The ABA manual (figure 3) shows two potentiometers on the underside with the smoke volume pot near the center behind the lead truck and the sound volume to the top of the figure. Those units are meant to be operated tethered. Both A units have motors and smoke units, but I suspect that only one of the A units has the PS2 boards and potentiometers. Did you look at the other A unit?

What is the MTH PN for the steamer? If it is a PS1/QSI, and if someone tried to run it with a dead battery, it may need to be reprogramed.

 

What is the MTH PN for the steamer? If it is a PS1/QSI, and if someone tried to run it with a dead battery, it may need to be reprogramed.

Thanks for the replies! I am at work right now but I will post model numbers as soon as I get home.

First off, we need actual model numbers.

Pictures are useful if you're questioning features. Specifically, let's see a shot of the 20-2483-1 that shows this area.

View attachment 272401

Those pots are not present on either A units or the B unit. I will post photos when I get home.

Thanks

J

 

First off, we need actual model numbers.

Pictures are useful if you're questioning features. Specifically, let's see a shot of the 20-2483-1 that shows this area.

 

First off, we need actual model numbers.

Pictures are useful if you're questioning features. Specifically, let's see a shot of the 20-2483-1 that shows this area.

View attachment 272401

OK! Here it is! A shot of the box and a shot of the A unit! Not there!

 

Look at the other A-Unit, you're showing us the trailing A. The lead engine will have a speaker in the tank.

 

Whoops. I attached the wrong photo. Leading A photo attached! Again, no pots or switches.

 

Perhaps it's the later version, I did recently do an upgrade on a set of these that had the controls at the rear door. The manual may not match the cars.

Does the rear rubber bellows pivot down?

 

Like John said. This is a UP F-7 from 2004.

 

Like John said. This is a UP F-7 from 2004.

View attachment 273538

That is most interesting for an MTH diesel unit. I have never seen a diesel with the switch & charging port at the front or rear of the engine area. I have 7 MTH steam or diesel engines and never seen one with that set-up before.

The most challenging one I had was a 4-8-4 MTH steam engine for Reading Lines as it had the charging area underneath the tender and volume switch and another switch on the top of the tender.

So it seems that you really need to look at your MTH steam or diesel engines real close to find all their features or charging port areas.

My newest MTH engine, a Reading SD-70ACe has the access port, area to adjust volume and steam output, under one of the covers near the back of the engine. It is a PS-3 MTH engine and I am using it with the MTH DCS unit and MTH Z-1000 for now.

Lee Fritz

 

I had totally forgotten about those, I just did an upgrade to TMCC for Brian (PTC) to a pair of those with the controls behind the rear door.

 

So sorry I haven't been around, we had a family emergency.


The controls were indeed behind the rear door. Thank you so much for all your help!


Jon

 

All's well that ends well.

 

Hey, that rear door in new to me. I don't know if I will ever have one, but it is good to know. If I can remember. Ha ha!

 

Mark, you don't have to remember. It's diagramed in the instruction booklet. Without that I never would have found it unless by accident!

Jon, I hope your family emergency worked out for the best.

 

Oh yes, the instruction book!! You are absolutely correct! All but one of my engines were bought used, and usually the instructions are missing. Yes, like many folks, I will look all over before going online to get the book! LOL


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Usually mth is good about posting the instructions on their site