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I bought a brand new M.T.H. Premier ES44AC and their is a noise coming from the trucks. I'll do my best to describe it. When it is in motion I hear a dull, low pitch grinding creaky noise as if two things are making contact with each other that shouldn't be. It's pretty annoying. Anyone know what this is? 

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You really should post a video so we have some idea of what you are describing.

Brand new engines need to break in and have the gears loosened up a bit. They need grease, and oil the main axles like the manual says before running.

https://mthtrains.com/sites/de...ction/20dl19404i.pdf

"Lubrication You should lubricate the engine to prevent it from squeaking.  Use light household oil and follow the lubrication points marked “L” in Fig. 1.  Do not over-oil.  Use only a drop on each pivot point."

Also, make sure the main truck screws that hold each truck on, are tight (very snug). I got a one gauge engine in that had a loose mounting screw and allowed the motor gear to slip. Made much more noise in one direction than the other.

 

Last edited by Engineer-Joe

Its entirely possible that your engine escaped the gear greasing spot on the production line for whatever reason. I would be concerned about metal on metal noises, and if it was mine I would do what it takes to grease them. The external gears on the trucks are easy to get to, and there may be screw on the bottom of the truck to inject some grease into the internal worm gears. 👍

Rod

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