News

Jining Changsong Construction Machinery Co.,ltd lies at Jining City.It export Shantui Bulldozer parts,excavator parts,loader parts to all over the world.Bulldozer of accessories items: engine assembly (Cummins Weichai), gearbox assembly, transmission assembly, TY160 working pump, left and right tool corners, universal joints, carrier pulleys, loose soil cylinder assembly, wet track assembly, track bolts , return pump, standard track assembly, standard track plate, shift valve, SD22 track plate, SD22 working pump, SD22 fan tensioner, SD16 variable speed pump, SD16 left and right bearing seat, SD16 steering pump, SD16 hydraulic filter, SD16 working pump , SD16 magnet filter, SD16 tooth block, rain cap, guide wheel, piston, gear shaft, lifting cylinder, roller, nut, double pump, Shantui special oil.

How to save oil on the excavator is one of the topics that the majority of the operators pay attention to. Under the condition of consuming less fuel and not affecting the life of the excavator, it can make more money. This is naturally what every operator wants to see. As a result, today Changsong Machinery introduces you to the fuel-saving operation skills, so that everyone can master the fuel-saving tips. 1. Reduce engine speed When the engine speed is high, the walking speed is fast, and the part with high turning speed consumes a lot of fuel. When the rotation speed is low, the fuel efficiency is better than walking at high speed. When the excavator is working, when the throttle knob or the lever is in a very low position, the fuel consumption will drop significantly, but the excavator will also work at a much lower speed. Although the excavator is mostly charged according to time, for the monthly salary, For the driver, it will be an extreme test of patience. The other is to pay attention to the regular and timely maintenance. Due to the deterioration of the oil and the incomplete filtration of the diesel oil, the fuel injection and lubrication system will be damaged, resulting in excessive consumption of fuel. 2. The body is square If the excavator is not level when working, it is easy to increase the swing load. As we all know, when working to reduce the angle of the swing, then if the fuselage is on the slope, the process of rotation is divided into half is uphill and half is downhill. For the excavator, it is very difficult to rotate and add slope. It is really easy for the operators to stop the fuselage. 3. The throttle size is suitable When the excavator is working, it is mostly a compound action, such as lifting the boom at the same time, collecting the stick, hooking the bucket, and adding the rotating motion. The speed and force of each action is controlled by the stroke of the joystick. When the engine speed is very low, in order to avoid serious engine shake and flameout, it is necessary to make some decomposition of the compound action, make a very limited energy to be properly distributed, and need to give appropriate buffer through the operating rod to match the low Low power output due to speed. 4. Clean up the soil The walking device is covered with mud, and the resistance increases when walking, which is the cause of the increase in fuel consumption. Therefore, it is necessary to clean up the soil regularly. 5. Adjust the tension The tension of the track is not adjusted properly, and the resistance increases during walking, which is the cause of the increase in fuel consumption. It should be adjusted to an appropriate degree by referring to the adjustment method on the decoration manual. At this point, on the tips of the oil-saving operation of the excavator, Oufeiya Machinery has introduced ten methods to everyone. I believe that meticulously remembering and developing habits will definitely help you to save fuel and obtain maximum benefits.

Shantui original track chain assembly identification method Shantui original track chain assembly identification methods mainly have the following points: First, the chain track section head The right-hand head looks from left to right: Shantui logo (1 digit) + pitch code (5 digits: 4 digits + 1 capital letter) + right section symbol (R) + mold number furnace number ( 4 digits: 1 uppercase English alphabet + 3 digits) The left section head reads from right to left: mountain push logo (1 digit) + pitch code (5 digits: 4 digits + 1 capital letter alphabet) + left section symbol (L) + stove number mold number ( 4 digits: 2 digits + 1 uppercase English alphabet letter + 1 digit) Shantui's chain link section is dominated by the top, such as SD16 dry chain, SD22 chain, SD32 chain and 190 series, 203 series, 216 series excavator chain. Special case: SD16 wetland chain. The right-hand head looks from left to right: Shantui logo (1 digit) + 203MA + right section symbol (R) + furnace number (2 digits: 2 digits) The left section head reads from right to left: Shantui logo (1 digit) + 203MA + left section symbol (L) + stove number (2 digits: 2 digits) Another mountain push 160 bulldozer chain was modified in 2016 (excluding the lubrication chain), the dry chain used all 203MJ chain links, and the wet chain used 203MMA chain. If there is a wetland chain using a 203MJ link section is definitely a fake. Second, the chain identification code In the middle of the left-end bolt mounting surface of each chain, an identification code is printed on the printer, including product information and production information. This information can be traced on the production ledger of the Shantui crawler chassis. Inquire. Third, the pin The common pin of the mountain push chain is a continuous production line through the heat treatment equipment, and there is no central hole at both ends of the pin shaft, and the heat treatment process is all in the Shantui crawler factory; The main pin shaft is made of thimble scanning heat treatment equipment because of the production equipment. Both ends have a central hole, and the heat treatment process is carried out in the external cooperation factory of Shantui. Fourth, the inspection label on the last pin sleeve Inspection labels are attached to the pin sleeves at the end of each chain, including product information, production information, and inspection conformity marks. Five, the post-market QR code label There are two two-dimensional codes on the QR code label of the post-market. The above two-dimensional code can query the product information (the Shantui internal system can find the attribution of the product); the following QR code can check whether the product is For the original product.

