[ARC5] BC-454-B Dymamotor Question

[Richard Schumann]

From: Ken W7EKB


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One thing I found very interesting in my "research" on the DM-34s I have 
here is that the manual states unequivocally that experience has proven that 
replacing bearings in the field resulted in very much reduced operating life 
and it was stated flatly that if a DM-34 needed bearing-work, it was to be sent 
back to the factory.

I have been trying to figure out why this was the case.

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