Randy,
The tire pressure should be set based on the weight of the coach. A four corner weight is preferable but axle weight will work if that is what you have.
Normally the min and max is a percentage of the recommended based on weight. I have seen others set the min and max at between 5 and 10 percent of the recommended.
__________________
Dave
US Army (Ret)
2020 Entegra Accolade 37TS
2019 Jeep Grand Cherokee Trailhawk (Toad)
FMCA - F432054
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