How to maintenance your mini excavator?

Do you know how to maintenance your mini excavator by yourself?

After view this video you can do by yourself:

Select a bucket with right capacity for your excavator

Large-sized hydraulic excavators are frequently used for the unloading work in the quarry project. Actually, this machine is of great significance for the whole pace of the project. Choosing the right bucket and teeth at the end of the stick will not only be helpful to reduce the operation costs, but also improve the productivity, probably more than you think.

Capacity is the main factors in bucket selection. To have a right capacity bucket, you need consider beforehand the machine lifting and breakout capabilities, material density and also the truck match. Machine capacity means how much lifting force the machine has for the bucket and payload at a given reach. Material density tells you the weight of a bucket load at ideal 100-percent fill conditions. The rock and stone fill is an exception, and usually, we estimate a 90 percent fill factors or less for shot rock.

At last, but not least, is the truck match, which actually is a prerequisite factor to think about in deciding the size of the bucket. Generally speaking, four or five passes is a perfect match for a large excavator in the 75-100 ton size. But if you need faster loading speed, you need think again the size and configuration of the bucket. It’s worth mentioning that a bigger bucket doesn’t always reduce loading time, since it may lead to less flexibility in digging and the resulting less production gain.

Visit our website: http://sep9.cn/jxsduk

Why Sany becomes the world-leading construction machinery manufacturer?

As the world-leading construction machinery manufacturer, Sany possesses a versatile product line, which includes hydraulic excavators, hoisting cranes, concrete machinery, road machinery, piling machinery, mining machinery, port machinery, and wind turbine generators. All of these products are exported in batches to more than 120 countries and regions around the world. The hydraulic excavators, large-tonnage cranes, mining machinery, road machinery, piling machinery, port machinery and wind equipment rank NO.1 in China. And the concrete machinery ranks No.1 in the world.  

Believing that service creates value, Sany attaches great importance to service. Full sets of solutions are provided for each customer including machine assembling, operation training, financing service and maintenance support. The on-site training can ensure the customers understand the latest innovations in design and performance as well as learn the knowledge of equipment operations. In additions, Sany established service network all over the world to provide after-sales support for customers and the maintenance technicians are ready to provide service at any time. The ECC, enterprise control center realizes real-time monitoring to the equipment dynamics, through which the breakdown can be examined timely and removed in long distance.

Holding the mission of quality changes the world, Sany puts 5%-7% of annual sales revenue into research and development, realizing the purpose of manufacturing products with the first-class standard and creating the maximum benefits for customers. At present, Sany possesses scientific research institutions in China and four overseas R & D bases abroad including India, America, Germany and Brazil, through which tailor-made products and services can be delivered for customers. Committing to be the top-class construction machinery manufacturer, Sany will spare no effort to produce high-quality products and deliver perfect service for customers all over the world.

Excavator used in Land and Water

As the world leading construction machine manufacturer, Sany produces excavator with advanced technology and super design, which can be used in the toughest working environment. Sany digger adopts Dynamic Optimized Matching Control System, short for DOMCS, which injects new technology into power system, control system, hydraulic system and structural parts. The new technology makes great breakthrough in improving working efficiency, reliability and reducing fuel consumption, thus making the machine possess the features of high durability, high efficiency, long service life and strong adaptability.

Generally, excavators are used in the land, but with excellent research and development ability, Sany manufactured one that also can be used in the water. Refitted from the crawler digger, the amphibian excavator can be used in land, shallow waters and deep waters, which expands digger’s working range to aerostation and dredging. This refitted digger uses crawler belt with double-boat form buoyancy tank structure and sealed crawler board in box shape, ensuring stability and safety working in water. The strengthened working devices and swift rotary structure improves working quality and efficiency. The spacious cab with humanized and practical interior accessories provides the operator a safe and comfortable operating experience. 

