日本在线看片免费人成视频1000,日本妇人成熟A片免费观看网站,亚洲A级成人片在线观看

  • <code id="6iedd"></code>
  • <code id="6iedd"><small id="6iedd"><track id="6iedd"></track></small></code>
  • <big id="6iedd"><em id="6iedd"></em></big>

    1. 1. The maintenance method of the concrete pump truck should be in accordance with the corresponding requirements and methods in the maintenance manual. During daily use, check the related items of the pump truck before and after use.
       
      2. According to the corresponding requirements and methods in the operation and maintenance manual, refer to the lubrication table, and timely and adequately lubricate the parts of the pump truck.
       
      3. According to the corresponding requirements and methods in the operation and maintenance manual, select the hydraulic oil of the specified type, and replace the hydraulic system oil regularly.
       
      4. In accordance with the maintenance methods and requirements of the concrete pump truck in the user manual, regularly check the water tank, concrete cylinder and concrete conveying pipe of the pumping system.
       
      5. According to the corresponding requirements and methods in the operation and maintenance manual, regularly check and adjust the torque of the fixing bolts of the rotating base of the boom.
       
      6. Regularly check and adjust the boom, rotating base, outrigger, support structure, reducer and other components according to the maintenance method of the concrete pump truck in the manual.
       
      7. In accordance with the corresponding requirements and methods in the operation and maintenance manual, regularly check the working status of the hydraulic system and components, electrical systems and components.
       
      8. The maintenance method of concrete pump truck should be adopted for cold weather.
      日本在线看片免费人成视频1000,日本妇人成熟A片免费观看网站,亚洲A级成人片在线观看