Jining 6 tons crane We are supplier of homemade crane. Tt's advantage is that the body is narrow and the boom is long, mainly saves oil and electricity. Its configuration is as follows; 1. Chassis: homemade crane 2. Engine: 485 engine 3, tire: 700-16 3, brake: air brake 4. Direction: Hydraulic boost 5, wheelbase: 2800mm 6, the highest speed: 75km / h 7, single arm length: 5m 8, boom number: 5 9, boom shape: U type 10, thick section boom size: 42 cm high, width: 26 cm 11, the number of lifting legs: 6 12, hydraulic system: 50 pump system 13. Fan heat system: air-cooled fan heat system 14, motor: 11kw 15. Double winch: 6 tons hydraulic winch 16, large frame structure: I-steel box 17, appearance size: length 6530mm; width 1960mm; height 2730 18, the total quality: 8000kg This model is the first choice for rural construction, and the price is not high, back to the fast. Buy changsong cranes and welcome to visit our company.

Our company specializes in sales of Komatsu excavators and Shantui bulldozers. All main mechanical parts are: hydraulic pumps, distribution valves, motors, final drive assemblies, rotary assemblies, engine assemblies, four-piece engines, starters, Generator, supercharger, computer board, display, cab assembly, pure roller, roller, guide wheel, solenoid valve relay, pressure switch, hydraulic tank, seat, engine cover, PC60-7PC130, PC200/PC300-7 air filter assembly, throttle motor, wiper motor assembly, wiper assembly, start switch assembly, radio, door lock assembly

Excavator attachment-quick coupler (quick hitch) The quick coupler of the excavator is also called the quick hitch. It is installed at the front end of the excavator work device. It can quickly complete replacement of various excavator attachments such as buckets, breakers, rippers, hydraulic shear log grabber, stone grabber without manual disassembly of the pin. It can make the excavator to expand various operations such as crushing, shearing, clearing, compaction, milling, pushing, pinching, grabbing, scraping, loosening, lifting, etc. The changing process of attachment is simple, safe and reliable, saves time, and it greatly improves the working efficiency of the excavator. Category of excavator quick coupler According to the product structure and function level, the quick coupler can be divided into two categories. One type has a simple structure and only has a quick change connection function, which is called ordinary quick coupler; The first category has simple structure and only has the function of quick change connection, which is called ordinary quick coupler. The other kind not only has the function of fast connection, but also increases the degree of freedom. Only ordinary quick couplers are introduced here. The ordinary quick coupler is divided into mechanical and hydraulic type according to the driving method. Working principle of hydraulic quick coupler The hydraulic quick coupler mainly fixes and releases the pins 1 and 2 by the action of the cylinder. When the working part needs to be replaced, the cylinder is retracted, the hook-shaped clamp moves from the position of 1 to the position of 2, the quick coupler is disengaged, and the other working parts are replaced, and the hook-type clamp is turned on after the pin is closed, and the cylinder is opened again. The hook-shaped clamp moves from the position of 2 to the position of 1 to lock the work fitting pin. Of course, except for this, there are external oil circuits and solenoid valves working at the same time. It is recommended to select hydraulic quick coupler if the weight of excavators was over 13T. Working principle of mechanical quick coupler There are a variety of types for mechanical quick coupler, but only two types are commonly used, they are a plug type and a screw type. The principle of the plug-type quick coupler is that when the working part needs to be replaced, the wedge card is first pulled out, the T-shaped buckle is knocked in, and the quick-coupler is separated from the bucket. When changing to the required working part, the T-shaped buckle is pulled back, and the wedge-shaped card is inserted into the T-shaped buckle for locking. Screw structure is simple and easy to operate, it needs to be replaced by manual operation mechanism, usually adopts spring locking method. Due to the restriction of manual unlocking force, the spring force can not be too large, it is easy to cause the lock hook to loose, and it is necessary to set safety. Devices such as pins are generally widely used on small excavators. It is recommended to select mechanical quick coupler if the weight of excavator was below 13 tons . Installation of excavator quick coupler 1. The mechanical installation method is the same as the installation method of the bucket. It is very convenient. 2. Hydraulic installation requires a set of pipes, a solenoid valve, and an electromagnetic switch. The future trend for Excavator attachment More than 90% of excavators abroad are equipped with quick coupler, which have become the standard configuration of excavators just like bucket and crushing hammers. In particular, it is very common to use excavators attachments in northern Europe, South Korea and other countries. As the domestic accessory industry is still in the introduction period, in addition to the crushing hammer market has begun to take shape, the application of other attachments mostly stays at the primary level, and its convenience and efficiency have not been widely recognized and accepted. It has only been promoted and applied in China in the past few years, and it has developed rapidly. Many products and technologies come from abroad. The universal quick connector is still in the development and cultivation period in China, and will be used quickly in the next few years. It will be the golden time for the development of excavator attachment in next few years. The quick coupler will bear the brunt, become the main product in the excavator attachment, and bring more convenience and efficiency to excavator users.

Fault handling problem of fast connector Causes: 1.There is a square valve block in the oil cylinder, check whether the valve core of the valve block is stuck. 2.Spool stuck with a small amount of hydraulic oil cleaning, there may be impurities blocked. 3.Check whether the control switch is power off and whether the power is intact. 4.Check the solenoid valve is intact, in the state of power, solenoid valve can not be closed. 5.Check whether the oil circuit is unobstructed, cut off the joint with the cylinder and pull the switch to see whether there is oil. 6.Check the oil cylinder for internal leakage. 7.Check the movable jaws for hard objects. Problem 2. Cracking of safety pin, cylinder and housing? 1.Check whether the opening gear of the quick connector is consistent with the matching excavator. If not, replace it as soon as possible. 2.Check that the center distance between the quick connector and the fitting is consistent. 3.Check the crack site for defects and welding defects. 4.If the cracking is not serious, the v-groove shall be polished at the cracking place and welded by secondary welding. 5.Check cracking is too heavy, produce deformation to replace in time. Problem 3. Can't hang on the fitting 1. Check whether the center distance of the quick connector is consistent with that of the fitting. 2. Check whether the safety pin positioning hole is accurate 3. Check whether the contact between the movable jaw and the safety pin is broken 4. Check whether the reversing valve is damaged and there is internal leakage If the customer is in a hurry to switch the crushing hammer or the loosener/vibrator/wood grabber, in the case of no action of the quick connector, you can manually connect the two oil pipes on the oil cylinder interchangeably, then you can solve the pressing danger!

