Recently, SANY unmanned paving and compacting machine group has been under construction in Section 02 of Xuhuaifu Road for 2 months, with a construction mileage of 40km, providing strong support for the successful implementation of the project. The Xuhuaifu Expressway project is 39.855km long, with a total investment of about 4.873 billion yuan, and the contract amount of Section 02 of Xuhuaifu Road is about 307.9 million yuan. As a technical support unit, SANY has played a key role in intelligent paving and rolling technology. Highlights of unmanned paving and compacting machine group: Reduce on-site personnel by 60%: the paving and compacting operation can be completed automatically without a driver, and one person and one tablet can control multiple devices, which can reduce the number of operators by more than 60%. One-click construction process: collect road data, automatically build models with one click, and start unmanned paving and compacting operation. Increase daily work efficiency by 20%: the machine group is unmanned, reducing operators, and can work for a long time, which can increase daily work efficiency by up to 20%. Up to 15 devices can work together: Through global collaborative scheduling technology, up to 15 unmanned road machines can work together to shorten the construction period. The successful implementation of the Xuhuaifu Road 02 Section Project is another large-scale, long-term practical application of drone swarms by SANY after the Anhui Xuanjing Expressway Project, marking that SANY's drone swarm equipment has entered a new stage in the application of road construction. SANY will continue to deepen its research in the field of intelligent construction technology and continuously launch more advanced, efficient and intelligent construction equipment. SANY road machines will also continue to make new achievements in new development opportunities and create more value for customers.

As a leading enterprise in the road maintenance industry, XCMG has always been at the forefront of the times and is committed to providing a full range of road maintenance equipment and solutions; and has won wide recognition in the market with its outstanding technical strength and product quality. In addition to the core asphalt station products, the peripheral product configuration around the asphalt station is also very complete, covering emulsified asphalt equipment, flexible crushing equipment, warm mix foamed asphalt production equipment, production management system, cold addition system, insulation transport vehicle, etc., providing customers with one-stop professional services. Through continuous technological research and development and innovation, XCMG has successfully developed a variety of advanced asphalt station supporting products to meet the ever-evolving market needs. After years of accumulation, XCMG has gained market recognition with its extraordinary achievements in the field of road maintenance equipment. These products complement each other with asphalt mixing stations, and together constitute XCMG's competitive advantage in the road maintenance industry, which can meet the various needs of customers in maintenance work. The advantages of these products are not only reflected in performance, but also help customers solve various maintenance problems, improve work efficiency and reduce operating costs. XR series emulsified asphalt equipment is widely used in actual projects and can be constructed at room temperature. Compared with hot asphalt and diluted asphalt, emulsified asphalt can save 40%-50% of energy, which can help customers improve construction conditions, reduce project costs, and effectively reduce the problems of excessive aging of asphalt and large-scale volatilization of harmful substances caused by high-temperature heating. It is not only more green and environmentally friendly, but also can further improve construction safety. The flexible crushing equipment adopts a circular vibrating screen, the material running track is elliptical, the projection angle is close to a right angle, and the screening rate is greatly improved; the configured double-toothed roller crusher can achieve flexible crushing, so that the asphalt material is not damaged and the service life is longer. The XFP series warm-mix foamed asphalt production equipment adopts warm-mix foamed asphalt technology and warm-mix recycling technology, which greatly increases the proportion of recycled material addition, reduces fuel consumption and harmful gas emissions, and truly realizes the green and environmental protection of asphalt mixing stations. And its "triple mixing" structure of the foaming tube can achieve efficient and high-quality foaming. The intelligent control system and precise metering system can ensure the accurate and intelligent addition of foaming water, making it more convenient to use. As one of the star products in XCMG's maintenance industry, the XLY245B insulated transport vehicle has a very powerful performance. It solves users' construction problems with super insulation and efficient transportation, which is also the original intention of the birth of XCMG's insulated transport vehicle. It adopts a fully enclosed body, which can reduce temperature loss, effectively prevent segregation problems caused by temperature reduction, ensure that the asphalt mixture arrives at the front site with quality and quantity, and ensure the paving quality of the road. At the same time, the insulated transport vehicle adopts a scraper chain conveyor, with a reasonable rear overhang distance at the discharge port, and is equipped with a leakage prevention device, which can seamlessly connect various pavers to avoid contaminating the road surface. The operation of the asphalt station is also inseparable from the advanced production management system. XCMG's production management system integrates production planning, resource management, quality control, etc., to help enterprises achieve comprehensive monitoring and management of the production process. The full computer intelligent control technology can grasp the equipment status in real time; automatic temperature control, intelligent ventilation, convenient and fast operation; real-time monitoring of real data in all aspects of production and operation, effectively improving management efficiency. XCMG's one-stop solution in the field of pavement maintenance keeps pace with industry trends and market demands, continuously conducts technological innovation and product upgrades, and ensures that it provides customers with more valuable services.

