Do these ten things and you won’t be afraid of the heat—tips for excavator maintenance in summer

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(1) High transmission efficiency to fully exert the power of the engine and fuel economy.

(2) The hydraulic system and hydraulic components have sufficient reliability under large load changes and sharp vibration impact.

(3) Adjust the heavy and vibration-resistant cooler to reduce the total heat of the system so that the hydraulic oil temperature does not exceed 80 degrees or the temperature rise does not exceed 45 degrees when the main engine is working continuously.

(4) Since there is a lot of dust on the excavator site, the hydraulic oil is easily contaminated. Therefore, the sealing performance of the hydraulic system must be good, the hydraulic components are less sensitive to oil contamination, and the entire hydraulic system must be equipped with oil filters and dustproof devices.

(5) Use hydraulic or electro-hydraulic servo control devices to enable the excavator to set up an automatic control system, thereby further improving the technical performance of the excavator and reducing the labor intensity of the driver.

The hydraulic system must ensure the following points to meet these requirements:

(1) It must ensure that the excavator boom, dipper and bucket can move independently and cooperate with each other to complete compound movements.

(2) The movement of the working device and the rotation of the turntable can be stopped separately or in combination.

(3) The left and right crawlers of the crawler excavator are driven separately, making the excavator easy to walk and turn flexibly, and can turn on the spot to check the sensitivity of the excavator.

(4) Ensure that all movements of the excavator are reversible and have stepless speed change.

(5) Ensure that the excavator works safely and reliably, and that each actuator (hydraulic cylinder, hydraulic motor, etc.) has good overload protection; the slewing mechanism and the walking device have reliable braking and speed limit; prevent the boom from falling due to its own weight and the whole machine from overspeeding and sliding down the slope.

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