By Deanna Tolliver
At an RV rally I took the plunge and had my fifth wheel and truck weighed. Although many RV safety experts recommend it, I’ve been making excuses for not having it done (too far from an event that offered it or didn’t want to wait in line on departure morning). Also, I was a little afraid of what I might find out.
This particular weigh-in was sponsored by RVSEF (RV Safety and Education Foundation). At this rally, all the rigs were weighed on the last day—departure day—which was convenient because you need to be set up for weighing as you would be going down the road: water in the freshwater tank, fuel, people on board, etc.
Those of us with tow vehicles were asked to meet the afternoon prior to our weigh appointment to weigh our trucks separately. That was a a great idea because no one would have to unhitch the next morning at the appointment.
When I made the appointment, I met my Weigh Team, Trey and Susan Selman. I was asked to fill out a form and provide the following information:
GVWR = Gross Vehicle Weight Rating (of the truck and the trailer, separately)
GAWR = Gross Axle Weight (Both front and rear axles of both truck and trailer)
GCWR = Gross Combined Weight Rating (truck and trailer hitched)
Hitch type: (fifth wheel, gooseneck, travel trailer) and both vertical and tow ratings
Data from the tires (on both the truck and the fifth wheel):
Brand, model, size, load range (LR)
Sidewall rating: Max load single and max load dual ___pounds @ ___psi
Inflation pressure you set your tires (on both truck and trailer)
At the weigh appointment, I was asked to drive up onto the portable scales, first with the truck, then with the trailer. The team then entered those weights into their computer program, and within a few minutes I had a printed report in hand.
Trey went over the numbers with me, and, although I had some trouble areas, he told me how I could manage them by shifting and/or eliminating weight.
For example, the team weighed each wheel position on my fifth wheel. I learned that not only was my trailer weight over on one axle, the printout showed which side and which tire. This information can then be checked against a table showing the maximum weight ratings for the tires. I was very happy to see that even though the weight of one side of the front trailer axle was a little high, I had not exceeded the maximum rating for my tires.
THE OTHER POSITIVE RESULTS were that my pin weight was fine, the truck axle weights were good, and the total GCW (combined truck and fifth wheel weight) was good.
But….I also found out that my fifth wheel exceeded the recommended GVW by about 1,000 pounds . The bulk of that is on the driver’s side, which not coincidentally happens to be the side containing the large kitchen slide—residential refrigerator, convection/microwave oven, stovetop range, large TV, and fireplace. Not much I can do about those, but I’m taking a close look at moving other items on that side to a different location, AFTER trying to downsize those 1,000 pounds!
Having the weights on all four tires is extremely helpful because I can see where the problems are. For example, the front axle of the fifth wheel carries too much weight. The back axle (I have a dual axle fifth wheel) is fine. I’m working on shifting some front axle weight to the back of the trailer and am considering a small storage container on the rear hitch.
Why is all this important? To quote from the RVSEF website: “Exceeding these ratings can cause premature wear and tear on the vehicle’s components. The RV may have failures or need repairs due to excessive weight, although the weight factor may not be clearly evident. In the worst case, an overweight situation creates safety hazards.”
From a tire safety standpoint, Roger Marble (RV Tire Safety) notes that overloaded and under-inflated tires can lead to safety issues. You might be a stickler for keeping your tires inflated at their correct levels, but if you don’t know if your RV is overloaded, you could still have tire issues, such as premature tire wear or tire failure (blowouts).
Now that I know my RV and truck weights, I have some work to do. It will be a challenge, as a full-timer, to downsize the “stuff” in my life even further, and to figure how the best places to keep the rest of it. But it must be done to drive safely down the road.