No-Load Test

1. Make test connections with starting and charging tester as in Fig. 24. Ensure current is not flowing through ammeter (rheostat at maximum counterclockwise position).

Fig. 24 No-load Test Connections:

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.