Load & Inflation - Table A - Firestone

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load &inflationtable atire type nomenclaturemax. SpeedraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireSSpeed indexSpeed indexa8/bdtratire typebaSic Tire loaD raTingS for Tire SelecTionr-1Drive Wheel, regular Tread30 mph40 mphr-1WDrive Wheel, Wet Traction Tread30 mph40 mphengliSh unitS of meaSurer-2cane & rice, Drive Wheel, Deep Tread25 mph—tire load limitS at variouS cold inflation 012141618 2022 242628 li84899498SingleS 1650DualS 9699TripleS lbs**7.50r18li8591SingleS 1710DualS 500TripleS 4039604080454012.4r46liSingleS lbs125125DualS 035904000TripleS 033503720133137SingleS 045405080DualS 43036103720417012.4r54liTripleS lbs13.6r28122li128117123126SingleS 03740DualS 9803070396041804400TripleS lbs14.9r26liSingleS 32DualS 03870TripleS 0361014.9r28li122128133SingleS 04540DualS 5303720TripleS lbs14.9r30li123129134SingleS 04680DualS 04120TripleS 03840firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionengliSh unitS of meaSuretire load limitS at variouS cold inflation 3420221251930227026002910320034203640242628 liSingleS lbs18131386040804300454046803036 13614049405520DualS 043504860TripleS 040504530142145SingleS 058406400DualS 4.9r46liTripleS lbs15.5r38131li125SingleS lbs1930227026002910320034203640DualS 0280029801980234026803000330035203740TripleS lbs16.9r24liSingleS lbs137126134DualS lbs1740206023602640290031003290359037804120TripleS 02760306034203640396041804400480016.9r26liSingleS lbs128135DualS lbs1800217024302710301032003480368038704220TripleS li129136SingleS lbs2150254029102600325037404080430045404940DualS lbs1890224025602290310032903590378040004350TripleS 03000330036403860418044004680508016.9r30liSingleS lbs130137DualS 050005410TripleS 046605040SingleS lbs2470291033003740408044004680494053605680DualS 38liTripleS lbs18.4r26134li141134140SingleS lbs2470291033003740408044004680494053605520DualS eS lbs18.4r28liSingleS lbs1352540300034203860418045404800141146DualS 05810TripleS 05410firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionengliSh unitS of meaSuretire load limitS at variouS cold inflation 3020221372600308035203960430046805080242628 liSingleS lbs181435360568060003036 147615064006800DualS 05980TripleS 05580SingleS 07150DualS 700586018.4r34liTripleS lbs18.4r38139li144151155SingleS 076008550DualS 700607062307010TripleS lbs18.4r42141149liSingleS 50153740076008050DualS 07080TripleS 050855018.4r46liSingleS lbs144150155DualS 07520TripleS 0701071507600805020.8r34li145SingleS lbs3420396045405080552060006400DualS lbs3010348040004470486052805630TripleS 06400680020.8r38liSingleS lbs147153DualS lbs3200378042204720514056305980629066907080TripleS lbs2980353039404400479052505580586062306600SingleS lbs3740454050805680615068007150760080508550DualS 04170466050405580586062306600701020.8r42liTripleS lbs***23.1r26149li155147153157SingleS 09100DualS 2207460TripleS lbs23.1r34liSingleS lbs1513960468053606000660071507600DualS lbs3480412047205280581062906690TripleS lbs3250384044004920541058606230firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionengliSh unitS of meaSuretire load limitS at variouS cold inflation 322022242628 liSingleS lbs183036 1544300508058406400715076008250DualS lbs3780447051405630629066907260TripleS lbs3530417047905250586062306770SingleS 01280013200DualS 126011620TripleS 001082030.5lr32li159166*7.50r16: 1870 lbs (850 kg) @ 46 psi (320 kpa) / (li 102)**7.50r18: 1980 lbs (900 kg) @ 46 psi (320 kpa) / (li 104)***23.1r26: 11700 lbs (5300 kg) @ 46 psi (320 kpa) / (li 166)noteS:1. boldface denotes maximum load for the Symbol shown and the Service Description (load index Speed Symbol).2. for shipping purposes, tire inflation pressures may be increased to 30 psi ( 210 kpa) (consult tire manufacturefor minimum shipping pressure). This higher inflation pressure must be reduced to operating inflation before themachine is removed from the carrier.3. for transport service above 20 mph (30 km/h), recommended minimum inflation pressure is 8 psi (60 kpa).4. When running lower inflation pressures, it is extremely important to use an accurate air pressure gauge.5. for hillside operations and for moldboard plowing with single drive tires in the furrow, add 4 psi (30 kpa).6. for r-2 tires, above loads apply, however maximum speed is 25 mph (40 km/h).7. for above tires (except r-2) used in cyclic loading field service see load Table f1.8. for above r-2 tires used in cyclic loading service (except hillside combines) without sustained high torque withspeeds up to 5 mph (10 km/h) above loads may be increased 70% (with 6 psi (40 kpa) increase in inflation pressure).This load increase is also applicable to tires used on vehicles with mechanisms capable of maintaining tires andwheels in vertical position on slopes to 11 (20% grade).9. for transport service and operations which do not require sustained high torque, the load limits shown at right atvarious speeds apply with no change in inflation pressure (r-2 maximum speed is 25 mph (40 km/h)).170max. Speed% change in table10 mph (15 km/h) 34% (except hillside combines)15 mph (25 km/h) 11% (except hillside combines)20 mph (30 km/h)7%25 mph (40 km/h)none30 mph (50 km/h)nonefirestoneag.com

