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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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I have a Ford LNT9000 Semi tractor.
I uploaded some pictures he http://igor.chudov.com/tmp/Ford-LNT9000/ The nameplate is pictured he http://igor.chudov.com/tmp/Ford-LNT9...T9000-0007.jpg Its name plate on the door says, GVWR 44,800 lbs. What exactly does it mean? Someone told me that this means that the total weight of truck plus trailer (combined) cannot exceed 44,800 lbs. This makes no sense to me, as GVWR is not the same as GCWR, and if they wanted to put GCWR on the truck, they would say so. So... How big of a trailer can this truck tow? Sorry for being so confused, guys, I would hate to realize that I cannot tow a trailer that would be as big as I would hope to be able to. The trailer I have is the low boy behind the truck, you can see it on pictures. My own reasoning is that GVWR is the max loaded weight of the front and back axles of the truck, and it does not include the weight of the rear axles of the semi trailer. So the GCWR capacity is limited by 44,800 plus 34,000 for the rear axles of the semi trailer, or 78,800 lbs GCWR. Who is right? Please, help! |
#2
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Ignoramus21956 wrote:
I have a Ford LNT9000 Semi tractor. I uploaded some pictures he http://igor.chudov.com/tmp/Ford-LNT9000/ The nameplate is pictured he http://igor.chudov.com/tmp/Ford-LNT9...T9000-0007.jpg Its name plate on the door says, GVWR 44,800 lbs. What exactly does it mean? Someone told me that this means that the total weight of truck plus trailer (combined) cannot exceed 44,800 lbs. That person is wrong to a point. GVWR = Gross Vehicle Weight Rating - This means that the total weight of the tractor itself cannot exceed 44,800 pounds. This makes no sense to me, as GVWR is not the same as GCWR, and if they wanted to put GCWR on the truck, they would say so. GCWR - Gross Combined Weight Rating - The total weight of tractor and whatever the load behind you is. So... How big of a trailer can this truck tow? How big have you got? Seriously. Here is a simplified version. You have a trailer rated for 40,000 pounds GVWR. Then you have your tractor with a 44,800 pound GVWR. Let's say that your empty trailer weighs in at 8,000 pounds. And your tractor weighs in at 10,000 pounds. You have a GCWR of 84,800 pounds. You have the capacity to load up to 66,000 pounds of cargo. (Subtract out the actual weight of the trailer and the tractor from the GCWR + drop the 800 pounds off the tractor for a reason that I'll explain in a bit.) When you load the trailer you need to make sure that once loaded the TOTAL weight on the trailers two axles do not exceed the 40,000 pound number and the total weight on the tractors three axles doesn't exceed 44,000 pounds. Under the above scenario with the 66,000 pound load and with the numbers you would be running with a GCWR of 84,800 pounds. Your actual scaled weight would be 84,000 pounds though. 800 pounds under the legal limit for your rig. (that is why you toss the 800 pounds out, it gives you a buffer of 800 pounds) Sorry for being so confused, guys, I would hate to realize that I cannot tow a trailer that would be as big as I would hope to be able to. The trailer I have is the low boy behind the truck, you can see it on pictures. My own reasoning is that GVWR is the max loaded weight of the front and back axles of the truck, and it does not include the weight of the rear axles of the semi trailer. So the GCWR capacity is limited by 44,800 plus 34,000 for the rear axles of the semi trailer, or 78,800 lbs GCWR. Who is right? Your math is correct. But drop the 800 pounds for the reason I gave. Have it on the registration and insurance paperwork but when figuring your loads leave it out. That buffer could save you BIG fines if you needed it. Please, help! -- Steve W. |
#3
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Posted to rec.crafts.metalworking
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On 2012-04-11, Steve W. wrote:
