A reliable support is a guarantee of safety
Car jacks are designed only to lift a car. But jacks are not reliable enough supports when working on the underside of a car. Never, even in a hurry, neglect to install additional supports correctly. Otherwise, independent repair work can lead to a fatal outcome.
To properly support the machine, wooden wedges and stones can be placed against the wheels so that the machine cannot move when lifted.
What kind of supports can there be?
It is best to use wooden blocks and spacers of various thicknesses as additional supports installed under the body. It is best to place standard triangular stops under the wheels, which securely fix the car from rolling. You can put bricks, stones and other available materials under the wheels.
When lowering the machine from the jack onto the supports, make sure that the supports are installed under the box-shaped elements, stiffeners, otherwise deformation is possible. The upper part of the supports should not have too small a surface.
The overpass is the fastest option for lifting. The car always stands securely. It is important that the overpass has a protective bar in front to prevent it from being run over. And on the sides - guides for the wheels.
The supporting surface must have depressions (molds) for the wheels. They serve as additional protection against machine movement.

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