Because operators are busy and tired in daily work, it is easy to ignore some details of daily maintenance. It is customary to wait until the machine breaks down before carrying out maintenance. In fact, the failure of daily small parts not only affects the operation of the component itself, but also affects the work of related parts. Therefore, routine maintenance is more important than troubleshooting. The maintenance of excavator mainly focuses on the power system and hydraulic circulation system. The power system is the source of energy output of the excavator. Therefore, if the power system of the excavator fails, it will directly affect the normal operation of the excavator. The daily maintenance of the power system can be divided into oil filter, oil-water separator, diesel filter, air filter element, engine coolant and radiator. This article will explain the role of engine coolant and radiator and the importance of daily maintenance.
1. Engine coolant
The engine coolant plays a key role in maintaining the normal operating temperature of the engine. Therefore, the engine coolant should be checked frequently and replenished timely in daily use. If the amount of coolant is not paid attention to during routine maintenance, the radiator may overheat due to insufficient engine coolant. This will cause great damage to the engine. In addition, it is prohibited to use tap water to replace coolant. In this way, not only can the engine and hydraulic oil not have an effective cooling effect, but also can produce scale to block the water tank, resulting in high temperature and even damage to the engine. The coolant must also be thoroughly replaced regularly. If the coolant is used for a long time without replacement, it will deteriorate and oxidize to form acidic substances after expiration, which will corrode the metal parts in the water tank. Damage and leakage of water tank are caused.
2. Radiator
The radiator cools the hydraulic oil and engine coolant when the excavator is working through the circuitous cooling fins to maintain the thermal balance of the oil temperature and water temperature of the whole machine. However, it is easy to neglect the cleaning and maintenance of radiator in daily use. In fact, the water tank of the excavator is easy to rust and scale after being used for a period of time. Rust and scale will limit the flow of coolant in the cooling system and reduce its heat dissipation. Therefore, clean the water tank regularly with a powerful and efficient cleaning agent to remove rust and scale. At the same time, clean the external fin surface of the radiator. Clean the dust, branches and leaves attached to the radiator surface in time to ensure that the radiator works normally. It can not only ensure the normal operation of the engine, but also extend the overall life of the water tank and the engine.
