Because agricultural tractors are limited by the seasonality of agricultural production, the annual working hours are very short and the rest time is relatively long. If the rest is not well taken care of, the damage caused often exceeds the damage during normal work. Here are some of the diseases and preventive measures that put the tractor vulnerable for a long time.
1. Tire Deformation After the tractor stops, its own weight is completely borne by the four tires, which causes the parts that contact the ground to undergo excessive pressure and deformation. The longer the tractor is parked, the more difficult it is to recover the deformed part, and the tire is also deformed by plastic deformation. If the shape of the tire changes, that is, the tire loses balance, the body vibration of the tractor will increase, and at the same time it will accelerate the wear of the tire and shorten the service life of the tire.
When the response measures are taken for a long time, the tractor can be supported, or the tractor can be moved back and forth every few days to prevent the weight of the tractor from being pressed on the same position of the tire for a long time so as to ensure that the tire is not deformed. In addition, the removed tires should be kept from being squeezed during storage to prevent deformation.
2. The battery will not be used for a long period of time. It will slowly self-discharge. If it is not charged in time, the active material on the plate will gradually form a thicker and harder lead sulfate. Lead sulfate crystals are poor in conductivity and large in size and can block the pores of the active material, impede the penetration and diffusion of the electrolyte, and increase the internal resistance of the battery. At the same time, this lead sulfate is not easily converted into lead dioxide and sponge-like lead during charging. This lead sulfate will lose its reversible effect, so that the effective material of the plate is reduced, the discharge capacity is reduced, the service life is shortened, and the battery can be severely scrapped.
Response measures If the tractor is not used for a long period of time, the vehicle should be started every 30 days or so, and the medium rotation speed should be about 30 minutes. If there is a special charger, the battery should be removed, the outer surface should be scrubbed, and after the electricity is fully charged, Vaseline should be painted on the electric pile and placed in a clean and warm room. During the storage period, the battery should be charged at least once a month. Anti-vulcanization or cracking. When charging with a dedicated charger, the charging current should be selected properly. If the current is too low, the charging time will increase. If the current is too large, the battery will be damaged. In addition, the battery cover must be unscrewed when charging, and pay attention to ventilation, can not be close to the charging battery port with an open flame, because the hydrogen generated in the battery during charging is prone to deflagration.
3. After aging of the aging rubber parts of the rubber parts, the performance will be deteriorated and the service life will be shortened significantly. The rubber parts on the tractor are mainly tires, gaskets, and dust covers. In the long-term storage process, due to sun exposure, deformation by external forces, contamination of oil and other reasons, these components will accelerate the premature crack, elasticity and strength reduction, surface stickiness or become hard and brittle phenomenon.
The first step is to avoid direct sunlight, to store and park, and use metal garage doors as much as possible; Second, to avoid rubber parts sticky oil, if inadvertently contaminated, should be immediately cleaned; Third, to avoid long-term stress deformation.
4. Springs, transmission belts The springs, belts, and other parts of a tractor's deformation will produce plastic deformation if subjected to long-term stress, and will not return to its original shape after the force has disappeared.
Responsive measures All springs on the tractor that are pressed or pulled must be relaxed. For example, the intake and exhaust valves of the engine should be placed in the closed state; the handle of the clutch on the tractor should be placed in the “closed†position; the belt should be removed. Hanging on the wall.