Do I need to use jack stands?

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Do I need to use jack stands?
« on: December 01, 2009, 06:21:56 PM »
I use jack stands when using hydraulic jacks.

But what about scissor jacks?  They seem more stable and less prone to sudden failure.

Whenever I read stories about guys getting crushed under cars, I wonder if the jack actually fails, or if the car fell off of the jack..

What do you guys think about scissor jacks?  Is the mechanism inherently more stable?

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Offline rusty

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Re: Do I need to use jack stands?
« Reply #1 on: December 01, 2009, 06:48:55 PM »
Always use jack stands. I've had more scissor jacks bend and fall then all other jacks combined.
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Offline goodfellow

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Re: Do I need to use jack stands?
« Reply #2 on: December 01, 2009, 07:00:07 PM »
Anytime I lift the car to work under it, I use the jack stands, along with the jack. I've seen way too many guys with broken ankles, hands, and shoulders due to "just using a jack"  -- any jack!!

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Offline rusty

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Re: Do I need to use jack stands?
« Reply #3 on: December 01, 2009, 07:55:00 PM »
 I was a paramedic on emergency squads for years. After seeing jacks and other supports fall I'm very very paranoid.
Tool do job=Good tool

A 'Veteran'is someone who, at one point in his life, wrote a blank check made
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Re: Do I need to use jack stands?
« Reply #4 on: December 02, 2009, 01:24:15 AM »
I always thought it was something about the hydraulic aspect that failed.  Whenever I see hydraulic lifts like mid-rise lifts or big bumper jacks, the safety feature is a mechanical lock.  Isn't this a sort of built-in feature of scissor jacks?
of course, I agree that stands are always the safest bet

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Offline rusty

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Re: Do I need to use jack stands?
« Reply #5 on: December 02, 2009, 03:16:23 AM »
The main problem is the materials the scissor jacks are made from. I have seen cases of them bowing on straight up lifts on flat ground.

They are usually made too thin for good strength.
Tool do job=Good tool

A 'Veteran'is someone who, at one point in his life, wrote a blank check made
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Offline Fins/413

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Re: Do I need to use jack stands?
« Reply #6 on: December 03, 2009, 01:18:07 PM »
Yes,I usually have a secondary set of them if the first fails.
Eric Corse
Wake Forest, NC
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1982 Ford Econoline

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Offline 1977Impala

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Re: Do I need to use jack stands?
« Reply #7 on: July 05, 2010, 10:20:09 PM »
This is a nickname for the older VW golf and jetta jacks..lol
"Ten six niner! Ten six niner!, We've got whores in the city, we
need back up now!

Re: Do I need to use jack stands?
« Reply #8 on: November 08, 2010, 07:55:23 PM »
I don't even trust some of the jack stands out there ... I gotta have the kind with the pin going through it.

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Offline rusty

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Re: Do I need to use jack stands?
« Reply #9 on: November 08, 2010, 08:25:00 PM »
Even then you  have to wonder what the pins are made out of.
Tool do job=Good tool

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Aunt Philis

Re: Do I need to use jack stands?
« Reply #10 on: November 08, 2010, 10:48:24 PM »
Always use jack stands. I've had more scissor jacks bend and fall then all other jacks combined.
I agree 100% a jack stand wont break.