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Daily Maintenance of Mining Excavators (the excavator you mentioned)
2026-04-14
Inspect the excavator’s boom, stick, bucket, and dipper arm for cracks, weld failures, or deformation; ensure the bucket teeth and tooth holders are intact, with no looseness or missing parts. Verify that the track tension is appropriate, and that the track shoes, track links, idler wheels, and road wheels are undamaged, free from severe wear, derailment, or binding. Check that the levels of engine oil, coolant, diesel fuel, hydraulic fluid, and swing gear oil are normal and that the fluids are in good condition. Confirm that all hydraulic lines, cylinders, and fittings are leak‑free, and that high‑pressure hoses show no bulging or signs of aging. Inspect the swing bearing bolts to ensure they are properly tightened and adequately lubricated, and verify that there are no unusual noises or excessive play during rotation. Ensure that both travel and parking brakes function reliably, and that control levers and pedals respond smoothly and sensitively. Finally, confirm that the electrical system, explosion‑proof devices, lighting, alarms, and monitoring equipment are all in good working order. During operation, monitor the engine for smooth running, with no abnormal noises, smoke, or vibrations. Verify that the hydraulic system operates smoothly, with no sticking, jerking, or loss of power during lifting, digging, slewing, or traveling. Continuously track water temperature, oil temperature, oil pressure, and system pressure to ensure they remain within normal ranges, and avoid prolonged overloading. Ensure that the slew unit and travel mechanism operate quietly and without overheating. Regularly inspect the tracks for proper operation, eliminating any risk of stones becoming lodged or derailment. If leaks, overheating, sluggish movement, or unusual noises occur, immediately shut down the machine and conduct a thorough inspection. Thoroughly clean coal gangue, soil, and dust adhering to the machine body, tracks, undercarriage, and work equipment. Apply grease to all hinge points on the boom and stick, bucket pins, swing bearings, and wheel assemblies. Check track tension and adjust or clear any debris caught in the tracks as needed. Tighten critical bolts on the machine body, slew unit, and work equipment. Inspect hydraulic hoses and seals for wear or aging, promptly reporting and replacing any components presenting potential hazards. When parking, lower the bucket to rest on the ground, relieve pressure from the hydraulic cylinders, align the machine body, flatten the tracks, switch off the power, and park in a level, secure area.
Inspect the excavator’s boom, stick, bucket, and dipper arm for cracks, weld failures, or deformation; ensure the bucket teeth and tooth holders are intact, with no looseness or missing parts. Verify that the track tension is appropriate, and that the track shoes, track links, idler wheels, and road wheels are in good condition, free from severe wear, derailment, or binding. Check that the levels of engine oil, coolant, diesel fuel, hydraulic fluid, and swing gear oil are normal and that the fluids are of good quality. Confirm that all hydraulic lines, cylinders, and fittings are leak‑free, and that high‑pressure hoses show no bulging or signs of aging. Inspect the swing bearing bolts to ensure they are properly tightened and adequately lubricated, and verify that the swing mechanism operates without unusual noises or excessive play. Ensure that the travel brake and parking brake are reliable, and that the control levers and pedals respond smoothly and promptly. Finally, confirm that the electrical system, explosion‑proof devices, lighting, alarms, and monitoring equipment are in good working order and fully functional.
During operation, ensure the engine runs smoothly, with no unusual noises, smoke, or vibrations. Verify that the hydraulic system operates steadily, with no sticking, jerking, or loss of power during lifting, digging, slewing, or traveling. Continuously monitor water temperature, oil temperature, oil pressure, and system pressure to confirm they remain within normal ranges, and avoid prolonged operation under overload conditions. The slewing and traveling mechanisms should operate without abnormal noises or excessive heating. Regularly inspect the track condition to prevent stone entrapment or derailment. If any malfunctions occur—such as oil leaks, overheating, sluggish response, or unusual noises—immediately shut down the machine and perform a thorough inspection.
Thoroughly clean coal gangue, soil, and dust adhering to the machine body, tracks, undercarriage, and work equipment. Grease all hinge points of the boom and stick, bucket pins, slew bearings, and travel wheel assemblies. Check track tension, adjust it as needed, and remove any stones trapped in the tracks. Tighten critical bolts on the machine body, slew mechanism, and work equipment. Inspect hydraulic hoses and seals for wear and aging, and promptly report and replace any potential hazards. When parking, lower the bucket to the ground, relieve pressure from the cylinders, align the machine body, flatten the tracks, turn off the power, and park in a level, secure area.
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