Recently, HANGCHA Group's lithium battery reach stacker has provided efficient and environmentally friendly logistics solutions to the global market. This not only demonstrates the further expansion of HANGCHA Group's presence in the international market, but also reflects the company's continued efforts in the field of new energy logistics equipment. HANGCHA lithium battery reach stacker adopts advanced lithium battery technology, which has the advantages of intelligence, efficiency, energy saving and environmental protection. Its excellent endurance and strong work efficiency significantly reduce customer operating costs. It is suitable for heavy-duty 20-foot and 40-foot ISO containers. It is suitable for container ports, terminals, railway and highway transfer stations, storage yards and other application scenarios that require high-intensity and long-term operations. HANGCHA currently provides a variety of power reach stackers, including high-voltage lithium battery, internal combustion and extended-range hybrid power, to meet the needs and application scenarios of different customers. These products are engineered in functionality and performance to ensure efficient, safe operation under a variety of working conditions. At present, HANGCHA lithium battery reach stacker has successfully entered multiple overseas markets and has been recognized by customers. In the future, HANGCHA will continue to increase its investment in lithium battery technology, and is committed to promoting the concept of green logistics globally and providing more customers with efficient, intelligent, and safe logistics equipment. HANGCHA Group has always been customer-oriented, constantly optimizing product performance and service quality, bringing high-quality experience to global customers, and actively assisting the green transformation and upgrading of the global logistics industry.

In logistics and express delivery, the most common are trucks or vans. A large number of people may confuse trucks and vans, thinking that they are just called differently, but they are actually the same vehicle. In fact, this is not the case. Trucks are not vans, and vans are not trucks. There are differences between them. Although vans and trucks are both cargo vehicles, there are still some small differences. So what are the differences between them? First, a van has four wheels and a load capacity of about 2.5-5 tons. Trucks have 6 wheels, 10 wheels, 12 wheels, 16 wheels, 20 wheels and 22 wheels, with a load capacity ranging from more than ten tons to dozens of tons. Second, a truck has no shed (top cover) and no shelter, so it is not suitable for long-distance transportation of goods. But trucks are generally used for long-distance transportation. Third, the official name of a truck is a cargo vehicle (truck, GOODS VEHICLE), which is a form of vehicle used to transport goods and commodities. A wagon is a commercial vehicle designed and equipped mainly for carrying goods. It can tow a trailer or not. Fourth, trucks also carry goods, which means that trucks can be wagons, but wagons are not necessarily trucks. What do 6x4, 6x2, 8x4, and 4x2 mean in wagons? I believe that many people are confused when they see the data of 6x4, 6x2, and 8x4 when buying wagons. What do these mean? People who don’t understand the meaning of these data probably have a hard time judging which model is suitable for them when buying a car? First of all, we need to understand the drive form. The drive form refers to the layout of the engine and the number and position of the drive wheels. FF is front engine front wheel drive. FR is front engine rear wheel drive. MR is mid-engine rear wheel drive. 4WD is four-wheel drive. AWD is full-time four-wheel drive. Common drive forms of trucks include 4X2, 6X2, 6X4, 8X4, etc. The number before "X" indicates the total number of vehicle wheels, and the number after "X" indicates the number of driving wheels. Double wheels are counted as one wheel, and one axle is counted as two wheels. Divide the two numbers by 2, which is the number of vehicle axles and drive axles. For example, 8X4 means that the vehicle has a total of 4 axles, two of which are drive axles. 4x2 drive form: It is actually a two-axle truck, which is commonly known as a single-axle vehicle. It has a total of 4 wheels, and the 2 wheels on the rear axle are responsible for driving, so it is marked as 4X2. 6X2: Three-axle vehicles are generally divided into two situations. One is that the front axle is a guide axle, the second axle is a suspended axle, and the third axle is a drive axle. The other is that the front axle is a guide axle, the second axle is a follow-up guide axle, and the third axle is a drive axle. The most common domestic drive form is the 6X2 drive form with a double front axle design, while the rear suspended axle design is more commonly used abroad. 6X4: Three-axle vehicle, the front axle is the guide axle, and the two rear axles are drive axles. 8X4: Four-axle vehicle, the front axle is the guide axle, the second axle is the follower guide axle, and the rear double axles are drive axles.

From designing modern electro-hydraulic control systems to adding advanced object detection technology, excavator manufacturers are pushing the boundaries of what these machines can do. Electro-hydraulic control systems improve the precision, safety, and efficiency of construction and earthmoving operations. This sophisticated system uses electrical and hydraulic components to manage the motion and functions of an excavator. Technological advances have revolutionized excavators, transforming them from basic digging tools to multi-functional tools that redefine efficiency, productivity, and safety on the job site. From designing modern electro-hydraulic control systems to adding advanced object detection technology, excavator manufacturers are pushing the boundaries of what these machines can do. As a result, these multi-functional machines have become indispensable. Here are 8 of the latest excavator innovations tailored for the construction industry. 2D systems allow operators to work from point A to point B on a single plane, such as a straight trench. Electro-hydraulic control systems Electro-hydraulic control systems improve the precision, safety, and efficiency of construction and earthmoving operations. This sophisticated system uses electrical and hydraulic components to manage the motion and functions of an excavator. It integrates electronic sensors, controllers, and actuators with traditional hydraulic components to provide more precise and efficient control of the excavator's operations. Electro-hydraulic control systems in excavators can include features such as: Programmable joystick switches for easy operation. Fully electronic joysticks to manage various excavator functions. Swing sensors that measure and monitor the swing motion of the excavator superstructure. Equipped with sensors on the boom, stick, bucket and upper body, including laser catchers, to assist 2D grading systems. Grading Assist Grading assist systems in excavators are used to achieve precise surface grading or leveling. They ensure the desired slope, height and contour of the terrain are up to standard. When the excavator operator activates the grading system, a touchscreen setting enables them to set the assist mode - allowing the computer to assist the operator through audio and visual displays. The operator controls the arm functions while the machine automatically manages the bucket and boom to maintain the desired grade or grade. The touchscreen monitor gives the operator greater control over the direction of travel and more precise settings of the depth, height and grade of the bucket teeth in earthmoving and grading applications. Grading assist systems in excavators are used to achieve precise, accurate surface grading or leveling. 