1. Clean the machine's exterior and hard-to-reach areas. Disassemble and clean all covers, ensuring they are clean inside and out, free of rust and yellowing, with the paint showing its original color and the metal showing its shine. Clean the guide rails and remove burrs from the worktable. Check and replace any missing screws, knobs, and levers. Check the flexibility and reliability of all handles.
2. Spindle feed box maintenance: Check the oil quality and ensure it is in good condition and at the required level. Remove burrs from the spindle taper hole. Clean the hydraulic transmission system and oil filter, and adjust the oil pressure.
3. Drilling and milling machine rocker arm and lifting/clamping mechanism inspection: Check and adjust the lifting and clamping mechanisms to ensure they are sensitive and reliable.
4. Drilling and milling machine lubrication system inspection: Clean the oil felt, ensuring all oil cups are intact, oil passages are unobstructed, and oil windows are clear.
5. Drilling and milling machine cooling system inspection: Clean the cooling pump, filter, and coolant tank. Check the coolant lines, ensuring there are no leaks.
6. Drilling and milling machine electrical system inspection: Clean dust from the motor and electrical box, both inside and out. Turn off the power, open the electrical door cover, and check for loose or aging electrical connectors and components. Check if the limit switches are working properly. Check if the power-off function works when the door is open. Check if the hydraulic system is normal and if there are any oil leaks. Check if all electrical control switches are functioning properly.
