Purchased a MTH Doodlebug at a train show. It runs fine but just creeps at full voltage (running conventional). Have replaced battery, greased gears, and
reset. Other PS2 engines run fine on layout. Any suggestions?
Joe C.
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Just a wild guess here. How's the tach, wires, and tach tape or flywheel paint look?
I'm just throwing it out there. I have also seen boards get messed up with shorts. I would not keep running until checking out what's wrong. A bound up motor or short could take it down.
Have you spun the flywheel by hand to check for binding? Any unusual noises from the gearbox? Tires in place? etc.
I do not have this model.
Are both truck's wheels spinning?
I believe it's possible to set a maximum speed with Ps-2 engine in command. I was going to suggest a feature reset but noticed you're running conventional .
Try Joes suggestions . sound to me like something may be binding... Also try a Conventional reset.. One horn & 5 bells. good luck.
Thanks guys, no unusual noises, nothing seems to be binding, both truck wheels are turning, tried reset.
I guess I'll have to run it at 2 scale mph.
Joe C.
How's the amp draw?
Shut the smoke off, any difference?
Looks like they were made with basic protosound (1) or PS2 3 volt?
http://mthtrains.com/search/Doodlebug
Maybe send an email to G with the exact model number and description of what it's doing.
No smoke in the Doodlebug. What's the exact model you have?
When you say no binding did you actually open the engine and manually turned the flywheel? And you took a look at the flywheel striping and tach wiring as Joe suggested?
I assume direction control works and it also creeps at the same speed in reverse?
You can turn off speed control (which takes the tach out of the equation) by W-B-B controller sequence. This directly applies track voltage (rectified) to the DC motor. This might provide additional insight. Repeat the W-B-B to turn speed control back on (or do a W-B-B-B-B-B reset).
Guys,
Still no improvement. Model# is 30-2190-1
Did look at flywheel (turns manually), tach wiring and striping look good.
Will try to turn off speed control.
Joe C.
Will try to turn off speed control. Worth a shot.. good luck...
Run with shell off. Are both motors turning? Are motor windings black or dark? Something is not right. Amp meter would help, because if it is drawing hi amps the motor or motors maybe bad, or the circuit board. You could unplug the motor harness and test each motor with a 9V battery. If they do not spin fast and free, motor is bad. G
