Starter Motor is short time duty, just 30s for rated working time, it can works on -30℃~105℃ and relative humidity below 96%.
The material of the starter motor should be not contained asbestos or cadmium. The starter motor usually takes single wire system, but in special situation, two wire system.
There should be no scratch and knoked wounded on the surface of the Starter Motor. And the every nut should be screwed down.