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Old 02-27-2011, 11:49 PM   #1
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Tire pressure for 390 XL

I've recently purchased a 2000 390 XL and am loving it. What a fine motorhome! One question. Mine is in compliance with the recall that fitted the larger front tires (Michelin 275/70/22.5). Can anyone tell me the air pressure that we are supposed to use in front with these tires? It seems a new tire info decal was not applied when the larger tires were installed.
Thanks.
Jeff Witwer
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Old 02-28-2011, 12:06 AM   #2
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390XL Tire Pressure

Welcome to to the Forums.

First thing is to get it weighed with a typical load.
Then there are numerous charts to give you the proper pressure for load carried.
You get it weighed and I will look up some charts.
I run 105 on the front and 95 on the rear of my tires on the Clipper. They are 265/75 22.5.
The Clipper is a light unit compared to yours as it has no slide or tile floor etc.
Dave
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Old 02-28-2011, 12:15 AM   #3
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Michelin Tire Info

Lots of good info on this site.

Michelin Americas Truck Tire Load & Inflation Tables
Sorry the chart will not load properly. Click on the above and it will take you there.

275/70R22.5 LRJ XZA2 Energy™, XZE2+, XZU2
PSI859095100105110115120125130Maximum load & pressure on sidewallkPa590620660690720760790830860900LBSSingle 9880103401080011250117001214012580130201346013880S 6940 LBS at 130 PSIDual1942020320212202210022980238602472025580D63 95 LBS at 120 PSIKGSingle448046904900510053105510571059106110630 0S3150 KG at 900 kPaDual8810922096301002010420108201121011600D2900 KG at 830 kPa275/70R22.5 LRJ XTY2PSI7580859095100105110115120Maximum load & pressure on sidewallkPa520550590620660690720760790830LBSSingle 9530100301053011030115101200012470129501342013880S 6940 LBS at 120 PSIDual1756018500194202032021220221002298023860247 2025580D6395 LBS at 120 PSIKGSingle434045404800498052405440562058806060630 0S3150 KG at 830 kPaDual7960836088409200964010000103601080011160116 00D2900 KG at 830 kPa






Quote:
Originally Posted by jwitwer View Post
I've recently purchased a 2000 390 XL and am loving it. What a fine motorhome! One question. Mine is in compliance with the recall that fitted the larger front tires (Michelin 275/70/22.5). Can anyone tell me the air pressure that we are supposed to use in front with these tires? It seems a new tire info decal was not applied when the larger tires were installed.
Quote:
Originally Posted by jwitwer View Post
Thanks.
Jeff Witwer
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Old 02-28-2011, 12:57 AM   #4
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390xl

Another thing to check in this bulletin

AIRSTREAM 390XL Technical Service Bulletin



HOME A AIRSTREAM 390XL year - n/a 622546








NHTSA Item Number:622546 Service Bulletin #:122 Replacement #:Vehicle/Equipment Make:AIRSTREAM Vehicle/Eqipment Model:390XL Model Year:n/a Mfg Component Code:114300 ELECTRICAL SYSTEM:WIRING: REAR COMPARTMENT/TRUNK Date of Bulletin:2001-01-01 Date Added:2001-10-19 Summary:SUBJECT REGARDING 12-VOLT WIRING HARNESS REPAIR. *TT
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Old 02-28-2011, 01:13 AM   #5
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390xl

http://www.airforums.com/forums/f313...-xl-28517.html

Some more info here.
Dave
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Old 03-07-2011, 04:44 PM   #6
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2000 35' Land Yacht XL w/slide
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Just a quick note check the wheel itself, my steel wheels are 115 psi while the tires are rated for 120 psi
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