How to maintain the tractor in winter
1. The tractor should be parked in the garage as far as possible to prevent wind, sun, rain and snow erosion and freezing.
2, thoroughly clean the filter, oil pan, transmission, otherwise it will cause different grades of lubricating oil mixed storage, reduce the lubrication effect.
3, timely replacement of lubricating oil. Because the viscosity of ordinary lubricating oil increases with the decrease of temperature, leading to poor fluidity, and the friction resistance increases when the parts move. When the tractor starts, it often leads to difficulties in cold starting, and even produces accidents such as burning tile and holding shaft. Therefore, when winter comes, the lubricating oil in the oil pan, air compressor and hub bearing should be changed into the lubricating oil used in winter in time; The transmission transmission, differential, steering gear oil in the winter with the gear oil.
4. Clean the fuel tank thoroughly. In order to ensure the purity of diesel oil, reduce freezing, but also often clean the tank, generally require 20 days to clean once, cleaning can not use a brush, can only use gasoline or diesel cleaning, if found inside the paper filter blade deformation or rotten wear should be replaced with a new piece. The pressure regulating valve on the filter seat can not be cleaned with gasoline, so as not to damage the sealing rubber ring of the pressure regulating valve. The anti-freezing device of the oil tank can be installed if conditions permit, and the insulation cover of the oil tank tubing can be used to prevent the freezing, so that the tractor can start and run normally in the harsh winter season.
5. Fill and replace antifreeze in time. Before using antifreeze, first of all, the original engine antifreeze should be removed, and then clean the waterway. It is best to fill the antifreeze specified by the manufacturer, so as not to cause the rot of the waterway in the future. In addition, the injection of antifreeze should be appropriate, must not be ignored.
6. Drain the cooling water. When releasing water, the water switch should be fully opened (generally, the engine has two water switch, one on the cylinder body, one at the bottom of the radiator water outlet) and the radiator water cover. After the water is discharged, the engine can be started to run for a while, so as to drain the cooling water. In addition, the cooling system should be cleaned before winter to prevent debris from blocking the radiator and engine water switch.
7, regularly release the water in the fuel tank, strictly prevent water mixed with diesel, so as not to freeze diesel.
8, appropriate increase the proportion of battery electrolyte, with supplementary charging method to keep the battery in the state of sufficient electricity, so that the battery is not due to low temperature and too much loss of capacity and freezing battery shell.
Six taboos for tractor maintenance in winter
It is forbidden to do change garments according to the maintenance: must be at the time of change garments according to the tractor parts for descaling, cleaning, and lubrication, valve clearance, injection pressure, injection advance Angle and other technical indicators to adjust to the prescribed scope, for the clutch, brake and control institutions, when conducting comprehensive adjustment, ensure the good technology of the tractor, to lay a good foundation for the security for the winter.
It is strictly prohibited to use ignition, dragging, sliding slope, open fire baking car, car start after adding water, adjusting the pressure of injection oil and other wrong methods to start: when the weather is cold, the tractor is not easy to start, if the above method, may cause clutch and gearbox gear by impact and damage; To start correctly, low temperature starting liquid can be used and sprayed into the air filter. Spraying time and amount should be controlled before starting. After starting, it rotates at a medium speed. It can't start until the water temperature reaches more than 40℃. Only when the water temperature reaches 60℃ can it be operated with load.
No cooling water is strictly prohibited to start: be sure to remember the first time to add water can not add boiling water, so as not to be caused by sudden heat of the body shock crack. In the tractor running in case of water tank boiling or need to add water, can not suddenly add cold water, at this time should stop the operation, after the water temperature is reduced, and then appropriately add clean drinking water to prevent the cylinder head and cylinder sleeve burst.
It is forbidden to forget to drain the cooling water: when the temperature is 4℃ and below, remember to stop at night and stop for a long time, the tractor without antifreeze should drain the cooling water in the engine. In the discharge of cooling water, to wait for the water temperature to drop below 60℃ when the water, otherwise, easy to cause damage to the body or cylinder head; More can not leave before the cooling water is discharged, must check whether the discharge is clean, to waterproof valve is blocked by impurities, the rest of the water at low temperature abnormal expansion freezing crack body.
It is strictly prohibited to use unqualified firewood and oil: the diesel grade used by the tractor is determined according to the local temperature: the minimum temperature is 0 to -5℃, then choose -10 diesel; The lowest temperature in -10 to -15℃, choose -20 diesel; Minimum temperature is not less than -30℃, choose -35 diesel; The lowest temperature in the high cold area around -40℃, choose -50 diesel. Therefore, when choosing diesel oil, the freezing point should be selected below the local temperature of 5 ~ 10℃. The oil viscosity of the engine used in winter is high, which brings difficulties to lubrication and starting, so No. 8 diesel engine oil should be replaced; The lubricating oil in the gearbox and rear axle should be replaced with No. 11 diesel engine oil or No. 20 gear oil.
Six is strictly prohibited driving bad habits: do not pay attention to driving methods, illegal operation. For example, before extinguishing the throttle, that can be in the cylinder memory of some diesel, easy to start the next time. In fact, this will only cause the diesel in the cylinder can not be completely burned and cause carbon deposition, and may flow along the cylinder wall into the oil pan to dilute the oil, not only for the next start, but also affect the lubrication performance of the oil, the gain outweighs the loss. Still have not add diesel oil in time, winter before extinguishing should fill diesel oil tank to tractor. Otherwise, the water vapor in the air in the empty tank will liquify and condense into water droplets after cooling the tank wall, which will be mixed into the diesel oil, resulting in the engine cannot work normally.
