Tower crane is not small. If you lift something, shout first and explain the direction of swing. Remind him to slow down when prosperity approaches. When the boom is in a stable position, whether the car moves forward or backward depends on the specific situation. Under normal circumstances, what the tower crane driver can see and what he can do does not need the command of others.
The command password means:
(1) Short-term verbal command when fighting, training or doing gymnastics: shout ~.
(2) The oral secret code used to identify the enemy or ourselves in poor visibility is usually expressed in words or numbers: Q ~ ㄧㄧ Yes ~.
Operation guide
1. Before use, check whether all metal structural parts and appearance are in good condition, whether the sound is normal during no-load operation, whether the braking is reliable during heavy-load test, whether the safety limit and protection devices are complete and intact, and whether the actions are sensitive and reliable before use.
2. When operating each controller, it should be operated step by step, and it is forbidden to operate beyond the block. When changing the running direction, the operating handle should be reset to zero, and the motor should stop running and then run in the opposite direction, so as to be stable. It is forbidden to start and stop suddenly.
3. During the operation of the equipment, if any abnormality is found in the machinery, it should be stopped immediately for inspection, and it can only be operated after troubleshooting.
4. Strictly hold relevant certificates. Do not work after drinking. It is forbidden to use travel switch instead of parking operation. It is strictly forbidden to operate illegally and leave the post without authorization or give the machine to others to drive.
5. When loading heavy objects, you should leave the ground for a certain distance before moving on.
6. Adhere to the "Ten Articles" principle. After the operation, cut off the power supply, lock the box and do a good job of mechanical "crossing". The contents of the ten don't hang are as follows:
(1), oblique hanging without hanging.
(2), overload not hanging
(3), the bulk is too full or not tied tightly.
(4), hanging edge without protective measures not hanging.
(5), hanging things, people don't hang.
(6) The command signal is unknown.
(7), buried components don't hang.
(8), safety device failure not hanging
(9), dark light can't see clearly the object is not lifted.
(10), strong winds above level 6 are not hoisted.
Source: Baidu Encyclopedia-Tower Crane