ncladfw3
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The placard on the side is weathered and I can't read the psi. It's not in the manual either. Anyone know the correct psi for coleman 264RL? I read I shouldn't go by what is on the tire. Tires are currently at 40psi which seems low.
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cliffy49
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I would think that you have duel 3500 lb. axles on your trailer. That being said I would hope that you have at least 20575/15 C load range tires on the unit. I had that size tire when I purchased my Trail Blazer and Coachmen called for the tires to be inflated to 50 psi. My Trail Blazer had a GVWR of 7900 lbs. which is just a little more than your Coleman.
I would try to find a tire mfg. pressure guide and go from there. It would alshelp to have the rig weighed in order to cut down on the confusion.
cliffy49
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MFL
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Most RV trailers come with OEM tires that are just barely adequate to cover the axle ratings when inflated to sidewall pressure indicated.
Unless someone replaced the originals, with a way over rated tire, use the likely 65 psi max. You should have stated the tire size, load rating, and tire max pressure, for best answers.
Even a C-load range tire would be 50 psi, so yes 40 psi is likely low.
Jerry
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Grit dog
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Take whatever it weighs (gvw if you don’t know actual) divide it by 4, look up the pressure for that weight on a chart.
Or go max pressure for the tires on it assuming they’re the proper ones for the trailer, if you’re not willing to look it up.
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opnspaces
San Diego Ca
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Go with the max cold tire pressure that's on the tire.
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jadatis
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Then you should start from the basic data.
That is GAWR's and GVWR.but better is to weigh fully loaded(also the persons), per axle, better even per axle-end.
Then I can make a customised pressure/loadcapacity list for your tires, with build in reserves and per axle single or dual or per tire given,so you dont need to do precalculations before looking back in officiall lists.
The recomended pressure you cant read now, is calculated for GAWR with no reserve.
Need from tires next.
1. maximum load or LOADINDEX.
2. kind of tire to determine the maxloadpressure, but if AT xxx psi is given on sidewall, thats what I need. Loadrange is a system to give AT pressure.
3, speedcode, less important.
4. If ST
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QCMan
Independent Republic of Horry
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There is no reason to follow what is on the tire. The internet has all you need to have. I can't understand why people even read or are concerned about the manufacturers instructions when there are so many experts out there that know better. Today's reality. Scary!
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ncladfw3
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Thanks for the replies. I got some more information off the tires:
- ST205/75/R15
- LH-001 (Maybe a Model# ?)
- 8PR 107/102L Load Range D
- Max Load Dual 850kg (1870lbs) at 450KPa (65PSI) COLD
It is a dual axle travel trailer, 6150lbs dry weight.
I'll probably try 65psi.
* This post was
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edited 05/03/23 06:29am by ncladfw3 *
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MFL
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That size trailer, size tires, they will absolutely run coolest, trailer handle best at 65 psi.
With the scrub/flex of ST special trailer tires, especially on tandem axles, the sidewalls get their strength from air pressure, to keep sway at a minimum.
I'm sure your placard, if visible, would indicate 65 psi.
Jerry
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jadatis
Holland
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ncladfw3 wrote:Thanks for the replies. I got some more information off the tires:
- ST205/75/R15
- LH-001 (Maybe a Model# ?)
- 8PR 107/102L Load Range D
- Max Load Dual 850kg (1870lbs) at 450KPa (65PSI) COLD
It is a dual axle travel trailer, 6150lbs dry weight.
I'll probably try 65psi.
Do you mean by dual axle, 1 axle with 4 tire on it(verry unusuall, but they exist) , or tandem axle so 2 axles with each 2 tires on them.
And can you still read the GVWR and GAWR('s)
( Gross Axle/Vehicle Weight Rating)
* This post was
edited 05/03/23 07:22am by jadatis *
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