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Old 02-14-2012, 08:00 PM   #29
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Originally Posted by tvanwave View Post
Robert, What is your opinion on putting the AS up on jacks? I was told if the AS was not going to be moved for say 2 months, it should go on jacks to help save the tires.
tvanwave,

As posted above it does help preserve the tires by getting them in out of the cold WNY weather for 5mos, always a plus.

BUT......also, too, such as.

The Classic is a heavyweight...... with under-rated axles.
7300lbs GVWR with two 3500lb axles.
The torsion axles benefit from not having to sit under load, less chance of them taking a "set", which is a common cause of failure, helped by the fact that their carrying some extra weight.


So this gets done every Winter

Bob
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Old 02-22-2012, 08:44 PM   #30
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Originally Posted by Melody Ranch View Post
As I have said here before, I use 700 x 15 bias on all but one of my trailers. I over ten years I have never had a flat or blowout. I use 'em on all my farm and ranch vehicles too. The Airstreams are old and light. The others are new and heavy and used on all types of roads and unimproved land.
Melody, what brand of bias 700 X 15 tires do you use? I am going to give them a try.

Thanks so much for your help.

Kelly
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Old 02-24-2012, 09:53 PM   #31
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Missed your message and I hope you get the info this way. I have been using Monarch 700 x 15 tires. See the web site here and note the Maxxis relationship.
Monarch Tires and Wheels | Online Tire and Wheel Purchasing Made Easy | Free Shipping | NITTO TRAIL GRAPPLER/BALLISTIC WHEELS
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Old 02-26-2012, 04:59 PM   #32
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Originally Posted by ROBERT CROSS View Post
tvanwave,

As posted above it does help preserve the tires by getting them in out of the cold WNY weather for 5mos, always a plus.

BUT......also, too, such as.

The Classic is a heavyweight...... with under-rated axles.
7300lbs GVWR with two 3500lb axles.
The torsion axles benefit from not having to sit under load, less chance of them taking a "set", which is a common cause of failure, helped by the fact that their carrying some extra weight.


So this gets done every Winter

Bob
Thanks! Looks like I'll need another two jack stands - Ever heard of an AS falling off the stands & on to the hubs?
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Old 02-26-2012, 05:12 PM   #33
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Could you describe to some newbies how you know where to place the jackstands under the proper places on the frame? I'm sure the 34 footer has different instructions than my 31.
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Old 02-26-2012, 05:35 PM   #34
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Could you describe to some newbies how you know where to place the jackstands under the proper places on the frame? I'm sure the 34 footer has different instructions than my 31.
Place the jack where the orange jack stand is in post 32.

In the case of a 34 foot Airstream, place the jack on the axle mounting plate, between the center and rear tire.

Andy
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Old 02-26-2012, 05:50 PM   #35
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Quote:
Originally Posted by tvanwave View Post
Thanks! Looks like I'll need another two jack stands - Ever heard of an AS falling off the stands & on to the hubs?
Hasn't happened here yet...located right on L Erie. Strong westerlies gusting to 60 for the last two daze. Have stored on stands here since 1995..SFSG.

Nevada,
You should be ok using the same placement you see in the photo above.

Use this for jacking...behind forward wheel on both sides.


Bob
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Old 02-26-2012, 06:01 PM   #36
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likewise, last year I had my AS up on two 4000lb stands with a pretty narrow base. We had one heck of a storm with 65mph gusts. I noted some slight shifting on the two stands. This year I bought 4 6000# (ea) stands, not for the weight capacity, but because they have a very wide footprint.

Now it's not going anywhere.
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Old 03-04-2012, 01:37 PM   #37
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ST speed Rating

Go to this Web site:

http://www.goodyearrvtires.com/pdfs/tire-care-guide.pdf

See the chart on Page 9

Unless I have become illeterate, the Goodyear Marathons are 65 MPH tires.