The amphibian excavator can be used in resource development and environment renovation like improvement in rivers, lakes and seas, which not only save human labor but also improve working efficiency. Committing to making more contributions to social development and creating the maximum benefits for customers, SANY will manufacture more innovative products in the future. 

excavator for sale

Which company is the world-leading construction machinery manufacturer?

As the world-leading construction machinery manufacturer, Sany possesses a versatile product line, which includes hydraulic excavators, hoisting cranes, concrete machinery, road machinery, piling machinery, mining machinery, port machinery, and wind turbine generators. All of these products are exported in batches to more than 120 countries and regions around the world. The hydraulic excavators, large-tonnage cranes, mining machinery, road machinery, piling machinery, port machinery and wind equipment rank NO.1 in China. And the concrete machinery ranks No.1 in the world.

Believing that service creates value, Sany attaches great importance to service. Full sets of solutions are provided for each customer including machine assembling, operation training, excavator financing service and maintenance support. The on-site training can ensure the customers understand the latest innovations in design and performance as well as learn the knowledge of equipment operations. In additions, Sany established service network all over the world to provide after-sales support for customers and the maintenance technicians are ready to provide service at any time. The ECC, enterprise control center realizes real-time monitoring to the equipment dynamics, through which the breakdown can be examined timely and removed in long distance.

Holding the mission of quality changes the world, Sany puts 5%-7% of annual sales revenue into research and development, realizing the purpose of manufacturing products with the first-class standard and creating the maximum benefits for customers. At present, Sany possesses scientific research institutions in China and four overseas R & D bases abroad including India, America, Germany and Brazil, through which tailor-made products and services can be delivered for customers. Committing to be the top-class construction machinery manufacturer, Sany will spare no effort to produce high-quality products and deliver perfect service for customers all over the world.

Check video of construction machinery:

8 Tonne Excavator Testing: http://www.sany.in/video/120.html

Indian 22 Ton Excavator SY220C-9 Works in The Quarry : http://www.sany.in/video/100.html

Sany Large Excavator Working for Mining Project

With the fast development of mine construction, the demand for large excavator has become larger and larger. Focused on improving self-innovation and R&D capability, Sany has been in the leading position of excavator manufacturing and sales for many years. With excellent performance and super design, Sany diggers are well-received both in China and abroad.

Specially designed for mineral construction, Sany hydraulic excavator is improved in many aspects. The broadened and lengthened chain board, the strengthened X frame and the enhanced jibs greatly improve the machine’s safety and reliability. Equipped with reliable engine and hydraulic control system, the large excavator has the features of high efficiency and low fuel consumption. The board under the bucket rod is strengthened, which not only highly extends the rod’s service life but also improves the machine’s digging force. What is more, the bucket rod adopts advanced robot automatic welding and online examining technology, making the welding level reach the first-class standard in China. What is more, the heavy-duty chassis system greatly enhances its stability.

The excellent performance in controllability, stability, durability and digging force not only make the large excavator become the best digging tool in mine construction but also make it stable and reliable enough to create the maximum profits for customers. Winning high recognition from customers, Sany large digger possesses an increasing market share since its launch and is entitled with “the fighter of the mine”. 

View Video of excavator: 

Sany 22 Ton Excavator SY220C-9 Works in The Quarry:

 http://www.sany.in/video/100.html

Sany 48 Ton Excavator SY480 in Action: 

http://www.sany.in/video/2.html

Excavator Operating Techniques

When operating excavator, we should pay attentions to the around environment like the barriers and terrains. Pay attentions to the crawler belt to avoid collision or tipping over. Make both of the crawler belts completely touch with the ground to improve stability. The digging power is the maximum when the angle between the bucket cylinder and the rod is 90°. The cutting power is the best when the angle between the bucket teeth and the ground is 30°. The bucket rod working angle should be kept between 45°in the front and 30°in the back. And it can improve the digging efficiency when use the arm and the bucket at the same time. excavator for sale.