Ignoramus21956 wrote: I have a Ford LNT9000 Semi tractor. I uploaded some pictures he http://igor.chudov.com/tmp/Ford-LNT9000/ The nameplate is pictured he http://igor.chudov.com/tmp/Ford-LNT9...T9000-0007.jpg Its name plate on the door says, GVWR 44,800 lbs. What exactly does it mean? Someone told me that this means that the total weight of truck plus trailer (combined) cannot exceed 44,800 lbs. That person is wrong to a point. GVWR = Gross Vehicle Weight Rating - This means that the total weight of the tractor itself cannot exceed 44,800 pounds. Thanks. This makes no sense to me, as GVWR is not the same as GCWR, and if they wanted to put GCWR on the truck, they would say so. GCWR - Gross Combined Weight Rating - The total weight of tractor and whatever the load behind you is. Right. So... How big of a trailer can this truck tow? How big have you got? Seriously. Well, I have a Trailking lowboy for the trailer. It is on a couple of the pictures on that webpage. http://igor.chudov.com/tmp/Ford-LNT9...T9000-0002.jpg Its empty weight is 16,000 lbs, maximum gross weight is 76,000 lbs, and capacity is 60,000 lbs. I got this information from the Trailking company. Here is a simplified version. You have a trailer rated for 40,000 pounds GVWR. Then you have your tractor with a 44,800 pound GVWR. Let's say that your empty trailer weighs in at 8,000 pounds. And your tractor weighs in at 10,000 pounds. You have a GCWR of 84,800 pounds. You have the capacity to load up to 66,000 pounds of cargo. (Subtract out the actual weight of the trailer and the tractor from the GCWR + drop the 800 pounds off the tractor for a reason that I'll explain in a bit.) When you load the trailer you need to make sure that once loaded the TOTAL weight on the trailers two axles do not exceed the 40,000 pound number and the total weight on the tractors three axles doesn't exceed 44,000 pounds. Under the above scenario with the 66,000 pound load and with the numbers you would be running with a GCWR of 84,800 pounds. Your actual scaled weight would be 84,000 pounds though. 800 pounds under the legal limit for your rig. (that is why you toss the 800 pounds out, it gives you a buffer of 800 pounds) Sorry for being so confused, guys, I would hate to realize that I cannot tow a trailer that would be as big as I would hope to be able to. The trailer I have is the low boy behind the truck, you can see it on pictures. My own reasoning is that GVWR is the max loaded weight of the front and back axles of the truck, and it does not include the weight of the rear axles of the semi trailer. So the GCWR capacity is limited by 44,800 plus 34,000 for the rear axles of the semi trailer, or 78,800 lbs GCWR. Who is right? Your math is correct. But drop the 800 pounds for the reason I gave. Have it on the registration and insurance paperwork but when figuring your loads leave it out. That buffer could save you BIG fines if you needed it. OK, thanks. We are trying to figure out how to register all that stuff to be legal and not questionable. The equipment is that Ford LNT9000 and the Trailking 76,000 lbs lowboy. i |
#4
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On 4/10/2012 11:04 PM, Ignoramus21956 wrote:
On 2012-04-11, Steve wrote: Ignoramus21956 wrote: I have a Ford LNT9000 Semi tractor. .... Its name plate on the door says, GVWR 44,800 lbs. What exactly does it mean? Someone told me that this means that the total weight of truck plus trailer (combined) cannot exceed 44,800 lbs. That person is wrong to a point. GVWR = Gross Vehicle Weight Rating - This means that the total weight of the tractor itself cannot exceed 44,800 pounds. .... This makes no sense to me, as GVWR is not the same as GCWR, and if they wanted to put GCWR on the truck, they would say so. GCWR - Gross Combined Weight Rating - The total weight of tractor and whatever the load behind you is. Right. So... How big of a trailer can this truck tow? How big have you got? Seriously. .... Its empty weight is 16,000 lbs, maximum gross weight is 76,000 lbs, and capacity is 60,000 lbs. I got this information from the Trailking company. Here is a simplified version. You have a trailer rated for 40,000 pounds GVWR. Then you have your tractor with a 44,800 pound GVWR. Let's say that your empty trailer weighs in at 8,000 pounds. And your tractor weighs in at 10,000 pounds. You have a GCWR of 84,800 pounds. You have the capacity to load up to 66,000 pounds of cargo. (Subtract out the actual weight of the trailer and the tractor from the GCWR + drop the 800 pounds off the tractor for a reason that I'll explain in a bit.) When you load the trailer you need to make sure that once loaded the TOTAL weight on the trailers two axles do not exceed the 40,000 pound number and the total weight on the tractors three axles doesn't exceed 44,000 pounds. ..... OK, thanks. We are trying to figure out how to register all that stuff to be legal and not questionable. .... Good for registration...only other "gotcha'" is alluded to is what are local axle load limits that may be under what the vehicle ratings are capable of. I mentioned in one of the previous threads the conundrum we're in in this area of being on border of multiple states; each has its own limits on weights/lengths and they're not consistent (and they don't care if you came from the higher into the lower). You can get by a weight restriction some places by a permitting process; two of the five nearby states either will not permit or will not if the load can be broken. The