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01-02-2014, 11:53 AM
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#1
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Senior Member
Join Date: Aug 2013
Location: ARKANSAS
Posts: 382
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315 80 r 22.5
Tire pressure shows to be 130 cold what do you run your pressure at?? 130 is a little rough for me
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01-02-2014, 11:57 AM
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#2
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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What does the inflation chart call for with your weights?
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Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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01-02-2014, 12:02 PM
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#3
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Senior Member
Join Date: Aug 2013
Location: ARKANSAS
Posts: 382
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130 psi at appx 9000 single
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01-02-2014, 12:09 PM
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#4
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Your front axle carries 18,000#'s? I know Newmars are heavy but, have you weighed the rig to know for sure what pressure is required?
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2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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01-02-2014, 12:23 PM
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#5
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Senior Member
Join Date: Aug 2013
Location: ARKANSAS
Posts: 382
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Quote:
Originally Posted by Mr_D
Your front axle carries 18,000#'s? I know Newmars are heavy but, have you weighed the rig to know for sure what pressure is required?
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No not on scales out the door at newmar 40000 plus at the crap u carry I am guessing 42500 fuel water and load
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01-02-2014, 01:48 PM
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#6
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Administrator in Memoriam
Newmar Owners Club Retired Fire Service RVer's Spartan Chassis
Join Date: May 2000
Location: Newark, DE
Posts: 25,898
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Without individual wheel weights we would all be guessing.
It's essential to weigh each wheel to be able to determine tire pressures from the charts.
Until the weights are known, then keeping the high inflation pressure is prudent to prevent overheating/damaging a tire.
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Adios, Dirk - '84 Real Lite Truck Camper, '86 Wilderness Cimarron TT, previously 4 years as a fulltimer in a '07 DSDP
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01-02-2014, 08:12 PM
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#7
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Senior Member
Fleetwood Owners Club
Join Date: Dec 2011
Location: Willow Lakes RV & Golf Resort, FL
Posts: 3,163
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I agree error on the high side. Most "blow outs" are due to under inflation.
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Clay & Pebble
2012 Providence 42 M. Spartan Chassis, 450 ISL
Ford Edge toad, RM All Terrane, TST TPMS, SMI Air Force One, RVM95.... 
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01-03-2014, 04:24 PM
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#8
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Senior Member
Newmar Owners Club
Join Date: Jun 2013
Location: MidWest
Posts: 1,062
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Greg,
The data sheet on our 2011 is 120 PSI on drive wheels and 85 PSI on drive and tag axel works well for us.
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Ken & Anita[FONT=Lucida Console] 2011 Newmar Essex,4522,Cummins 500 ISM,2013 CRV,RVI2 Brake with TPMS
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