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08-13-2019, 06:51 AM
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#1
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Junior Member
Newmar Owners Club
Join Date: Jul 2019
Posts: 17
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Weight capacity
What is the danger of over weight capacity on a motor home?
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08-13-2019, 07:07 AM
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#2
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Senior Member
Join Date: Feb 2016
Posts: 646
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The first thing that comes to mind is blown tires. You never want to have any one of your tires carrying more weight than they are designed to at their given inflation pressure.
The second thing that comes to mind is stopping distance. I'm nowhere close to my weight limits and still cannot stop on a dime, even though many other drivers seem to think I can....
I'm sure others will chime in with other issues.
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2022 RAM 3500 Cummins SRW long bed, 2019 Open Range 319 RLS, Reese Goosebox, disk brakes
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08-13-2019, 07:10 AM
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#3
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Senior Member
Join Date: Dec 2013
Location: Lake Havasu City, AZ & Plover, WI
Posts: 6,403
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The most extreme danger and possibility of exceeding the weight limits is Death. The weight limits of a motorhome or any vehicle are based on the weakest component. If steering axle is rated for 12,000#, the weakest link might be the tire capacity. If you load that axle to 13,000# or 500# over on each tire, there is a real possibility of a tire failure which could result in complete loss of control putting the lives of you, your family and others at risk. Exceeding the design limits of anything can lead to an undesired outcome.
edit: Also, if you do not inflate the tires to the correct psi for the load they are carrying, you no longer have the designed capacity. In the case of an underinflated tire in the above scenario, you could be overloaded at less than 12,000# with a tire failure as the result. Never exceed the weakest link.
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2006 Monaco Executive 44 Denali
2013 43 QGP Allegro Bus ( SOLD )
2013 Avalanche
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08-13-2019, 07:12 AM
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#4
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Senior Member
Join Date: Jul 2011
Posts: 1,144
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It's not hard to come up against the weight carrying capacity of a motorhome. The fancier the interior is, the more likely it is carrying extra weight. Things like tile floors, granite countertops, storage spaces filled with tools and rock collections, extra large tanks for fuel and water. These can all increase the weight of a motorhome. Also, if you tow a large trailer, the 10% of the trailer weight you are supposed to carry on the tow bar, can be added to the weight on the MH wheels. It all adds up.
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2004 Tiffin Allegro 27.5 ft. P32 18,000 lb. GVW. 8.1 liter. Workhorse chassis built May 2002. 35,500 miles. 2012 Jeep Liberty Toad. RVi2 brake unit.
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08-13-2019, 09:58 AM
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#5
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Registered User
Join Date: Oct 2016
Posts: 3,026
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Death, injury, premature wear or failure of suspension components, decreased braking performance, reduced fuel efficiency, undesirable or unsafe handling characteristics, liability for knowingly operating an overweight vehicle. I think the last one is called gross negligence.
In addition to the MH there is the toad/trailer and GCVWR to consider.
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08-13-2019, 10:14 AM
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#6
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Right now my rig weighs just under 52,000#'s loaded for a long trip and full water tank. It's GVWR is 54,000#'s. However that's using only 20,000#'s for the drive axle which is legally allowed to be 24,000#'s and axle itself is rated for 26,000#'s. So I'm well under it's capacity even with tile floors, hardwood cabinets etc.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-13-2019, 02:08 PM
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#7
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Registered User
Join Date: Oct 2016
Posts: 3,026
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Quote:
Originally Posted by Mr_D
Right now my rig weighs just under 52,000#'s loaded for a long trip and full water tank. It's GVWR is 54,000#'s. However that's using only 20,000#'s for the drive axle which is legally allowed to be 24,000#'s and axle itself is rated for 26,000#'s. So I'm well under it's capacity even with tile floors, hardwood cabinets etc.
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Well that’s certainly impressive, but it does answer the question.
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08-13-2019, 03:26 PM
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#8
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,794
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Hi ! Welcome to IRV2! We're sure glad you joined the gang! 
Can't add to what others have said, but noticed you are kinda new on IRV2 and wanted to say hello! Have fun and keep her between the ditches!
Good luck, happy trails, and God bless!  
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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08-13-2019, 03:31 PM
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#9
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Registered User
Join Date: Mar 2019
Posts: 1,336
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After the failure of a component due to over loading then the legal aspect kicks in
A local Attorney in Springfield has made millions and is one of the wealthiest people in the city largely winning cases against large semis, busses, and motor home accidents. Mr. Bradshaw is a physician, surgeon and a darn good lawyer. His staff searches all the public data available, forums, Facebook and so on in addition to gathering local data regarding accidents. I don't believe he has lost a case in many years. One of his TV ads states he has won the largest settlement in MO, something like 12 million.
It just isn't smart knowingly to break any kind of transportation related law and especially that has direct links to accidents endangering others as well as your family
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08-13-2019, 05:20 PM
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#10
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Senior Member
Join Date: Aug 2016
Posts: 3,400
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Quote:
Originally Posted by CYNT RIDER
What is the danger of over weight capacity on a motor home?
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The NTSB has stated for many, many years that 60% of ALL RV's running down the road are over loaded and is the #1 cause of accidents.
Curious....why do you ask?
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08-13-2019, 05:28 PM
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#11
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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Quote:
Originally Posted by marjoa
The NTSB has stated for many, many years that 60% of ALL RV's running down the road are over loaded and is the #1 cause of accidents.
Curious....why do you ask?
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Maybe the number one cause of MH accidents, certainly not ALL accidents.
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08-13-2019, 06:24 PM
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#12
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Senior Member
Join Date: Apr 2010
Posts: 661
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Quote:
Originally Posted by Mr_D
Right now my rig weighs just under 52,000#'s loaded for a long trip and full water tank. It's GVWR is 54,000#'s. However that's using only 20,000#'s for the drive axle which is legally allowed to be 24,000#'s and axle itself is rated for 26,000#'s. So I'm well under it's capacity even with tile floors, hardwood cabinets etc.
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Most of us with tag axles are well under the maximum weight. However, we pay for 2 extra tires every so often as well as some extra maintenance associated with the extra axle so it's not a free ride.
It is nice to travel with a full water tank though, so one can pick and choose where to refill (think hard water), not worry about water between campgrounds, and not worry about a campground with a broken water system.
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08-13-2019, 07:06 PM
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#13
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Registered User
Join Date: Oct 2016
Posts: 3,026
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Quote:
Originally Posted by tfryman
Maybe the number one cause of MH accidents, certainly not ALL accidents.
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Try reading the statement again.
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08-13-2019, 07:08 PM
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#14
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Registered User
Join Date: Oct 2016
Posts: 3,026
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Point of clarification, post #7 should have read: ..., but it doesn’t answer the question.
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