2D Leveling System Like other advanced machine guidance and machine control systems, the 2D Leveling System is a valuable technology. The 2D system allows the operator to work on a single plane, such as a straight trench from point A to point B. By utilizing sensors and controllers, the 2D Leveling System can make real-time adjustments to achieve the exact grade and height required for the job. This eliminates the manual labor involved in traditional leveling methods, increasing productivity by streamlining the leveling process and reducing the time and effort required to complete leveling tasks. The Fine Swing function controls the rotational movement of the excavator superstructure, known as the slewing motion. Fine Swing Function The Fine Swing function controls the rotational movement of the excavator superstructure, known as the swing motion. Activating the Fine Swing function gives the operator greater control when lifting objects and greater precision when placing objects. Additionally, it increases operator safety in certain lifting applications, such as pipe laying, and can prevent objects from falling off the excavator and causing damage. The operator can manually turn this function on or off, giving them control over whether it is enabled. When this feature is enabled, “overspeed” disappears, allowing the excavator to smoothly reach maximum swing speed while eliminating any sudden jolts or shocks. The operator can turn off rotation or slewing, and apply the brakes to prevent material loss in the bucket. Precision technology features like Virtual Wall Settings help operators improve safety and productivity when working in tight spaces. Virtual Wall Settings Precision technology features like Virtual Wall Settings help operators improve safety and productivity when working in tight spaces. Excavators are equipped with GPS receivers or proximity sensors that monitor the machine’s position relative to predefined coordinates or objects on the job site. For example, if there are obstacles on either side of the machine, the operator can set limits to prevent the machine from going beyond those obstacles. They can also adjust the settings for the arm extension and set upper and lower limits. If the excavator approaches the side where the obstacle is located, the system alerts the operator and limits the machine’s movement in the direction of the obstacle. This feature can be overridden at any time. Excavators often lift or hoist objects on the job site, so with Lift Assist, operators can take the guesswork out of the process. Lift Assist Mode Excavators often lift or hoist objects on the job site, so with the Lift Assist feature, operators can take the guesswork out of the process. This feature measures and displays the bucket’s current weight as well as the tipping load as material is loaded, and alerts the operator if the total load weight exceeds the limit. The sensor is accurate to within 3%. This feature can alleviate concerns about the machine tipping over if the object is too heavy, such as large rocks, concrete blocks, and heavy machinery parts. Onboard weighing systems use load cells and sensors to measure the weight of the material and provide real-time feedback to the operator to optimize the loading process. Onboard weighing systems Onboard weighing systems use load cells and sensors to measure the weight of the material and provide real-time feedback to the operator to optimize the loading process. It accurately measures the amount of material loaded into the machine and reduces the number of trips required to move the necessary material. In addition, onboard weighing systems help reduce fuel consumption and equipment wear. It helps companies adhere to weight limits and prevent overloading, which can avoid fines and machine damage. It also provides a safer working environment for operators and others working near the equipment. Depending on the machine, AVM systems can provide up to 360 degrees of visibility through a monitor in the machine’s cab. Around View Monitor Camera Systems Around View Monitor (AVM) camera systems display a panoramic view around the machine, giving operators greater confidence when working in tight conditions. Depending on the machine, AVM systems can provide up to 360 degrees of visibility through a monitor in the machine’s cab. This enables operators to identify potential hazards and obstacles that are not visible from their seat, reducing the risk of accidents and injuries. AVM systems also increase productivity and efficiency by reducing the time operators need to manually check their surroundings. Another key feature on many of today’s excavators is a rearview camera. With a rearview camera, operators can more safely maneuver around any object or person within the camera’s line of sight. The camera feed can be viewed on the cab’s LCD display at the push of a button. Some manufacturers have increased the camera’s field of view or included sensors that alert operators when they are about to hit an object – also known as object detection. Object detection improves safety by increasing awareness and compensating for blind spots. Sensors sound an audible warning to the operator when the machine is about to hit an object. The closer the machine is to an object, the louder or more frequent the sound may be. Excavator technology is becoming smarter, more efficient and more productive than ever before, pushing the boundaries of how construction projects are executed and shaping the future of the industry.

In Southeast Asia, where minerals are abundant, a green revolution is quietly emerging. Dozens of zero-emission XCMG pure electric loaders flexibly shuttle between local mines, drawing a new picture of modern operation that is "efficient, green, and harmonious". The tropical archipelago is hot and rainy, the geological structure is complex and changeable, and the raw ore is corrosive. Whether it is the operating environment or the shoveled materials, it is a challenge different from the past for loaders. From the initial fuel models to the current new energy products, XCMG has customized upgrades for customers. In the past, XCMG fuel vehicles were used a lot and I liked to drive them. Now I have switched to electric ones, and the experience is even better, with simple operation, fast response, low noise, and smooth driving. The work intensity has been reduced a lot. At the construction site, the average daily operating time of XCMG pure electric loaders is more than 20 hours. The whole machine is equipped with dual-gun fast charging. It can be fully charged only during the driver's shift change and rest time, fully ensuring production efficiency. High-quality development, green first Facing the increasingly intensified greenhouse effect, all countries have put energy conservation, emission reduction, and green and sustainable development first. Southeast Asia is located in a tropical and marine climate, and the abnormal climate caused by the greenhouse effect is more significant. Local industries are actively exploring green transformation solutions. The emergence of XCMG pure electric loaders undoubtedly provides a good solution. Among them, the hot-selling XC968-EV pure electric loader is equipped with XCMG's unique "three-motor" gearbox-free technology. On average, each unit can reduce carbon dioxide emissions by more than 150 tons per year, setting a green example. Not only is it environmentally friendly, it also has a lower cost of use, which is only one-fourth of that of fuel-powered models, and it also saves maintenance expenses for engines, gearboxes and other mechanisms, achieving cost reduction and efficiency improvement. While providing customers with excellent products, XCMG focuses more on the aftermarket and provides customers with value-enhancing solutions for the entire life cycle.

