New rig, tire shread

[432bartman]

First of all, glad you guys are ok, and second that the tire did not shred the fender/sliding of your trailer. Glad you're going with the Sailuns, and get a tire monitoring system. We have the TST system and it works perfect.

[Ram Montana High Country]

Originally Posted by 214skier

I just inspected the tire in daylight. There is NO screw or nail in the tread. The tires are brand new (as the rig is too). This is our first trip.

Not sure from the looks of tire that the failure point evidence would still be there - IMHO - Good Luck on finding answers. Ditto going to 85 vs 80 size Sailun mentioned above.

[214skier]

Thank you for all the great advice here--we will take all of it.

Yes, I plan to do all the work / investigation to the trailer and its issues independent of the dealer / Keystone. I will not loose camping time to have the rig sit. We already spent an additional day at the dealer (they are located 5 hours from our home) and they could not determine the issue.

Yes, a friend of mine is a forensic engineer who specializes in tire issues. So, yes, I will be strongly supported in my discussions with the dealer / manufacturer.

Having said that, my view is no different than if the refrigerator fails--the tires are failing and should receive some compensation or replacement value for that fail. Not sure why tires delaminating after less than 600 miles of usage would be treated different than a piece of molding that might all off.

[dieselguy]

I'm not wanting to start a side discussion on people's ideas of jacking points as most will not be swayed in their beliefs .... but .... had you placed your F350 truck jack under the axle in-between the spring UBolts instead of trying to jack the entire side of your fiver up ... it would have got the job done without waiting however long for roadside assistance. There are a good number of us that have changed tires this way over our years of RVing without issue. I've proved years ago with a load cell that at that point on the axle you are lifting considerably less than 3000#. Yeah, I know the manufacturer says NEVER lift a trailer by the axle, but many of us understand why that is a CYA blanket statement by a manufacturer as some unknowing people will try and place the jack right in the center of the axle tube and try and lift everything up which I will agree will most likely ruin an axle tube.

[214skier]

Originally Posted by dieselguy

I'm not wanting to start a side discussion on people's ideas of jacking points as most will not be swayed in their beliefs .... but .... had you placed your F350 truck jack under the axle in-between the spring UBolts instead of trying to jack the entire side of your fiver up ... it would have got the job done without waiting however long for roadside assistance. There are a good number of us that have changed tires this way over our years of RVing without issue. I've proved years ago with a load cell that at that point on the axle you are lifting considerably less than 3000#. Yeah, I know the manufacturer says NEVER lift a trailer by the axle, but many of us understand why that is a CYA blanket statement by a manufacturer as some unknowing people will try and place the jack right in the center of the axle tube and try and lift everything up which I will agree will most likely ruin an axle tube.

This is actually a good comment given our experience. We naively assumed the electric jack system would operate like our former hydraulic system (I had a flat once and was able to easily lift and change with no issues); however, getting to manual and isolating the rear or starboard jacks simultaneously was not obvious at the time (I understand this statement is going to open up a whole flurry of comments).

The F350 jack would not lift at the frame--I was hesitant to lift from the axle.

The roadside assistance team hand a 12 ton bottle jack that they did lift from the axle and changed the tire.

[dieselguy]

My way isn't the only way by any means, but as I stated earlier ... several years ago some of us were cussing and discussing methods of changing a tire on the MOC. I had access to a load cell that I put in-between the axle and my jack and lifted a tire up about 1" which creates ample room to change a tire. The load cell reading was somewhere around #2600 ... your trailer is a bit heavier, so yours would probably read a couple hundred more. Trying to lift the fiver up by the frame is probably pushing a #5000+ lift plus all the creaks and groans the fiver makes during that process. I agree ... the Level Up hydraulic systems and maybe the Ground Control electric systems if you can figure out how ... are surely handy. For the future ... if your truck jack won't lift @3000# ... I guess it isn't the one that should have come with your truck.

PS I carry a 4 ton bottle jack (just because that is what I already had) and it raises my fivers wheel up with minimal effort placed in-between the spring Ubolts.

[214skier]

Originally Posted by dieselguy

My way isn't the only way by any means, but as I stated earlier ... several years ago some of us were cussing and discussing methods of changing a tire on the MOC. I had access to a load cell that I put in-between the axle and my jack and lifted a tire up about 1" which creates ample room to change a tire. The load cell reading was somewhere around #2600 ... your trailer is a bit heavier, so yours would probably read a couple hundred more. Trying to lift the fiver up by the frame is probably pushing a #5000+ lift plus all the creaks and groans the fiver makes during that process. I agree ... the Level Up hydraulic systems and maybe the Ground Control electric systems if you can figure out how ... are surely handy. For the future ... if your truck jack won't lift @3000# ... I guess it isn't the one that should have come with your truck.

PS I carry a 4 ton bottle jack (just because that is what I already had) and it raises my fivers wheel up with minimal effort placed in-between the spring Ubolts.

The OEM F350 jack is a 4,000# rating--clearly not enough lifting from frame, but would have worked @ axle. In any case the 5er has a 12 ton jack on board now in addition to ground control 3.0.