Code of safe practice for hydraulic shears for excavators Excavator hydraulic shear is the most ideal tool in the process of breaking, the main body of the dual oil cylinder is equipped with a variety of different structures of the jaws, to achieve the process of breaking the separation, cutting, cutting and other functions, so that the breaking operation efficiency is higher.Working efficiency is two to three times of the crushing hammer, fully mechanized operation, safety and time saving.Now the new hydraulic shear structure design ingenious, hydraulic motor driven rotary support 360 degrees rotation, use more flexible and convenient.So excavator hydraulic shear safety operating procedures is what? Although excavator hydraulic shear has the characteristics of simple operation and high mechanical strength, its production efficiency can be guaranteed only when it is used according to the safe operation rules.Below is the excavator hydraulic shear safety operation procedures of the specific introduction, interested friends can come to pay attention to. 1. Operators of excavator hydraulic shears must be familiar with the structure, performance and operating rules of the equipment. 2. All important parts of the hydraulic shears shall be inspected before work to keep the machine and surrounding sites clean and the wires well insulated. 3. The working staff shall check the sharpness of the cutting edge of the hydraulic excavator every day. If the cutting edge is found to be blunt, it shall be replaced in time. 4. Do not put any part of your hand or body under the blade or other rotating parts to avoid accidents. 5. In case of abnormal operation of the machine, stop the machine immediately for inspection. Now, the new hydraulic shear has been on the market.This kind of scissors is suitable for different operations, including steel structure breaking, scrap steel processing and other applications, can cut iron materials, steel, steel, hydraulic shear unique design and innovative way to ensure efficient operation and strong cutting force. In addition, the installation of the hydraulic shear is simple. Connect the pin hole to the front end of the excavator, and connect the pipeline of the excavator to the hydraulic shear.Hydraulic shears can be installed on excavators of various brands and models, which can be operated by only one excavator operator, truly realizing the universality and economy of the products.

Wood grabber failure analysis and treatment plan After the excavator is installed with the wood grabber, the advantage of the forest work is obvious, the loading and unloading efficiency is doubled, and various faults may occur after the use of the wood grabber. Now we will analyze several common faults and handle for you: 1.the wood grabber can not be rotated 360 degrees: First check whether the rotary solenoid valve is energized, and whether the rotary oil returning to the oil pipeline is oily. If there is no problem in the above items, please check if the rotary motor is working normally. If the motor is normal and the solenoid valve does not work under power supply, please replace the solenoid valve or clean it in time, Solenoid valve spool. check circuit , switch and whether the insurance and relay are powered off. 2, the grabbing wood does not grab the action: Check if the gripping pipeline is oily. If there is hydraulic oil, please check whether the stroke valve on the cylinder is stuck. If it is stuck, clean the cylinder spool, check if the cylinder rod is deformed and broken, and check whether the solenoid valve of the clamping action is normal. Check if the relay is burned out. If necessary, please replace the above accessories in time. 3, the grip of the wood gripper is weak Check whether the pipeline and the shut-off valve are fully open, whether the solenoid valve can be fully opened, and whether the cylinder seal is worn out to cause internal leakage. If the above problem occurs, please correct or replace the seal in time. wood grabbing is dedicated to serve you,Its structure design is advanced, it is produced with wear-resistant materials, hydraulic parts are all imported, welcome to visit and purchase!

How to install the quick connector The quick connector has been used in many occasions and has been frequently used in the construction machinery industry and auto parts production lines, and has been well received by users. Different types of connectors can be used on equipment such as hydraulic pipes or excavators, and although they are not good, they can exert great power at critical moments. So how to install the quick connector? 1. First weld the iron pipe to the arm with a pipe clamp. Connect the 90° joint below the iron pipe. Pay attention to the angle and kill it. Two hoses (A/B) of the connector cylinder. 2. After the iron pipe is welded firmly, the angle of the 90° joint is adjusted first, and the iron pipe is placed against the top of the iron pipe. 3. The pipeline hose (A/B) is connected with the wire correctly, and the boom pipe can be fastened with the cable tie. 4, switch connection method: do not need to divide the positive and negative poles, one will connect the solenoid valve body, the other is connected to the positive pole of the fire line, and is connected with the switch. In this process, it is important to note that the cylinder needs to be retracted when the switch is pulled up (opened). When closed, the solenoid valve is always in the oil supply state, and the cylinder needs to be opened to withstand the pin. 5, solenoid valve P / T connection: 6 ~ 7 pipe P / T port, solenoid valve p into the oil, take the pilot oil (walking high and low pressure, foot valve high and low pressure), solenoid valve T back to oil, back Hydraulic tank or return line. Solenoid valve A/B needs to connect two pipes of No. 4 boom. Walking high and low pressure P/T, need to connect the three methods separately: walking P high pressure oil into the solenoid valve P, walking T low pressure return oil to the solenoid valve T. In this case, everyone should pay attention to: the solenoid valve is not energized, and when the P port has oil, the A port is oiled. After the pipelines are connected, it is important to find a suitable position for the solenoid valve. Before replacing the attachment, first remove the safety pin. After the replacement, insert the safety pin for protection. A safety pin protection device is required on each quick connector to ensure normal suspension operation in the event of a failure of the quick connector cylinder.

