No-Load Test
- With tester and battery connected to starter, operate starter motor and note voltage reading and tachometer reading. See Fig 1. Disconnect starter from the battery. Turn load control knob until voltage reading is same as when starter is connected. Refer to the NO-LOAD TEST SPECIFICATIONS table.
- Read amperage draw, and if amperage reading is less than specifications, starter has high electrical resistance. If starter RPM is less than specifications, starter has high electrical resistance. If starter RPM is less than specifications, starter has worn bushings or bent armature shaft.