jack placement question

[starwarsfan]

thank you so much! i am glad to see that jayco does answer some questions. we never could get a reply. blessings, cheryl.

[Dex]

My Fleetwood owners manual gives no directions about changing a flat.
It reads "Should you experience a flat, it is recommended that you summon professional help"
I doubt that!
So to be on the safe side, I'm going ask a few questions.
This is the spring plate that the jack would be placed under, right?

And this is not a good location for the jack to change a flat?

[sheff69]

A lot of people say you can't run one wheel up onto a block in order to take off the other wheel in a tandem axle configuration, because you'll overload the first tire, but I have never seen anyone quote this web site.

http://www.goodyear.com/truck/pdf/da...dInflation.pdf

According to Goodyear, you can over load a truck tire to 185% of the rated load, provided you increase the pressure in the tire by 20%, and provided you don't run the tire. And note this sets no time limit to it.

Reading between the lines, knowing how engineers think about safety criteria, and how lawyers react to that, I think it safe to say you can double the load on a tire without pressure increase, for short times, provided you are stationary.

Sheff

[sheff69]

Ooops. Mis-read the table. That should have been 165% for light truck tires.

My conclusion still stands.

Sheff

[Erich]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Dex:
My Fleetwood owners manual gives no directions about changing a flat.
It reads "Should you experience a flat, it is recommended that you summon professional help"
I doubt that!
So to be on the safe side, I'm going ask a few questions.
This is the spring plate that the jack would be placed under, right?

And this is not a good location for the jack to change a flat? </div></BLOCKQUOTE>

The first picture indicates the best place to raise the axle, very little actual height is required to get the wheel off the ground compared to raising it by the frame,(pic 2). And, driving one wheel onto boards to raise the other, is thing but IMHO, lazy.