All-terrain crane is a lifting equipment that installs the lifting system on a special wheeled chassis, and has the characteristics of both automobile cranes and off-road cranes. It is widely used in large-scale engineering projects such as wind power, petrochemicals, high-speed rail, nuclear power and mining. 1. In the late 1970s, the world's first all-terrain crane was developed and rolled off the production line in Germany, successfully opening up a new field for wheeled cranes. 2. my country's research on all-terrain cranes began in the 1980s. Due to the complex technology and multiple working conditions of all-terrain cranes and the blockade of related foreign technologies, the research and development work progressed slowly. In 2002, my country's first 25-ton all-terrain crane was born in XCMG, conquering the chassis suspension technology in one fell swoop. 3. It was not until 2010 that XCMG launched a 1,200-ton all-terrain crane, which not only broke the technical barriers of international giants, but also made China the third country in the world that can develop and mass-produce 1,000-ton full-terrain cranes. In the future, with the continuous advancement of technology and the continuous expansion of market demand, all-terrain cranes will play an important role in more fields. Schematic diagram of all-terrain crane 1. Hook: The lifting device of the crane. 2. Boom: A steel structure used to support the lifting wire rope and pulley block, usually made of high-strength steel. 3. Turntable: The slewing bearing is connected to the special seat ring of the chassis through high-strength bolts, and can achieve 360° rotation through the slewing mechanism. 4. Chassis: It adopts an off-road chassis with multi-axle drive and full-axle steering, as well as an oil-gas suspension system. 5. Outriggers: Most of them are H-shaped outriggers, while most large-tonnage all-terrain cranes use X-shaped swing outriggers. 6. Frame: It is mostly a multi-box thin shell structure welded from steel plates, with a complex structure. 7. Power system: Provides driving force for the crane. 8. Hydraulic system: Provides power transmission and control, used for the extension and retraction of the boom, the extension and retraction of the outriggers, and the operation of the slewing device. Features 1. Good maneuverability: It provides three steering modes, including front-wheel steering, rear-wheel steering and all-wheel steering, so it has good maneuverability to adapt to different working environments. 2. Good stability: It is usually equipped with an oil-gas suspension system, which can provide better roll stiffness and longitudinal angular stiffness, so that it is more stable during lifting operations. 3. Strong off-road capability: It is usually equipped with multiple drive axles, providing good off-road capability and can operate on rugged or muddy sites. 4. Fast driving speed: It has the ability to transfer quickly, can travel quickly and long distances, and adapt to rapidly changing working environments.

Why can't you increase the throttle when the loader diesel engine is just started? After the loader diesel engine is just started, it should run at a low speed for 3 to 5 minutes. The purpose is: 1. Warm up: let the various parts of the engine body slowly and evenly heat up to reach the normal working temperature, reduce wear and avoid mechanical strain. 2. Ensure lubrication: When the diesel engine is just started, the lubricating oil has high viscosity and the parts are poorly lubricated. After warming up, the lubricating oil gradually reaches the lubrication parts to avoid dry friction and damage to the mating surface. 3. After the diesel engine is just started, the machine temperature is low and the diesel is not completely burned. At this time, if the throttle is increased and the fuel supply is increased, the excess unburned diesel will form carbon deposits, which will aggravate the diesel engine emissions. In addition, the excess diesel may flow into the crankcase along the cylinder wall, affecting the lubrication of the cylinder wall, and diluting the oil in the oil pan, reducing the lubrication performance and reducing the service life of the diesel engine. For diesel engines equipped with exhaust gas turbochargers, more attention should be paid to warming up the engine. If the throttle is increased immediately after starting, the speed of the turbine increases, but the engine oil does not have time to reach the surface of each lubrication part, and good lubrication cannot be formed. It is easy to cause the turbine shaft to get stuck, causing a fault. What are the reasons for the sudden shutdown of the loader diesel engine, and how should it be handled? When the diesel engine suddenly stops while working, do not restart the diesel engine immediately. You should carefully analyze and check the reasons for the sudden shutdown of the diesel engine, and start it again after repair. The main reasons for the sudden shutdown of the loader forklift diesel engine are: 1. The fuel supply system fails and causes a sudden shutdown. This shutdown phenomenon is caused by air entering the diesel engine fuel supply circuit or the interruption of fuel supply. Before the diesel engine suddenly stops, the speed fluctuates and the operation is unstable. The reasons for the interruption of fuel supply are: a. The diesel tank is insufficient and the fuel should be added; b. The oil circuit is not tightly sealed. When this kind of fault occurs, it can be judged by bleeding the fuel system after the shutdown. If a large amount of foamy oil bubbles are released at the bleed screw by pumping oil with a hand oil pump, the engine is shut down due to oil gas in the oil. The sealing of the low-pressure oil circuit should be carefully checked. C. The camshaft of the injection pump is broken or the rolling key is broken, and the connecting plate is broken. The injection pump should be repaired. 2. Sudden shutdown caused by crankshaft locking After the shutdown, observe whether the water temperature is abnormal and whether there is water in the oil pan (the engine oil is emulsified). If the inspection is normal, the diesel engine crankshaft should be turned. If it feels difficult to turn or cannot turn, it can be judged that the bearing is burned or the crankshaft is locked after the bearing is burned. After the failure of burning bearings occurs, the cause should be found, the oil channel should be cleaned, the crankshaft should be ground, the bearings and a few parts (connecting rods, etc.) should be replaced before the machine can be assembled and tested. 