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Tire Pressure; was Digest Number 1508

Yahoo Message Number: 15803
From: smokey95@...>

(snip) > Tires....everyone I ask has a different answer. So, I put 120 psi in the two

Quote
front tires and 110 psi in the each of the four rear. My smart tire is > working

fine. What do you think?
Until you have a chance to do a four-corner weigh, use the pressures on the label that's in the coach. Once you do a four-corner weigh on a fully loaded (with people and stuff) coach, consult a tire pressure/load chart to determine the proper pressure for the load that's actually on the tires.
Make sure that all tires on each axle are inflated equally (reflecting which corner has the higher weight) ... and ensure that you get proper pressure specs from the "single" or "dual" application sections of the chart.
Inflating to a higher pressure than necessary will result in a harder ride, decrease traction and make the tires more susceptible to impact damage.
Lower than necessary will cause a buildup of heat and probable catastrophic failure.

Note: The wheels are rated for maximum pressure (stamped on each wheel), so don't exceed that rating.

Dick (& Geri) Campagna (in Key West) '98 36' Intrigue #10571
Mfd: 11/97

Re: Tire Pressure; was Re: [Country-Coach-Owners] Digest Number 1508

Reply #1 –
Yahoo Message Number: 15811
Well said, Dick. I continue to maintain, even after hearing Jon from Schwab expound on using placarded pressures at Moultrie, that this is lawyer talk. He even said the tire mfgs are revising their pressure charts, while at the same time saying we must use placarded pressures.
I have smarttire on all but the tag tires and can keep an eye on pressure and temperature. When I asked Jon what else is there to cause internal damage except temperature and under-inflation I didn't get an answer.
I hope I don't have to get on this board and eat crow at some future time, but for now I intend to keep my comfortable ride by keeping my tire pressures at one interval higher than called for by the Toro chart issued with my coach by CC.

Walt Rothermel

03Allure30811 ( carrying 85psi frt and 75psi duals and tag.)

Tire Pressure; was Re: [Country-Coach-Owners] Digest Number 1508

Reply #2 –
Yahoo Message Number: 15815
Hi Walt

Me too. I run 85# all around (no tag on mine) which is just about what the Toyo manual calls for for my weight. (per formerly A-Weigh- we-go) + 5 Lbs. Have had no trouble in over 3 Yrs and 45,000 miles.
Includes cold roads in Maine to hot roads in CA.

Andy Ring 02 36' Allure 00 Subaru Forester

Re: Tire Pressure; was Re: [Country-Coach-Owners] Digest Number 1508

Reply #3 –
Yahoo Message Number: 15825
Dick,

You're a retired safety manager. What is the safety margin on the rear if you run the duals at 75-85 psi, and you blow one of the duals?
Per

--- Dick Campagna campagna@...> wrote:

From: smokey95@...>

(snip) > Tires....everyone I ask has a different answer. So, I put 120 psi
in the two

Quote
front tires and 110 psi in the each of the four
rear. My smart tire is

Quote
working

fine. What do you think?
Until you have a chance to do a four-corner weigh, use the pressures on the

label that's in the coach. Once you do a four-corner weigh on a fully

loaded (with people and stuff) coach, consult a tire pressure/load chart to

determine the proper pressure for the load that's actually on the tires.

Make sure that all tires on each axle are inflated equally (reflecting which

corner has the higher weight) ... and ensure that you get proper pressure

specs from the "single" or "dual" application sections of the chart.

Inflating to a higher pressure than necessary will result in a harder ride,

decrease traction and make the tires more susceptible to impact damage.

Lower than necessary will cause a buildup of heat and probable catastrophic
failure.

Note: The wheels are rated for maximum pressure (stamped on each wheel), so
don't exceed that rating.

Dick (& Geri) Campagna (in Key West) '98 36' Intrigue #10571
Mfd: 11/97

To visit your group on the web, go to:
">Country-Coach-Owners-unsubscribe@yahoogroups.com

iv>

Re: Tire Pressure; was Re: [Country-Coach-Owners] Digest Number 1508

Reply #4 –
Yahoo Message Number: 15843
From: "Per Korslund" peralko@...>
(snip) > Dick,

Quote
You're a retired safety manager. What is the safety > margin on the rear if you run the duals at 75-85 psi, > and you blow one of the duals?
I'm a retired safety manager, but I'm not a retired tire engineer!
Regardless, I strongly suspect that 75-85psi in a pusher's duals is way low for normal operation, and way ... WAY ... low in case of a blowout scenario.
I suspect that 95-100psi would be more appropriate, depending on the load, of course.

RVSEF (formerly A'weigh We Go) weighing our loaded coach resulted in 100psi in our duals, by the way. And I've "adjusted" it upwards to 105psi to give a 5psi safety margin, just in case I don't catch a pressure drop with my IR thermometer (used every time we stop).

Dick (& Geri) Campagna (in Key West) '98 36' Intrigue #10571
Mfd: 11/97