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1. Overhead and Gantry Cranes safe
operating procedures

2. Overhead and Gantry Cranes safe
operating procedures
• One , should be carefully checked before driving machinery and equipment, electrical parts and protective safety device is intact and reliable. If the primary attachment controller ,
brakes, stopper , bells , emergency switches and other failures , is prohibited hoists .
• Second, members must obey the command signal , but the emergency stop signal given to anyone , should immediately stop.
• Third, the driver must be able to conduct operations after confirmation command signal , preceded by car -ringing .
• Fourth, when approaching hoist limit switch, the size of the car near the terminal or meet with the neighboring lane , the speed to slow. Allowed to use instead of reversing brake limiter
instead of parking switch, emergency switch instead of an ordinary switch.
• Fifth, should walk up and down the aisle on security , dedicated site or escalator provisions . Carts on both sides of the track are not allowed to walk outside in addition to maintenance .
Forbidden to walk on the trolley tracks. Not allowed to cross from one gantry crane to another crane.
• Sixth, stop work shall not be lifting objects hanging in the air to stay. Operation, the ground put someone or hanging off the warning bells should sound . Prohibited substance in a
person's head hanging cross . Lifting objects from the ground may not be too high.
• Seven , two crane while lifting an object, to obey the command , in unison .
• Eight runs, to maintain a certain distance between the crane and the crane .
• Nine , maintenance 150 ton crawler crane against a safe place to be , cut off the power , hang " prohibition and gates ," the warning signs . Ground to set up fences and hanging " closed
to traffic " sign.
• Ten, when lifting heavy objects tonnages should first try hanging slightly off the ground , hanging confirm stable braking is good, then rise slowly to run. Allowed simultaneous operation
of three control handle .
• XI, crane operation, prohibited people from top to bottom . Also allowed for maintenance and adjustments at runtime.
• XII running a sudden power failure occurs , the switch handle must be placed "0 " bit. Lifting parts or not put locks are not decoupled , not allowed to leave the cab.
• XIII runtime failure caused due to sudden decline when hanging pieces must take urgent measures to no place to land.
• XIV, open-air crane in case the storm , lightning or high winds more than six should stop working, turn off the power , the front and rear wheels should be firmly card game pad .
• Fifteen , night work should have adequate lighting.
• Sixteen , gantry cranes in addition to the implementation of these provisions should also pay attention to whether the obstacle when driving on the track ; sides should set up special
surveillance and command and tall when lifting objects obstruct the line of sight .
• Seventeen , the driver must be carefully done "Ten is not hanging ."
• 1 , does not exceed the rated load hanging ;
• 2, the command signal is unknown, weight unknown , dim light does not hang ;
• 3 , slings and accessories tied strong, does not comply with the safety rules are not suspended ;
• 4 , crane hanging heavy lifting is not processed directly ,
• 5 , pull Xiegua not hanging crooked ;
• 6 , stand on the workpiece or workpiece floating crane stood there live animals are not ;
• 7 , oxygen bottles, acetylene generators and other explosive items are not hanging ;
• 8, with notched edges are not really hanging mats ;
• 9 , the buried object is not suspended ;
• 10 , liquid or fluid costumes are not hanging too full .
• Eighteen , work completed, crane should be stopped at a predetermined position , raised hook, trolley tracks open to both ends , and the control handle to place a "0 " bit , cut off the
power .

3. 15 items assembled crane operations
should be noted
• 1 , when lifting heavy objects , hook wire rope should remain vertical , oblique allowed to drag the object to be hung .
• 2 , the heavy lifting should identify the center of gravity , and tied securely . There are acute application skids pad.
• 3 , the heavy lifting off the ground is not in front of the crane is not doing rotary motion .
• 4 , when lifting or lowering heavy , steady speed should be uniform to avoid drastic changes in speed , causing heavy in the air, swinging , dangerous.
When falling weight , speed, not too fast, so as not to break heavy landing .
• 5 , crane hoists in the case , 25 ton crane for sale try to avoid the ups and downs arm . In the case must hoist arm when landing , from 50% by weight
shall not exceed the specified weight.
• 6 , when the crane lifting heavy rotation in the case , should pay close attention to whether there are obstacles around , if it should try to avoid or
remove obstructions .
• 7 , under the crane boom may not have staff to stay , and try to avoid people through .
• 8 , two cranes operating on the same track , the distance between the two planes should be more than 3m.
• 9 , two cranes lifting an object when combined , can not exceed two from the weight of the total from 75% by weight of the two cranes walk the line
, dipping the action to be consistent .
• 10 , lifting, luffing rope need to check once a week , and make records , according to the specific requirements of the implementation of the relevant
provisions of the lifting rope .
• 11 , walk the line or turning when empty hook to more than 2m from the ground .
• 12 , when the wind more than six , should immediately stop work . TMK arm should go off downwind and appropriately low , the hook hanging in
prison. Gantry shall lay iron wedge ( only rail ) , and rose to ceiling hook . Meanwhile shut doors and windows , turn off the power , pull good wind
cable ropes. Usually after work should also do the same .
• 13 prohibited the stacking ladle crane platform miscellaneous objects even prevent fall injuries in the operation , frequently used tools should be
placed in the operating room dedicated toolbox.
• 14 , running, allowed a sudden shift or turn the clock back , to avoid heavy swing in the air , are not allowed to operate simultaneously over two
items ( including auxiliary hook ) operating mechanism .
• 15 , while driving , hand operator shall not leave the controller , when a sudden failure of the operation , measures should be taken to a safe landing
weight , then cut off the power for repairs. Repair and maintenance in operation is prohibited .