The power source of the breaker is an excavator and a loader, which can more effectively clean the mud in the floating stones and rock gaps in the function of excavating the foundation of the building. When choosing a breaker, you need to consider the following aspects: First, the weight and bucket capacity of the excavator. Full consideration of the weight of the excavator can prevent the excavator from tipping over due to the excessive weight of the breaker when the boom is fully extended. The excessively large breaker may cause the excavator to tip over, too small to fully utilize the excavator. Efficacy, but also accelerate the damage of the breaker, only the weight of the two can match the full effect of the excavator and breaker. Second, the working flow and pressure of the hydraulic breaker. The working flow of different sizes of hydraulic breakers is different. The flow of small hydraulic breakers can be as small as 23L per minute, while the large hydraulic breakers can reach more than 400L per minute. When selecting a hydraulic breaker, the flow requirement of the hydraulic breaker must be consistent with the output flow of the excavator backup valve. The flow rate determines the operating frequency of the hydraulic breaker, that is, the number of impacts per minute, and the flow rate is proportional to the number of impacts. When the output flow of the excavator backup valve is greater than the required flow of the hydraulic breaker, the hydraulic system will generate excessive heat, causing the system temperature to be too high and reducing the service life of the component. Third, the structure of the hydraulic breaker is on-board. Hydraulic breakers currently have three of the most common designs, including triangle, right angle and silent. Triangular and right-angled styles usually use two thick steel splints to protect the sides of the hammer. This structural design has no protection for the front and rear of the hydraulic breaker. Their disadvantage is that it is more noisy than the silent hammer of the same tonnage. The steel plates on both sides are easy to loose or crack, and the protection of the hammer is not good. The structure of the silent breaker is that the outer casing completely encloses the hammer body, and the outer casing is provided with a vibration damping material, which can reduce the vibration of the carrier while generating a buffer between the hammer body and the outer casing, and has the advantage that the hammer can be operated during work. The body provides better protection, low noise, reduced vibration of the carrier, and also solves the problem of loose housing, which is also the mainstream and development trend of the global market.

Excavator attachment-quick coupler (quick hitch) The quick coupler of the excavator is also called the quick hitch. It is installed at the front end of the excavator work device. It can quickly complete replacement of various excavator attachments such as buckets, breakers, rippers, hydraulic shear log grabber, stone grabber without manual disassembly of the pin. It can make the excavator to expand various operations such as crushing, shearing, clearing, compaction, milling, pushing, pinching, grabbing, scraping, loosening, lifting, etc. The changing process of attachment is simple, safe and reliable, saves time, and it greatly improves the working efficiency of the excavator. Category of excavator quick coupler According to the product structure and function level, the quick coupler can be divided into two categories. One type has a simple structure and only has a quick change connection function, which is called ordinary quick coupler; The first category has simple structure and only has the function of quick change connection, which is called ordinary quick coupler. The other kind not only has the function of fast connection, but also increases the degree of freedom. Only ordinary quick couplers are introduced here. The ordinary quick coupler is divided into mechanical and hydraulic type according to the driving method. Working principle of hydraulic quick coupler The hydraulic quick coupler mainly fixes and releases the pins 1 and 2 by the action of the cylinder. When the working part needs to be replaced, the cylinder is retracted, the hook-shaped clamp moves from the position of 1 to the position of 2, the quick coupler is disengaged, and the other working parts are replaced, and the hook-type clamp is turned on after the pin is closed, and the cylinder is opened again. The hook-shaped clamp moves from the position of 2 to the position of 1 to lock the work fitting pin. Of course, except for this, there are external oil circuits and solenoid valves working at the same time. It is recommended to select hydraulic quick coupler if the weight of excavators was over 13T. Working principle of mechanical quick coupler There are a variety of types for mechanical quick coupler, but only two types are commonly used, they are a plug type and a screw type. The principle of the plug-type quick coupler is that when the working part needs to be replaced, the wedge card is first pulled out, the T-shaped buckle is knocked in, and the quick-coupler is separated from the bucket. When changing to the required working part, the T-shaped buckle is pulled back, and the wedge-shaped card is inserted into the T-shaped buckle for locking. Screw structure is simple and easy to operate, it needs to be replaced by manual operation mechanism, usually adopts spring locking method. Due to the restriction of manual unlocking force, the spring force can not be too large, it is easy to cause the lock hook to loose, and it is necessary to set safety. Devices such as pins are generally widely used on small excavators. It is recommended to select mechanical quick coupler if the weight of excavator was below 13 tons . Installation of excavator quick coupler 1. The mechanical installation method is the same as the installation method of the bucket. It is very convenient. 2. Hydraulic installation requires a set of pipes, a solenoid valve, and an electromagnetic switch. The future trend for Excavator attachment More than 90% of excavators abroad are equipped with quick coupler, which have become the standard configuration of excavators just like bucket and crushing hammers. In particular, it is very common to use excavators attachments in northern Europe, South Korea and other countries. As the domestic accessory industry is still in the introduction period, in addition to the crushing hammer market has begun to take shape, the application of other attachments mostly stays at the primary level, and its convenience and efficiency have not been widely recognized and accepted. It has only been promoted and applied in China in the past few years, and it has developed rapidly. Many products and technologies come from abroad. The universal quick connector is still in the development and cultivation period in China, and will be used quickly in the next few years. It will be the golden time for the development of excavator attachment in next few years. The quick coupler will bear the brunt, become the main product in the excavator attachment, and bring more convenience and efficiency to excavator users. For more information,please contact me: Helen Feng Sales manager Jining Changsong Construction Machinery Co., Ltd Mobile:+86 17753399529 Wechat: +86 17753399529 QQ:2850697503 Email:cindyliu@chsmachinery.com Website:http://en.chsmachinery.com Alibaba:http://chsmachinery.en.alibaba.com/