biggest difference is the length; OK allows 2ft over what KS does but NM is 700 lb under the limits of each of those two as well as the shorter length. It's not a lot but it can bite. And, of course, in metro areas there are often local restrictions to boot and probably 80% of violations are on individual axle limits as opposed to overall owing to loading nonuniformity. This is a real key w/ heavy equipment like a dozer or somesuch that is a concentrated weight to ensure have it balanced properly and enough axles and axle spacings. That's why see the many-axled trailer in so much of the NE and upper midwest--MI must be particularly restrictive from what I've observed when traveling to the Monroe fossil and Davis-Besse nuclear power plants in my former days... -- |
#5
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On Wed, 11 Apr 2012 08:54:18 -0500
dpb wrote: big snip That's why see the many-axled trailer in so much of the NE and upper midwest--MI must be particularly restrictive from what I've observed when traveling to the Monroe fossil and Davis-Besse nuclear power plants in my former days... Too lazy to look it up, but you can legally scale ~160,000lbs gross in MI. That is why they have all those axles and yes, you can still get busted for a misload. Commonly called 11 axle, three on the tractor and eight on the trailer. Brother-inlaw used to drive one hauling steel. Back then (~30 years) if you were talented and lucky you could even get away with more by playing with the air axles as you crossed the weigh-station scale ![]() You should try sitting on one of our viaducts sometime and wait for one of those loaded 11 axles rigs to rumble by. And the Sheeple wonder why our roads are crap... -- Leon Fisk Grand Rapids MI/Zone 5b Remove no.spam for email |
#6
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On 4/11/2012 2:06 PM, Leon Fisk wrote:
On Wed, 11 Apr 2012 08:54:18 -0500 wrote: big snip That's why see the many-axled trailer in so much of the NE and upper midwest--MI must be particularly restrictive from what I've observed when traveling to the Monroe fossil and Davis-Besse nuclear power plants in my former days... Too lazy to look it up, but you can legally scale ~160,000lbs gross in MI. That is why they have all those axles and yes, you can still get busted for a misload. Commonly called 11 axle, three on the tractor and eight on the trailer. Brother-inlaw used to drive one hauling steel. Back then (~30 years) if you were talented and lucky you could even get away with more by playing with the air axles as you crossed the weigh-station scale ![]() You should try sitting on one of our viaducts sometime and wait for one of those loaded 11 axles rigs to rumble by. And the Sheeple wonder why our roads are crap... Been there, done that ![]() coal trains to clear; was a exit off the viaduct that was a gravel/wash pit, apparently, that was a regular stream of vehicles). They're really hell in the snow...was there one year at roughly Christmas time and had roughly 2-ft--trucks stranded everywhere. To my great surprise, they were saying that was an all-time record for a 24-hr accumulation and I was also amazed at how it nearly completely paralyzed Detroit area. I had always presumed they would have the means of dealing w/ a little thing like a couple of feet, only... This would have been toward end of the 80s if memory serves correctly. We were doing the S-meter upgrade at Monroe and last I worked on it would have been about that time...my how time has flown. ![]() -- |
#7
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On Wed, 11 Apr 2012 14:24:26 -0500
dpb wrote: snip They're really hell in the snow...was there one year at roughly Christmas time and had roughly 2-ft--trucks stranded everywhere. To my great surprise, they were saying that was an all-time record for a 24-hr accumulation and I was also amazed at how it nearly completely paralyzed Detroit area. I had always presumed they would have the means of dealing w/ a little thing like a couple of feet, only... Just my opinion, but I don't think they want to take chances with all the crazy four wheelers around them. I haven't had to drive one under those conditions but that is what I would be worrying about. If those big rigs have a load and don't have to come to a complete stop... bah! you already know this ![]() The couple feet of snow isn't a problem for a single storm, but if the wind blows and it doesn't quit for several days... then there is a big problem. The big rigs have to stop because they can't make it around all the four wheelers parked in the road or even see them at times (shrug). -- Leon Fisk Grand Rapids MI/Zone 5b Remove no.spam for email |
#8
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On 4/11/2012 2:42 PM, Leon Fisk wrote:
