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Axle/Jack Stand Safety.
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Peter_L



Joined: 10 Apr 2008
Posts: 2613
Location: New Brunswick. Canada.

PostPosted: Mon Aug 06, 2018 12:00 pm    Post subject: Axle/Jack Stand Safety. Reply with quote

The original article was sent to me, so I googled "jackstand-failure-mike" and found this article. Don't be put off by the start, the maths bit, stay with it.

https://youtu.be/G7_Aa8pbM7Y

As it happens I have 4 of the 3 ton type that have a pin through the ratchet, but 2 smaller ones that don't. I use the 2 ton smaller ones to hold up the lawn tractor to clean under the deck and view the blades. I also use them to tilt it to one side when changing the oil.

I don't know what a lawn tractor weighs but it is much less than 25% of a Porsche. Even so, I would not want to have any part of me compressed between the tractor and the ground.

Anyway, "food for thought". Stay safe everyone..
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BigJohn



Joined: 01 Jan 2011
Posts: 928
Location: Nr. Lancaster

PostPosted: Mon Aug 06, 2018 6:17 pm    Post subject: Reply with quote

When I jack up a vehicle and use axle stands I use the type that are a tube within a tube with a hole through and a thick pin, I don't like the ratchet type. BUT, I always have some sections of cut railway sleeper stacked under a chassis rail or similar strong section elsewhere as an extra safety feature. I don't want my overall's pressed with me in them!
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jp928



Joined: 07 Jun 2016
Posts: 247
Location: Australia

PostPosted: Wed Aug 08, 2018 2:29 am    Post subject: Reply with quote

I use both types of stands, never had any worries. My Porsche (928) is very stiff, and once while it was on 4 stands I noticed that on one corner it wasnt actually loading the stand, and would rock a couple of mm . I usually put the first end I jack on the style shown in the video (more stable base), and the second end on the vertical square tube/tube type. Had a fright once - jacked up an SD1 with the supplied screw pillar jack (side mounted) and as I prepared to go underneath the wife came out and said I should get some stands for such work, and as we stood there looking at it the brass nut in the jack stripped, and the car slid down to the ground..... trip to the auto parts shop!
jp 26 Rover 9, 83 928
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Bitumen Boy



Joined: 26 Jan 2012
Posts: 1499
Location: Above the snow line in old Monmouthshire

PostPosted: Thu Aug 09, 2018 8:41 pm    Post subject: Reply with quote

I've been using a set of Clarke ratchet stands for a good many years now with no problems whatever. Any of the kit we use is only as safe as the operator...
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Clactonguy



Joined: 20 Mar 2018
Posts: 79
Location: clacton on sea

PostPosted: Tue Apr 02, 2019 4:05 pm    Post subject: jack of all trades ? Reply with quote

I use both types of jack from ratchet type through to tube pithing a tube with 'pins' .in ALL cases I shove something undercar near where working on assumption something may just ..fail. and a ton of car falling rapidly can cause serious. damage! so far so good.
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