3. Sudden shutdown caused by cylinder pulling What are the main causes of early wear of loader diesel engines? Early wear of diesel engine refers to the phenomenon that the diesel engine power drops significantly and fuel consumption increases due to the wear of the main moving parts (such as piston rings, crankshafts, bearings, cylinder liners, etc.) in a short period of use, so that the diesel engine cannot continue to work effectively. The main reasons for early wear of diesel engine are as follows: ① The new engine runs under heavy load without running-in; ② The air filter fails; ③ Improper use and maintenance, poor oil quality; ④ Poor combustion, excessive carbon deposits in the cylinder. What is the cause of cylinder liner strain of loader? How to prevent it? The main manifestations of cylinder liner strain are: knocking sound of piston in cylinder, reduced power of diesel engine, blue or white smoke from oil combustion; thinning of oil, pressure drop, etc. The reasons for cylinder strain are: ① Failure of cooling system, overheating of machine, excessive expansion of piston after heating. ② Insufficient oil, deterioration or impurities in oil, causing poor lubrication. ③ The gap between the piston and the cylinder wall is too small (mostly seen in new engines or diesel engines that have just been overhauled). ④ The piston ring is broken or stuck. ⑤ The piston pin retaining ring fails, causing the piston pin to move. What are the measures to reduce the wear of the loader cylinder liner? In addition to taking anti-corrosion and wear-resistant measures in design and manufacturing to reduce the wear of the cylinder liner, the following points should also be noted in the use and maintenance projects: ⑴ Correct starting and starting After starting the cold engine, it should be warmed up for 3 to 5 minutes under a small throttle state before starting the vehicle. When running at first, it should work at a low load for a period of time, and then work at a high load after the temperature rises. ⑵ Maintain the normal temperature of the engine If the diesel engine temperature is too low, it cannot maintain good lubrication, which will increase the friction of the cylinder wall; if the temperature is too high, the cylinder strength will be reduced and the wear will be aggravated, and the piston may even expand excessively and cause a "cylinder pull" accident. The normal operating temperature of the diesel engine is 80℃~90℃. When it exceeds 95℃, the load should be reduced or the engine should be shut down for cooling. ⑶ Maintain good lubrication Frequently check and maintain the engine oil quality and oil level, change regularly and select the appropriate viscosity engine oil according to the season to ensure good lubrication. ⑷ Strengthen the maintenance of the "three filters" (air filter, oil filter and diesel filter) This is the main measure to prevent mechanical impurities from entering the cylinder, reduce cylinder wall wear and extend the service life of the engine, which is especially important for loader diesel engines that are often in high dust content. ⑸ Improve maintenance and repair quality Strictly perform maintenance and repair operations in accordance with the technical standards specified in the diesel engine maintenance manual. Adjust and control each matching clearance (opening clearance) to prevent the wear between the piston and the cylinder wall from being accelerated due to improper maintenance and maintenance. What are the reasons for the frequent flushing of the cylinder gasket of the loader diesel engine? The cylinder gasket is burned by the high-temperature gas in the cylinder, which is called "flush cylinder gasket", also known as "burned cylinder gasket". After flushing the cylinder gasket of the diesel engine, abnormal phenomena such as "bubbling" of the water tank, water inflow of the oil pan, emulsification of the engine oil, and drainage of the exhaust pipe (white smoke) will generally occur. The main reasons for the cylinder gasket are: ⑴ Cylinder head deformation The cylinder head is thermally deformed due to the alternating effects of high temperature and high pressure gas for a long time; improper disassembly (not disassembling in sequence) will also cause deformation. After the cylinder head is deformed, the raised part cannot press the cylinder gasket tightly, causing high temperature gas leakage and burning of the cylinder gasket. ⑵ The height of the cylinder liner boss is different, causing individual cylinders to be poorly sealed. In order to make the cylinder liner and cylinder gasket pressed tightly on the cylinder body and maintain good sealing, it is generally required that the cylinder liner end face boss plane is higher than the cylinder body by a certain size (generally 0.05~0.12mm), and the difference in the protrusion of the cylinder liner of the same diesel engine (or two cylinders under the same cylinder head) is also specified (generally 0.05mm). If it exceeds the specified value, it may cause insufficient sealing pressure, causing high pressure and high temperature gas to burst out and damage the cylinder gasket. ⑶ The cylinder head bolts are loose or the tightening torque is insufficient. When the diesel engine leaves the factory, the manufacturer provides a maintenance manual with clear requirements for the torque of the cylinder head fastening bolts. During maintenance, the cylinder head should be tightened strictly according to the specified time and method. ⑷ The cylinder gasket assembly method is incorrect or the cylinder gasket is of poor quality. ⑸ The machine is not working properly and overheating causes the cylinder gasket to be punched. What are the reasons for the increase in the oil level of the loader diesel engine oil pan? How to eliminate it? The increase in the oil level of the diesel engine oil pan is caused by the entry of diesel or water into the oil pan. The increase in the oil level of some diesel engines without crankshaft rear skeleton oil seals may also be due to the entry of hydraulic transmission oil into the oil pan. The entry of diesel into the engine oil will reduce the viscosity of the engine oil, deteriorate the engine oil, and cause the relative