Tower cranes, also called tower cranes, are common lifting equipment used by construction companies. Tower cranes are used to lift construction materials such as steel bars, concrete, steel pipes and so on. Tower cranes are indispensable equipment on construction sites. The following describes the maintenance of the electrical system of the tower crane.

1. Frequently check all wires and cables of the tower crane for damage. Bandage and replace damaged parts in time.

2. If the tower crane motor is overheated, stop it in time, and continue to run after troubleshooting. The motor bearing should be well lubricated.

3. The contact surface of each part of the brush should be kept clean, and the pressure of the brush should be adjusted so that the contact area is not less than 50%.

4. All control boxes, distribution boxes, etc. are always kept clean, and dust on electrical equipment is cleaned up in time.

5. The contact opening and closing of the travel switch of each device of the tower crane should be reliable, and the contact crater should be polished in time.

Measure the protective grounding resistance twice a year (spring and autumn) to ensure that it is not more than 4 ohms.

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