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Old 04-18-2017, 10:14 PM   #1
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Safety Jacks

So now our coach is safely away in the garage after spending the winter down south in AZ. As the garage has a concrete floor I would like to take the weight off the tires so that it keeps the flat spots away. I can either lower the HWH levelling system (probably not recommended) or I can buy 4 jacks that keep the weight off the suspension but not lift the tires completely off the concrete. Firstly I need two longer jacks to reach the chassis fairly high up in the front and two lower height jacks to lift the rear. The benefit here is I can go under the coach safely as well to do underneath work so I require jacks with safety locks built in. Trouble is I don't have a clue where I can buy these items. Anyone have some ideas what and where to buy?
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Old 04-18-2017, 10:55 PM   #2
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Google is my friend, just searched "jack stands 10 ton". All the best.

Here are some tall stands
https://www.google.com/shopping/prod...BOQQ8wII3wIwAg


here are some short stands
American Forge & Foundry 10-Ton Pin Type Jack Stand-INT3309A - The Home Depot
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Old 04-19-2017, 02:10 AM   #3
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What i do I run the HM to have air in system all the way up, suspension up and then put 6X6, 2X6 and plywood under leveling jacks so this as tight to jack plate as possible then I dump the air suspension. This way most weight of MH is off tires and HMV jacks are still retracted.
No need of extra portable jacks,no danger of hydraulic leaks and jack pistons stay inside so no worry of corrosion on chrome section
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Old 04-19-2017, 06:39 AM   #4
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Quote:
Originally Posted by 8TiresRollin View Post
So now our coach is safely away in the garage after spending the winter down south in AZ. As the garage has a concrete floor I would like to take the weight off the tires so that it keeps the flat spots away. I can either lower the HWH levelling system (probably not recommended) or I can buy 4 jacks that keep the weight off the suspension but not lift the tires completely off the concrete. Firstly I need two longer jacks to reach the chassis fairly high up in the front and two lower height jacks to lift the rear. The benefit here is I can go under the coach safely as well to do underneath work so I require jacks with safety locks built in. Trouble is I don't have a clue where I can buy these items. Anyone have some ideas what and where to buy?
From HWH Question and answers 1

Quote:
Can I store my coach with my jacks extended?
Yes, this will not hurt the system.

54. How long can I leave my coach parked with the jacks extended?
As long as you want. We recommend operating the system occasionally if possible.

55. Do I need to do any maintenance on the jacks or slide-outs while the vehicle is parked with the jacks and slide-outs extended?
There is no necessary maintenance for the jacks or slide-outs while the vehicle is parked. If desired, WD-40ģ can be used on the jack rods right before storing the jacks if dirt has collected on the rods. Refer to the following link for jack maintenance information ml47149.pdf.

56. If Iím parked for a month or two, should I occasionally operate my system?
Yes, it is good to operate the system occasionally but it is not required.
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Old 04-20-2017, 05:00 AM   #5
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Purchased the following jackstands from Summit Racing. What I like about them is the flat base which gives you more stability and better distributes the load.

Sunex Jack Stands 22 ton STX-1522

https://www.summitracing.com/parts/sxt-1522
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Old 04-20-2017, 05:47 AM   #6
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Purchased the following jackstands from Summit Racing. What I like about them is the flat base which gives you more stability and better distributes the load.

Sunex Jack Stands 22 ton STX-1522

https://www.summitracing.com/parts/sxt-1522
Boy oh boy, 22 tons for each stand should sure hold her up!
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Old 04-20-2017, 08:00 AM   #7
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Thanks for the responses people. I am reluctant to use the levelling jacks as the front ones are angle mounted so the base needs to move out across the concrete a little as the coach rises. Might bend something. I also want to be able to do some planned work underneath. I like High Ball's idea though. Thanks again.
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Old 04-20-2017, 08:51 AM   #8
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Thanks for the responses people. I am reluctant to use the levelling jacks as the front ones are angle mounted so the base needs to move out across the concrete a little as the coach rises. Might bend something. I also want to be able to do some planned work underneath. I like High Ball's idea though. Thanks again.
This sounds like something you would have to be concerned about any time you used the jacks. What would be the difference between using to level versus storing?

I know our coach is lighter but i have never had an issue storing with the full weight of the coach on the tires. Tires today don't seem to be as bad at developing flat spots like the old nylon tires did.
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Old 04-20-2017, 04:07 PM   #9
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Modern day tires on your coach, aren't going to flat spot. I think you're going through a lot of effort for no reason.
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Old 04-20-2017, 06:31 PM   #10
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Modern day tires on your coach, aren't going to flat spot. I think you're going through a lot of effort for no reason.
I thought that too, except everytime I get my Class C out of it's Florida winter storage yard, it thumps down the road for 5 or 10 miles. They are 3 year old Bridgestone Durvas tires, stored on the ground.
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Old 04-20-2017, 06:55 PM   #11
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I think all tires have to warm up a little before they get round again. I don't see it as any kind of issue and would not go to a lot of trouble to prevent thumping for a few miles. Others may think different.

"Flat spotting", as I've always understood it, was a permanent condition that occurred in tires many year ago. Mostly in tires that were made using nylon cords. Modern tire technology and rubber compounds have eliminated it as a problem. Some folks still remember the "old days" and treat modern tires the same as they did in the 50's.
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