess some of us are still clicking. I was running my Mikado this morning all was going well when my caboose disconnected and I stopped to put it back on. I had run for about 12 min. When I started back up I didn't have any locomotion, fwd/Rev gearing was working, had 30+ lbs of pressure ,throttle was working fine. No motion. Anyone seen this problem before???

T.I.A.

Arlon R. Sibert
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Old 06-13-2020, 05:10 PM   #2 (permalink)
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Sorry, It's an Aristocraft Mike and it died last Saturday...

Arlon...
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Old 06-13-2020, 07:36 PM   #3 (permalink)
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I assume the RC is working the servo for the throttle.....

Make sure the set screw is tight on the throttle shaft and

it is really opening the steam valve

Make sure you are not in neutral.............


Good luck
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Old 06-14-2020, 06:00 PM   #4 (permalink)
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Sorry, It's an Aristocraft Mike and it died last Saturday...

Arlon...
You might have water in the Tender electronic. Dry it out or put a fan on it.
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Old 06-15-2020, 08:36 PM   #5 (permalink)
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A few things to make sure of:
  • You actually have steam pressure (safety is blowing off, pressure gauge isn't stuck and giving you a false reading)
  • Forward/reverse gear is working (you can actually see the radius rod change position in the valve gear, and it moves all the way to the top and the bottom of the expansion link when you change direction)
  • Throttle is working (throttle lever moves, and is not loose on the shaft as Sal mentioned)
  • Mechanism is not binding (you should be able to turn the wheels by pushing the locomotive forwards or backwards on the track)
  • No major steam leaks when you open the throttle

If all of that checks out, then it's possible the steam line could be clogged. That seems unlikely though, because the Aristo Mike has a dead-leg lubricator, so it should not be feeding steam oil through the superheater like most Accucraft engines do. It's also possible that the cylinders could be full of water. Try changing direction a few times with the throttle open and give it a gentle push if necessary to clear the cylinders.
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Old 06-17-2020, 09:10 AM   #6 (permalink)
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I would also check that the oil lube is full and not all water. Could have locked up cylinder. Later RJD
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Old 06-18-2020, 03:50 PM   #7 (permalink)
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Thanks for the reply, I don't use the water bath as here in las Vegas don't need it. All controls are working ok from the tender and remote.


Arlon.
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Old 06-18-2020, 03:52 PM   #8 (permalink)
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Thanks for responding, Was able to steamup yesterday . Throttle shaft is working Servos respond. Manual mode ,both Fwd/Rev , Throttle work OK. When pressure gets to 40 and pops off from remote moving Mike by hand Fwd/Rev get some resistance from wheels and some sputtering from Cyl. but no desire to go either fwd/rev. I don't think it is getting full steam to cyl. When pressure is at Zero it moves freely by hand both directions. When Fwd is selected from remote and I manually pull in reverse wheels will go backward with a little resistance I wouldn't think they would turn backwards at all.. Same for going in rev. from remote. Maybe steam is blocked somewhere.
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Old 06-19-2020, 11:37 AM   #9 (permalink)
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Thanks for the reply, I don't use the water bath as here in las Vegas don't need it.
Arlon.
The water bath keeps the gas temperature stable. Even in a hot climate!
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Old 06-19-2020, 07:35 PM   #10 (permalink)
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Sounds like it could just be that your cylinders are full of water. Try flipping it back and forth between forwards and reverse a few times, and give it a gentle push as needed. It might take a little while to get them cleared and warmed up to where it will want to take off on its own.

Also, when you fill the boiler, be sure not to fill it completely full, leave a little space at the top for the steam to accumulate.
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