K-Line MP-1500 dragster version....(new issue.....)

They were screamers, they actually came out and recommended rewiring them so they ran slower I do not remember all the details though on what wires to move around

This might help

https://ogrforum.com/t...ly=18042720740128225

Thanks sir....was searching for MP-1500 and not finding anything.....THX!

OK .....seemingly simple afternoon project is not so simple. I have worked on and repaired a number of MTH and Williams locos. Rewire, new DCU etc. All has gone well....until I opened up the MP-15....what a snake pit! I can't tell what wires feed the truck motors, what that mini PC board does, looks like a bus bar or something, just what wires do I cut?? I can't tell how the trucks come off even!

Also there is a switch under where the fuel tank would be that say 'PARALLEL / SERIES on it. Flipping it between the two does not seem to make the loco run any different. 

HELP....again......

That sounds like a later model than my MP-15 The switch you are talking about was added to prevent having to do the rewire that we had to do on the early ones. It's interesting that it has no affect

On my MP15 switcher I connected the two orange wires from the motors together. There are two blue wires that go from the board to each motor.  The orange wire will just go motor to motor when done. mine is still pretty fast but much slower than before.  It used to fly off the track on 036 curves eaisly.  I hope this helps.  Jon

So it may be best to just leave it alone or gut it and start from scratch??? I think I'll leave it. At worst it will look good in the layouts yard!  Now series setting  should make it run slower correct??? Some posts on the net have it backwards.

You may have to change out the circuit board in your K-Line engine.

I had an early MP-15 by K-Line, Kennicott Copper Corp, and it would derail on me as one set trucks was going twice the speed of the other set. Turned out to be a bad circuit board that K-Line fixed for free, just paid for shipping it to them.

Any way never seen a switch underneath on my MP-15.

Lee Fritz

My MP15 switcher is a older Conrail model. It ran fine just few off the track on the curves.  After the rewiring it is still pretty fast but stays on the track.  The switch on the bottom only has wires on one side, I think it is a direction lock.  

Thiifs my only Kline engine.  I think I am going to try a RMT Conrail Bang next.

Thanks, Jon

I have a Santa Fe MP15 made not to long before the end of K Line.  It has the series /parallel switch.  I then got the K Line by Lionel Power and Dummy set of Southern MP15s.  The best I remember it does not have the switch.  I think the horns came out before the switch but I may be wrong.

Mine has the switch but no horn.

Another speed fix would be a TMCC or other command control upgrade.

I added tmcc to a k line mp15.  It will now run at very slow speed.  Also added coil couplers which required a little revising.

marty