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Archive for September 8th, 2006
Drive Tire Cupping
Posted by ed on September 8, 2006
We put new tires on about 8 or 9 months ago. They have alot of miles on them. The tires were great for the first 2/3 months but, now they are cupping badly. What causes this?
Especially if you have an air ride suspension, it could be worn shocks that are keeping the drive tires from having "firm" contact with the road. Tires do not like to "bounce".
Tire Pressure
Posted by justin on September 8, 2006
http://www.goodyear.com/rv/tirecare/loadinflationtables.html
On that Goodyear link it states “for this reason, air pressure should be checked based on the load on each individual tire. Inflation pressure should be adjusted to handle the maximum tire load, and all tires on the axle should carry the same inflation pressure.”
My question is: If a coach has an A-Frame front suspension, as opposed to an axle, should front steer tires be the same pressure according to the highest weight front wheel?
My conventional wisdom says yes but the statement above has me questioning as Im not sure if a a-frame suspended front end is still considered an axle.
Conventional wisdom is correct. The type of suspension does not change the load the tire is carrying. If you have a way to determine the weight being carried by each tire when the vehicle is loaded, determine the tire pressure for that "position" by using the highest load being carried in that position (steer, drive or trailer "axle".