L48A1 Mast Section Installation steps of the balance arm of the tower crane
The role of the balance arm of the tower crane is mainly to provide reverse torque for the lifting arm, so as to ensure the balance of the body in the lifting process. It is one of the important tower crane accessories. It is very important to master the installation steps of the balance arm of the tower crane to prevent the occurrence of the tower crane accident.
In the process of installing the balance arm of the tower crane, the two balance arms should first be assembled on the ground, and the lifting mechanism, electric control box, balance arm lever, etc. should be installed on the balance arm and should be well connected. The rotary mechanism is connected to a temporary power supply, and the above part of the rotary support is rotated to the position where the balance arm is easily installed.
Then, the tower crane builder shall hang up the balance arm(with 4 mounting ears on the balance arm) and fix the balance arm and the rotating tower body with a pin shaft. The balance arm is gradually raised to the appropriate position, so that the balance arm's pull rod and the balance pipe's pull rod on the top of the tower are connected with the pin wheel, and the pin shaft is closed and the opening pin is opened. Finally, slowly put the balance arm down, and then lift the balance to reinstall the position closest to the top of the tower behind the balance
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