1. Excavator operation technology

First, check the surrounding conditions. During slewing operation, be aware of the surrounding obstacles and terrain, and operate safely; during operation, confirm the front and rear directions of the crawler belt to avoid tipping or impact; try not to face the final drive in the direction of excavation, otherwise it is easy to damage the walking Motor or hose; when working, ensure that the left and right crawlers are in full contact with the ground to improve the dynamic stability of the machine.

2. Effective mining method

When the angle between the bucket cylinder and the connecting rod, the arm cylinder and the arm is 90 degrees, the digging force is the largest; when the bucket tooth and the ground maintain an angle of 30 degrees, the digging force is the best, that is, the soil cutting resistance is the smallest; When digging with a stick, it should be ensured that the stick angle ranges from 45 degrees in the front to 30 degrees in the back. Using the boom and bucket at the same time can improve digging efficiency.

3. Digging for rocks

Using a bucket to excavate rocks will cause great damage to the machine and should be avoided; when it is necessary to excavate, the position of the body should be adjusted according to the crack direction of the rock so that the bucket can be smoothly shoveled in and excavated; insert the bucket teeth into the cracks in the rock In the middle, use the digging force of the stick and bucket to dig (pay attention to the slippage of the bucket teeth); the unbroken rock should be broken first and then excavated with the bucket.

4. Slope leveling operation

When performing plane trimming, the machine should be placed flat on the ground to prevent the body from shaking. It is necessary to grasp the coordination of the movements of the boom and stick, and controlling the speed of the two is very important for plane trimming.

5. Loading operation

The machine body should be in a horizontal and stable position, otherwise it is difficult to accurately control the unloading of the slewing, thereby prolonging the operation cycle time; the machine body and the truck should keep an appropriate distance to prevent the tail of the body from colliding with the truck when turning 180 degrees; try to turn left to load, so that The field of view is wide and the operation efficiency is high. At the same time, the rotation angle must be grasped correctly to reduce the time for turning; the position of the truck is lower than that of the excavator to shorten the lifting time of the boom, and the line of sight is good; first load sand and gravel, Then place large stones, which can reduce the impact on the car.

6. Work in soft areas or in water

When working in soft ground, you should understand the looseness of the soil, and pay attention to limit the excavation range of the bucket to prevent accidents such as landslides and landslides and deep subsidence of the vehicle body.

When working in water, pay attention to the allowable water depth range of the car body (the water surface should be below the center of the supporting sprocket); if the water level is high, the inside of the slewing ring will be poorly lubricated due to the entry of water, and the engine fan blades will be broken due to water impact. Damage, electrical circuit components short circuit or open circuit due to water intrusion.

7. Hoisting operation

When using a hydraulic excavator for hoisting operations, you should confirm the surrounding conditions of the hoisting site, use high-strength hooks and wire ropes, and use special hoisting devices as much as possible when hoisting; the operation method should choose the micro-operation mode, and the action should be slow and balanced; The length is appropriate, too long will make the hanging object swing larger and it is difficult to control accurately; the bucket position must be adjusted correctly to prevent the steel wire rope from slipping; the construction personnel should try not to get close to the lifting object to prevent danger due to improper operation.

8. Smooth operation method

During operation, the stability of the machine can not only improve work efficiency and prolong the life of the machine, but also ensure safe operation (put the machine on a relatively flat ground); the stability of the drive sprocket on the rear side is better than that on the front side, and It can prevent the final drive from being impacted by external force; the wheelbase of the crawler on the ground is always greater than the wheelbase, so the stability of the forward work is good, and the sideways operation should be avoided as much as possible; the excavation point should be kept close to the machine to improve the stability and excavator ;If the digging point is far away from the machine, the operation will be unstable due to the forward movement of the center of gravity; the stability of lateral digging is worse than that of forward digging. distance to make the operation balanced and efficient.