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Checking the regulated voltage (check the voltage regulator (2,7))
This test determines whether the generator voltage regulator controls the output voltage of the generator. Before operation - The installation of a generator and connecting wires; - The battery is fully charged; - Alternator drive belt tension; - Fuse-link; - The absence of abnormal noise of the generator. Turn the ignition switch to ?�OFF?�. Disconnect the cable from the negative terminal of the battery. Connect a digital voltmeter to the conclusion ?�S?� of the generator and "weight". Connect the "plus" voltmeter to the ?�S?� of the generator, "minus" to the appropriate "weight" (to the body) or to the negative terminal of the battery. Disconnect the output wire from the terminal "B" of the generator. Connect an ammeter (DC, with a range of 0-100 A) in series between the output of the "B" and the generator disconnected output wire. Connect the "negative" of the ammeter to the disconnected output wire, "plus" a conclusion "B" of the generator Connect the control tachometer according to the manufacturer's instructions. Attach the wire to the negative terminal of the battery. Make sure that the voltmeter shows battery voltage.
NOTE If the meter reads 0, then either there is a break between terminal ?�S?� of the generator and the positive terminal of the battery or fuse burned out. |
Turn off all lights and electrical accessories. Start the engine. Set the engine speed is 2500 min -1. Read the voltmeter when the alternator current is 10 A or less. If the voltmeter reads the standard value regulated voltage given in Table 7.7, the voltage regulator is defective. If the voltmeter does not correspond to the range of nominal values, or faulty voltage regulator, or generator.
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