Analysis and Countermeasures of Common Malfunctions in Coal Mine Tunnel Repair Machines（haoyun）

The editor of Shandong Haoyun Heavy Industry Machinery Co., Ltd. will provide the following analysis and countermeasures for common faults of roadway repair machines used in coal mines.

In complex underground environments, even the most advanced tunnel repair machines used in Haoyun Heavy Industry coal mines may face challenges. Mastering common faults and their handling methods can effectively improve equipment operation efficiency and ensure safe production. Here are several typical problems and solutions:

1、 Power system malfunction

Difficulty starting engine: Check fuel supply, remove blockages; Ensure that the battery is fully charged and securely connected.

Hydraulic system oil leakage: Immediately shut down the equipment, identify the source of the leakage, replace damaged seals or hoses, and regularly maintain the quality of hydraulic oil.

2、 Control system malfunction

Slow sensor response: Clean the sensor surface, check the circuit interface, and recalibrate if necessary.

Wireless communication interruption: Check for signal interference sources, restart the receiver, and replace if hardware is damaged.

3、 Mechanical wear and tear

Passivation of cutting tools: Regular inspection and timely replacement of severely worn tools to ensure cutting efficiency.

Improper chain tightness: Adjust the tension wheel to maintain appropriate tension and avoid excessive wear.

4、 Problems caused by environmental factors

Overheating caused by high temperature: Increase ventilation, check the cooling system, and temporarily suspend operations to prevent engine damage.

High humidity causes corrosion: Use anti-corrosion coatings and regularly dry internal components to enhance corrosion resistance.

Haoyun Heavy Industry is well aware that every detail is related to the overall situation, and always adheres to high standard maintenance guidelines to ensure the stable operation of tunnel repair machines and contribute to the coal mining industry.