Brush springs are one of the most neglected critical components of the generator. Springs are often replaced only when there is obvious damage, which can lead to mixing of unequal spring forces. Unequal spring forces cause unequal brush pressure, causing unequal current distribution between brushes, often leading to catastrophic failure. Old sluggish springs are slow to react allowing long duration of loss of contact between the brush and slip ring, arcing is the result, wearing on brushes and damaging the slip rings. Changing springs as a set every 3 to 5 years is a good maintenance practice giving better performance and longer slip ring and brush life. Morgan’s complete generator spring kits contain all new phase and ground brush springs of proper and equal forces.
Morgan Advanced Materials | http://www.morganplc.com