excavator [gear oil] related problems are here! When you are doing maintenance on the excavator, the most important thing is the hydraulic oil and the oil. This is understandable. Speaking of gear oil, I think the first thing that everyone thinks about may be the gear oil of the car or the gear oil of the rear axle of the vehicle. In fact, our excavators also need gear oil. So, which parts of the excavator need to use gear oil? How do we check and replace the gear oil? Today, Xiaobian teaches you with your hands and is optimistic! What damage does the lack of gear oil bring? What do you want the reducer to be most afraid of? The most fear is that the gear oil is leaked unconsciously. After the lack of oil, it is easy to damage the bearings and gears. Seriously, the entire gearbox can be scrapped, not only losing money, but also delaying the construction period. Because it costs money to make money, it is too blocked. Slewing motor reducer damaged by oil leakage What causes the travel motor reducer to leak oil? Since the travel motor reducer is always exposed to the outside, it is easy to damage the floating oil seal in some harsh construction environments, which may result in oil leakage. There are a lot of excavators that are used for dry building or new construction. On this site, there are a lot of scrap wire and scrap steel. It is easy to get caught in the floating oil seal. After the floating throttle is opened, it is easy to leak the gear oil. And there are many sundries on the construction site, it is very likely that the wire is involved in the reducer or has caused the oil to leak. Therefore, if it is found in time, replace the floating oil seal and the supplemental gear oil. If there is more oil leakage, the gear oil gear between the gear reducer and the gear and the bearing will be damaged due to lack of lubrication. Travel motor reducer damaged due to lack of oil How to check if there is no oil? There is usually an oil gauge above the swing motor. Usually, the oil gauge can be pulled out to see if the gear oil level is between the two observation holes at the bottom of the scale. The small hole above the scale represents the highest liquid level, and the lowest hole represents the lowest liquid. Position, the liquid level between the two observation holes is normal. When the liquid level is lower than the lowest hole, the gear oil should be replenished in time. How to change gear oil for rotary motor reducer? Oil change time: After the oil change period is reached, it is necessary to replace the new gear oil in time. Generally, after the excavator stops working for half an hour, the gear oil is at the bottom of the reducer and the oil temperature will not be too high. Too low, the old oil can be discharged as much as possible. After the old oil is cleaned, tighten the oil drain screw, and then add new gear oil from the gear oil filling port. At this time, pay attention to observe the vernier scale to avoid too little or It is an excessive amount of added gear oil. Filling the gear oil from the oil observation port How to add and replace gear oil for the travel motor reducer? Before stopping, you can support the unilateral walking in turn, so that the driving wheel is turned to the position suitable for refueling (there is an English logo on the general driving wheel, and the English is stopped immediately). The next step is to drain the oil. Since the oil temperature may not drop completely at this time, there is high temperature and high pressure gear oil inside the reducer. Unscrewing the lowermost oil drain bolt directly may cause the oil to be ejected and dangerous. When oil is used, the three bolts can be unscrewed from top to bottom, which makes the operation safer and helps to drain the old oil. Before unscrewing the lowermost oil drain bolt, you can use a basin and other containers to place the oil under the reducer. The old oil can be sold to the old oil recovery mechanism without polluting the environment. After draining the old oil, tighten the lowermost oil drain bolt and refuel from the top gear oil filling hole. For large digging, you can dig a hole in the middle of the mineral water bottle for filling. For some small digging, because the gear oil filling hole is relatively small, the mineral water bottle stopper does not enter, you can use this oil funnel to fill, the lower part of the funnel is a hose, when the gear oil overflows from the middle observation hole, it means When the liquid level reaches the rated value, tighten all the bolts. Of course, not every brand of drive motor reducer is three bolts, some only two, the same as the three bolts, but the middle hole is responsible for the task of refueling and observation, adding gear When the oil overflows from the oil hole, it means that the oil level is reached. The so-called three-point extension and seven-point maintenance, daily inspection and maintenance is very important for a machine. Gear oil plays an important role as a lubricating medium for excavator travel and rotary reducers. Check and replenish and replace gear oil in time to avoid the walking and turning failure of the excavator during work, so that your excavator can live for a few more years~

The breaker is often replaced with a bucket at the job site, but it must be operated in strict accordance with the operating procedures during installation and disassembly. The following small series introduces you to the installation and disassembly procedures of the breaker. 1. Move the construction machinery to a flat and open place and must pay attention to the presence of moisture, sludge and dust, etc., which are easily contaminated with hydraulic oil. Turn off the engine and note that when the hydraulic cylinder is pressurized, the pressure should be released first. 2. The shut-off valve installed at the end of the machine body is rotated by 90° to prevent the hydraulic oil from flowing out. 3. Remove the hose connector on the construction machine and recover the hydraulic oil flowing out and return it to the hydraulic tank. 4. Pay attention to avoid dust and sludge entering the hydraulic pipeline. Please close the hose and pipeline with hose plug and integrated cover to keep the oil system clean. The high and low pressure hoses are fixed to protect them from dirt. 5. When the hammer is to be removed, the two pins connecting the breaker and the boom can be extracted first. When working outdoors, place the breaker on a wooden block to isolate it from the ground and cover it outside. 6. When the breaker is not used for a long time (more than three weeks) 1) Please clean the outside first. 2) Remove the drill rod and apply it to the rust preventive oil, then store it, and then release the nitrogen gas before pushing the piston into the hydraulic cylinder. 3) Put the parts of the breaker into the lubricating oil and then put the rod back. After that, you can keep it on the bench. 7. When the hammer is to be reinstalled for work, it is necessary to reverse the above-mentioned unloading procedure. Since the construction machine is very likely to contaminate the hose and the pipeline after performing other operations, it should be replaced first. Clean the hydraulic lines and connectors.