The large and hard rocks will damage the bucket, so some techniques should be mastered when digging in the complicated terrains. The machine body should be positioned towards the cracks of the rocks and make sure that the bucket teeth can easily insert the cracks. Only when the rocks are crashed can the excavator starts to dig. When leveling the slope, the excavators should be positioned stable and balanced. And the arm movement should be accordance with the rod movement, which is very important for the slope leveling.

When it refers to loading and unloading, good cooperation between the truck and the digger is very important, which means that the two machines should make consistent action. Both of the machines should be kept stable, otherwise, it will be hard to control the rotation and extend the working time. The hydraulic excavator should keep proper distance with the truck to avoid any collisions during the working process. Generally, the truck should be positioned lower than the digger, which can shorten the arm lifting time and provide a good vision for the operator. According to the loading experience, the sand and rubbles should be loaded before loading the big rocks, which can effectively reduce the collision to the carriage.

Sany Large Excavator is good or not, customer has the final say

Sany large excavator is built to be the best digging tool used in the toughest working environment with high efficiency and low fuel consumption. In order to keep its advantages and make more developments, Sany puts 5%-7% of annual sales into research and development, committing to promote innovations and create the maximum benefits for customers. Everything comes from customers and everything is for customers, customer is the driving force for continuous innovation and development. Whether the machine is good or not, customer has the final say.

Mr Xu is an old customer of Sany and he is very popular recently because of a video that has very high clicks on the internet. This video shows a heavy excavator working in highway construction where the large digger completes comprehensive working including earthwork digging, shale hooking and rock crushing with excellent performance in the very complicated terrain. Mr Xu is the owner of that digger and he owned 40 units of Sany equipment in total. Since the year of 2008, he has cooperated with Sany for nearly 10 years.

Speaking of that large excavator, Mr Xu is very proud and talks a lot. The machine consumes lower fuel oil and has great digging capacity. The super design with reliable components makes very coordinate movement, which creates an easy operating experience for the drivers. The fast and brisk machine movement greatly reduces the operator’s fatigue, most of who has lumbar muscle degeneration and slipped discs. What is more, Sany provides considerate after-sales service and removes worries for customers in every aspect.

know more about excavator: Sany 45 Ton Excavator, the King of Mine

Sany Truck Crane Engineer is Always Ready

As the world leading truck crane manufacturer, Sany produces advanced products with high quality and low cost. With the slogan that everything is for customer and everything comes from customer, Sany commits to making the maximum profit and proving incomparable service for customers. There are a group of people from Sany who stand on their position for 24 hours every day to be ready for reaching the customer as soon as possible, they are the international service engineers.

Mr Liu is a crane engineer, who has been in his position for nearly 20 years. He puts customers’ benefits in the first place and provides considerate service for each customer. In the past years, Mr Liu’s life schedule was simple and clear, which can be divided into three parts, waiting for calling, on the way to the customer and getting back from the customer. When asked his feelings about his work, Mr Liu says because he loves his work and feels that he is realizing his value when helping the customer solve problems. With skilled truck crane maintenance technique and rich working experience, Mr Liu is very welcomed by the customers, who think that there are no problems that Mr Liu could not solve.

There are many service engineers like Mr Liu at SANY, all of who commits themselves to their work in order to make the maximum benefits for customers. Some of them are very young but they are glad to stay in the work site to provide the best service for clients and pass their enthusiasm to the people around. Earnest, sincere, industrious and persistent, truck crane engineers are always ready for new challenges.

Excavator Maintenance in Plateau

The excavator working in Plateau may go wrong because of the extreme environment. Only knowing the reasons can we solve the problem to reduce the machine downtime and make the maximum productivity. With high altitude and low air pressure, the boiling point of the coolant decreases about 10℃ when the altitude increases 1000 meters, the boiling point decreases to 90℃ when the altitude is over 4000 meters. The decline of the coolant boiling point will cause the engine “boiling” and block the fuel pipe, making the engine be short of fuel supply and power declining. The oxygen is rare in the plateau, which is 90% of the plain. And the oxygen declines 10% as the altitude increases per 1000 meters. The declining oxygen results in heavy air mixture which can’t be sufficiently burned and makes engine produce dark smoke and reduce the power.

