CAT scale readings

[jnm30327]

We started our summer trip (finally!). Trailer was pretty well loaded as we bought extra groceries to keep grocery store visits to a minimum. We started with full water tank, full propane, and empty gray and black. For first time, I stopped at CAT Scale. I got the following readings:

Steer Axle: 7860 lbs
Drive Axle: 0 lbs
Trailer Axle: 6300 lbs
Total Axle: 14,160

Did I do something wrong? I did not disconnect trailer. The hitch weight of the trailer is 791 lbs. The GVWR of the trailer is 7600 lbs. The GVWR of the Toyota Tundra Crewmax is 7200 lbs. Am I in any trouble? The total of the 2 GVWR is 14,800 lbs so looks like I have something to spare; but I am not sure of how the CAT readings measure to the GVWR of the trailer and truck taken separately.

[jeffmc306]

jnm30327, congratulations on your summer trip!

I think you may have missed the middle scale segment by pulling too far forward.

You’ll want to do a 3-pass method next time:
1) Truck and trailer connected with WD.
2) Truck and trailer connected without WD
3) Truck alone.

Watch to make sure the front axle is on one platform, rear axle on the next and the trailer on the last one.

Measure your front and rear fenders height from the ground to the fender opening on each pass to help understand if the WD is doing its job or if you need to make adjustments. This gives you an idea of how level the truck is.

The number to watch carefully is your rear axle scale number vs. the Tundra’s Rear Gross Axle Weight Rating (RGAWR). We had a RAM 1500 that’s rear max was 4100 lbs. We were right at that number before stepping up to a RAM 2500 with 6390 lbs. RGAWR. You’ll find it on the door sticker. No more payload worries!

Hope that helps!

[jnm30327]

What is "WD"?

[JonDNC]

Originally Posted by jnm30327

What is "WD"?

Weight Distribution

[ROBERT CROSS]

I like to use a Max WD ticket also...Good to know the limits
of the system.👍
Notice that the tow vehicle front axle weight with WD set is 100lb lighter than it is without the Airstream. The goal is return front steering weight keeping the trailer level.

Bob
🇺🇸

[Redlac]

This may be a nit picky question, but when you are weighing the TV do you include the hitch and bars in this weight?

[Fungus]

Use this worksheet: https://fifthwheelst.com/documents/w...0cat_scale.pdf

Then load it into: https://fifthwheelst.com/conventiona...alculator.html

It’s not perfect because it confuses the two definitions of tongue weight, but it’s close.

I add one other weighing…the individual trailer axles.