Which gentleman knows which parts of the excavator are maintained?

Regular maintenance of the excavator can reduce the failure of the machine and prolong the service life of the machine; Reduced machine downtime; Improve work efficiency and reduce operating costs. Fuel, lubricants, water and air can be managed to reduce breakdowns by 70 percent.

The management of fuel should select different grades of diesel according to different ambient temperatures; Diesel fuel should not be mixed with impurities, dirt and water, otherwise the fuel pump will wear out prematurely; The high content of paraffin and sulfur in low-quality fuel oil can cause damage to the engine; After the daily operation, the fuel tank should be filled with fuel to prevent water droplets on the inner wall of the fuel tank; Open the drain valve at the bottom of the fuel tank to drain water before daily operation.

Management of other oilsOther oils include engine oil, hydraulic oil, gear oil, etc.; Different grades and different grades of oil cannot be mixed; Different varieties of excavator oil are added with different additives that play a chemical or physical role in the production process; It is necessary to ensure that it is clean with oil to prevent debris (water, dust, particles, etc.) from being mixed; The oil label is selected according to the ambient temperature and application. If the ambient temperature is high, the oil with high viscosity should be selected, and the oil with low viscosity should be selected when the ambient temperature is low. Gear oil has a relatively high viscosity to accommodate larger transmission loads, and hydraulic oil has a relatively low viscosity to reduce fluid flow resistance.

Grease managementThe use of lubricating oil (butter) reduces wear and tear on moving surfaces and prevents noise. When the grease is stored and stored, it should not be mixed with dust, sand, water and other impurities; It is recommended to use lithium-based grease G2-L1, which has good anti-wear performance and is suitable for heavy loads; When filling, try to squeeze out all the old oil and wipe it clean to prevent the sand from sticking.

The maintenance of the filter element plays the role of filtering impurities in the oil or gas circuit, preventing it from invading the system and causing failure; All kinds of filter elements should be replaced regularly in accordance with the requirements of the (operation and maintenance manual); When replacing the filter element, check whether there is metal attached to the old filter element, and if metal particles are found, it should be diagnosed and improved in time; Use a pure filter that complies with the machine's specifications.

Due to the busy and tiring daily work of excavator operators, they often overlook some details and wait until there is a fault before repairing. So today I will introduce you to some excavator maintenance tips, I hope it will be helpful to you.

1. Oil filter

The oil filter is a low-maintenance component of the excavator, but it plays a significant role in the overall performance of the excavator. Strengthen the cleaning of the oil filter and replace the filter element in time to avoid the short-term deterioration of the oil. Increasing the cleaning and maintenance of the crankshaft ventilation device in daily maintenance can also strengthen the maintenance of diesel engines.

Second, the oil collector

Check the oil collector for organic oil leakage. phenomenon, check whether the float head is clean and clean, and there is no oil. If the organic oil leaks, you can drill a small hole next to the float head to clean out the leaked oil, and then weld the small hole.

Because oil gets into the float head, it will cause the filter to sink. When the filter sinks to the bottom of the machine, the deposited dirt is sucked up, causing the filter and oil ducts to clog.

3. Control the temperature

It is not only necessary to control the temperature of the engine, but also to pay attention to whether the oil temperature and water temperature are normal, and do not add cooling water when starting, which will cause the radiator to boil, which will cause great damage to the engine.

Fourth, crankshaft and bearing

Routinely check the wear and tear of the crankshaft and bearings, and whether the screws are tightened, and add lubricating oil as appropriate. If the wear and tear of the parts is severe, the parts need to be replaced. At the same time, the oil drain plug on the filter housing should be checked frequently to clean up the dirt.

5. Coarse filter

First, turn the handle and remove the dirt from the primary filter filter, then start cleaning the individual parts of the filter to break it down and clean it thoroughly. Check whether the filter element of the system filter has reached the replacement period and replace it. Then listen to whether the rotor of the fine filter makes a humming sound when the engine rotates at low speed.

If you can't hear it, you need to overhaul the rotor, which may be due to too many foreign objects and need to be cleaned thoroughly.

6. Air filter

The air intake system of the engine is mainly composed of two parts: the air cleaner and the air intake. Depending on the use case, the air cleaner should be cleaned regularly, and the method used is to blow high-pressure air from the inside to the outside to blow the dust out of the filter. Since the air filter is paper, it is important to pay attention to the air pressure not to be too high when blowing, so as not to damage the filter.

The air filter element generally needs to be replaced after 3 times of cleaning, and cannot be used for a long time.

7. Water tank

The water tank is a part of the service that is often overlooked by the operator, because the tank is filled with water, so it is rarely cleaned by hand in daily work. Rust and fouling of the water tank of its fast engine are the most common problems. Rust and limescale can limit the flow of coolant through the cooling system, reduce heat dissipation, and cause engine overheating or even engine damage.

Oxidation of the coolant can also form acids that can corrode the metal parts in the tank, causing the tank to break and leak. Regularly use the water tank to clean the water tank with a strong and efficient cleaning agent to remove rust and scale in it, which can not only ensure the normal operation of the engine, but also prolong the overall life of the water tank and the engine.

Excavator maintenance is a meticulous job, the excavator has been in the work, so relatively speaking, maintenance is still very important, anti-wear, pressure-resistant, temperature control, are more important, with Marty M can give the excavator an ultimate maintenance, anti-wear, pressure-resistant, effective temperature control, and can penetrate into the engine, forming a layer of metal protective film.

Replace the oil filter in strict accordance with the number of hours. Regularly inspect the pipelines everywhere, and butter the tracks and movable joints for maintenance.

1. Daily inspection and visual inspection: visual inspection should be carried out before the starter vehicle. Thoroughly inspect the surroundings of the locomotive and the bottom in the following order:

1. Whether there is leakage of organic oil, fuel and coolant.

2. Whether there are loose bolts and nuts.

3. Whether there are wire breaks, short circuits and loose battery joints in the electrical circuits.

2. Check after starting, 1. Check whether the horn and all instruments are in good condition.

2. The starting state, noise and exhaust color of the engine.

3. Whether there is leakage of organic oil, fuel and coolant.

3. For the management of fuel, different grades of diesel should be selected according to different ambient temperatures; Diesel fuel should not be mixed with impurities, dirt and water, otherwise the fuel pump will wear out prematurely; The high content of paraffin and sulfur in low-quality fuel oil can cause damage to the engine; After the daily operation, the fuel tank should be filled with fuel to prevent water droplets on the inner wall of the fuel tank; After the engine has run out of fuel or the filter has been replaced, the air in the road must be exhausted.

Fourth, the maintenance of the filter element, the filter element plays the role of filtering impurities in the oil or gas circuit, preventing it from invading the system and causing failure; All kinds of filter elements should be replaced regularly in accordance with the requirements of the (operation and maintenance manual); When replacing the filter element, check whether there is metal attached to the old filter element, and if there are metal particles, diagnose and take improvement measures in time; Use a pure filter that complies with the machine's specifications.