The roads in the plateau is rugged and steep, so the excavator needs to frequently change the driving power and speed to adapt to satisfy the complicated road conditions, which will lead to clutch separation and increase abrasion. The long and steep slopes increase the tractive resistance and make the clutch bearing overload, which may damage the clutch. And driving in the plateau needs super operating skills, otherwise, accidents may happen. Frequent braking will increase abrasion and cause damage to the machine.

In order to achieve excellent performance, the hydraulic excavator needs to be maintained regularly. The fuel oil should be used as specified. The parts should be checked to make sure the engine power is set as specified. Pay more attentions to brake and rotate system, which bears more loads to keep safe and reliable.

Excavator Sales Continues to Increase in 2017

Excavator sales volume continues to increase in January 2017, following the increasing trend of 2016. It is reported that China digger sales increases by 50% in January 2017, and Sany digger sales increases by 70%. In December 2016, China digger sales increase 75%, 15% exceeding the expectation. In the whole year of 2016, the industry sold 70320 units of digger, 11354 units more than 2015, which shows the symbol that the industry turns up from the downturn. Sany Heavy Industry, the leading construction machinery manufacturer, ranked No.1 in heavy excavator sales in 2016 and was the only enterprise that sold more than 10,000 units of excavators in China. 

In the year of 2016, Sany exports 2823 units of diggers, ranking No.1 in the industry. The reasons that Sany achieving such achievement lie in product structure adjustment and technology upgrade. The advanced technology plays an important role in Sany product manufacturing and development, which reaches world-class level. There are some reasons that make the whole digger industry rising.

With the demand for house building increasing, the need for construction excavator increases too. The new model replacing the old one is also one reason for the sales volume increasing. Generally, the service life for the construction machines is 8-10 years, so the machine bought in the year of 2008 and 2009 reached the time to be replaced. According to the market investigation, most of the used diggers have been running more than 10,000 hours, also should be updated. And some major infrastructure constructions like railway construction, city traffic construction, airport construction and new energy development increase the demand for the digging machines and promote the whole industry develop rapidly.

Excavator Examination before Working

Chinese Spring Festival comes to an end, people starts to return to work. Some people may have a body examination before working in order to keep a good physical and mental condition to make an excellent performance in a new year. That is the same rule for the excavator, which needs to be carefully checked after being idle for a long time in order to create the maximum productivity. Generally, there are three steps to go for a careful examination.

First, examination should be made before starting the machine. Check the fuel oil level and discharge the waste and water from the fuel tank. Check the engine oil level and quality. Check the hydraulic oil level and quality. Check the reduction gears and coolant to avoid any cracks and leakage. Check the lubrication conditions of the joint parts, add the lubricant if necessary. Keep the crawler belt and bolts in joint parts tight. Ensure the meters show accurate data. Second, examination during operation, preheat the hydraulic excavator with the temperature below 3℃ for several minutes. Set the machine in idle running for 5 to 10 minutes with no load to make the hydraulic oil temperature reach 40℃. In the cold days, rotate the upper body of the machine to 90°, then hold up the crawler belt to make it rotate for several circles to cast off the dirt.

Finally, check the ambient. Safety signs should be set in the entrance and surrounding of the machine parking place to avoid any dangers. The parking ground should be hard, flat and spacious enough for evacuation under emergency circumstance. The comprehensive examination can inject power to the excavator to make it create the maximum productivity and reduce the construction risk to the minimum at the same time.

Know more details： www.sany.in

How to Choose Used Excavator?

