Lifting jack types - Page 2 - Mercedes-Benz Forum

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post #11 of 13 (permalink) Old 08-05-2008, 02:06 PM
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Originally Posted by Diesel Benz View Post
I didn't find the original photo but here is an example how you should jack the car. Note that one wheel is blocked and there is one spare stick keeping the car lifted if the main one happened to fail.
Look like this guy is playing it safe by keeping the wheels on so that there will be enough clearance should BOTH sticks fail and he wouldn't be crushed. But on the other hand, he is welding the gas tank !!
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post #12 of 13 (permalink) Old 04-04-2009, 05:19 PM
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Reason not to use a bottle jack...

Even if a bottle jack would fit under your car you should not use one in the jack point with the rectangular pocket for the vehicle jack. The reason is that there is a 25mm hole directly above the center of the jack point. The jack point "screw plug" goes into this hole to fasten the jack point to the car. A bottle jack positioned directly below the center of the jack point is very likely to push the plug completely through causing damage to the car.

Originally Posted by keyhole View Post
My first thoughts were to get a 2 tonne bottle jack. Then I discovered that my car jacking points are 6.5in (165mm) from the ground, and all the bottle jacks I could find were 7.0 in (181mm) minimum.
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post #13 of 13 (permalink) Old 04-05-2009, 03:25 PM
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Just get a hydraulic trolley jack and replace the steel pad on the lifting arm with one of those rubber-clad pads you can purchase separately. The lifting pad just pulls off.

I don't like bottle jacks at all; the lifting pad on the end of the ram is usually too small to be of any use for anything. They're also very unstable in most conditions.

Remember though, that with any jack you use, the only thing that holds the load is (typically) the rubber O-ring on the needle valve seat in the hydraulic pump block. You're relying entirely on the integrity of that O-ring; don't trust it.

I use jack stands, then slide tires under the car and pump the trolley jack up until it just makes contact with something solid if I'm going under a car. If you're just changing tires, you can stick to only the jack.

Remember not to sit facing the car with your crotch right under the brake disc and your legs strewn underneath...
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