motion surfaces to fail to form an oil film and aggravate the wear. The entry of water into the engine oil will emulsify the engine oil and lose its lubricating effect. Therefore, once the oil level in the oil pan is found to be rising, the engine should be stopped for inspection, troubleshooting, and oil replacement before operation. The main reasons for the rise in the oil level in the oil pan are: 1. A cylinder (or several cylinders) of the diesel engine is not working or working poorly Because the injector needle valve is stuck in the open state or the injection pressure is low, it causes poor atomization, so that the diesel injected into the cylinder cannot completely form a mixture and burn, but flows into the oil pan from the piston ring, cylinder liner and piston side, causing the oil level in the oil pan to rise. In this case, the "cylinder disconnection method" can be used to find which cylinder or cylinders are not working or working poorly, find out the fault and eliminate it. If necessary, the injector can be tested. 2. Water in the oil pan causes the oil level to rise After water enters the oil pan, the engine oil will emulsify. The main reasons for water in the oil pan are: ① The cylinder gasket is burned and leaks. If you check the water tank at this time, you will find that there are "bubbling" and "boiling" phenomena in the water tank. You should check and replace the cylinder gasket; ② Cracks in the cylinder liner cause cooling water to penetrate into the cylinder and flow into the oil pan. The cylinder liner should be replaced. In this case, the water tank will also "bubble" and "boil". Especially in winter, the phenomenon of cylinder cracking due to "sudden cooling" is more common; ③ The cylinder liner water block ring fails and leaks. The water block ring should be replaced. In this case, there is no bubbling in the water tank. 3. For some diesel engines, due to damage to the rear crankshaft oil seal (or not a skeleton oil seal), if the torque converter leaks seriously, the hydraulic transmission oil will leak into the oil pan, causing the oil level to rise. At this time, there is no diesel smell in the engine oil, and it is not emulsified. The torque converter should be repaired. Why is there oil in the water tank of the loader diesel engine? When checking the water level of the diesel engine radiator (water tank), if the cause is found in the water tank, start the diesel engine after eliminating the fault. There are two situations that may cause oil in the water tank: 1. The diesel engine oil cooler (water cooler) is frozen and cracked, the water cooler core is cracked, and the sealing gasket (ring) is damaged, causing the oil to leak into the cooling system, resulting in oil entering the water tank. The oil cooler should be opened for inspection. If the oil cooler is frozen and cracked, it is generally accompanied by low oil pressure. 2. The hydraulic transmission oil-water cooler is poorly sealed or frozen and cracked, resulting in oil in the water tank. The hydraulic transmission oil-water cooler should be disassembled and inspected. In order to prevent the water cooler from freezing and cracking, when using the diesel engine in cold seasons, do not forget to drain the water in the diesel engine oil cooler and the hydraulic transmission oil-water cooler. What are the ways to extend the service life of diesel engine oil for loaders? 1. Maintain the oil filter on time; 2. Prevent fuel from entering the diesel engine oil pan; 3. Keep the diesel engine oil pan and valve cover relatively closed to prevent debris from invading the oil; 4. Select the appropriate brand of oil as required; 5. Change the oil regularly as required. When changing the oil, drain the oil while it is hot after stopping the engine, and thoroughly clean the oil pan to prevent the remaining waste oil from mixing with the new oil and corroding the new oil. 6. Maintain the normal operating temperature of the diesel engine. The normal operating temperature of the diesel engine is 80℃～90℃. Too high temperature will make the oil thinner, accelerate the oxidation and deterioration of the oil, and reduce the lubricating effect of the oil. If the temperature is too low, the diesel will not be fully burned, and part of the oil gas will condense into liquid and flow into the oil pan along the cylinder wall to dilute the oil. What are the reasons for the wandering of the loader diesel engine? When the diesel engine is running, the speed changes periodically from high to low in a large range, which is called "wandering". There are many kinds of "wandering" phenomena. Sometimes the accelerator pedal wanders at a certain position, sometimes it wanders at idle, and sometimes it wanders under a certain load. The essence of wandering is that the normal speed regulation function of the diesel engine is destroyed. Usually, the resistance of the moving parts in the fuel injection pump components (such as the rack) or the speed governor is too large, which reduces the sensitivity of the speed governor and causes wandering; the clearance of the internal parts of the fuel injection pump or the speed governor is too large, which makes the change of the fuel supply lag behind the speed change too much and may also cause wandering; the wandering phenomenon may also be caused by oil circuit failure, mainly: 1. The low-pressure oil circuit is blocked, the oil supply is not smooth, and the continuity of the oil supply is destroyed; 2. The oil supply oil circuit is inhaled; 3. The injector is poorly atomized or stuck, which makes the cylinders work unevenly and wander. When checking the cause of the wandering failure, you should first check the oil circuit failure. If there is no fault in the oil circuit, then repair the fuel injection pump speed governor and verify the fuel injection pump. It should be noted that the hunting at idle speed is related to the following factors in addition to the above reasons: a. The injector works poorly at low speed, mainly because the injector is worn or the manufacturing quality is poor, which leads to no atomization or oil dripping at low speed, but works normally at medium and high speed. b. The injection pump does not supply enough oil at idle speed. After the idle oil volume is increased, the hunting disappears; c. The idle limit screw is improperly adjusted, resulting in idle hunting. The idle limit screw should be adjusted.

