INSTRUCTIONS FOR ERECTION OF STRUCTURAL STEEL. 481 



Sec tli.it all button sets (rivet sets) arc fastened to the air hammers. 



See that Your Equipment and Tools are Properly Used. In using a locomotive crane be 

 sun- that your track is pn.prily ballasted ami level and the- rails well spiked down. Do not lift a 

 tdnoays when the locomotive crane is standing on a curve, without using extra care. Use your 

 <-rs and mil clamps when lifting a heavy load. 



1 'he l.i'ls that a locomotive crane is capable of handling safely for each radius are plainly 

 marked on the . T.IIK-; don't attempt to lift heavier loads with the crane. 



that the booms of locomotive cranes, derrick cars or derricks, are in first class condition. 

 If the boom (or liaises of the boom) has been injured or bent, don't use it, but replace the broken 

 or bent part with new material. Don't attempt to straighten it, as the material in all probability 

 has been injured, and will break or collapse sooner or later. 



A locomotive crane is a useful, but dangerous piece of equipment, for this reason the greatest 

 possible (are should be exercised in handling the same. Don't allow any man on the car or crane 

 cab, except the craneman, and keep workmen from under the boom. Don't attempt to shift track with 

 your crane standing on the same track, and don't attempt to lift a maximum load with the boom 

 iiori/ontal. 



You must be especially careful in swinging boom sidewise or lifting loads sidewise with a 

 derrick car as your car will upset unless you use outriggers or guys. Don't run chances, but lift 

 the load straight ahead wherever possible. Sec that the boom on the derrick car is tightly guyed 

 at all times with wire rope running from end of boom to sides of car. Never use manila line for 

 this purpose, as it will stretch and your boom will get away from you, upsetting the car. Use 

 additional guys to end of boom when setting heavy loads. 



In carrying loads with a locomotive crane or derrick car on a curve, be sure that the track is 

 level and the outer rail not elevated as is customary with railroad track. 



Be very careful in using a wooden boom extension or outriggers, that you do not lift too 

 heavy loads. The increased length of the boom and the weight of extension reduce the lifting 

 capacity considerably. Whenever possible, avoid the attachment of guy lines to railroad tracks, 

 as numerous accidents have occurred by car running into the guys. 



Hook onto sheets or bundles of small material so that they cannot slip out. 



Don't allow men to carry glazed window sash on their shoulders when the wind is blowing. 



See that gate blocks are securely fastened and that men do not stand in the "bite" of a line. 



Do not use a light gate block when lifting heavy loads. 



Lines should be run around two winch heads when making a heavy lift. 



When you use a derrick keep the boom elevated above a horizontal line as far as possible, as gen- 

 erally the worst stress comes on the boom and mast as well as stiff-legs or guy lines when boom is in a 

 horizontal position. A maximum load for the derrick should never be lifted with the boom in a hori- 

 zontal position. 



When you use a gin pole see that the splices are well bolted and the pole is properly guyed. 

 Do not lean the pole too much when lifting a load or moving the pole and see that the foot of the 

 pole cannot move or slip except when you desire to move it. 



A number of accidents have occurred through the improper loading of push cars. See that 

 the load is properly placed so that it cannot roll or tumble over, especially going around a curve". 

 Do not allow your men to push on the side of the car with a top heavy load. They should push 

 or pull from the ends of the piece. 



When you lift a beam or girder use scissor dogs or cast steel girder hooks wherever possible, 

 and if you are obliged to use either ordinary dogs or chains sec that wooden blocks are used be- 

 tween the chain or dog and the flange to prevent the girder from slipping. 



Avoid the use of chains except for lifting light loads. Where you have heavy loads to lift 

 use cable slings, being careful to avoid sharp bends by using rounded wooden blocks between 

 cable and load. Don't put too many parts of lashing into a hook as by doing so you are liable to 

 open up the hook. See that exposed parts of dangerous machinery are properly covered. 



4. Be Orderly, Careful. Sec that your work is carried on in an orderly, careful manner. 

 See that material is unloaded and piled in an orderly, careful way so that it cannot fall, turn 



or be blown over. 



Unless necessary, do no hoist any material to a structure until you are ready to put it into 

 position and properly fasten it. In cases where you do hoist material to the structure before 

 putting it in its final position, see that it is piled in an orderly way so that it cannot turn or roll 

 over when a man steps on it. 



Don't let tools or equipment such as bolts, nuts, drift pins, blocks, dolly bars, etc., lie around 

 so that they can be knocked off the work or so that any one can fall over them. Keep every- 

 thing orderly and in ship-shape and allow nothing to lie around. 



5. Be Vigilant. You must use vigilance and be on the job practically all the time to see 

 that your men are carrying out your instructions; that tools and equipment are in fit condition 

 for the work and that they are handling the work carefully and intelligently. 



Be careful and insist on the men under you being careful, and do not allow any one who is 

 reckless and careless to work for you. 

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