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Archive for October, 2006
Open vs. Closed Shoulder Truck Tires
Posted by Camerone on October 9, 2006
What are the advantages of having a closed shoulder truck tire in a long haul application?
I will answer you question with a little history. In the mid-'80's, the Goodyear G167 was the drive tire of choice for many line haul fleets. As the popularity of air spring suspension systems grew, the open-shouldered tread pattern of the G167 proved to be vulnerable to heal and toe or alternate lug wear. With the introduction of the G372 LHD (now called the G372A LHD) drive tire (with a closed shoulder tread design), these wear conditions were much less evident.
Changing the original tire size of a 53 ft trailer?
Posted by Hakan on October 8, 2006
If I change the original tire size of a 53 ft dry van trailer, does this have any negative effect on fuel economy, ABS brakes, brake claibration and performance, axles or anything which might be releveant?
My truck tires are 11R22.5 and I want the same size in trailer. I am interested in buying a new trailer but original trailer tire size is diferent than 11R.22.5.
The seller offered to have them changed to 11R22.5, but is this right to do.
You haven't mentioned what the current tire size is on this trailer. If it happens to be 11R24.5, the diameter of the is about 2 inches more than the 11R22.5 tire. If the current size is 295/75R22.5, the diameter change goes about 1 inch the other way. Finally, if the current tire size is 285/75R24.5, the diameters are nearly identical. I don't think that you would have any particular problems with any of the items you've mentioned but, it would be best to check with the trailer manufacture regarding the ABS and brake calibration questions.
TIRE COSTING CALCULATION
Posted by Glenroy on October 7, 2006
Is there a calculation or principle used to calculate the cost of tire wear for delivery vehicles?
TMC (Technology and Maintenance Council) has a recommended practice (RP208B) called "Tire Cost Determination". The RP not only describes all the factors that can affect the cost of tires and the care of tires, it has a sample worksheet to use to make your calculations.
ʓƵ?̬
Posted on October 7, 2006
ʓƵ?ַ̬:
ʓƵ?̬ςԘ,ʓƵ?̬?ʓƵ?̬վ,ʓƵ?̬ƀ…?Ɉ˼?ǩʓƵ?̬?̆?,?Ɉ˼?ǩʓƵ?̬ʒ.?Ɉ˼?ǩʓƵ??ӑ,?Ɉ˼?ǩʓƵ?̬â?Ѯ ?Ɉ˼?ǩʓƵ?̬ʒ???Ɉ˼?ǩɫǩʓƵ?̬Ԛϟ???Ɉˊӆ??̬ӎϷ???Ɉ˼?ǩʓƵ?̬???Ɉˊӆ??̬ȭ??Ƶ?ַ̬,ʓƵ?̬ςԘ,ʓƵ?̬?ʓƵ?̬վ,ʓƵ?̬?,ʓƵ?̬ƀ,â?ъӆ??̬?ؖ??????ʓƵ?̬??ӯҴ?̬?ؖ?????ʕћ?ף??쀴ˑ˷MM??ʓƵ?ؖ??ɣ?
I think you have stumped me on this one.
19.5 tires on 34′ winebego pusher
Posted by Gary on October 6, 2006
Tires are 8R19.5. On deeply rutted pavement I sometimes get severe side to side movement,will wider tires on the front help this problem or possibly make it worse. Also, tires are about 6 years old but still look good and have lots of tread left should they be replaced?
To answer your first question...I don't think that wider tires will make your RV better or worse for tracking in road ruts. For the second question, I will offer the following statement from our customer service group: Goodyear does not state a "uniform" replacement age for tires because there are many conditions that dictate a tire's safe and effective life span. Some factors that influence how long a tire will last are:
Usage per year - more frequent usage will result in longer life
Vehicle storage practices (6 months loaded with little or no rotation is not good!)
Usage in warmer climates can also negatively impact a tire's overall life due to greater extreme ozone exposure
A tire should be replaced when cracks are more than 2/32 " deep or internal components of tire (steel or fabric body plies) are visible. However, the tires in question should be inspected by an authorized Goodyear dealer to determine whether or not they are serviceable.
For more information on tire age and replacement, click on the link below:
http://www.goodyear.com/rv/tirecare/age.html