What should I pay attention to when purchasing excavator ripper? In the case of earthwork or open-pit ore collection, when the soil is hard and the weathered stone layer is encountered, the excavator will be very weak when carrying out the excavation work. At this time, users can take blasting or replace the breaker before excavating work. However, the state has reduced the hidden dangers for social stability, and the control of explosives is very strict. At the same time, the chemical nature of the explosives is not 100% stable, and there is considerable danger in the operation process. At this time, the ripper will come in handy. Below, I will introduce you to the use and purchase knowledge of ripper. What is a ripper? The ripper is a welded structural member, also known as a tail hook. It consists of several parts such as main board, ear plate, ear seat plate, tooth root, tooth, and reinforcing plate. Some will also add a spring steel or guard plate in front of the main board to increase the wear resistance of the main board. The shape of the ripper produced by each manufacturer is different. There is no uniform standard, but the plane cutting angle of the tip of the tooth should be a circular arc with the line in front of the main board. The length of the arm varies according to various models. The radius is also different. Why is it designed to be curved? Because the arc is not easily deformed by external force, the arc has stability, and it can be seen that the roof of many European buildings is like this. At the same time, because the tooth tip and the main plate are curved, it is easier to fight. The teeth are introduced into the motherboard to enter the ground for destruction work. Optional ripper for each tonnage model The conventional matching method of ripper can be divided into three categories: 20-ton machine is less than 30-ton machine, 30-ton machine is 35-ton machine, and 35-ton machine is one class. A simpler alternative is to use a small-headed pin with a diameter of 80 and a choice of 20 tonnage; a diameter of 90 to 100, a choice of 30 tonnage; a diameter of 100 to 110, for a 35 tonnage. Tonnage is bigger, choose... Sorry, there may not be a regular, you need to go to the factory to order.

In the excavation process of the foundation pit of Nanjing High-speed Railway Station, a large amount of weathered rock needs to be broken. The construction method of the traditional excavator configuration breaker is challenged: the breaker can only break the weather fossil from point and surface, and the efficiency Low; due to the limited area of the foundation pit, multiple excavators are working in the foundation pit, which affects the loading. The more difficult the project, the more the application of new construction methods and new attachments, when a contractor purchased the ripper for the project. Unlike the single-point operation of the breaker, the ripper can crush the weathered rock piece by piece, and the work efficiency is greatly improved, and several other contractors are pushed out of the construction site. Whether the penetration rate of attachments can be improved depends on its return on investment. In certain specific conditions, more specialized accessories can subvert the efficiency of the work, and the contractor earns a lot of money. Ripper: Also known as ripper, the ripper has a workable device that is broken and loosened. Divided into excavator ripper and bulldozer ripper, excavator ripper is also called bucket hook, bulldozer ripper is also called tail hook, generally single tooth, also has two or three teeth, excavation and cutting force. An integrally cast loose tooth with an ear hole in the upper part, respectively hinged to the arm and the bucket cylinder, the front end of the tooth tip has a hard alloy surfacing tooth cap, and when the piston rod of the hydraulic cylinder is extended, the tooth tip is forced to be inserted And turn the soil. It is used to excavate cracked rocks, crush frozen soil, and also used to excavate asphalt pavement. It is suitable for the crushing and splitting of hard soil, secondary stone and weathered stone, so as to facilitate the use of excavation construction, the stratification of working conditions is better, the bucket is hard to dig, and the hammer is a little easy to waste, then the ripper is used. It will greatly improve the construction efficiency, first use the ripper to separate the soil layer or the weathered stone layer, and then use the quick connector to switch the bucket loading! Jining Changsong Construction Machinery Co., Ltd. is a modern enterprise specializing in R&D, manufacturing and sales of excavator front-end devices. The company mainly produces: various types of excavator front-end attachments such as broken hammer, quick connector, ripper, tamping machine, wood grabber, stone grabber and hydraulic clamp. At the same time, we can customize special devices for different working conditions according to the customer's working environment requirements. We are committed to building a professional manufacturer of excavator front-end devices. You are welcome to call us and negotiate. For more information,please look at this web. https://chsmachinery.en.alibaba.com/

