Re: [PSUBS-MAILIST] Pressure Compensated Trolling Motor Question

[SFreihof@aol.com]

In a message dated 03-06-26 16:31:02 EDT, you write:

<< I have a question for anyone using Liquid Compensated Trolling motors.
 
 I've heard that the drawback to them is that the carbon dust from the 
 brushes goes into suspension and eventualy causes a ground fault to the 
 case (or direct short if no ground fault detection is used).  This seems 
 quite plausible with the simple solution being to change the 
 compensating fluid regularly. >>

Question:  Do brushes have to be carbon?  Can they be replaced with copper 
brushes to eliminate the graphite dust?