Winter maintenance tips for drilling rigs! "7 points" is all achieved is the strongest rig driver. Maintenance and repair are as important to engineering as people are to food. Good maintenance and repair methods will also greatly extend the service life of construction machinery. Improper maintenance and repair errors, will also cause extreme damage to machinery. For our construction machinery people, most of the time is accompanied by construction machinery, construction machinery has become a part of life, then we must be kind to this partner, after all, it is relying on construction machinery to earn you money to eat. In order to extend the life of construction machinery, the most important thing is to maintain the construction machinery well. The following is a list of seven major maintenance lists of winter construction machinery for everyone, what kind of maintenance have you done for the love machine? For more information about the maintenance of > DTH drilling rig, come to our Hunan Ruisheng Electromechanical Equipment Co., Ltd., our official website is www.hnzega.com。
　　
　　First, eliminate the leakage of hydraulic system
　　
　　In winter, the seals of the hydraulic system of construction machinery will have thermal expansion and contraction, which is easy to cause leakage, especially the parts where O-shaped and rectangular rubber rings are installed, and oil leakage may occur when the temperature continues to be lower than 0 degrees Celsius. In order to avoid leakage failure in the hydraulic system, the seals of the hydraulic system should be systematically inspected before entering the harsh winter, and the seals of the leakage part should be replaced in time.
　　
　　Second, maintain the fuel system
　　
　　1. Replace diesel
in a timely manner 　　
　　After the winter temperature is lower than 0 degrees Celsius, the viscosity of diesel increases, the fluidity becomes poor, it is easy to wax, atomization and combustion are poor, resulting in the startability, power and economy of the fuel engine decrease. In order for the diesel engine to start smoothly in winter, diesel fuel with a lower freezing point should be replaced. When diesel is selected, its freezing point should be 5 degrees Celsius lower than the ambient temperature.
　　
　　2. Adjust the oil supply advance angle< br /> 　　
　　According to the characteristics of winter, the advance angle of diesel engine fuel supply is appropriately adjusted to facilitate the smooth start of diesel engine and reduce the wear and fuel consumption of parts.
　　
　　3. Maintain other parts< br/> 　　
　　During maintenance, all filters should also be thoroughly cleaned, the fuel filter should be replaced, and the sewage from the oil-water separator should be released and cleaned. At the same time, check the working condition of the oil transfer pump to eliminate hidden dangers that may cause failure.
　　
　　Third, replace the oil
　　
　　When winter comes, the viscosity of the oil used in summer increases, the fluidity becomes poor, the friction resistance increases, the crankshaft rotational resistance becomes larger, the wear of the piston and cylinder liner accelerates, and the diesel engine is difficult to start, which affects the power and fuel economy of construction machinery, so it is necessary to replace the winter oil with good fluidity. When changing the oil, try to use high-quality oil. It is not easy to oxidize at high temperature, and does not form deposits in the precision parts of the diesel engine, which can greatly extend the life of the diesel engine.
　　
　　Fourth, maintain the cooling system
　　
　　1. Check the thermostat and insulation device
　　
　　If the diesel engine is often carried out at low temperatures, it will cause poor fuel atomization, fuel dripping into the cylinder and washing the cylinder wall, which will lead to a decrease in the viscosity of the lubricating oil and aggravation of the wear of the diesel engine. For this reason, the working condition of the thermostat should be checked to prevent the diesel engine water temperature from being too low or too high. It should also be checked whether the shutters are working well, and if necessary, cold protection devices should be installed in parts such as water radiators.
　　
　　2. The disposal of water-cooled diesel engines
　　
　　For diesel engines cooled with water in summer, it is best to clean the diesel engine water jacket with scale cleaner first to prevent excessive scale accumulation and affect the heat dissipation of the diesel engine. Once sediment is found in the water radiator, it should be clear immediately. Then replace the qualified antifreeze in time to avoid freezing cracking accidents caused by the sudden attack of the cold current.
　　
　　3. Replace and add antifreeze
　　
　　If the diesel engine has been using antifreeze, you should check whether the antifreeze in the tank is below the standard mark. The replacement cycle of antifreeze is generally 2 years, and it should be replaced in time when the antifreeze appears turbid, deteriorated, foaming, etc. When replacing antifreeze, you should choose a long-term antifreeze with a minimum temperature of 10 degrees Celsius below the minimum temperature in the area of use, and has winter antifreeze, summer anti-boiling, anticorrosion, and waterproof scale. When adding antifreeze, antifreeze of the same model should be added, not mixed.
　　
　　5. Maintain the brake system< br/> 　　
　　1. Check and replace brake fluid
　　
　　Check whether the liquid level of the brake fluid storage tank meets the requirements, check whether the quality of the brake fluid has deteriorated, and add or replace it in time if necessary. When replacing the brake fluid, the original brake fluid must be drained completely, and then the winter high-quality brake fluid must be injected into the brake system. When changing brake fluid, care must be taken not to mix two different types of brake fluid.
　　
　　2. Check the oil-water separator
　　
　　The oil-water separator and sewage drain switch in the gas path work normally, which can ensure that the water in the brake system pipeline is discharged in time and prevent the brake line from freezing failure in winter. Therefore, check whether the oil-water separator and sewage discharge switch are working normally, and if they are not normal, they should be repaired or replaced in time.
　　
　　3. Check the braking condition< br/> 　　
　　Check whether the brake is weakened or misaligned, whether the pedaling force of the brake shift is normal, and whether the brake does not return to the position, and adjust it in time if necessary. 　　6. Maintenance of electrical equipment
　　
　　1. Battery
　　
　　Check the battery electrode wiring, if you find green oxide at the electrode wiring, rinse it off with boiling water, dry the water with compressed air, and then apply a special protective agent to prevent the oxide layer from appearing again. The battery should be charged frequently in winter. In addition, in order to prevent the battery from freezing due to excessive cooling and affect the starting performance, a sandwich incubator can be made and installed for the battery in winter to increase the battery temperature.
　　
　　2. Starter and generator
　　
　　In winter, the diesel engine is difficult to start, and the starter is used frequently. If the power of the starter is insufficient, it will further increase the difficulty of starting the diesel engine. To this end, a thorough maintenance of the starter should be carried out, keeping all parts of the starter clean and dry, and keeping the contact between the brushes and the commutator good.
　　
　　3. Preheating device< br/> 　　
　　For diesel engines with preheating devices, maintenance personnel should inspect and maintain the preheating equipment before winter to ensure that the technical condition is good. During maintenance, focus on checking the circuit and oil circuit of the preheating device to prevent the starting performance of the diesel engine from being affected due to poor work of the circuit and oil circuit.
　　
　　7. Chassis and other maintenance items< BR / > 　　
　　Check the tightening of chassis bolts and nuts, and check whether the steering system bolts are loose or missing. If loose, it should be tightened, and if it is missing, it should be completed and tightened. Check the lubrication points of the chassis and add grease to each lubrication point. If there is a leak in the pipeline on the chassis, it should be solved in time. If the chassis is severely stripped, it should be sprayed for anti-corrosion treatment.
　　
　　For different construction machinery and equipment, in fact, in terms of maintenance are similar, in place maintenance can extend the service life of the equipment to a certain extent, from another point of view, isn't this a way to save money?