- On construction sites, excavators, as key engineering equipment, undertake important tasks such as excavation, transportation, and crushing. Mastering the excavator operation can not only improve work efficiency, but also ensure operational safety. Whether you are an experienced operator or a novice who has just started working, the following operating precautions will help you improve the use of the excavator and ensure the smooth progress of the project.
- When the excavator is moving, the working device should be retracted as much as possible and close to the center of the machine body to maintain stability; the final drive should be placed at the back to protect the final drive. Avoid driving over obstacles such as stumps and rocks as much as possible to prevent the crawler from twisting; if you must drive over obstacles, make sure that the center of the crawler is on the obstacle.
- When passing over a mound, always support the chassis with the working device to prevent the body from shaking violently or even tipping over. Avoid idling the engine on a steep slope for a long time, otherwise it will cause poor lubrication due to changes in the oil level angle.
- When the machine travels for a long distance, the supporting wheels and the final drive will generate high temperatures due to long-term rotation, the oil viscosity will decrease, and the lubrication will be poor. Therefore, the machine should be stopped frequently for cooling to extend the life of the lower body. It is forbidden to carry out excavation operations by driving force, otherwise excessive load will cause early wear or damage to the final drive, crawler and other dismounting parts.
- When traveling uphill, the driving wheel should be at the back to increase the adhesion of the crawler on the ground. When walking downhill, the driving wheel should be in front to tighten the upper crawler to prevent the body from sliding forward under the action of gravity when parking and causing danger.
- When walking on a slope, the working device should be placed in front to ensure safety. After parking, gently insert the bucket into the ground and put a block under the crawler.
- When walking and turning on a steep slope, the speed should be slowed down. When turning left, turn the left crawler backward, and when turning right, turn the right crawler backward. This can reduce the danger when turning on the slope.
- The hydraulic cylinder is equipped with a buffer device inside, which can gradually release the back pressure near the end of the stroke. If it is subjected to an impact load after reaching the end of the stroke, the piston will directly hit the cylinder head or the bottom of the cylinder, which is easy to cause an accident. Therefore, try to leave a clearance at the end of the stroke.
- Using a rotary action for bulldozing will cause abnormal force on the bucket and the working device, causing distortion or weld cracking, or even pin breakage. This operation should be avoided as much as possible.
- Using the weight of the machine body for excavation will cause abnormal stress state of the slewing bearing, and will also cause strong vibration and impact on the chassis. Therefore, the hydraulic cylinder or hydraulic pipeline should be used to cause greater damage.
- When loading and unloading heavy materials such as rocks, the materials should be unloaded close to the bottom of the truck compartment, or the soil should be loaded first, and then the rocks should be loaded. High-altitude unloading is prohibited to reduce the impact damage to the truck.
- After the excavator enters the construction site, the driver should first observe the geology of the working surface and the surrounding environment. There should be no obstacles within the rotation radius of the excavator to avoid scratches or damage to the vehicle.
- During operation, confirm the front and rear direction of the crawler to avoid tipping or collision. When the crawler is deeply sunken in the mud, put a wooden board under the bucket, use the bottom of the bucket to support the crawler, and then put a wooden board under the crawler to drive the machine out.
- Try not to face the final drive in the excavation direction, otherwise it is easy to damage the travel motor or hose. During operation, ensure that the left and right crawlers are in full contact with the ground to improve the dynamic stability of the entire machine.
- Through the introduction of the above operating precautions, you will be able to use the excavator better, escort the smooth progress of the project and the safety of the operator. Rennuo Machinery is willing to provide customers with professional operation guides and looks forward to working with you to create a better future for engineering construction.
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