load &inflationtable atire type nomenclaturemax. SpeedraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStrabaSic Tire loaD raTingS for Tire SelecTionmetric unitS of meaSurekpa7.50r16Speed indexa8/bdtire typer-1Drive Wheel, regular Tread50 km/h65 km/hr-1WDrive Wheel, Wet Traction Tread50 km/h65 km/hr-2cane & rice, Drive Wheel, Deep Tread40 km/h—tire load limitS at variouS cold inflation preSSureSinflationtireSizeSpeed index210250Symbol40607080100110120 140150 160180190 li84899498SingleS kg265307355387425462500530560580615650670750DualS 2903203503804104304604805005305506209699TripleS kg7.50r18li8591SingleS kg280325375412450487515560580615650670710900DualS S 06012.4r46liSingleS kg125125DualS 1810TripleS 690133137SingleS 602300DualS 1690189012.4r54liTripleS kg13.6r28122liSingleS 6160016501700DualS ripleS .9r26liSingleS kg121127132DualS 0TripleS 14.9r28li122128133SingleS 60DualS ripleS kg14.9r30li123129134SingleS 20DualS 0TripleS 0firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionmetric unitS of meaSuretire load limitS at variouS cold inflation 0 liSingleS kg12013117501850195020602120210250 13614022402500DualS 702200TripleS 02050142145SingleS 26502900DualS r46liTripleS kg15.5r38131li125SingleS kg875103011801320145015501650DualS 350900106012151360150016001700TripleS kg16.9r24liSingleS kg137126134DualS kg79093010701200132014101500163017201870TripleS 0140015501650180019002000218016.9r26liSingleS kg128135DualS kg81099011001230136014501580167017601920TripleS 29136SingleS kg975115013201450160017001850195020602240DualS kg860101011601280141015001630172018101970TripleS 601550165017501900200021202300DualS 2702460TripleS 102300SingleS kg1120132015001700185020002120224024302575DualS iSingleS kg16.9r38130liTripleS kg18.4r26137134li141134140SingleS kg1120132015001700185020002120224024302575DualS 301390152016401740184019902110257527252800TripleS kg18.4r28li13513601550190020602240141146SingleS kg1150DualS 2860TripleS 6702430firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionmetric unitS of meaSuretire load limitS at variouS cold inflation alS 2710TripleS 520SingleS 3250DualS 802670liTripleS kg18.4r382575250 118023002430210 SingleS kg18.4r341400160 139li272528002900144149151155SingleS 34503875DualS 80275028303180TripleS kg18.4r421413075liSingleS 0153335034503650DualS 3210TripleS 50387518.4r46liSingleS kg144150155DualS 3410TripleS 318032503450365037504000412520.8r34li145SingleS kg1550180020602300250027252900DualS kg1360158018102020220024002550TripleS 2900307520.8r38liSingleS kg147153DualS kg1450172019202140233025502710286030403210TripleS kg1350160017901990217023802520267028302990SingleS kg1700206023002575280030753250345036503875DualS 2liTripleS kg23.1r26149liSingleS kg1551471600190021802430265029003075153157DualS 3630TripleS 338023.1r34li151SingleS kg1800212024302725280030753250DualS kg1580187021402400246027102860TripleS kg1480174019902230230025202670firestoneag.com

load &inflationraDial ply Symbol-markeDagriculTural TracTor Drive Wheel TireStable abaSic Tire loaD raTingS for Tire SelecTionmetric unitS of meaSuretire load limitS at variouS cold inflation 4.5r32140150160180190 liSingleS kg120210250 1541950231026502900325034503750DualS kg1720203023302550286030403300TripleS kg1600189021702380267028303080SingleS 6000DualS 5280TripleS 492030.5lr32li159166noteS:1. boldface denotes maximum load for the Symbol shown and the Service Description (load index Speed Symbol).2. for shipping purposes, tire inflation pressures may be increased to 30 psi ( 210 kpa) (consult tire manufacturefor minimum shipping pressure). This higher inflation pressure must be reduced to operating inflation before themachine is removed from the carrier.3. for transport service above 20 mph (30 km/h), recommended minimum inflation pressure is 8 psi (60 kpa).4. When running lower inflation pressures, it is extremely important to use an accurate air pressure gauge.5. for hillside operations and for moldboard plowing with single drive tires in the furrow, add 4 psi (30 kpa).6. for r-2 tires, above loads apply, however maximum speed is 25 mph (40 km/h).7. for above tires (except r-2) used in cyclic loading field service see load Table f1.8. for above r-2 tires used in cyclic loading service (except hillside combines) without sustained high torque withspeeds up to 5 mph (10 km/h) above loads may be increased 70% (with 6 psi (40 kpa) increase in inflationpressure). This load increase is also applicable to tires used on vehicles with mechanisms capable ofmaintaining tires and wheels in vertical position on slopes to 11 (20% grade).9. for transport service and operations which do not require sustained high torque, the load limits shown at right atvarious speeds apply with no change in inflation pressure (r-2 maximum speed is 25 mph (40 km/h)).170max. Speed% change in table10 mph (15 km/h) 34% (except hillside combines)15 mph (25 km/h) 11% (except hillside combines)20 mph (30 km/h)7%25 mph (40 km/h)none30 mph (50 km/h)nonefirestoneag.com

load & inflation load & inflation firestoneag.com tire Size inflation tire load limitS at variouS cold inflation preSSureS psi 6 8 10 12 14 16 18 20 22 24 26 28 30 36 Symbol 18.4r30 li 137 143 147 SingleS lbs 2600 3080 3520 3960 4300 4680 5080 5360 5680 6000 6150 6400 6800 DualS lbs 2290 2710 3100 3490 3780 4120 4470 4720 5000 5280 5410 5630 5980

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