What does the monthly maintenance of a roadheader mainly include? The monthly maintenance of a roadheader usually includes the following aspects:

   1. Mechanical parts inspection:

   Inspect the cutting head and cutter in detail, assess their degree of wear, and replace them if necessary.

   Inspect all moving parts, such as telescopic arms, outriggers, etc., to ensure smooth and unimpeded movement.

   Lubricate transmission parts such as bearings and gears, and check their wear.

   2. Hydraulic system inspection:

   Check the hydraulic oil level to ensure it is within the specified range.

   Check the hydraulic pipeline, look for possible leaks, and repair them.

   Check the performance of key components such as hydraulic pumps and valves to ensure they are working properly.

   3. Electrical system inspection:

   Check electrical components such as cables, connectors, switches, etc. to ensure they are intact and well connected.

   Clean the electrical control box to ensure that there is no dust and debris inside.

   Check all electrical sensors and actuators to ensure they respond accurately.

   4. Cooling system inspection:

   Check the cooling water circulation system to ensure that the cooling water flows smoothly and is not blocked.

   Check the temperature and pressure of the coolant to ensure that it is within the normal working range.

   Clean the heat sink of the cooling system to maintain its efficient heat dissipation.

   5. Safety device inspection:

   Check all safety devices, such as emergency stop buttons, limit switches, etc., to ensure that they function properly.

   Check the protective covers and warning signs to ensure that they are clearly visible and undamaged.

   6. Maintenance records:

   Record the details of all maintenance activities, including replaced parts, problems found and solutions.

   Update the maintenance log to provide reference for subsequent maintenance work.

   7. Training and guidance:

   Train operators in maintenance and ensure that they understand the correct maintenance procedures and operating techniques.

   Provide guidance and suggestions for maintenance to help operators better perform maintenance tasks.

   Please adjust the above maintenance content and cycle appropriately according to actual usage and manufacturer's recommendations. Regular maintenance not only helps to keep the cantilever tunnel boring machine in the best working condition, but also effectively prevents the occurrence of failures and ensures the smooth progress of construction.