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How to check the excavator circuit?

Visits:Date:2017/4/28 17:54:11

Excavator used for some time, many excavators master reflects "excavator circuit how to check" the fault. Here the maintenance of the master for you to answer "how to check the problem of excavator circuit"
: the
how to diagnose the fault of AC generator, generally speaking, when the AC generator in power, alternator indicator should be kept in the off state. When the excavator engine is running, the alternator may be out of order if the alternator indicator lights up. How does the
check the circuit?
1. stops the engine. Switch the key to the ON position. Confirm alternator indicator light up. The
2. then starts the engine and measures the voltage it generates when the alternator turns.
as described above, measure the voltage between terminals beside the alternator. If the voltage is about 28V, the alternator works normally. If the voltage is not given, the alternator or regulator has some trouble. The
3. measures the voltage between terminals of the alternator. If the measured voltage is about 24V, the alternator circuit can be considered normal. If the measured voltage is low, the fault may be due to insufficient battery capacity or loose electrical connections. When the voltage is zero volts, the wires between the fuse box and the alternator are loosened or broken.
in addition, the alternator cannot generate electricity if the ground wire is broken.

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