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GU Starter motor eats brushes like popcorn
Posted: Thu Dec 15, 2005 3:58 pm
by Guy
TB45e has eaten is second set of brushes in a few months .. only gets started 3 or 4 times a day, battery has no real issues.
Any ideas ??
Posted: Fri Dec 16, 2005 8:28 pm
by fnqcairns
Check the revolving surface the brushes contact if it is scored it will eat brushes like no-ones business.
cheers
Posted: Mon Dec 19, 2005 2:09 pm
by Area54
While looking at the commutator, check if the com bars are uneven in colour, ie 1 bright copper then the next dark and burnt - this will indicate a short in the windings. The short will cause the brushes to burn more on rotation. Easier to see on a ventilated motor, as you can see the comms and brushes creating a complete halo around the comm when the motor is running, impossible on a starter motor though - totally enclosed frame.