Summer work experience for tractors and combine harvesters

First, the tractor summer driving operation points

(1) Driving on a rainy day

There are many unfavorable conditions for driving in the rain, such as gloomy weather, dark light, unclear lines of sight, water slipping on the road surface, deterioration of braking performance, pedestrians hurrying to hide rain, umbrellas covering their sight, vehicles rushing ahead, etc. . Therefore, driving a tractor in rainy weather must pay special attention to various conditions on the road surface and prevent accidents at all times. When you need to brake, do not step on foot for a long time to prevent it from sliding. Unless you have to be a last resort, do not work in rainy weather, let alone drive your umbrella.

(2) Summer weather

During the summer season, the temperature is high and the weather is sultry. In addition, the heat emitted by the tractor engine causes the temperature inside the cab to be very high. This has a greater impact on the driver’s mental activities and often leads to irritable mood and emotional instability. Therefore, on the one hand, we must pay attention to heatstroke prevention. On the other hand, we must ensure that the driver has sufficient rest to prevent fatigue from driving.

(3) Muddy Road Driving

Due to large driving resistance, low adhesion, etc., it may easily lead to safety problems such as reduced braking performance, difficulty in controlling direction, and side slip. Driving on muddy roads should pay attention to: choose the correct driving route; keep a constant speed; try to avoid using the foot brake; use anti-skid measures.

(4) Driving in fog

According to the line of sight, the vehicle speed should be appropriately reduced, and the fog lights or headlights near light and horn should be turned on to remind the passing vehicles and pedestrians at any time, and ready to stop at any time. Drive along the right side of the road, but don't rely too much on the roadside. When the car will be opened and closed lights indicate, to avoid overtaking. In the event of heavy fog, the car should be suspended on a spacious and flat road to turn on the small light, and then the heavy fog will be dispersed or the visibility will improve.

(5) Precautions in other situations

When the tractor is running in hot weather and it is found that the engine temperature is too high, select a cool place to stop and allow it to cool naturally and return to normal. When cooling water is blown dry, add cooling water immediately when hot car is prohibited to prevent cracking of the body. When the temperature of the tire is too high, it is also necessary to stop and cool naturally, and it is not advisable to use a method of deflation or pouring cold water to perform cooling and pressure reduction. Check the brake effect at any time, especially when using the brake on a long slope. Check the temperature of the brake hub promptly to prevent the brake from malfunctioning due to excessive temperature.

Second, the use of tractors eight summer attention

(1) Avoiding battery exposure Because the electrolyte temperature is too high, the plates are prone to post-natal warpage and deformation, causing the active material to fall off and the wooden separators to be damaged.

(2) Selection of suitable lubricating oil In general, the 11th diesel engine oil can be used in the northern areas in summer, and the 14th diesel engine oil can be used in the south to ensure that the lubricating oil has sufficient viscosity to reduce the wear of the parts.

(3) When replacing the location of the oil radiator radiator change valve in summer, the direction change valve should be turned to the position where the oil passage to the radiator opens, so that the lubricant can be dissipated and the normal temperature of the lubricant can be maintained. .

(4) In the water tank, attention should be paid to the fact that the water is warmed up quickly due to the locomotive in summer. The water tank is easy to “open the pot” and it is easier to generate scale.

(5) Do not add cold water immediately to the water tank to prevent stress concentration and cracking of engine components. Apply low-speed, small-throttle air movement for a period of time, and add cold water after the water temperature drops.

(6) When the tractor is working continuously for a long time, it is necessary to stop at a timely manner to check the temperature of the tire and the temperature of the water, the temperature of the oil, and the temperature of the engine, and wait until the temperature drops before operating.

(7) Note that the tire inflation pressure must be maintained within the specified range.

(8) Do not park the tractor in sunlight for long periods of time to prevent the tire from overheating and explode.

Third, the driving of the combine harvester driving during the summer

(1) The operator must carry the combined harvester number plate, driving license and driving license issued by the agricultural machinery supervision department before driving the combine harvester. It is strictly forbidden that there is no discrepancy between the driver's license or driver's license and the driver's license.

(2) The cross-regional operation certificate of the combine harvester that is carried randomly shall be placed in a prominent position. In order to law enforcement officers to check the road and as a basis for exemption from payment.

(3) The distance between multiple combine harvesters or other vehicles should be separated from each other. Do not follow too tightly so as to avoid tailgating accidents with previous vehicles.

(4) In the middle of the journey, you must drive at a moderate speed and be courteous. You must prohibit high-speed driving, sudden braking, and sharp turns.

(5) In case of law enforcement personnel inspection, we must take the initiative to slow down, stop by the side of the road, consciously accept the inspection, must not be forced in front of the inspectors, open the hero car.

(6) In addition to the two operators who take turns driving on the combine harvester, the rest of the team is best to take the train or car to the wheat cutting location. You must not sit on an inclined conveyor or sleep on the unloader's table and the cabin lid to save money.

