Xuanhua Construction Machinery Blog

  The walking mechanism of the   Crawler Bulldozer   carries the full weight of the bulldozer. Responsible for the driving function of the bulldozer. The main damage form is wear. This damage form is concentrated in the following contact parts: the outer surface of the drive wheel tooth and the track pin sleeve; the guide wheel and the track link track surface of the track; the support wheel and the track link track The surface; the track surface of the sprocket wheel and the track link of the track; the contact surface of the track pin and the pin sleeve; the track shoe and the ground. 1. Wear of the track In the walking mechanism of the dry crawler, the crawler is not lubricated, causing wear between the crawler pin and the pin sleeve due to relative movement during the working process. The wear between the pin and the pin sleeve in the track is unavoidable and normal, but this wear will make the pitch of the track extend and make the track too large. This wear and tear...

  Variable speed and forward and backward When shifting into gear, first push the throttle handle forward to the low-speed idling position, and then push the main clutch lever to the forefront to separate the main clutch. Due to the action of the small brake in the main clutch, the power input shaft of the transmission stops rotating . At this time, you can correctly move the shift lever to the required gear, and then put the forward or retreat lever to the forward or backward position. After the gear is engaged, pull the throttle handle backward to increase the engine speed, and connect the main clutch smoothly, and the bulldozer starts to drive. When the  Bulldozer  is driving, the main clutch control lever should be pulled to the rearmost position, not in the semi-engaged position. Because the half-engagement of the main clutch will aggravate the friction lining wear. Bulldozer transmissions generally have 5 forward gears and 4 reverse gears. The advance and retreat ro...

  As an important construction machinery equipment, bulldozers need to be properly maintained in the daily work process, which can not only improve the production efficiency of the equipment but also extend its service life and create more value for customers. Below we will tell you three common knowledge about   Crawler Bulldozer   maintenance. The bulldozer track maintains proper tension Maintenance method of the bulldozer: If the tension is excessive, the spring tension of the guide wheel acts on the track pin and the pin sleeve. The outer circle of the pin and the inner circle of the pin sleeve have been subjected to high compression stress, and the pin and the pin sleeve will wear prematurely during operation. The elastic force of the guide wheel tensioning spring also acts on the guide wheel shaft and the bushing, resulting in a large surface contact stress, which makes the guide wheel bushing easy to grind into a semicircle, the track pitch is easy to elongate, and...

  The   Bulldozer   driver is very important to the daily maintenance of the bulldozer to ensure the safe and effective use of the bulldozer, prevent malfunctions and accidents, and extend the service life of the bulldozer. Your bulldozer is always out of order, so what do you use to make money? So, in order to earn more money, you must do the following ten points: 1. In order to prolong the service life, the car should be stopped when the gear is changed or reversed. 2. Do not perform steering operation under load. 3. When the  Track Type Dozer  is doing the bulldozing operation, the cutting soil is too deep or the rear part is tilted, and the cutting depth should be adjusted in time to keep the bulldozer evenly bulldozing. 4. When the load is large, use a lower speed for operation. Bulldozer 5. Always be in control during exercise. 6. Choose the appropriate gear when going downhill and don't change gear when going downhill. 7. Lift the blade to a proper height...

  During the work of crawler bulldozers, the following safety items should be paid attention to: 1. Check whether the fuel filling point of the  Crawler Bulldozer  is full. Fill the water tank when the water is insufficient. Check the fuel level and when filling the fuel, fireworks are strictly prohibited. 2. Whether the joysticks are normal and in the neutral position, depending on the surroundings, there are no safety hazards. 3. Start the engine at idle speed, check the technical status of the machine, and remove the fault in time if the fault is found, and work only when the oil temperature and water temperature rise to the specified values. 4. When the traction machinery is connected, the lowest reverse gear should be used. 5. It is not allowed to refuel, add water, or adjust the work during driving. During driving, random personnel are not allowed to lean on the door or stand on the wing panel, and they are not allowed to get up and down the bulldozer when it is not...

  Due to the influence of materials, craftsmanship and human factors, various failures will inevitably occur when using   Bulldozers . However, if you can correctly analyze the causes of various failures and take effective preventive measures, you can extend the service life of the machine. 1. Reduce the impact of mechanical impurities Mechanical impurities usually refer to non-metallic substances, such as dust and soil, as well as some metal shavings and wear products produced by the construction machinery itself during use, especially  Low Cost Bulldozer . Once these impurities enter the machine and reach the mating surface of the machine , The danger is great, Bulldozers 2. Reduce the influence of temperature In operation, the temperature of each component has its own normal range. Lower or higher than this range will accelerate the wear of parts, cause lubricant deterioration, and cause changes in material properties. In the process of using construction machinery, fi...

  During the construction of   Track Excavator , rollover is one of the most common accidents. Due to the light and narrow body of the excavator, it is more prone to rollover than a large excavator. How to avoid the side when the excavator is constructed? There are three main points: First, Due to the off-road nature of the Excavator, the excavator can climb steep slopes by rail and work equipment. It can also easily descend downhill. Everyone can easily ignore the dangerous situation. When the mini excavator goes downhill or along the trailer At this time, many drivers will push the front windshield or door frame with their left hand and push the excavator with their right hand. At this time, if the door is open instead of locked, the door will close quickly due to gravity, which is usually Great strength. The handheld on the door frame will be caught. Very serious consequences. Therefore, when the  Wheel Excavator  is working, there is a lock on the door of the exc...