Why is it that the excavator can't shut down?
Malfunction: a Caterpillar 320 excavator failed to shut down after operation
Repair method:
1. First, check whether water flushes through the cab. If so, it may be caused by circuit problems
2. The battery relay is stuck.
Knowledge supplement:
Is it OK for Caterpillar 320 excavator not to install thermostat? Is there any harm to the machine? The function of thermostat is to prevent the engine from overcooling For example, after the engine works normally, if there is no thermostat when driving in winter, the temperature of the engine may be too low At this time, the engine needs to temporarily stop the water circulation to ensure that the engine temperature is not too low Thermostat is to control the temperature so that the machine is at the best temperature.
Some of the high temperature in summer have been removed. It is necessary to make sure that it is not the problem of the machine that causes the mechanical temperature to increase before it is removed. After removal, the temperature is low a few days, and then it is high again. Because the water channel is dirty, it is recommended not to remove the temperature saving cleaning water tank The engine cooling system has two channels, one is called small circulation, and the other is called large circulation. The small circulation cooling water does not go through the water tank, but directly to the water pump suction port; The large circulating cooling water flows through the water tank to the water pump suction port Thermostat is used to control the passage of cooling water The engine is generally required to work at 85 ℃, and the wear of parts is minimal when working at this temperature When the engine starts to work, the temperature is low, and the cooling water is not cooled by the water tank; When the water temperature reaches 70 ℃, the wax core of the thermostat is heated and expanded. Slowly open the control valve, seal the small circulation channel and open the large circulation channel The engine works at low temperature, and the lubrication is poor, which is easy to cause the strain of the sports pair.
