Originally Posted by jalvin
Lou quick question my rig is still winterized so not much in it, so should I weigh it now or should I weigh it as loaded when we use it? Seems to me empty weight won't tell me if I am overloaded
Sorry, I was out working on the camper all day.
I think you answered your own question anyway.
Loaded for camping is the only way to know what is going on.
So, LONG answer to SHORT question:
Remember it is a 2 step process.
Step 1) Weigh the combination with the truck's front wheels on one platform; the trucks rear wheels on the second platform; and the camper's wheels on the third platform. Ask the operator to record the weights and print your ticket.
Pull away from the scales and DISCONNECT the camper.
Step 2) Pull back on the scales with just your truck. Weigh the truck with the front wheels on one platform and the trucks rear wheels on the second platform. Ask the operator to print the second ticket. (The second weigh just costs a buck at a CAT Scale.)
Hook back up and drive home with your two tickets.
What do you do with the tickets? Glad you asked...
1) Subtract the Truck only ticket total weight from the truck's MAX gross weight to find allowable PAYLOAD.
2) Check the combination weight of truck and camper to make sure it is less than the truck's MAX COMBINED WEIGHT RATING
3) ADD the front and rear axle weights of the Combined ticket to find the trucks GROSS weight and check to make sure it is less that the trucks Maximum Gross weight.
4) Subtract the trucks unhitched weight from (1) from the actual gross weight (from 3) to get the actual PIN weight.
5) Add the pin weight (from 4) to the camper's "connected" wheels weight from the 3rd platform to get the actual camper weight.
Compare the actual camper's weight to the camper's max gross weight from the yellow sticker on the camper (you may have to add the "UVW to the posted camper payload to get the max gross weight of the camper).
Take the camper's wheel loading (platform 3 weight) and divide by 4 (or the number of wheels the camper has) to get the actual tire load. With this number you can tailor the tire pressures to exactly the amount needed for 100% tread/road contact per your manufacturer's tire pressure chart.
Other cool things you can get are the actual axle loadings of your truck and camper. You can compare the actual load to the axle's rated load.