Testing Cutout Relay Unit Closing Voltage

Use same tester connections as previous Test C. (Fig. 51-9)

1. Turn field control variable resistor to "Open" position.

2. Turn load control knob to "Direct" position.

3. Operate engine at 1500 RPM (approximately 30 MPH).

4. Slowly turn field control resistor knob toward "Direct" position observing voltmeter.

As resistance is decreased in field circuit, voltage will rise. Note highest reading before meter pointer "kicks" to read battery voltage. Repeat operation several times, each time turning field control to "Open" position. Highest reading observed is the cutout relay closing voltage.

If closing voltage is not within specifications (see Fig. 51-1), replace regulator or adjust according to manufacturer's Service Bulletin.

Cutout Relay Figure

Figure 51-10.

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