Plans should be made in advance when buying used excavator. The machine model should be chosen according to the project scale, there are small digger, medium excavator and large excavator in the digger market. We can tell the machine’s approximate service life from the machine’s appearance which can give you a first impression. Generally, the color will be relatively bright for an excavator working in the plain within 5 years

Careful check should be made during the choosing process since the second-hand excavator may have some problems. Different with the new machine, the used one works with lower speed when it bears full load. The engine stops before the joystick turning back to the original position. The electromagnetic system is in abnormal condition and the working device stops working. The used excavator may produce big noise or make poor performance in micro movement. The bucket moves slowly and the working device are stagnant. These problems should be recorded, which is very important for choosing the second-hand machine. What is more, check the hydraulic system to see whether it can work normally and examine the engine through its rotary sound and emission to tell whether it is capable enough to bear the required work load.

The second-hand machine may have a lower price but also may have some problems in performance. Therefore, more attentions should be paid when choosing the used machine to avoid paying more maintenance cost. Anyway, you can get the best used hydraulic excavator as long as you make comprehensive plan in advance and pay enough effort for it.

 related article:  Excavator Road Building on Hills

Applications of Compact Excavator

With the demand for infrastructure construction increasing and the manufacturing techniques improving, compact excavator has wider applications and becomes a common sight in the construction site. The small digger can be widely used in house building, railway construction, port application, mine exploring and other engineer constructions for digging, trenching, grading and more.

As the world-leading construction machinery manufacturer, Sany produces advanced products with top quality, ease of operation, high flexibility, low fuel consumption and considerate service delivery. Sany compact excavator is reliable enough to handle various constructions in different climate, terrains and working conditions, its powerful working capability wins high recognition from the customers all over the world.

With the demand for houses building increasing, the need for construction machines will also increase, especially the digger. Being compact and flexible, the compact excavator can be used in narrow space where the large machine could not reach. Maintenance should not be neglected, which is very important to keep the machine in a good condition to reduce downtime and catch the working schedule no matter in what kind of constructions. Lubrication is a key step in the digger maintenance since the lubricant can reduce abrasion to the machine. The lubricant should be kept clean to avoid mixing with dust, sand, water and other impurities. Proper lubrication can extend your machine’s service life and reduce maintenance cost, which plays an important role in the digger applications.

Related article: 14 Ton Excavator Loading Dump Truck

Excavator Road Building Techniques

Excavator is widely used in road building. Mastering some techniques can not only improve working efficiency but also reduce damage to the machine. When digging, the angle between the boom and jib should be 90°to 110°and the angle between the bucket’s bottom and the ground should depend on the quality of the earth, 60°for soft earth and 30°for hard earth. The boom will cooperate with the bucket movement under the driving power of the cylinders on the jib. The bucket should be taken back when it is filled with three quarters by lifting the boom.

Leveling is a step that integrates with varied movements in digger road building, which includes digging, sweeping and positioning. The earth in the high place should be moved to the low place, the earth in the surface should be taken first then the subsoil followed. To dig a trench, the two sides should be excavated before the middle place. The digger should be kept stable and the crawler belt should travel straight line, which is very important for digging a straight trench. The trench should be dug gradually by making perfect and accurate work in each section, which will ensure the finished trench does not require remedial work to make it usable. 

The road should be wide and compacted as much as possible to avoid cave-in. Avoid working in rainy days, where the wet road and blurred sight will cause accident. Don’t make sharp turns at high speed, which is very dangerous. The compact excavator should be maintained regularly to avoid break down to the minimum and guarantee the work finished on schedule.

Related Cases Video: Sany 22 Ton Excavator SY220C-9 Works in The Quarry

Compact excavator Maintenance Techniques

Compact excavator is widely used in engineer construction, where accidents may happen if notices are not paid enough. When the digger is working, none of the people should climb the machine or pass any items. Maintenance should not be done when the machine is working, which may cause unnecessary accidents. The hydraulic system, electric control system should not be adjusted casually and the operation should be done as specified. When discharging, the digger should start to work after the dump truck stopped stably. The digger should not collide with any parts of the dump truck when discharging and the bucket should not pass over the cab of the dump truck. The bucket should not be used to crush big and hard objects, which should be removed first.

