Reply to "Dead Motor Replacement?"

gunrunnerjohnOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

If you have a Mabuchi RS-385 that's not turning at all with 2VDC applied, I'd be looking closer at that motor. I just took six assorted Mabuchi RS-385 motors out of my parts box, all of them were spinning by the time my P/S got to 1.6 VDC, and humming along quite nicely at 2VDC. None of them were over 200ma power consumption, but they varied from around 130ma to 190ma. FWIW, I find that a shot of DeoxIT D5 on the commutator drops the current on most of them to lower values, one got to 110ma at 2.0 VDC. A drop of oil on the axle bearings frequently helps as well.

8/5/2410:25 AM

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