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Old 02-29-2012, 02:25 PM   #15
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My concern is that the MH tires as delivered were severely under inflated and I drove home at interstate speeds for almost 700 miles. How do I know they are going to be safe to use over their remaining life?
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Old 02-29-2012, 03:26 PM   #16
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My concern is that the MH tires as delivered were severely under inflated and I drove home at interstate speeds for almost 700 miles. How do I know they are going to be safe to use over their remaining life?

On the front of the tires should be a (4) digit DOT #. The first (2) #'s will be the week of manufacture and the last (2) #'s the year of manufacture; ie, 2009 means made the 20th week of 2009. Usual tire age before replacement is 6-7 years assuming they've been maintain. If your gut instinct feels they need checked, have it done.
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Old 02-29-2012, 04:29 PM   #17
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Just for FYI and trivia. The inflation cages that are used in truck tire shops is a throw-back to the time when almost all truck tires used the split-rim wheel design. The split-rim was used to seat the tire onto the wheel, and if the split-rim was not properly installed and seated, it would launch like a bullet. It was not uncommon for the split-rim to not be seated and therefore many workers were seriously injured or killed when it came flying off the wheel. Therefore, the rules required the use of the inflation cage to catch the split-rim when it came off.
Today, I don't know if the split-rims are used on any new vehicles, but the shops continue to use the cage just for safety.
This is the way it was years ago!
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Old 03-02-2012, 10:38 AM   #18
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I use the exact same inflator that DocJ uses. I moded mine to have a 15' hose on it. Works great. A few bucks for piece of mind. Easy choice.
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Old 03-02-2012, 10:58 AM   #19
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I do use a short extension with a clamping connection, a gauge and a trigger. The clamping connection makes it easier to work with ~100 psi pressure hoses; you will get more accurate inflation pressures. The 12 foot extension, I believe, is recommended under OHSA for inflation of high pressure tires; IMHO it's not needed. Here's the sort of device I own: Amazon.com: Campbell Hausfeld MP6000 Tire Inflator with Gauge: Home Improvement
I would think that you could buy this one and just replace the hose part with a longer one. The nice thing about the more expensive one mentioned above is that it is also a deflator, so you don't have to be near the tire until you are done.
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Old 03-02-2012, 01:17 PM   #20
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I just went to Northern Tool and bought a $12.99 manager special inflator. After opening the pkg, I found out the fittings are not standard fittings. I took the hose to an Industrial Hose company and had them splice 12ft of hose and reuse one of the fittings, $18.99. So for $32 I have a safe way to inflate my tires.
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Old 03-02-2012, 11:01 PM   #21
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Nice solution!
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Old 03-02-2012, 11:06 PM   #22
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i wouldnt worry about a tire exploding. You wouldnt have access to a strong enough compressor.
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Old 03-02-2012, 11:21 PM   #23
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So, I know it's not optimal, but is it SAFE to run those pressures as long as you don't exceed maximum weight?
Yes, those pressures are what you should use if you've never weighed the rig. It's usually too much pressure but that's better than too little. The tire companies do caution you that the tires are more easily damaged when hitting potholes and curbs and have less surface area in contact with the road so less traction.
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Old 03-02-2012, 11:23 PM   #24
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On the front of the tires should be a (4) digit DOT #. The first (2) #'s will be the week of manufacture and the last (2) #'s the year of manufacture; ie, 2009 means made the 20th week of 2009. Usual tire age before replacement is 6-7 years assuming they've been maintain. If your gut instinct feels they need checked, have it done.
Even the tire companies don't recommend changing the tires at 6 or 7 years!
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Old 03-02-2012, 11:24 PM   #25
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My concern is that the MH tires as delivered were severely under inflated and I drove home at interstate speeds for almost 700 miles. How do I know they are going to be safe to use over their remaining life?
If they were 20% underinflated then yes, you should have them inspected both inside and out. At 20% low the tire is considered to have been run flat.
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Old 03-02-2012, 11:38 PM   #26
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Thanks Mr D. Update, the dealer has admitted at least four new coaches went out with low pressure, one wit all six at 40 pounds. They are admitting it is their problem and are buying replacements. I'll have my tires looked at by both the local dealer (not where the coach was purchased) and a Goodyear dealer. I'm likely going to build a file and demand at least five be replaced. One of the rears was at 96 so it may be ok.
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Old 03-03-2012, 12:16 AM   #27
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Thanks Mr D. Update, the dealer has admitted at least four new coaches went out with low pressure, one wit all six at 40 pounds. They are admitting it is their problem and are buying replacements. I'll have my tires looked at by both the local dealer (not where the coach was purchased) and a Goodyear dealer. I'm likely going to build a file and demand at least five be replaced. One of the rears was at 96 so it may be ok.
Thats a heck of an offer. Cant imagine why the pressures dropped so much.
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Old 03-03-2012, 07:14 AM   #28
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Thanks Mr D. Update, the dealer has admitted at least four new coaches went out with low pressure, one wit all six at 40 pounds. They are admitting it is their problem and are buying replacements. I'll have my tires looked at by both the local dealer (not where the coach was purchased) and a Goodyear dealer. I'm likely going to build a file and demand at least five be replaced. One of the rears was at 96 so it may be ok.
That one rear was carrying the load of two.




My problem is finding a clip-on that doesn't leak. Even with new valve stems, they all seem to leak if there is any side movement of the hose.
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