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thief_river_dutchstarOP
Shore PowerThief River Falls, MNPosts 9 · Joined Sep 2025
new to pushers, came up from a 36 foot fifth wheel. the Dutch Star came to me with 110 in every tire, fronts, drives and tag. between here and Grand Forks it hops on every expansion joint and the steering feels busy the whole way. a guy at the fuel island told me to drop the pressure, another one said never go under the sidewall number.
tires are Michelin XZA3+ 295/80R22.5, fronts are date coded 3719. do people really pull a 43 foot coach across a truck scale? and where do you find one that weighs each axle separately?
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spartan_chassis_hank
Road CaptainElkhart, INPosts 88 · Joined Sep 2025
yes weigh it, and yes 110 all the way around is too much on most of these. that's the number the delivery lot puts in so nobody can ever say it was low.
a CAT scale gives you front, drive and tag as three separate numbers, which is plenty to start. go across loaded the way you travel, full fuel, fresh water where you keep it, toad unhooked. then find your tire size in the Michelin load and inflation table, singles for the steer and duals for the drive, read the pressure for your axle weight and add 5 psi of cushion.
better yet is corner weights, because a pusher is almost never even side to side. on a Newmar the residential fridge and the washer usually end up on the same side. the Escapees SmartWeigh people do all four corners at the big rallies.
and while you're crawling around down there, 3719 means those fronts turned six this month. nhtsa.gov has the recall lookup by tire ID, run them once so you know.
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cummins_isl_owner
Toad TowerSan Antonio, TXPosts 37 · Joined Sep 2025
what hank said. my Allegro Bus weighed 14,620 on the steer axle last year and the chart wanted 100 for that. i'd been running 115 because that's what the sticker in the door said. at 105 most of the wander was gone, felt like somebody adjusted the steering box.
look at the steering stabilizer while you're under there too. a 2020 is young for that to be worn out but you don't know how it sat before you got it.
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quartzsite_winters
Toad TowerQuartzsite, AZPosts 44 · Joined Sep 2025
the CAT scale at the truck stop in Ehrenberg is where half of Quartzsite weighs in every January. about 14 bucks and nobody cares how long you are. go early on a weekday so you're not stuck in line behind ten reefers.
my Newell runs 115 up front because it's a heavy nose. so don't copy any of our numbers, that's the whole reason for the scale.
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thief_river_dutchstarOP
Shore PowerThief River Falls, MNPosts 9 · Joined Sep 2025
did it saturday at the truck stop scale off I-29 in Fargo. full fuel, half a tank of fresh water, no toad since i don't have one yet.
steer 15,120. drive 19,580. tag 8,350. 43,050 total. from the Michelin table plus hank's 5 that came out to 100 front, 90 drive and 80 on the tag.
drove to Grand Forks and back sunday and it is a different coach. the hop over the joints is mostly gone and i'm not correcting every second. the fronts go in the spring, the shop here quoted about 1,050 a tire mounted and balanced.
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spartan_chassis_hank
Road CaptainElkhart, INPosts 88 · Joined Sep 2025
good numbers. one more for a northern coach: set the pressures cold, in the morning, before the sun hits that side. every 10 degrees of air temperature is about 2 psi, so the 100 you set on a 70 degree afternoon is 92 or so on a 30 degree morning in Thief River, and you'll be chasing it all fall.