On Wed, 11 Apr 2012 14:24:26 -0500 wrote: snip They're really hell in the snow...was there one year at roughly Christmas time and had roughly 2-ft--trucks stranded everywhere. To my great surprise, they were saying that was an all-time record for a 24-hr accumulation and I was also amazed at how it nearly completely paralyzed Detroit area. I had always presumed they would have the means of dealing w/ a little thing like a couple of feet, only... Just my opinion, but I don't think they want to take chances with all the crazy four wheelers around them. I haven't had to drive one under those conditions but that is what I would be worrying about. If those big rigs have a load and don't have to come to a complete stop... bah! you already know this ![]() The couple feet of snow isn't a problem for a single storm, but if the wind blows and it doesn't quit for several days... then there is a big problem. The big rigs have to stop because they can't make it around all the four wheelers parked in the road or even see them at times (shrug). It wasn't them parked; they were just flat unable to get enough traction w/ all the axles to push the snow out of the way; they were completely helpless to even start, so stopping wasn't the issue. ![]() This was a single afternoon/overnight event and almost no wind (at least by W KS standards; it didn't drift badly at least). The large trucks were blocking almost every major throughway ramp in the area. On the way to the airport I saw fewer than a couple dozen vehicles moving of any type; the place was essentially shut down. Had to use side streets for quite a ways from the area of Monroe plant towards the city before finally found a place to get to the freeway. Never would have dreamed it if hadn't been there... -- |
#9
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On Wed, 11 Apr 2012 15:30:07 -0500
dpb wrote: snip It wasn't them parked; they were just flat unable to get enough traction w/ all the axles to push the snow out of the way; they were completely helpless to even start, so stopping wasn't the issue. ![]() Never seen anything quite like that on this side of the state. Trucks may have been empty? a lot of steel went towards Detroit back then with little if anything on the back haul. A lot of the 11 axles back then were steel haulers. I remember the city workers over there on strike a few times, it didn't take much of storm to shut things down. Wasn't enough white-collar's to replace striking blue-collars ![]() you happened upon a strike though... -- Leon Fisk Grand Rapids MI/Zone 5b Remove no.spam for email |
#10
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![]() Leon Fisk wrote: On Wed, 11 Apr 2012 15:30:07 -0500 dpb wrote: snip It wasn't them parked; they were just flat unable to get enough traction w/ all the axles to push the snow out of the way; they were completely helpless to even start, so stopping wasn't the issue. ![]() Never seen anything quite like that on this side of the state. Trucks may have been empty? a lot of steel went towards Detroit back then with little if anything on the back haul. A lot of the 11 axles back then were steel haulers. I remember the city workers over there on strike a few times, it didn't take much of storm to shut things down. Wasn't enough white-collar's to replace striking blue-collars ![]() you happened upon a strike though... A lot of steel left Middletown Ohio on train cars, and loads of train cars full of cars passed Middletown for the Southern States. -- You can't have a sense of humor, if you have no sense. |
#11
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On Tuesday, April 10, 2012 9:02:04 PM UTC-4, Ignoramus21956 wrote:
I have a Ford LNT9000 Semi tractor. I uploaded some pictures he http://igor.chudov.com/tmp/Ford-LNT9000/ The nameplate is pictured he http://igor.chudov.com/tmp/Ford-LNT9...T9000-0007.jpg Its name plate on the door says, GVWR 44,800 lbs. What exactly does it mean? Someone told me that this means that the total weight of truck plus trailer (combined) cannot exceed 44,800 lbs. This makes no sense to me, as GVWR is not the same as GCWR, and if they wanted to put GCWR on the truck, they would say so. So... How big of a trailer can this truck tow? Sorry for being so confused, guys, I would hate to realize that I cannot tow a trailer that would be as big as I would hope to be able to. The trailer I have is the low boy behind the truck, you can see it on pictures. My own reasoning is that GVWR is the max loaded weight of the front and back axles of the truck, and it does not include the weight of the rear axles of the semi trailer. So the GCWR capacity is limited by 44,800 plus 34,000 for the rear axles of the semi trailer, or 78,800 lbs GCWR. Who is right? Please, help! |
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