SEQUENCE OF WORKS
1. Connect a universal measuring device between the "+" terminal (red wire) of the generator and the "ground".
2. To warm up the generator, the engine must run for 2 minutes at a crankshaft speed of 3000 to 4000 min⁻¹ (diesel engine – 1800–2500 min⁻¹).
3. Turn on the parking light, radio or cabin ventilation fan. This corresponds to a load of 3 to 7 A, the voltage limited by the voltage regulator should be in the range of 13.5 to 14.8 V.
4. If the voltage is higher than required, the voltage regulator may be faulty and must be replaced. If the voltage is lower, the generator carbon brushes may be worn out. In this case, remove the generator and take it to a car repair shop for repair.
PRACTICAL ADVICE
Driving with a faulty alternator
If the generator or voltage regulator fails while driving, you can continue on your way for some time. The battery takes over the emergency supply of electric energy. Depending on the degree of discharge of the battery and its capacity, the energy will be enough for about 5 hours of driving, provided that you turn off all additional consumers of electric energy.
· Disconnect the universal connector from the alternator to prevent the battery from being discharged through a faulty alternator or voltage regulator.
· Do not stop without a reason, as the starter consumes a lot of electricity when starting the engine. If possible, use coasting.
· Do not turn on the heated rear window, fan or radio.
· Turn on the windshield washer and wiper only when necessary.
· In the dark, drive without using high beams or fog lights if possible.
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