[dieselguy]

Sounds like you are well set for any future roadside dilemmas. The foremost reason I was putting numbers out earlier is that some trailer owners don't think things thru and have in their mind if you have a #13000 fiver, when you jack to change a tire ... you're lifting #13000. They fail to reason that there is weight sitting on the other 3 (5 on a triple axle) tires as well as what pin weight your truck is absorbing.

[PSFORD99]

Originally Posted by dieselguy

Sounds like you are well set for any future roadside dilemmas. The foremost reason I was putting numbers out earlier is that some trailer owners don't think things thru and have in their mind if you have a #13000 fiver, when you jack to change a tire ... you're lifting #13000. They fail to reason that there is weight sitting on the other 3 (5 on a triple axle) tires as well as what pin weight your truck is absorbing.

First thing I did was check to see if my truck jack would lift a tire to change, as you said I always use the U-bolt to jack a tire up. Second thing I did was put a 12 ton bottle jack in the basement of the fifth wheel, a bit more convenient if needed .

What I am most curious about , and I may have missed it, but what brand of tire did the OP have, and was it a new Montana fifth wheel. The tire sure didn't look like a G rated steel belted tire . I was under the impression thats what came on the new ones G rated ??

On edit, I do see its new Montana

[Carl n Susan]

Originally Posted by PSFORD99

What I am most curious about , and I may have missed it, but what brand of tire did the OP have, and was it a new Montana fifth wheel. The tire sure didn't look like a G rated steel belted tire . I was under the impression thats what came on the new ones G rated ??

On edit, I do see its new Montana

IT appears to be a new Montana High Country which comes with Trailer King tires, not Sailuns

[PSFORD99]

Originally Posted by Carl n Susan

IT appears to be a new Montana High Country which comes with Trailer King tires, not Sailuns

Thanks. I have to assume they are just the E rated tires then ??

[masterdrago]

Everyone on these forums recommends using a TPMS. I got the non-flowthru version when we got our 5r in Oct of 2017. I wouldn't leave home without them. In cold weather, the low pressure alarm might need adjusting. A good kit can be found at https://tsttruck.com/507-series-4-fl...-507-ft-4.html and make sure to get metal valve stems installed.

[PSFORD99]

Originally Posted by masterdrago

Everyone on these forums recommends using a TPMS. I got the non-flowthru version when we got our 5r in Oct of 2017. I wouldn't leave home without them. In cold weather, the low pressure alarm might need adjusting. A good kit can be found at https://tsttruck.com/507-series-4-fl...-507-ft-4.html and make sure to get metal valve stems installed.

Same here ,took ONE tire issue to make a believer out of me.

[sourdough]

Originally Posted by Carl n Susan

IT appears to be a new Montana High Country which comes with Trailer King tires, not Sailuns

Ours came with Ranier LRF tires. They said they were an "improvement" over TKs and the like. Some folks even said they had good luck with them but they came off and the Sailuns (LRG) went on before it came off the lot.

[PSFORD99]

Originally Posted by sourdough

Ours came with Ranier LRF tires. They said they were an "improvement" over TKs and the like. Some folks even said they had good luck with them but they came off and the Sailuns (LRG) went on before it came off the lot.

Same here ,but I did go 400 miles with my fingers crossed

[214skier]

Originally Posted by PSFORD99

First thing I did was check to see if my truck jack would lift a tire to change, as you said I always use the U-bolt to jack a tire up. Second thing I did was put a 12 ton bottle jack in the basement of the fifth wheel, a bit more convenient if needed .

What I am most curious about , and I may have missed it, but what brand of tire did the OP have, and was it a new Montana fifth wheel. The tire sure didn't look like a G rated steel belted tire . I was under the impression thats what came on the new ones G rated ??

On edit, I do see its new Montana

The 2020 Montana HC came with Rainier ST type F.

We replaced them with Geostar Type G, 14 ply. the Salinus were not available at the Les Schwab we went to; however, the insisted the Geostar were comparable.

[214skier]

Originally Posted by masterdrago

Everyone on these forums recommends using a TPMS. I got the non-flowthru version when we got our 5r in Oct of 2017. I wouldn't leave home without them. In cold weather, the low pressure alarm might need adjusting. A good kit can be found at https://tsttruck.com/507-series-4-fl...-507-ft-4.html and make sure to get metal valve stems installed.

I am having the Ford OEM TMPS and back up camera installed.

[214skier]

Originally Posted by sourdough

Ours came with Ranier LRF tires. They said they were an "improvement" over TKs and the like. Some folks even said they had good luck with them but they came off and the Sailuns (LRG) went on before it came off the lot.

Our originals were Rainier ST's and they were extremely spongy.

[214skier]

Originally Posted by PSFORD99

Thanks. I have to assume they are just the E rated tires then ??

F rated

[Carl n Susan]

Originally Posted by sourdough

Ours came with Ranier LRF tires. They said they were an "improvement" over TKs and the like. Some folks even said they had good luck with them but they came off and the Sailuns (LRG) went on before it came off the lot.

Obviously Montana is installing whatever they have on hand at the moment. The two new MHC's I looked at yesterday on the dealers lot had the Trailer Kings. Maybe it depends on what day it is.