On Tue, Nov 9, 2021 Andy wrote:
Good afternoon Roger,
I wanted to double check myself regarding tire position weights. In reading your blogs you said for double-axle trailers the tire pressure should be the max cold pressure amount as stamped on the tire because of trailer sway and turning forces on those tires is different than on a motorhome. Is it important to get individual tire position weights for trailers?
As I just got a new 5th wheel trailer and I am getting ready to install a Tire Tracker tire pressure monitoring system I have a few questions:
1. Do I need to get 4 corner weights (or in this case 8 tire position weights)?
2. Is load on each tire position important for trailers vs. motorhomes, or is axle weight sufficient? (I can get overall and axle weights easy enough. And, I just got an appointment for tire position weights with a SmartWeigh club in FL, if you think it is important.)
3. When I go to get the weights, should ALL holding tanks be full or only Fresh Water? (The SmartWeigh group literature states that they only want the fresh water tank full.)
The 4 tires on my 5th wheel trailer are: (And the spare, too.)
Carslie CSL16 ST235/85R16
Load index 132/127
Speed Rating: M (81 MPH)
Max Load Single 4400 lbs. at 110 psi. cold
Max Load Dual 3860 lbs. at 110 psi. cold
DOT JETB 1821
The 6 tires on my Ford F450 DRW are:
Max. Load Single 3970 lbs. 110 psi. cold
Max Load dual 3750 lbs. 110 psi. cold
Then they have LRG in an oval followed by 128/126N in another oval and then DOT B6 YB NFL X 0621 in various ovals
I don’t have weights on the trailer yet but the GAWR is 7,000 lbs. GVWR is 17,000 lbs.
Thank you very much, Andy