Robert Bosch Starting Motor Repair
MAKE NO-LOAD TEST
1. Make connections as shown, and use an ammeter (A)
capable of measuring several hundred amps.
2. Measure current draw in amps and compare with
specifications given earlier in this group.
3. If speed and current draw are slightly low, connect a
voltmeter between motor terminal and frame. Observe
voltage during test. Voltage may be reduced because
of high current draw on battery.
4. If speed or current draw is significantly different than
specified, diagnose problem per chart which follows.
G--Field Coil Connector