Excavator’s “six forbidden” and “four major maintenance”
I believe that everyone knows that excavators are the main machinery in engineering construction. It has the advantages of wide use, excellent functions, great excavation power, convenient handling, etc., and it plays a role in improving the construction speed and reducing the labor intensity of workers. The more important the role.
When the excavator is not paying attention to the operation, there may be a safety accident, which is not only related to the safety of the driver but also to the safety of others.
Remind you of the factors you need to be aware of when using an excavator:
When using excavator work, it is forbidden for anyone to push up and down the excavator and transfer articles, and it is not allowed to maintain while working; do not adjust the engine (speed governor) and hydraulic system and electronic control system at will; pay attention to selecting and creating reasonable work. Face, it is strictly forbidden to dig holes.
When the excavator is unloading, it should be carried out after the dump truck stops. When the unloading does not collide with any part of the dump truck, the bucket height should be lowered; the bucket is crossed from the top of the dump truck cab. The most important considerations encountered during the training of Yantai excavators.
It is forbidden to use a bucket to crush a solid object; if large stones or hard objects are encountered, it should be cleaned before continuing to work; it is forbidden to excavate the rock of level 5 or above that has been blasted.
It is forbidden to arrange the excavator in the upper and lower excavation sections at the same time; when the excavator moves in the working plane, the ground should be leveled and the obstacles in the passage should be removed.
It is forbidden to jack up the excavator by fully extending the bucket cylinder. The excavator cannot travel horizontally or slewing when the bucket does not leave the ground.
It is forbidden to use the excavator boom to drag the object laterally; the hydraulic excavator cannot be excavated by the impact method.
So what can we do to reduce the problem of the machine and extend the service life of the excavator bucket? Here are some of the major maintenance methods.
According to the ambient temperature, choose different grades and qualified fuel. Otherwise, the inferior fuel with high sulfur content will cause damage to the engine; the diesel oil should not be mixed with impurities, dirt and water, otherwise the fuel pump will wear prematurely; the excavator driver is required to fill the fuel tank after the daily operation, avoiding the fuel tank Water droplets are generated on the inner wall; the drain valve at the bottom of the fuel tank is turned off before the daily operation.
Management of engine oil, hydraulic oil and gear oil
Do not mix oils of different grades and grades; ensure oil cleaning to avoid mixing of debris (water, dust, particles, etc.); use different grades of oil according to ambient temperature and use, and use high viscosity oil when the ambient temperature is high. If the ambient temperature is low, the oil with relatively small viscosity is used; the viscosity of the gear oil is large to conform to the larger transmission load; the viscosity of the hydraulic oil is small, and the purpose is to increase the resistance of the liquid activity.
Smooth grease management
Smooth grease reduces wear on sports surfaces. When storing smooth grease, be careful not to mix dust, sand, water and other impurities. When filling, try to squeeze out all the old oil and wipe it clean to avoid sand adhesion.
The filter element acts as a filter to filter impurities in the oil path or gas path, preventing impurities from intruding into the parts and causing malfunctions; it is necessary to use a filter element suitable for the machine; various filter elements should be replaced periodically according to the requirements of the operation and maintenance manual. When replacing the filter element, Check if metal can adhere to the old filter element. If metal particles are found, it should be cleaned in time.
In addition, when the excavator is out of order and cannot work, do not continue to use it to avoid unnecessary damage.
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