What to pay attention to when replacing the coal mining shearer cutter teeth?

Ripper wear during coal mining operations is considerable, necessitating frequent inspections and replacements. If significant damage to the ripper's teeth is detected, they should be replaced following proper procedures. When conducting maintenance on coal-cutting machines and replacing ripper teeth, the following precautions should be taken:

Employees should pay attention to the condition of the roof and coal wall during maintenance. If necessary, reinforcement should be strengthened to prevent cave-in accidents during the maintenance work.

Always disconnect power and open the drum clutch when replacing the cutting teeth on the coal mining drum.

Employees replacing pick teeth must observe the coal wall closely while working near it. If any anomalies are detected, they should immediately halt operations to prevent accidents such as coal wall collapses that could injure personnel.

If the cutting tooth cannot be manually rotated, ensure the personnel evacuate from the drum and return to a safe location before turning on the power to start the machine.

Employees replacing cutting teeth must possess basic safety knowledge and a strong sense of responsibility; do not skip steps out of convenience, as it may lead to unnecessary losses.