Excavator wiper The frequency of the wiper of the excavator is not as high as that of the car. On the one hand, the visual field of the excavator is better, the light rain can't stop the driver's sight. On the other hand, if the weather is very bad, the excavator will be safe for the sake of safety. Direct work. Of course, if the safety factor of the construction conditions is high, and it happens to meet the heavy rain and other weather, it is still necessary to catch up with the project. At this time, the wiper will be of great use! But how the idle wiper hasn't responded to it! Fault phenomenon The owner reacts, because the rainy season has to catch up with the construction as usual, so the owner presses the wiper and the water spray switch, but the monitor does not have the wiper and water spray symbol, because the excavator wiper has a low opening frequency, so the owner can not determine where it is. broken. Cause Analysis ▊ In order to prevent the wiper from being damaged by brushing in the large windshield pull-up state, a safety switch is usually installed in the left front of the cab. ▊If the windshield is pulled up and the safety switch is closed, the wiper controller will close the wiper system and the wiper will not move. The excavator of the main engine is the Kobelco eight-machine type. The six-type machine also has this switch, but it is installed behind the cab. ▊ Because the switch is very concealed, it can not cause everyone's attention and ignore it. It will even lead the maintenance personnel and the owner's maintenance ideas to other parts of the wiper system, which will bring great repairs to the maintenance. Processing method ▊Check if the big windshield is locked. The big windshield needs to be pushed forward after it is put down to lock it. ▊Check if the safety switch is disconnected after the large windshield locks. ▊If the safety switch is not disconnected, adjust the pusher next to the safety switch until the safety switch can be successfully disconnected. The problem will be solved! to sum up: There are tens of thousands of parts on the excavator, especially the small parts such as the wiper safety switch. The frequency of opening is very low, and even if it is not used for a long time, the owner will inadvertently ignore it. An oolong fault. Of course, this problem also hopes to arouse the resonance of your friends. Many times, it is not enough to have good driving skills. Knowing the excavator and familiarizing with the excavator can make you a real old driver! In this way, in the judgment of many simple faults and oolong faults, it can be faster and more accurate!

The hydraulic clamp is like a big mouth of a blood bowl used to bite things. With its teeth, it can bite a solid reinforced concrete building and hard metal to achieve the purpose of cutting, crushing and dismantling. The efficiency is two to three times that of the broken hammer, quite domineering! The hydraulic clamp consists of a caliper body, a hydraulic cylinder, a movable cymbal and a fixed cymbal, and a slewing mechanism. The external hydraulic system provides oil pressure to the hydraulic cylinder, so that the movable jaws and the fixed jaws of the hydraulic smashing tongs are combined one by one to achieve the effect of smashing objects. The slewing mechanism can be easily operated at the most suitable angle. It is the same as the installation principle of the hydraulic breaker. The pin hole of the hydraulic crusher is connected with the pin hole of the front end of the excavator, and the pipe on the excavator is connected with the hydraulic crusher. After the installation, the crushing operation can be performed. It is. It seems that the power is huge. Demolition of excavators is a very common project. At present, we often see the destruction of load-bearing walls or concrete frames directly with buckets or breakers to collapse the building. Although this method is simple and straightforward, it will generate a lot of dust, pollute the surrounding environment, and the risk is high. In response to this condition, many professional engineering teams have equipped hydraulic tongs for the excavator. In the process of demolishing a building, bulk materials can be removed from the building and then subdivided. Professional hydraulic pliers bring four advantages, one is to reduce the pollution of dust to the environment, the second is to reduce the risk, the third is to facilitate the recycling and reuse of materials, and the fourth is that its blade is forged from hot-rolled steel. Made of high strength, with the powerful hydraulic system of the excavator, the removal efficiency is extremely high. Such a super long arm excavator is demolished from the building and can be slowly removed from the top of the building. In addition, the super power of the hydraulic clamp is much safer and more efficient than using the cannon hammer below. But the cost of hydraulic clamps is also much more expensive than broken hammers. The construction site pays attention to the dust protection. When the building is demolished, it should be sprayed with water to reduce dust. In addition, the crane has to hang the curtain to cover the splash of the stone. The hydraulic clamp is like a big mouth of a blood bowl used to bite things. With its teeth, it can bite a solid reinforced concrete building and hard metal to achieve the purpose of cutting, crushing and dismantling. The efficiency is two to three times that of the broken hammer, quite domineering! The hydraulic clamp consists of a caliper body, a hydraulic cylinder, a movable cymbal and a fixed cymbal, and a slewing mechanism. The external hydraulic system provides oil pressure to the hydraulic cylinder, so that the movable jaws and the fixed jaws of the hydraulic smashing tongs are combined one by one to achieve the effect of smashing objects. The slewing mechanism can be easily operated at the most suitable angle. It is the same as the installation principle of the hydraulic breaker. The pin hole of the hydraulic crusher is connected with the pin hole of the front end of the excavator, and the pipe on the excavator is connected with the hydraulic crusher. After the installation, the crushing operation can be performed. It is. It seems that the power is huge. Demolition of excavators is a very common project. At present, we often see the destruction of load-bearing walls or concrete frames directly with buckets or breakers to collapse the building. Although this method is simple and straightforward, it will generate a lot of dust, pollute the surrounding environment, and the risk is high. In response to this condition, many professional engineering teams have equipped hydraulic tongs for the excavator. In the process of demolishing a building, bulk materials can be removed from the building and then subdivided. Professional hydraulic pliers bring four advantages, one is to reduce the pollution of dust to the environment, the second is to reduce the risk, the third is to facilitate the recycling and reuse of materials, and the fourth is that its blade is forged from hot-rolled steel. Made of high strength, with the powerful hydraulic system of the excavator, the removal efficiency is extremely high. Such a super long arm excavator is demolished from the building and can be slowly removed from the top of the building. In addition, the super power of the hydraulic clamp is much safer and more efficient than using the cannon hammer below. But the cost of hydraulic clamps is also much more expensive than broken hammers. The construction site pays attention to the dust protection. When the building is demolished, it should be sprayed with water to reduce dust. In addition, the crane must be covered with a curtain to cover the splash of the stone. For more information,please lookthrough the following: http://chsmachinery.bossgoo.com/

