(10) The operator should ring the alarm for the following operations according to the operation provisions:
①When lifting and landing the heavy object, when starting the trolley and crane driving;
②We should ring the alarm continuously when the crane runs in the area where sight is not clear;
③When crane running close to another crane which is in the same travelling span;
④ When lifting heavy objects close to the staff.

(11) It is prohibited to operate crane with lifting object to stay in the air for a long time. The operator and worker on the ground shall not leave their posts when crane lifting some heavy objects.

(12) It is forbidden to get on or get off the cabin, walking on the rails or walking platform or engaging in crane maintenance during the crane traveling.

(13) For a double hook crane, the hook must work individually when the main hook and auxiliary hook is on exchanged using or two hooks in the same height, to avoid a collision of two hooks.
(14) It is forbidden to use both hooks of a double hook crane to lift different objects at the same time, the unused hook should be hoisted to the limit position of lifting height, without the steel wire rope hanging on the hook.
(15) Keep at least 1. 5 m distance when several cranes working in the same span area, to escape the collision. If crane working needs to be approached the other crane, we should get the agreement from the operator of the adjacent crane, but should keep the distance more than 0. 3 m.
(16) It is forbidden to use two cranes to lift the same heavy object. If we have to use two cranes in some special cases, some safety measures should be taken, and shall not exceed the load capacity ofeach crane. The cranes should be commanded by the chief motor division or chief engineer at the scene before lifting.
(17) We must handle the controller to "zero" when changing direction in normal work, to start the crane in different direction after the mechanism is stopped safely.
(18) The electrical protection device must be kept in good condition, not allowed to adjust and change optionally.
(19) The controller should be handled to the "zero" when the brake, bearing and electrical parts are overheating, with abnormal noise or other abnormal phenomena during the crane working, we shouldcut off the power immediately for maintenance.
(20)For the crane working in the open air, it should be stopped working in more than 6 level wind or it is raining. We should drive crane to the specified location to park when it needn’t to work, and fastenit to the ground in a reliable way.
(21) If it is a crane with disk or grab crane, we also should observe the following provisions:
① We must ensure the cable and steel wire rope move in the same speed when operating a crane with a disk or grab crane, we can’t rotate the disks and grab, so as to avoid accidents leaded by cable and wire rope winding;
② Prohibit to lift the objects with the electricity disk which temperature is above 200 ℃;
③ It is not allowed to use a grab bucket to grab the whole block object, avoid slipping during lifting;
④ Once found the residual magnet on the magnetic electric disk (there is some objects not divorced from disk after the power is cut off),we should stop the crane for maintenance.
(22）Drive the crane to the designated place after the lifting operation is completed, drive the trolley to the cabin side, lifting the hook to the top end, make all controls to "zero", cut off the power supply, and cleaning the equipment by a brush to keep it clean. And make a good crane operating record and on duty exchange.