Earth Moving Machinery
wheel loader is extensively applied in the construction sites, ports, harbors, stations, and goods yards.
Telescopic wheel loader is extensively applied in the construction sites, ports, harbors, stations, and goods yards.
wheel loader is extensively applied in the construction sites, ports, harbors, stations, and goods yards, especially for loading and short-distance transport of bulk materials, including loose soil, sandy soil, gravel, and coal.
skid steer loader can be used for a variety of applications such as road construction/maintenance/cleaning, buildings construction engineering, forestry, garden landscape, agriculture, slope paving/leveling, and lifting/handling.
backhoe loader with excellent reliability, environmental adaptability, safety, maintainability, maneuverability and cost effectiveness.
Crawler Excavator is suitable for complex earth and rock working conditions.This excavator is mainly used in road,municipal and other light urbanization open-air operations.
Wheeled excavator is qualified for heavy construction tasks, it can save your time and money with its efficient and reliable performance. It can be widely used in earthwork construction such as municipal construction and port construction.
Bulldozer is mainly adapted to the excavation, backfilling, pushing and transporting of earth and rocks on the ground of highways, railroads, airports and rivers, etc.
SMALL-SIZED LOADERS
Featuring high flexibility ,efficiency,reliability,and durability,the new generation small-sized wheel loader can be rapidly fitted with diversified attachments,in cluding sliding forks,clamp,and sweeper ,to realize multi-functionality and is extensively applied for the operations in the fields of municipal administration,transportation ,agriculture and forestry,and water conservation.
1.The streamline appearance and arced ballast feature graceful modeling and the panoramic glasses feature broad visual field.
2.The all-new optimized working device challenges the efficiency limit of small-sized loaders.
3.The ergonomic design and easily accessile controls mitigate the fatigue during long-time operations
4.The optional hydraulic pilot control ,FOPS/ROPS cab,A/C,and audio system feature comfortable operations and high driving safety.
5.There are multiple attachments at your choice ,including side dumping device ,clamp ,bale grabber ,and fork ,which greatly expand the application scope of loader.
MEDIUM-SIZED LOADERS
New generation loader is rooted in the customers’ needs and based on the international R&D platform to thtoroughly improve the product reliability,economy,comfort,efficiency,maintenance convenience, and adaptability and is a preferential machinery product for the prodution organization in the fields of ports ,mines ,engineering constructions and logistics.
- The super-strong heavy-duty structural parts,enhanced drive system,and globally supplied critical parts can carry the rorsion and impact loads under diversified working conditions.
- The full-enclosed slightly pressurized cab with heating and air conditioning aystem enlarges the interior space by 20%.The multi-direction adjustable control box and steering column provide first-class driving /riding experience.
- The electronic controlcountershaft transmission matches perfectly with engine to maximize the utilization of engine power.
- The optimally designed working device equipped features automatic leveling function ,pilot control ,and high operation eddiciency.
- The centralized pressure measurement,”one-stop”maintenance ,easily cleanable single-row radiator with large fin spacing ,and extended replacement interval of hydraulic oil realize short shutdown time and low maintenance cost.
1. Select and Use the Right Hydraulic Transmission Oil
Choose the hydraulic transmission oil according to the temperature characteristics of the actual construction season. In addition, the oil should be oxidation resista nt, with certain viscosity.
2. Pay Attention to Maintenance
Keep the filter screen unblocked. Regularly check the oil filter if the wheel loader is equipped with it. The output shaft seals of the front and rear axles should also be inspected so as to prevent oil leak. Additionally, regular checks of the engine cooling water quantity and tensioning of fan belt are required to ensure there is enough cooling water and air.
3. Give Much Attention to Degree of Parts Wear and Assembly Quality
a. Keep the variable speed pump operating at peak performance. If the temperature of the pump is much higher than that of the tank, then an overhaul is required. The clearance between the pump cover and two gear faces should be 0.150～0.200mm, and the maximum width difference of a pair of gears should be less than 30mm. There should be no obvious scratches and grooves on the parts surface. The gears must be assembled in pairs and run flexibly.
b. During transmission overhaul, please focus on checking friction plate. There should be no spalling, cracks, debris or dust, and the friction plate and the steel sheet must be bonded firmly.
c.Maintain proper fit clearance of the speed change valve. If the clearance is too large, the pressure oil may be squeezed from the gap, which may cause throttle loss, resulting in high oil temperature. In addition, the pressure of the speed change valve should be properly adjusted.
d. After installation of the torque converter, all rotating parts should be able to rotate freely. Rotate the turbine set by hand, the first stage turbine blade and the second turbine blade should rotate flexibly and freely without clamping stagnation. Additionally, oil seals and seal rings should be damage free. Also, bearing failure must be eliminated. Furthermore, maintain normal oil pressure at the inlet and outlet of the torque converter
e. Avoid long-term overloaded operations.
Although there are many factors could cause cavitation, cavitation can also be avoided if we take effective measures to prevent it.
(1) Use High Quality Hydraulic Oil
Choose high quality hydraulic oil according to the related oil standard, because qualified oil can effectively prevent the formation of air bubble. Keep the hydraulic system as clean as possible, and regularly inspect the oil quality, oil level and oil color. Whenever water bubbles or foams occur in the hydraulic oil, please work to find the air source and then eliminate it.
(2) Prevent the Oil Temperature from Being too High so as to Reduce Hydraulic Shock
Reasonable design of the cooling system is key to maintaining normal temperature of hydraulic oil. In addition, smoothly operate hydraulic joystick, distribution valve and thrust lever, in order to minimize hydraulic oil’s impact on the hydraulic components. Furthermore, timely maintain the cooling system so as to keep its temperature within certain boundaries, thus reducing the energy caused by the collapse of air bubbles.
(3) Maintain the Normal Clearance between Joint Surfaces of Hydraulic Components
When manufacture or repair main components of the hydraulic cylinder (like cylinder block, piston rod), please assemble them according to the lower tolerance limit of mounting dimensions, which can greatly reduce cavitation. If cavitation occurs in hydraulic components, utilize metallographic sandpaper polishing technique to remove cavitation pitting and surface carbon deposit.
(4) Pay Attention to Air Discharge during Maintenance
After maintenance, the hydraulic system should be operated for a while so that the hydraulic oil in the system can fully circulate. If necessary, disassemble the oil inlet pipe or return pipe so as to let the oil spill out of it, thus achieving air discharge of single cylinder.