The reason why the hydraulic oil of the excavator is black: One is to contain metal impurities; Second, the working environment is not good, and the external pollutants enter the hydraulic oil. Let's take a look at the source of iron filings and how to prevent them: 1 is most likely the grinding debris generated by the high-speed rotation of the pump. You should consider all the components that rotate with the pump, such as the wear of bearings, volume chambers, etc. 2The hydraulic valve spool runs back and forth, and the grinding oil generated by the cylinder runs back and forth, but this phenomenon does not occur in a short time; 3Because it is a new machine, a lot of iron filings will be generated when the equipment is running in. I don't know if you will empty the hydraulic oil in the fuel tank when you change the oil, and after using the new oil circulation system, wipe the oil tank all with cotton cloth and then clean it. Add new oil, if not, there may be a lot of iron filings left in the fuel tank, which will also cause the new oil to be polluted and blackened; Look at the external environmental impact: You should check if your hydraulic system is closed and the breathing hole is intact; check the exposed parts of the hydraulic part of the equipment to see if the seal is intact, such as the dust ring of the cylinder; 1 did not change when changing hydraulic oil; 2 oil seal aging; 3 Excavator working environment is too bad, causing the filter element to block; 4The hydraulic pump has a large amount of air bubbles in the air; 5The hydraulic oil tank is connected to the air. The dust in the air will enter the fuel tank after the use of the impurities for a long time. The oil will definitely be dirty; 6 oil products do particle size test in line with cleanliness requirements. Can be excluded is dust pollution. It can be said that the temperature of the hydraulic oil is higher! It can be replaced with high-quality hydraulic oil, check the oil return filter, heat-dissipating oil circuit, and focus on the radiator of hydraulic oil! It is necessary to maintain and maintain according to the regulations! The reason why the breaker hydraulic oil is black: The breaker causes the black oil of the excavator hydraulic system not only caused by dust, but also caused by the irregularity of the filling of the butter. For example, when the distance between the bushing and the steel brazing is more than 8 mm (the little finger can be inserted), it is recommended to change the bushing. On average, one inner casing needs to be replaced for every two outer casings. When replacing the hydraulic fittings such as oil pipes, steel pipes and oil return filters, the breakers need to clean the dust or debris at the interface before releasing them. When adding butter, you need to lift the breaker and press the steel into the piston. You only need to add half of the standard grease gun for each filling. (Because if the steel is not pressed when the grease is added, the butter will be placed at the upper limit of the steel groove. When the steel is working, the butter will directly hit the main seal of the breaker. The reciprocating motion of the piston brings the butter into the cylinder of the breaker, and then the hydraulic oil in the cylinder of the breaker is mixed into the hydraulic system of the excavator, which is the deterioration of the hydraulic oil, blackening) Approach: 1. Use the buttery posture correctly. 2. Install the oil return filter unit. 3. Install a water spray device to reduce external dust. 4. The upper and lower bushings are worn too much and the bushing is replaced at the right time. 5. The intake check valve is broken or blocked, and the check valve is checked regularly. 6. Replace the dust seal in time. 7. Use the breaker correctly (do not always hit).

Excavator braking is one of the faults that users can't ignore. What are the common factors that cause the problem of braking? Here are 8 reasons for everyone to summarize. 1. Engine power does not match hydraulic pump power The brake failure is of course closely related to the engine, which is usually caused by a drop in engine power. If the engine power is lower than the power required by the hydraulic pump, check the fuel system and intake system for problems. In addition, problems with the oil pump can also cause engine power to drop, usually requiring a school oil pump, replacing the plunger nozzle, and the like. 2. Insufficient engine intake When the engine intake of the excavator is insufficient, it can also cause a brake. There are also many reasons for insufficient intake air, such as serious wear of the supercharger, blockage of the air filter, incomplete operation of the supercharger, and leakage of the exhaust manifold. The supercharger needs to be replaced when necessary. 3. Braking caused by heavy load Insufficient oil supply is also one of the causes of the digging machine. When the engine is working under heavy load for a long time, there will be insufficient oil supply. At this point, the pump flow can be adjusted to eliminate the brakes. Remember not to work under heavy load for a long time. 4. Oil problem Excavator brake failure is related to oil. Excessive oil impurities can cause oil blockage, filter blockage, too much oil in the tank, and reduced engine power. Long-term use of oil with a lot of impurities can damage the excavator and cause a brake. In addition, if the selected oil type does not match and the parts that are not matched are installed, it may cause a brake. It is recommended that you choose regular accessories and high quality oil. 5. Fuel system problems If long-term use of inferior oil causes a large amount of impurities at the bottom of the tank, the tank should be cleaned regularly to clear the oil line pipe and the location of the oil connection. In addition, the oil-water separator should not be ignored. The drain valve at the bottom should be opened regularly to release water. Otherwise, the excessive water storage will cause the excavator to brake. 6. The big pump regulator is dirty caused by the brakes When working for a long time and neglecting the grease formed around the large pump regulator, the regulator is clogged, causing the large pump regulator to fail to work properly, causing a brake phenomenon. At this point, you can remove it for cleaning or replacement. 7. The circuit is abnormal and there is a car phenomenon. The oil circuit inspection is important and the circuit cannot be forgotten. Sometimes when the circuit is abnormal, it will cause the machine to brake. When there is a brake, first check if it is an engine problem or a hydraulic system problem. If both of them are ok, check the electrical components for abnormalities. 8. Parts wear aging In the process of troubleshooting the excavator brakes, the wear and tear of the components must not be ignored. When there is no problem with the engine and pump power, you also need to check whether the engine cylinder liner piston is worn, whether there are oil leakage leaks in other parts of the engine and hydraulic system, and if problems are found, they need to be solved in time.