No-Load Test

Fig. 10 No-load Test Connections:

For assistance in diagnosing this starter, refer to Starting and Charging/Starting System/Diagrams. Ensure battery is fully charged for the following tests.

1. Make test connections with starting and charging tester as in Fig. 10. Ensure current is flowing through ammeter (rheostat at maximum counterclockwise position).
2. Disconnect starter from battery. Then reduce resistance of rheostat until voltmeter indicates same reading as obtained while starter was running. Ammeter will indicate no-load current draw, compare this to that of the specification chart.
3. If current exceeded specification, inspect for rubbing armature, bent shaft, binding bearings or shorts in armature and brush assembly.