Three-machine and seven-cent maintenance, this is the management of construction machinery people often say a word, meaning that no matter what brand of equipment, maintenance is essential. Give you an example, two identical 6 tons of small dug, in three years after the maintenance of the car price can be higher than forty thousand or fifty thousand, which is why the price of two mobile phones one price one reason, because the focus depends on the condition of the car.
The routine maintenance methods are all understood. In the excavator's manual, it is clear that the cleaning and replacement time of each maintenance piece is clear. The maintenance of the excavator can be provided in accordance with the instructions of the manual. So today, Ah Xiang is not a conventional excavator maintenance method, but a few small skills, this is not easy to find in the instructions and Baidu, you know how many?
Lubrication oil of support wheel and sprocket wheel
The maintenance of the support wheel and the sprocket should not be known to many people. This part of the maintenance method is generally not labeled in the instructions, and the support wheel and sprocket wheel of some models are not maintenance, so many people will ignore the maintenance of these parts, until the wheel grinding wheel is serious or can not be changed directly.
In fact, many heavy wheels and chain sprockets can be maintained. Let's take a look at this picture first.
There is a small bolt on the sprocket, which can be added to the lubricating oil. The wheel and the chain wheel in the factory will be filled with lubricating oil, but few people will pay attention to the lubricating oil in the later period.
Because the supporting wheels are often covered by soil, slight oil leakage is also difficult to find, oil leakage will cause the inner bearing wear aggravated, shortened life.
Unscrew the screw and use a syringe to add 50 milliliters of oil to each wheel. It can be replaced by the gear oil of a walking and rotary reducer, half a year to a year.
Installation of shaft pin dustproof ring (dust proof seal)
After several years of use, the excavators wear out their axle pins, especially without the equipment of butter before working every day. The excavator is dealing with sand and clay every day, so sand easily enters the axle pin and aggravates wear. Dustproof ring is usually installed at each shaft pin of the working device, but it is also easily damaged, so it is necessary to check and replace it frequently.
There is a finished dust-proof ring on a treasure, which can adjust the tightness and compare it. Of course, there are many alternatives, such as the use of air conditioning belts, and the two pieces of perforated wire fixed.
Also can use rubber pipe (gas tank, pilot hydraulic tubing), wear wire inside and then lock the shaft pin, dust-proof effect is good.
Diesel filter cartridge
Construction machinery for monthly operation is usually supplied by site. We all know that the quality of diesel on the site is not guaranteed, and the diesel oil in Sinopec is somewhat different, so it is necessary to use a diesel filter for long term use of site diesel. This has two main advantages: first, it can provide good protection for the engine and diesel pump, and second, it can extend the life of the original car filter.
It is important to note that the filter cartridge is best installed before the filter core, which is the first filter cartridge that comes first through the fuel tank.
Regularly cleaning the radiator
The summer is coming and some of the excavators' high temperature problems will start again. In fact, many excavators high temperature failure is caused by the radiator, which is a common reason is that the radiator has not been cleaned regularly, accumulating more and more dirt, blocking most of the blades, the bad heat of the radiator caused by the high temperature, these dirt will become more and more difficult to clean later.
So usually in the maintenance of the excavator, it is necessary to clean the various radiators, can use the pressure of water gun pressure to wash, or the use of air pump to wash.
Frequent cleaning of the radiator will not accumulate very thick dirt, cleaning up more convenient, to maintain a better cooling capacity.
The soil in the walking motor
Gear oil for walking gear reducer is usually replaced in 500 hours, which is marked in the excavator's instructions. But the instructions don't tell us when to clean up the trash in the motor. Look at the motor, which has been "submerged" in the dirt.
The sealing performance of the walking motor's cover plate is not so good. The long term "playing mud" or the wading operation can easily infiltrate into the sediment. For a long time, it can even fill the outer space of the walking motor. The sediment will constantly corrode the friction hydraulic tubing and the hydraulic motor. It can be seen that the exterior of the picture tubing joint box motor is full of thick rust, which will greatly shorten the life of the tubing and affect the heat dissipation of the walking motor.
So it is recommended that you open the lid once a year to clean up the mud and put butter on the running motor of the tubing joint box to prevent rust.
