Tankhobby

I have several of these, the later models (Pz IV, Pershing) were designed a little better and operate smoother. The trim controls are very finicky and although I haven't solved the problem having fully charged batteries and not being too far from the model helps a lot. There is also a lot of plastic dust from the tracks or suspension's moving parts as it runs. These weren't designed to run every day and to last for years without replacement parts and maintenance. Use one of those compressed air cleaners on the running gear, do not use oil lubricant, some of them destroy plastic (there's a lot about that some others may chime in). In my opinion if you have to lubricate something use Tamiya's ceramic grease, I believe that is plastic safe.