When lifting heavy objects, the speed should be uniform and stable to maintain the stability of the body and prevent the center of gravity from tilting. It is strictly forbidden to drop the hanging objects freely.

No maintenance work shall be carried out during work. Working at night requires good lighting.

After the work is completed, the locomotive should be parked on a solid ground, the hook should be retracted, the brakes of each part should be firmly braked, and the lever should be placed in the neutral position.

When the crawler crane is transferring the job site over a long distance (above 1km), it must be transported by a flatbed truck; during the short-distance transfer (within 1km), the boom should be lowered to 20-30° and the hook should be retracted.

When two or more cranes work at the same time, the lifting capacity of the rubber-tyred crane shall not exceed 75% of the total allowable lifting capacity of the two cranes