(7) Operators who go out on their own or work with the agricultural machinery group to maintain communication with each other, and need to wait for missing vehicles, should choose to drive the vehicle with a small, wide road section to stop by the side, and use triangular wood or bricks to cover the tires . Waiting for the night to open the width of the small lamp to show the position. Never stop the machine on the bridge or under the high voltage wires.

(8) Always stop and check the tire pressure, the fastening of bolts everywhere, and touch the hub with hot hands.

(9) In summer, the temperature is high. The driver must pay attention to rest and prohibit fatigue.

Fourth, the use of tractors, combine harvesters in summer to "nine defenses"

(1) Anti-engine temperature is too high

Summer temperatures are high and affect the power of the engine. If the engine is "opened" during use, most of the time it is water shortage in the water tank, but at this time, do not add cooling water immediately, otherwise it will cause the cylinder head or cylinder to burst. The right approach: stop running, run at low speed, wait until the water temperature drops to about 70°C, and then slowly add clean cooling water. Overload operation not only raises the water temperature quickly, but also easily damages the parts. Therefore, under normal circumstances the load should be controlled at about 90%, leaving 10% as a load reserve in order to cope with the short-term overload caused by uphill or arable land resistance changes.

(2) Anti-use oil is not suitable for road

Lubricating oil viscosity varies with the temperature, and the viscosity decreases when the temperature rises. Therefore, diesel engine oil with high viscosity should be replaced in summer. In addition, the freezing point grade diesel that is suitable for the use environment should be selected, so that the low price can reduce the cost.

(3) high tire pressure

In the high temperature season, the temperature difference between day and night is large, the temperature increases, the volume of thermal expansion of the air increases, and the tire pressure increases, which easily leads to tire blasting and causes unnecessary economic losses. Therefore, inflating the tires in summer should be 5%-7% lower than in winter, and the air pressure must not be higher than the standard tire pressure.

(4) Anti-engine scale is too thick

If the engine water jacket is too thick, the heat dissipation efficiency will be reduced by 30% to 40%, which will easily cause the engine to overheat, cause the engine to work worse, the power to decrease, and the fuel injector stuck, leading to serious accidents. Therefore, it is necessary to regularly remove scale and maintain good cooling performance.

(5) The tightness of the fan guard belt is loose

Under high temperature operation, the tension of the fan belt is reduced, causing the belt to slip, the transmission loss increasing, and the belt being easily damaged. Therefore, in the summer, the engine fan belt tension adjustment is slightly higher than the standard value.

(6) Air resistance in the oil brake pipe

Some transport tractors use hydraulic brakes. In high temperature summer, the oil brake brake pipeline is prone to air resistance, which seriously affects the braking effect. Therefore, in use, one must ensure that the brake oil is full, and secondly, prevent the pipeline from leaking. Thirdly, when air resistance occurs, it must be timely. Drain the air.

(7) Anti-fuel system air resistance

The higher the temperature, the faster the fuel (especially gasoline) will evaporate, and the easier it will be to create a gas barrier in the oil circuit. Diesel engines may also cause air resistance due to leaks in the oil line. Therefore, the oil path should be made smooth and eliminate oil leakage. Once air resistance occurs in the oil circuit, immediately stop the cooling, and pull the hand pump to remove the fuel filter and the air in the oil circuit from the exhaust hole so that the oil path is full of fuel.

(8) Prevent oxidation of the circuit

In summer, the temperature is high and the humidity is high. The battery generates hydrogen gas and water vapor during operation. If the vent hole is blocked, it will cause the internal pressure of the battery to rise and cause burst. Therefore, it is necessary to regularly dredge the battery in high temperature and high humidity air. Easily oxidized, resulting in poor contact with the whole vehicle without electricity, startup difficulties, electrical system failure and other failures. Need to remove the wiring from the pole pile, use the emery cloth or saw blade to polish the oxide layer, remove it and install it firmly. To prevent re-oxidation of the pole stakes, grease or Vaseline may be applied after installation to ensure air separation.

(9) Water shortage in batteries during use

In summer, the temperature is high, the moisture in the battery electrolyte evaporates quickly, the liquid level drops quickly, and even the polar plate exposes the liquid surface, causing the battery plate to be vulcanized and damaged. Therefore, the electrolyte should be checked frequently in summer, and the liquid level should be higher than the plate height of 10-15 mm. After adding distilled water several times, the electrolyte density should be checked regularly to keep the battery in a good working condition.

5. How to park correctly when the summer locomotive is not used for a long time

(1) When parking in summer, the oil and dirt on the machine should be cleaned, and the cooling water should be drained. Place it in a ventilated, cool and dry place. The tire pressure should not be too high. Cover the engine with canvas.

(2) Regardless of the season, when the locomotive is parked for a long time, the body should be supported with hard objects as much as possible to make the tires less or no force, and part of the air in the tires is released, and the air pressure is reduced to extend the service life of the tires.

(3) Keep storage batteries well. The battery should be placed in a ventilated, dry, cool place, check and maintain a good working condition of the battery, pay attention to prevent short circuit.

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