Tire Load Limits (lbs) At Various Cold Inflation Pressures (PSI)
Highway trailer Tread Designs Used In Normal Highway Service *
TIRE SIZE MAX SPEED
RATING (MPH)
INFLATION PRESSURE – PSI
15 20 25 30 35 40 45 50 55 60 65 70 75 80


ST175/80R13 65 670 795 905 1000
1100(B) 1190 1270 1360(C)

ST185/80R13 65 740 870 990 1100


1200(B) 1300 1400 1480(C)

ST205/75R14 65 860 1030 1170 1300


1430(B) 1530 1640 1760(C)

ST215/75R14 65 953 1110 1270 1410


1520(B) 1660 1790 1870(C)

ST205/75R15 65 905 1070 1220 1360


1480(B) 1610 1720 1820(C)

ST225/75R15 65 1060 1260 1430 1600 1760 1880 2020


2150(C) 2270 2380 2540(D)

ST235/80R16 65 1720 1920 2090 2270 2430 2600 2730 2870


3000(D) 3140 3260 3420(E)


Beginner
* The Goodyear Tire & Rubber Company periodically updates its product information.
For the most current information, please visit the RV Tire section of Goodyear’s website at Goodyear RV Tires.
LOAD /INFLA TION INFORMATION

9

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Old 03-04-2012, 01:58 PM   #38
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The question of whether ST's are speed rated goes on and on.

The government does not require it for ST's and maybe not for LT's either (seem to remember the latter from somewhere, but many are speed rated anyway).

Any manufacturer can do the tests and advertise a speed rating. This confuses the issue.

Goodyear says you can go 75 if you increase pressure to 75 psi with a D load rated tire.

Something is wrong here. Goodyear specifically states you can go 75 with 75 psi in another place on their website; that memo has been cited many times in this thread and others. Goodyear blurs the question and maybe that is to their advantage for marketing purposes.

I don't like using a product at its maximum ability. Given that Goodyear states 65 mph in one place and 75 in another, I would opt for the lower limit. Why run a tire upon which so much relies, at its maximum, hour after hour, mile after mile? Maybe going 65 with 75 psi would be better, but why call it a Load Range D tire if it is supposed to be inflated 10 psi more than standard with LR D tires? The ambiguities here helped us choose LT tires.

Gene
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Old 03-04-2012, 08:10 PM   #39
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I fail to see any advantage, any at all, to inferior tires. For a trailer that is going up the road to sit at the lake site, okay. Otherwise, not in the least.
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Old 03-05-2012, 12:18 AM   #40
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When we bought our Airstream 25' Tradewind in 2004 it had 7.00X15 load range C's on it. Not catching that it really needed load range D's I replaced them with Denhams 7X15 load range C's (45 psi) for 50.00 a tire. This is when we lived in Tucson, AZ. Well, we traveled all over AZ went to Rock Port, TX and back, went to Spring, TX where we relocated to,took her to Macon, GA then from there we outlined the state of Flordia all the way to Key West then back to Spring, TX. She has been to Beaumont,TX and a few other places in TX all on the Denham's. Between all this she sat for months at a time. Now, I, myself, mounted and roadforced them then balanced the wheel and drum as an assembly. I also keep a close eye on the air pressures. Drivingwise, I never drive over 65mph and usually run around 63ish. I watch for "obstructions" as I drive, as much as possible. Lucky or careful these tires served me well. So much so I am currently in the process of replacing them with Carlisle 205/90/15's (load range D/ 65 psi) which are the equlivent of 7.00X15 according to the stamp on the tire. I will be mounting and balancing them myself but no roadforce this time as I do not have access to a machine that is capable. I am installing Centramatics this time though. Any way, this is my take on Bias Plys.
I've never the term roadforced. What is that?
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Old 03-05-2012, 01:11 AM   #41
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I meant I'd never heard that term roadforced.
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Old 03-05-2012, 01:22 AM   #42
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I meant I'd never heard that term roadforced.
Hi, Roadforce is a process of a certain type of wheel balancer; It runs the tire on a roller and determines where to put the weights due to things like out of roundness of the tire, and more. We had one at the dealer that I retired from, but I never had to use it. [not my job at the time] Someone who has used one could give a better explaination than I can.
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