AML GP60 second release

 this page under construction




Hoo boy! Lots to talk about, mostly assembly and design. While this page is being built, it will be in goofy order. Basically a product with a complex and non-standard electrical interface with NO DOCUMENTATION WHATSOEVER. Also several design issues in the final product, QA and assembly issues.


Issue: missing or broken parts

So my buddy RJ just got one (Jan 2024) and the instruction plate under the dynamic brake blister is missing:

This is what you should see:



TThis is what RJ found in his:

IMG 8668


Broken/missing detail parts:

  • missing number board - reported by Ted
  • missing brake hose assembly - reported by RJ
  • broken brake hose assembly - reported by Ted
  • broken underbody piping - reported by RJ
  • missing switch plate (as above) - reported by RJ
  • missing pamphlet with exploded diagrams - reported by RJ
  • broken safety chain between end stanchions
  • HUGE Some locos wired wrong, shorting the rails together (because trucks are identical, and they are in reversed direction, just like USAT diesels, the track and motor wires must be wired opposite between the 2 trucks. For a short time at the factory, apparently the main electronic tech who does the wiring was sick, and the temporary guy did not wire them right. Now, this loco could NEVER be test run on a piece of track, with the left rail shorted to the right rail, so not a great QA standard in the factory.


Problem: poor or defective assembly

Back to the same pictures, this is how the top switch board should look when the trim plate is removed:




but see RJ's unit:

IMG 8668


See a problem?

  • missing metal plate with legend
  • Board is mounted 180 degrees wrong
  • Battery charge plug obstructed
  • Shell not routed out to clear battery charge plug

A sharp observer will see that the extra clearance for the charge socket was routed with a mill, seeing the radiused corners on Ted's loco.


Another example is that the speedometer drive cable should be coming from the front left truck sideframe. Ted's was on the right rear on one loco, correct on the other loco (he has 2 SP units).



Issue, no documentation on electrical interface


This is a HUGE problem, and frankly inexcusable.

The main motherboard is designed to ONLY support an ESU Loksound 5 XL decoder.

This is foolish, since ESU is a minor player in the USA, has limited sound files, and most documentation is in German.

In any case, the main board has 4 SIP socket strips, and there is NO WAY to attach any other decoder.

There is a dumm






The electronics interface and install of other decoders is HERE.





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