Reasons and countermeasures for frequent failure of harvester operation

Ignoring Radiator Maintenance Due to the lack of air pump and water gun equipment in the countryside, in order to completely remove the blockage in the lower air passage of the radiator, it is necessary to dismantle the battery, etc. Therefore, some operators are afraid of trouble and often neglect to seriously clean this part. With the increase in the use of time, the heat dissipation area becomes smaller and smaller, thus losing the effect of heat dissipation. The over-loading harvester has reduced speed and reduced processing when harvesting in the fields with deep muddy feet and high yield per mu. However, the machine is still operating under long-term overload due to excessive power consumption. As a result, the engine speed drops, which causes the fan speed to decrease, the air volume is insufficient, and the cooling air passing through the radiator is insufficient to cause the engine to overheat. The method of adding cooling water is not necessary. When many operators stop and add water by boiling the water tank, first use a bucket of water to splash water in the tank cover to lower the temperature, so that the heat sink is also wet; some operators are careless when adding water. Overflowing water also flows in large amounts to the radiators. What's more, the excess cooling water is splashed on the radiators. They do not know that this has added to the frost, and the air passages between the radiators are inherently small and susceptible to clogging by dust and debris. After the water is poured on, the dust adheres to the heat sink, so that the air passage area is rapidly reduced or blocked, the heat dissipation effect is reduced, and the pot boiling time is shortened until the harvesting operation cannot be performed. The water tank is not capped, causing the heat sink to clog up. The water pump is worn. Since the water tank is often open, the cooling water must be shut down before adding the cooling water to open the cover. Many operators save the time of cooling and uncovering, and let the water tank open to work. When the engine water temperature is too high, just add the water by opening the hood. Such a large number of crop leaves and dust enter the interior of the tank through the opening, and as the cooling water flows through the water pump to reach the body and the cylinder head, and gradually deposits there, directly affects the heat dissipation of the deposition place, and at the same time accelerates the wear of the pump parts to make the water pump The reduction in flow will affect the cooling effect; it will also cause the cooling core to clog, reduce the amount of cooling water passing through, and the cooling water will not be effectively circulated for cooling, causing the engine to overheat. Therefore, when harvesting crops: (1) Choose dry plots as much as possible, and adjust the forward gear, cut width, and cut height of the harvester according to crop yield, level, and maturity in order to minimize long-term overload. jobs. (2) Add the cooling water as much as possible to do not wet the radiator, not to splash water, which is the main reason for the engine overheat caused by the improper operation of the hand. (3) Remove the blockage on the air channel between the radiators in time, and in general, use the compressed air to clear; if it is difficult to remove, use a water gun to flush the radiator. Dry the radiator and put it into use. (4) Change the protective shed (referring to the old product) in front of the tractor housing to a nylon mesh type, and insert a nylon mesh frame between the radiator and the battery to reduce the clogging of radiators with debris. (5) In order to save the time required to stop cooling and remove the cap due to the addition of cooling water during operation, after removing the cap of the tank before operation, it can be sealed with a multi-layer gauze and fixed with wire, which can prevent operation scald. It also saves time and prevents dust and crops from entering the tank.