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The Safe Way to Use a Jack


4. If you have jack stands, place them under the car, near the place where the jack is touching the vehicle (see Figure 1-2). Raise the stands until they are high enough to just fit under, and lock them in place. Lower the jack until the car is resting on the jack stands. Then remove the jack.

Substituting boxes, stones, or bricks for jack stands is very dangerous. They can slip out or break while you're under the car. A jack can do the same thing, so if you're going to work under your car (and you will if you plan to change your own oil and do your own lube jobs), be sure to buy a pair of jack stands. The money you save by getting under there yourself will pay for the stands in no time. You can find information about buying jack stands in Chapter 2.


5. Before you begin to work, wiggle the car a little to make sure that it's resting securely on the jack or the jack stands.
Doing so also tells you whether you have the wheels blocked properly. It's better if the vehicle falls while all four wheels are in place. (It will bounce just a little.)
If you remove a wheel and begin to work without making sure that you jacked up the car and blocked it securely, it can do a lot of damage to itself - and to you - if it falls. (This is not meant to frighten you away from jacking up your car and working on or under it. It's just to empha¬size the fact that a few simple precautions will remove any danger.


6. When you're finished working, lower the vehicle to the ground.
If you're using a tripod or scissor jack, simply turn the crank in the opposite direction. If you're using a hydraulic jack, use the rod to turn the pressure release valve. The jack will do the rest of the work for you.

 

 

 

 

 

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