The fuel oil should be chosen according to the ambient temperature, different bands and specifications should be matched with different working conditions, which is very important to keep the compact excavator in highly efficient. The fuel oil should not mix with any impurities, dust or water, all of which may cause serious abrasion to the fuel pump. The fuel tank should be fully filled to avoid any water producing in the interior of the tank.

Lubricant can reduce abrasion to the machine surface. It is very important to keep the lubricant clean and purified, otherwise, the lubrication will not work. Dust, sand, water and other impurities should not mix with lubricant. The filter can prevent the impurities entering fuel oil or other parts, thus it is very necessary to change the filter regularly and keep it clean. All of the above guidelines are very important and effective to keep the compact excavator in a good condition and make the maximum profits for the customers. If you want to maintain your machine well, just follow these guidelines.

related article: 14 Ton Excavator Loading Dump Truck

Wind Energy Provides Power for Netherland Trains

Netherland is known as the “hometown of tulip” and the “kingdom of windmill”, tulip and windmill are the marks of this beautiful country. As the treasure of Netherland, the wind resource once again is put into great use--providing energy for trains. All of the trains in Netherland are driven by electricity and several newly-built wind plants started to provide power for trains on the first day of 2017, which makes Netherland become the first country in the world that completes the goal of renewable energy providing power for trains. 

Wind power is one of the main sources for electricity generation in Netherland. Using wind turbine generator to generate electricity is not only environmental-friendly but also can adjust one country’s energy structure and improve people’s life quality. Reducing carbon emission is not only Netherland’s wish but also the goal of the whole world, and Netherland has set a good example for the world in renewable energy development. Actually, 75% of Netherland trains were driven by wind power till last year, and the percentage reached 100% on January 1st of this year.

The wind turbine generator appeared in the 1890s and developed fast since 1980s. In the past years, the diameter of the rotor blade kept increasing and the rated power kept improving, being more and more widely used in industrial applications. More and more countries in the world take deep interest in the wind resource development, which will make the wind power more popularized in the future. The crawler crane is an indispensable device when installing a wind mill.

How does Excavator Build the Mountain Road?

As the best digging tool of trenching and grading, excavator is widely used in road building. When building the mountain road, some guidelines should be kept in mind in order to guarantee smooth work and safety. The road should be wide and compacted as much as possible to avoid cave-in. Avoid working in rainy days, where the wet road and blurred sight will cause accident. Sharp turns should be avoided to guarantee the driver have a clear sight of the front road condition. The ramp angle should be considered according to the soil nature and avoid long and steep slope. Emergency lane should be set in the open space of the ramp. Avoid hard stones and creeks. Clear the barriers in the road and make sure that road surface can bear the traffic load.

Cautions and patience should be paid in the process of hydraulic excavator building road on the mountain. The digger should be parked stably, which is very important and also the precondition of the follow-up work. Using the bucket to remove the barriers like boughs and stones and then dig towards the specified direction. If the earth excavated from the mountain is not enough for the road building, branches and stones can be used in padding the road.

The excavator should walk with low speed in the road building process. Pay attention to the turning radius to avoid collisions. Of course the maintenance should not be neglected at any time, the malfunction should be solved in time before it affecting the working schedule.

other related product: piling rig, truck crane, crawler crane, mini excavator, medium excavator and ect. Sany will provide free training for operator, after you buy our construction machine.

Road Machinery Challenges the Impossible

From large-scale hydroelectric project to the “ridge of the world”-Qinghai-Tibet Railway, from Beijing ring six road project to the World Cup and Olympic Games in Brazil, Sany road machinery never stops challenging the impossible and making wonders that cause attentions of the world.

Working in the plateau is one of the toughest challenges for road machinery. The oxygen deficit and severe cold made the engine hard to start and appear frequent flameout in the Qinghai-Tibet Railway construction, which is located in the altitude of over 5000 meters. Engineers took the initiative to research and develop the rollers, motor graders and pavers that were specially used in plateau. These customized products had great climbing capability and can be used in the low temperature with high efficiency.

