> DTH drilling truck belongs to semi-hydraulic vehicles, that is, except for the impact of compressed air, the rest of the functions are realized by the hydraulic system, so the quality of hydraulic oil is crucial to whether the hydraulic system can work normally. Now follow the editor of Hunan Ruisheng Electromechanical Equipment to take a look at the maintenance rules of DTH drilling rigs, more about the content of DTH drilling rigs, come to our official website www.hnzega.com.
　　
　　1. Open the hydraulic oil tank, see whether the color of the hydraulic oil is clear and transparent, if it has been emulsified or deteriorated, it must be replaced immediately. If the frequency of use of the drilling rig is high, the hydraulic oil should generally be replaced once every six months. It is forbidden to mix the two hydraulic oils!
　　
　　2. The hydraulic oil used in the drilling truck is anti-wear hydraulic oil, which contains antioxidants, rust inhibitors and anti-foam agents, etc., which can effectively prevent the early wear of hydraulic components such as oil pumps and hydraulic motors. Commonly used anti-wear hydraulic oil is: YB-N32, YB-N46, YB-N68, etc., the larger the endnote number, the higher the kinematic viscosity of the hydraulic oil. According to the different ambient temperature, in the summer generally use higher viscosity YB-N46 or YB-N68 hydraulic oil, in winter the use of lower viscosity YB-N32, YB-N46 hydraulic oil, in view of the fact that there are still some anti-wear hydraulic oil marked with the old brand, such as YB-N68 marked as 40# thickened hydraulic oil, YB-N46, YB-N32 marked as 30# and 20# respectively, so users must recognize the model when purchasing. Clean the oil tank and oil filter regularly, the impurities in the hydraulic oil will not only cause the failure of the hydraulic valve, but also aggravate the wear of hydraulic components such as oil pump and hydraulic motor, so we set up an oil suction filter and an oil return oil filter on the structure to ensure the cleanliness of the circulating oil in the system as much as possible. However, due to the wear of hydraulic components in the work, impurities will be inadvertently brought in when adding hydraulic oil, so regular cleaning of the oil tank and oil filter is the key to ensure the cleanliness of the oil, prevent the failure of the hydraulic system and extend the life of the hydraulic components.
　　
　　1. The improved oil suction filter is installed under the oil tank, and the oil pump oil suction port is connected, because it has a self-locking function, that is, the oil filter can automatically close the oil port without leakage after removing the filter element, and only need to directly unscrew the filter element to rinse with clean diesel fuel when cleaning. The oil suction filter should be cleaned once a month, and if the filter element is found to be damaged, it should be replaced immediately!
　　
　　2. The oil return filter is installed above the oil tank, which communicates with the oil return pipe, and only needs to directly unscrew out the filter element and rinse with clean diesel fuel when cleaning. The oil return filter should be cleaned once a month, and if the filter element is found to be damaged, it should be replaced immediately!
　　
　　3. The oil tank is the intersection of oil absorption and oil return, and it is also the place where impurities are most easily deposited and concentrated, so it should be cleaned frequently. Every month, the oil drain plug should be opened to drain part of the oil to flush out the bottom impurities, thoroughly clean up every six months, release all the oil (it is best not to use it again or filter it for many times), and add new hydraulic oil after the oil tank is cleaned up.
　　
　　Clean the lubricator and add lubricating oil in time, the DTH drilling truck is through the impactor to achieve impact drilling, good lubrication is a necessary condition to ensure the normal operation of the impactor. Because the compressed air often carries moisture and the pipeline is not clean, after a period of use, the bottom of the lubricator often retains certain moisture and impurities, which will affect the lubrication and life of the impactor, so when it is found that the lubricator does not produce oil or there is moisture and impurities in the lubricator should be eliminated in time. When adding lubricating oil, the main intake valve must first be closed, and then the impact valve must be opened to remove the residual gas in the pipe to avoid injury. It is strictly forbidden to work without lubricating oil!