Spiral jacks rely on the support force from the ground or below to lift heavy objects. If the jack is in a suspended or inclined state, it cannot exert the lifting force and may even tilt during the lifting process. In practical use, sometimes we have to use a jack to lift heavy objects on a sloping surface, and at this time, we need to pay attention to some technical issues.
When placing a screw jack on a sloping surface, the first step is to solve the balance and support surface problems of the jack. Although the sloping surface has some support, there is still some space left below. We can use other hard objects to fill this space, use hard wooden boards or steel plates to cushion and level it, and then place the jack. The top of the jack should be cushioned with support materials that expand the force transmission area. At the same time, anti slip materials should be placed between the sloping surface and the steel plate, and between the steel plates.
In short, using a screw jack to lift heavy objects on a sloping surface is highly dangerous. In addition to doing a good job of supporting and leveling the jack, it is also necessary to monitor and prevent during the lifting process.
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