Heavy Truck Unload by Jack

Unload their payload by opening gates on the bottom of the bed. Internal bed walls are sloped to direct the entire payload out through the opened gates. Discharge rates can be controlled by the degree of gate opening and the discharge is usually placed in an elongated pile, called a windrow, in front of the paver by driving the truck forward during discharge. Windrows require a special MTV to feed the HMA into the paver.
Jack is one of the most basic of jack-up, lifting equipment, as in a car repair a flat tire or other occasions, we will use it to top of homework, jack is a good helper, we change tyres, repair the jack besides jack-up operation used in the majority, that during the loading and unloading operations.
We all know that jack main job is top heavy, in the equipment before and after loading and unloading, loading and unloading car, loading and unloading methods vary according to the conditions of the site, jack often used in this process.

Rolling and sliding methods are usually used in equipment loading and unloading. Here we are talking about rolling method (mainly used for large equipment). Roll shift method is used when unloading, to set-up and vehicles with wooden high slope aisle, and set up good traction equipment and block and tackle, jacked the jacking equipment, put rollarounds, row and the aisle; The front of the device is pulled by a traction pulley block and the back by a slide pulley block. When the equipment enters the slope, the traction pulley group will no longer be under force, while the slide pulley group will gradually be under force. At this time, the equipment will move down by self-weight. In order to ensure the translational movement of the equipment, the slide pulley group should be released slowly and uniformly, and special persons should be placed on both sides of the rollers, and some sand should be sprinkled on the ramp walkway to prevent the rollers from rolling down.