When replacing the alternator on your Stairmaster Stepper 4400CL or 4600CL, it is important to note that the physical location of the wire connections as well as the markings may have changed from the alternator being replaced.
Three wires come from the internal power board and connect to the alternator. They are Brown, Black, and White.
Wiring an alternator with the Yellow Sticker:
- Attach the White wire to the alternator terminal labeled B+.
- Attach the Black wire to the alternator terminal labeled GND (it may be necessary to use a self-tapping screw).
- Attach the Brown wire to the alternator terminal labeled FLD.