Beijing ring six road construction was one of the key parts in 2008 Olympic Games project, its high technical standard and construction difficulty made a record in China road construction. 7 Units of Sany road machinery including motor grader, roller and tire roller were used in this great project.

Algeria East and West Highway is the longest highway in Algeria, which is located in heavy hills with gullies and ravines. Not limited to steep terrains, the construction area is covered with marlstone, which is called “mine field” by the road builders. As the main force, SANY provided 193 units of equipment for this project including 56 units of rollers, 32 units of motor graders, 5 units of pavers and so on. Rio de Janeiro is the host city for the 2014 World Cup and 2016 Olympic Games. In order to welcome the two international events, Brazil spared no efforts in building the World Cup stadium and Olympic Village. About 100 units of hydraulic rollers were used in the two world projects.

With the belief of “Quality Changes the World”, Sany never stops producing more innovative construction equipment with advanced technology and commits to making more contributions to the world. Sany road machinery will continue to challenge the impossible and create more world wonders.

Motor Grader Applications and Maintenance Guidelines

Motor grader plays an important role in leveling and grading work in earth moving and foundation. It is widely used in large-scaled ground surface leveling, such as, highway and airport construction. The grader is a great tool to assist other machines complete working, it can be used alone or combined with other machines. In the road building, the grader is indispensable, especially in the finishing stage, where the grader will spread and flatten the soil to create a well smooth, wide-ranging and level surface, making a strong and stable foundation for the road construction.

Motor grader is a kind of earth moving and foundation machine with high speed, high efficiency, high accuracy and multiple functions. It can be used in road leveling, trenching, slope cutting, bulldozing, snow removal, earth scattering and mixing, land clearing and so on. It is an important part in mineral construction, road repairing, water conservancy and farmland improvement. The road bed is the foundation of the road surface, an important part in road construction, it bears the traffic loads, so the road bed must have high strength, stability and durability, which is the daily work of the grader, simple but tough.

Hydraulic oil is one of the most important factors that need to be maintained well in the motor grader daily maintenance. The hydraulic oil is not only the transmission medium but also the lubricant, which is used to seal the parts, and the hydraulic oil bears the role of heat dissipation as well, therefore, it is very important to keep the hydraulic oil efficient and reliable. Qualified hydraulic oil features proper viscosity, anti-rust, antioxidant and low volatility. The hydraulic oil should be kept clean and avoid pollution, thus providing the machine the most purified power source.

Small Excavator Development and Maintenance Guidelines in Winter

Small excavator plays an important role in city construction and traffic infrastructure, it develops fast in the small-sized engineer construction and makes great contribution for saving labor and resources. Being compact and flexible, the small digger can be used in narrow space to make the maximum productivity, thus becoming the representative construction machinery in city construction. The small digger’s development depends on the city development, which puts forward higher requirements to the small digger including higher efficiency, higher safety, low pollution and ease of operation.

From 1970s, the hydraulic excavator had been accounted for 83% of the total excavators and now is approximately 100%. Regular maintenance should be made to keep the hydraulic devices in a good condition, especially in the winter, during which the freezing temperature will cause damages to the hydraulic parts. Before starting working, the small excavator should be set in idle running with low speed for several minutes, then speed up the engine to the maximum and make the bucket and rod running for 5 minutes. Pay attentions to the ambient to avoid injuring people or other objects around when preheating.

If the small excavator is on the shelf in winter, special care should be taken to the machine to make it ready for immediate use. Clean the surface of the machine and check the parts to avoid loose bolts. Keep the fuel oil and antifreeze in good quality and normal work. If the machine needs to be stopped for a long time, the engine coolant should be discharged completely and the accumulator should be stored in warm place.

Related article: Digging Trench with Mini Excavator