Crane refers to a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called overhead crane, overhead crane, and crane. There are many brands of cranes, and the following are the famous ones. XCMG Founded in 1989, it is a world-renowned engineering machinery brand that integrates R&D, production and sales, and mainly promotes mechanical products such as cranes/shovel loaders/excavators/concrete machinery. In the 1940s, bathed in the flames of the Anti-Japanese War, XCMG, which originated from three major factories, started a struggle with the Republic of China. In 1989, XCMG Group was formally established. XCMG Group has always maintained its leading position in China's engineering machinery industry. It is a large-scale enterprise group with a large scale, complete product varieties and series, unique competitiveness and influence in China's engineering machinery industry. ZOOMLION Founded in 1992, it is a well-known brand in the global high-end equipment industry, an early A+H-share listed company, and an equipment manufacturing enterprise integrating engineering machinery, agricultural machinery and financial services. After more than 20 years of innovation and development, ZOOMLION has gradually grown into a global enterprise, with leading products covering 10 categories, 55 product series, and more than 460 varieties. ZOOMLION has been listed in Shenzhen and Hong Kong, becoming one of the earliest A+H-share listed companies in the industry. At present, the company is actively promoting strategic transformation to build an equipment manufacturing enterprise integrating engineering machinery, agricultural machinery and financial services. SANY Heavy Industry Founded in 1989, it is an equipment manufacturing industry with engineering as its theme. Its leading products are concrete machinery/excavators/hoisting machinery/road construction machinery/pile machinery/wind power equipment/port machinery and other products. SANY has always adhered to the vision of "creating first-class enterprises, cultivating first-class talents, and making first-class contributions" and has created the well-known "SANY" brand. The main business of SANY Group is the equipment manufacturing industry with "engineering" as its theme. Its leading products are a full range of products such as concrete machinery, excavators, hoisting machinery, road construction machinery, pile machinery, wind power equipment, port machinery, petroleum equipment, coal equipment, precision machine tools, etc. Among them, excavators, pile machinery, crawler hoisting machinery, mobile port machinery, road machinery, and coal tunneling machinery are mainstream brands in China; concrete machinery is a global brand. LIUGONG Founded in 1958, LIUGONG is a well-known brand in the domestic construction machinery industry under the LIUGONG Group, known for its loader/excavator series of construction machinery. Starting from the launch of modern wheel loaders in 1966, through continuous efforts and innovation, LIUGONG has now grown into a company with 19 different product lines. As one of the companies in the industry with a complete global distribution network, LIUGONG has more than 300 dealers in more than 100 countries, providing convenient and professional service support to global customers at any time.

With the approaching of summer, high temperature weather poses a severe challenge to the lodering water tank system of all kinds of mechanical equipment. As the core component of the equipment cooling system, the running state of the lodering water tank directly affects the overall performance and life of the equipment. To this end, we have compiled a series of strategies for efficient maintenance of lodering water tanks, aiming to help the majority of users to better protect the lodering water tank, prevent the adverse effects of high temperature, and ensure that the equipment can still work stably in high temperature seasons. 1. Fine cleaning of heat sink to ensure heat dissipation efficiency In the face of high temperature environment, the heat sink outside the lodering water tank is easy to accumulate dust or plug, which affects the heat dissipation effect. Therefore, it is essential to clean the heat sink regularly. It is recommended to use water flow with moderate pressure for washing, and pay attention to control the water pressure to avoid damage to the heat sink structure. When cleaning, it should be ensured that the front and back of the heat sink are thoroughly cleaned around, in order to improve the heat dissipation efficiency and reduce the temperature of the lodering water tank.   2. scientific water change and filling antifreeze, prolong the life of the lodering water tank In order to completely remove the impurities and scale accumulated inside the tank, it is recommended to use the cyclic water change method. Firstly, the loader is started for about 5 minutes, and when the water temperature rises to about 30 degrees, it is turned off and the water in the tank is discharged. Repeat this process several times until the discharged water becomes clear. It is worth noting that after cleaning, do not directly add water to the tank, but should be filled with high quality antifreeze. Antifreeze can not only effectively prevent the tank from freezing in winter, but also inhibit scale generation and improve cooling effect in summer, so as to extend the service life of the lodering water tank and the entire cooling system.   3. safe operation, to prevent the risk of scald It is strictly forbidden to open the lodering water tank cover after the loader is normally used and stopped. Due to the accumulation of a large number of high temperature steam in the lodering water tank, rashly opening the lodering water tank cover is easy to cause burns. Therefore, the operator must strictly follow the safety protocol to ensure that any maintenance operation is performed after the equipment has been completely cooled.   4. adhere to the use of antifreeze, prevent scale blockage Stress that the tank must be filled with antifreeze rather than ordinary water. Ordinary water is easy to evaporate and easy to produce scale at high temperature, which will block the water pipe and lodering water tank pipeline, affect the circulation of coolant, and then lead to high temperature failure. The antifreeze can effectively prevent such problems, ensure the smooth operation of the cooling system, and provide continuous and stable cooling protection for the equipment. In summary, through fine cleaning of heat sinks, scientific water change and filling of antifreeze, safe operation and persistent use of antifreeze and other measures, we can effectively deal with the challenge of summer high temperature on the lodering water tank and equipment, and ensure that the equipment can still be efficient and stable operation in the high temperature season. I hope that the majority of users can pay attention to the daily maintenance of the lodering water tank, and lay a solid foundation for the long-term healthy operation of the equipment.

