What Should Be Done First After Buying A Second-hand Rotary Drilling Rig? Complete The Initial Maintenance in Three Steps

After obtaining a second-hand rotary drilling rig, initial maintenance is a crucial step to avoid hidden faults and extend the equipment's lifespan. Many second-hand devices have problems such as aging components and accumulation of impurities due to storage or idleness. Through scientific initial maintenance, potential hazards can be identified in advance to ensure the stability of subsequent construction.

A. Basic cleaning and appearance inspection

1. Overall cleaning of the fuselage: Use a high-pressure water gun to rinse off the dirt and oil stains on the surface of the fuselage, with a focus on cleaning the cab, engine compartment and the area around the hydraulic oil tank to prevent impurities from seeping into key systems. At the same time, inspect the appearance and structure to confirm whether the tracks and drill pipes are deformed or cracked.

2. Component connection inspection: Check the connection bolts of each component one by one, such as the connection points of drill pipes and the interfaces of hydraulic pipelines. If any looseness is found, tighten them promptly to prevent the risk of component detachment during construction.

B. Core system status investigation

1. Oil and filter element inspection: Drain a small amount of engine oil and hydraulic oil to observe the oil quality. If the oil color is black or contains impurities, the oil and the corresponding filter element must be completely replaced. At the same time, replenish the coolant and brake fluid to the standard level.

2. Hydraulic system inspection: After starting the equipment, operate the hydraulic handle to test the lifting and rotating movements of the drill pipe, and observe whether there is any leakage in the hydraulic pipeline. If there is any slow movement or abnormal noise, it is necessary to check whether there are any faults in the hydraulic pump and cylinder.

C. Operation debugging and hidden danger elimination

No-load operation test: Let the equipment run no-load for 30 to 60 minutes, and monitor parameters such as engine speed, water temperature, and oil pressure to ensure that the values are within the normal range. At the same time, check whether the electrical system, such as the dashboard, lights and operation buttons, are working properly.

2. Load test run verification: Select an open area to conduct a small-scale drilling test run, test the drilling and lifting force of the drill pipe, and observe the overall operational stability of the equipment. If low drilling efficiency or abnormal vibration is found, further maintenance of core components is required.

In conclusion, the initial maintenance of second-hand rotary drilling RIGS should cover three dimensions: cleaning, inspection, and debugging, and comprehensively identify potential hazards through six specific steps. Proper initial maintenance not only reduces the occurrence rate of later failures but also enables the equipment to adapt to construction requirements more quickly, thereby enhancing operational efficiency.