Industry News

Precautions for Hydraulic Excavators

2021-08-04

1. Before the excavator starts, check the environmental safety and clear the obstacles on the road. Unrelated persons should leave the excavator and then raise the bucket. [2] 2. After the preparatory work is over, the driver should first sound the horn, and then operate the excavator to start. 3. Before operating the walking bar, check the direction of the track frame and try to make the excavator move forward. If the driving wheel is forward, the walking bar should be operated backward. 4. When the excavator is reversing, pay attention to the space behind the vehicle, pay attention to the blind area behind the excavator, and ask someone to command and assist if necessary. 5. If the excavator starts in the low speed range, the engine speed will suddenly increase, so the driver should operate the walking rod carefully. 6. Walking speed of hydraulic excavator-high or low speed can be selected by the driver. When the selector switch is at the "0" position, the excavator will travel at low speed and with high torque; when the selection is at the "1" position, the excavator's traveling speed will automatically increase or decrease according to the working pressure of the hydraulic traveling circuit. For example, the excavator can choose high speed when walking on flat ground; when walking uphill, choose low speed. If the engine speed control panel is set below the middle engine speed (about 1400r/min), even if the selector switch is at the "1" position, the excavator will still run at a low speed. 7. The excavator should walk on flat ground as much as possible, and avoid placing the upper turntable on its own or manipulating it to rotate. 8. When the excavator is walking on bad ground, it should be avoided that rocks hit the walking motor and crawler frame. Mud, sand and stones entering the crawler venue will affect the normal walking of the excavator and the service life of the crawler. There are also excavators working in many mines. There are many rocks. At this time, pay attention to the chassis and four wheels of the excavator, and pay attention to whether there is any looseness or damage. Check the tension of the track, it is better than the tension when it is on flat ground. Working on mountainous terrain, the working device of the excavator will be damaged more quickly. Pay attention to the use of reinforced working device of the excavator and replace it in time. 9. Try to avoid the excavator wading and walking. When you must wading, you should first check the underwater ground conditions, and the water surface should not exceed the upper edge of the supporting roller. Some excavators work by the sea, and some work in the sea. In this case, after the excavator is finished working, be sure to rinse the parts of the excavator that have been in contact with salt water with clean water, and pay more attention to whether the electrical parts are corroded. After the cleaning is completed, conditionally use oil to protect the exposed metal, and then lubricate the various working devices and components of the excavator, and check whether the components are loose or damaged. If found, they must be dealt with in time. If you do not pay attention to the maintenance work of the excavator working at the seaside, it may cause the metal of the excavator to rust, which will greatly affect the working state of the excavator. 10. When the excavator is walking on the slope, ensure the track direction and ground conditions, so that the excavator can drive as straight as possible; keep the bucket 20-30cm away from the ground, if the excavator is slipping or unstable, immediately lower the bucket; when the engine When stalling on a ramp, lower the bucket to the ground, place the control lever in the neutral position, and restart the engine.