In cold weather, starting the engine often encounters various situations. In order to ensure the normal starting of the engine, I will give the following three suggestions. 1.Choose the right gasoline Firstly, due to the difference in gasoline vapor pressure (RVP), the gasoline's evaporation (vaporization ability) will weaken in winter due to the low temperature. Therefore, low-vapor pressure gasoline (62KPa) should be supplied in summer, while high-vapor pressure gasoline (69KPa) should be supplied in winter. These winter gasoline can improve the engine's starting performance in winter.   Secondly, we should choose the regular gas stations (such as Sinopec and PetroChina) that supply winter gasoline, fresh 92# (or above) ethanol-free gasoline. The reason we don't use ethanol gasoline is that ethanol gasoline is easy to absorb water vapor from the air over time. In low temperatures, the water vapor will produce ice in the carburetor, causing the gasoline engine to fail to start.   2.Choose the right engine oil In low temperatures, engine oil will become thick and unable to flow smoothly, and some may even stop flowing completely. The suitable ambient temperature for different oil brands is different. The average annual temperature in most areas of our country is between -18°C and 40°C. Generally speaking, for four-stroke air-cooled gasoline engines, choosing a well-known brand of winter and summer-universal oil 10W-30 (or 10W-40) with a grade of SF or above is enough. API grade (e.g. SJ) indicates the quality grade of engine oil. The "S" series represents gasoline engine oil, with specifications such as SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, SN, etc. It is worth noting that gasoline engine oil and diesel engine oil cannot be mixed. The "C" series represents diesel engine oil. From "SA" to "SN", the later the letter, the higher the quality grade. Each increase in the letter means that the oil's performance is better than the previous one, with more additives used to protect the engine.   3.Proper operation Close the choke and start the engine with the air intake closed. At low temperatures and before the engine starts, the fuel system cannot effectively vaporize the gasoline, and it is difficult to start the engine with the gasoline in liquid form. In this case, the choke helps by preventing some air from entering the cylinder to increase the gasoline-to-air mixture ratio and raise the engine speed to prevent the engine from stalling.   After the engine reaches normal operating temperature, restore the choke to its normal position. After starting, be sure to fully open the choke, otherwise, the engine may suffer from excessive air-fuel mixture ratio, incomplete combustion, black smoke, power loss, and carbon buildup. For engines with a starter motor, it is important to ensure that the battery is fully charged, as the battery's chemical activity decreases in low temperatures, and the flow of electrons is less active, resulting in a reduced actual discharge capacity. This will cause the starter battery to not provide enough voltage and power to start the engine. Therefore, it is easy to experience a dead battery at the time of starting. If you find that the battery is dead, you should charge it immediately or replace it with a new one.

Check before leaving the car 1. Check whether the wiper and the whole car lighting are normal; 2. Check whether the trachea has air leakage, bending, etc., and check the status of the valve parts; 3. Check the return position of the system pedal, whether the brake runs off or not, and confirm that the main brake, parking brake, and auxiliary brake work normally; 4. Check whether the steering system has oil leakage, the left and right steering Angle is balanced, and there is no interference between the steering power cylinder and the tie rod. Precautions for vehicle operation 1. Do not get too close to the slope when the vehicle is running to avoid the damage of vehicles and personnel caused by landslides; 2. Do not brake sharply to avoid deviation and sideslip of the vehicle due to changes in braking torque; 3. Do not turn quickly to avoid excessive steering or sideslip due to changes in adhesion; 4. In the rainy season, the road is slippery or the line of sight is bad, should appropriately reduce the speed, do not overspend; 5. When the the vehicle goes up and down the slope, pay close attention to the situation of the preceding vehicle and the distance between the two workshops is at least 50 meters above; 6. When the vehicle turns, observe the target direction and turn on the turn signal in advance to slow down, and observe the situation of other vehicles behind with the rearview mirror; 7. The driver shall investigate the wading road, understand the condition of the road, and the depth of the wading, and drive slowly. Pay attention to equipment storage and parking 1. Check whether there are any obstructions (such as high-voltage lines) around and above the vehicle, and choose a safe place to park; 2. After the car stops, the variable speed lever should be placed in neutral, the parking brake the valve should be pulled to the parking position, and then the clutch pedal should be lifted; 3. Before flameout, it should idle for 3-5 minutes, and then flameout after the engine cooling down. (Avoid burn-out or wear of the supercharger, and oil leakage); 4. After the rainy season operation, pay attention to check whether there is leakage of the pipe joints and whether the electrical appliances are used normally; 5. When parked in the open air, pay attention to whether the fuel tank cover is tight to avoid equipment failure caused by water intake of the fuel tank.