After using the railway tamping machine for 500 hours, the hydraulic tamping machine needs to be fully inspected and repaired to restore the components and performance of the railway tamping machine to the design level. The specific content is:
1) Disassemble the vibration frame, check or replace the bearing;
2) Decompose the hydraulic system, clean it thoroughly, and replace the bad parts and seals;
3) Clean the piston rod and cylinder, and replace them if they are severely strained;
4) Replace all nylon sleeves;
5) Check and clean the motor bearings, add grease, diesel and gasoline engines in accordance with the instructions;
6) Repair welding or replacement of the pick palm to meet the design requirements;
7) The aperture of each part should be checked one by one, and the severely worn ones should be replaced;
8) The oil pump and valve body should be tested with a test bench, and those with poor performance should be replaced or repaired;
9) The overhauled railway tamping machine must go through 3 hours of no-load and 1 hour trial and tamping, test and record various technical indicators, and then use it after confirming that it meets the design requirements.
