When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Since I'm thinking about buying a travel trailer, I've been trying to figure our all the weight stuff (GCWR, GVWR, etc) to decide how much TT I can tow. It became very obvious to me that I needed to know the real weight on my truck. Today I stopped at a truck stop and used the CAT Scale. I'm not sure what the error tolerance is on that type scale (thinking it could be pretty high since the measurement range is MUCH higher than the weight I was interested in), but at least I have SOME numbers, which is better than what I had before. I thought this info may be of interest to other Screw owners who have not weighed.
The Truck: 02 Screw XLT, 2WD, 4.6L, factory tow package, factory bedliner, chrome tube side steps, factory sunroof. I weighed with exactly 1/2 tank of gas showing and not much in the truck other than me (235 LBS) and a few odds and ends.
The results: Front Axle weight was 2820, Rear axle was 2240, for a total of 5060. As mentioned above, those weights do include me at 235 Lbs. The scale obviously doesn't measure any more precise than 10 lb increments and it could be 20 lb increments.
Sounds about right for a 1/2-ton Screw. Buying some gravel once I tared at about 4500 with me (150ish) in it in my '90 F150 reg cab longbed, with probably around 20 gallons of gas in the tank (120lbs).
msu , the cat scales are certified so the weight you get is as acurate as possible . You could weigh yourself on one and get pretty close to what your bathroom scale shows .
msu , the cat scales are certified so the weight you get is as acurate as possible .
I understand they're certified, but every measuring device I've ever seen, certified or not, has a tolerance, usualy given as a +/- percentage of full scale reading. The CAT scale measuring capability (full scale) will be well over 80,000, since that's the normal legal limit on 18 wheelers, granted that's measured with 3 seperate platforms (one for each axle set). If I assume it's total 99K capability and equally distributed so that each platform is 33K lbs (which I'm sure is not true), then a +/- 1/2% FS would translate to +/- 165 lbs per axle.
And I'm not saying it's off by that much (although 1/2% FS is PRETTY TIGHT TOLERANCE), all I'm saying is that weighing my truck on that scale is like trying to weigh my cat on my bathroom scale that goes to 300 lbs. And read a bathroom scale box sometime- if I remember correctly, the tolerance is like +/- 5% or so of FS.
Originally Posted by blackf3504dr
You could weigh yourself on one and get pretty close to what your bathroom scale shows .
I assume that was a joke. I know my bathroom scale isn't overly accurate, but it's obvious from the weigh ticket that the truck scale reads in nothing less than 10 lb increments, and I can't say for sure that it isn't 20 lb increments. Whether it's accurate or not, the precision (or lack of) alone would make it a little difficult for that.
I agree with blackf3504dr, those scales are very accurate. They may not be telling you all of the digits, but they read it. Just think if the truck was hauling lobster, $20 plus a pound and the scale only read to the nearest 10lb. thats $200.00 in product lost or gained per truck, or axle, I dont think any company is going to let this happen.
Just think if the truck was hauling lobster, $20 plus a pound and the scale only read to the nearest 10lb. thats $200.00 in product lost or gained per truck, or axle, I dont think any company is going to let this happen.
just my opinion
I could be wrong, but I don't think a company buying or selling lobsters is going to rely on a CAT truck scale to tell them how much lobster they're selling or buying. But hey, what do I know.
There are a lot of companies that weigh the truck in , and again on the way out to asure they received or loaded the correct amount of product . Some companies do rely on Cat scales to verify the load , but you are correct , there is a magin of error on any scale and a limitation on it's ability to weigh something in the lower registry ( I do weigh my cat on the bathroom scale ) . It is interesting to see the results of your truck being weighed and I think more owners should do it so they know for sure what they can and cannot haul/tow with their truck . BTW , Cat scale guarantees their weight to be correct , so if you get pulled around back at the "chicken coop" for being overweight Cat scale will pay the fine !
I guess this is not what the post was about, I didnt mean to start a "CAT" fight, lol.
I just wish I had an 02 SuperCrew to weigh!! I am stuck with my 94 ex-cab.
I know that here in Utah, you can get away with being over-weight in a light truck, they never check, I have never even seen them check weight when a crash is involved. They always bring in the "truck inspectors" to check the commercial trucks after a crash. You may want to look into some airbags in the back to make up for the extra weight. Your truck is long enough that it should tow pretty well if the 4.7 has enough power, I think that and your rear end gearing will be your limmiting factor.
The scale must have accuracy equal to that of the DOT scales, which measure to 1 tenth of 1 pound. Using the tolerances of a bathroom scale to demonstrate inaccuracy is likening apples to fish heads. A DOT scale, (and therefore a CAT scale) CAN measure the weight of a person, far more accurately than a bathroom scale.
Un-dampened DOT scales are not used nowadays, as truck drivers would jerk the rig to a stop, therefore damaging the $600,000 beam scale.
The scale must have accuracy equal to that of the DOT scales, which measure to 1 tenth of 1 pound. Using the tolerances of a bathroom scale to demonstrate inaccuracy is likening apples to fish heads. A DOT scale, (and therefore a CAT scale) CAN measure the weight of a person, far more accurately than a bathroom scale.
Un-dampened DOT scales are not used nowadays, as truck drivers would jerk the rig to a stop, therefore damaging the $600,000 beam scale.
This will be my absolute last reply to this as it is completely off the topic.
I'm not an expert on scales and I don't know your background, but you can not accurately measure the weight of a person on a scale capable of weighing tens of thousands, or even hundreds of thousands of lbs. Sorry.
I researched and found that CAT uses 200K lbs scales with 10,000 scale graduations of 20 lbs each. I also found that NIST (National Institutes of Standards and Technology) Handbok 44 code would allow that scale a 3 graduation tolerance, or 60 lbs. when checked with a 25K lb test weight.
This information agrees with what I found on the NIST website.
I'm sure some of you will continue to believe that you can accurately weigh yourself on a CAT truck scale and that it is accurate to the fraction of a pound. If you don't understand why that can't be possible then I'm not likely to be able to explain it to you here.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.