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MANUAL HANDLING AND STORAGE OF MATERIALS
wheels should be as far under the truck as possible Wheel guards can be installed on many types of trucks
Tongues of flat trucks should he provided with counterweights, springs, or hooks to hold them vertical when not in use If this is not possible, woikcrs should be trained to leave handles in such a position that will not be a tripping hazard
Equipment should be inspected daily and kept m good repair Repair and mainte nance records should be kept to show the condition of each piece of equipment Axles should be kept well-greased
The type of truck most suitable for the work at hand should be used No one truck is right for handling all types of material
When loading trucks, truckers and load ers should keep their feet clear of the wheels. Loads should be placed so that they will not bp, shift, fall off, or block the view of the operator
Fig. 17-9. Four-wheeled trucks not equipped with tongues or drawbors should be pushed, not pulled If the truck is properly looded, the operotor can see where he is going, and he is not in dan ger of being run down by his own truck.
On a two-wheeled truck, the center of gravity of the load should be placed well forward so that it lies on the axle and not on the handles
When a two-wheeled truck or wheelbar row is loaded in a horizontal posibon, the worker should raise it to traveling position by lifting with his leg muscles and keeping his back straight He should observe the same principle in setbng a loaded truck or wheelbarrow down--the leg muscles should do the work
Four-wheeled trucks, except those of the "fifth wheel" or tongue type, should be pushed, not pulled, particularly when the truck is going down an incline (Fig 17-9 ) If the worker pulls a truck, he may catch his feet between the truck bed and the floor This type of accident often results in frac tures and severe heel cuts.
When handtruck is pushed down an in cline, it should be ahead of the worker
When pushing trucks, workers must ex ercise' constant vigilance to avoid running wheels off dockplates or platforms, prevent collisions with other workers, trucks, or obstructions, and avoid jamming their hands against side obstructions (Fig 17-10 )
"Fifth wheel" trucks, provided with a steering handle attached to a swiveling axle, should be pulled by the handle and never pushed, except to maneuver a truck into a certain posibon Handles should be hooked or chained up out of the way when trucks are parked or standing On a large truck of this type, such as a baggage truck, a wheel should be chained to the frame to prevent the truck from moving when it is standing, especially when it is outside where the wind might move it
Workers should operate trucks at a safe speed and keep them constantly under con trol Special care is required at blind cor ners and doorways
Trucks should not be parked in aisleways or other places where they may ob struct traffic or constitute stumbling haz
ards. Workmen should be instructed to
keep trucks not in use in the storage place provided
Conveyors, cranes, and hoists. See Chap ter 18, "Hoisting Apparatus and Convey ors," for desenpbon of many types of lift ing and transporting devices used to re-
17-10