flotation tyres

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gEnEralinformationHYDRO-INFLATIONHydro-inflation Procedure for FluidBallast1- After the beads have been fully seated un the mountingprocedure, inflate the tyre to 35 psi. Jack up the wheeland rotate the wheel assembly so that the valve is at topof the rim. Lower the jack until the tyre is slightly deflected.2- Connect the assembly to fill the tyre with fluid as shownin the illustration bellow.by placing the pump in neutral or check position. If thepressure exceeds 20 psi, move the handle to the evacuateposition until the pressure is bled back to not lessthan 5 psi. After the pressure is lowered, continue toadd fluid. repeat the above steps as often asnecessary.Industry practice is to maintain the fluid level at 75%.(Fluid fill should be maintained at a level sufficient to coverthe valve and keep the rim completely sugmerged.)Tyre being filled with hydro-inflation equipment:Air cushionchamberAir escape, liquidrises to this levelLiquid coming inA90% fill75% fillIn warm climates where calciumchloride may not be desired, tyrescan be filled with water only. Apump is not necessary when onlywater fill is used. Tyres may be filleddirectly by using a valve adapteron a hose.3 - After the connection (in step 2) is made, bleed the airpressure down to about 5 psi by moving the controlhandle (part ”C”) to the evacuate position. Five psikeeps the beads seated on the rim.4 - When this point is reached, start the pump and movethe control handle to the fill position. Use a hydro-inflationpump to fill the tyre with calcium chloride or nondamaginganti-freeze solution (consult tube or tyremanufacturer for recommandations). Check the pressurein the tyre every few minutes with the pump gauge76Vent tube hoseDBCSupply hoseAttach adapter and unit assemblypart “A” to valve stem. Donot use pliers. Also attach supplyhose part “B”. Part “C” isused to remove core housing.5 - Replace the core housing in the valve stem by pushingthe handle in until the housing is screwed tightly into thevalve stem. Then withdraw the handle. Turn the handleto evacuate and pump all liquid from the hose. Next,shut off the pump and unscrew the assembly from thevalve.6 - Inflate the tyre to seat the beads, not exceeding 35 psi.With the valve stem still at the top, bleed the excess filldown to one to two psi above the recommanded inflationpressure.7 - Finnally, rotate the tyre and wheel assembly so that thevalve is at the bottom of the tyre. Set the final operatingpressure with the tyre mounted on the tractor and its fullweight on the tyre.TO REMOVE FILL:1 - Jack up the tractor until the tyre is slightly deflected.Rotate the tyre and wheel assembly until the valve is atthe bottom.2 - Connect the assembly to the valve stem. Unscrew andretract the core housing (part “C”) into injector bodywith the control handle in the check or neutral position.Attach the adapter (part “B) to the valve. Remove thecore housing and connect the supply hose to the adapter“B”.3 - Start the pump and turn the control handle to the evacuateposition. The fluid will be rapidly withdrawn fromthe tyre. Gravity flow may also be used to remove thefluid.When removing fluid from tubeless tyres, be careful not tounseat beads until most of fluid has been pumped from thetyre. Consult your tyre supplier for information on hydroinflationequipment such as pumps, compressors, airwaterconversion hardware parts, etc. Tyre rotated so valveis at bottom with hydro-inflation fluid being removed.
general informationHYDRO-INFLATIONRadial and crossply agricultural tyresRim(inches)Tyre volume75%(dm3)TOTAL(dm3)75% valve level fillSolution 0.42 kg (CaCl2) / l(Water)Water(Litres)Ca cl2(kg)Total(kg)6.50-20 5 32 42 27 11 397.50-20 5.5 44 58 37 16 539.5-20 8 57 76 49 21 709.5-24 8 65 86 55 23 7911.2-24 10 91 121 78 33 11112.4-24 11 113 151 97 41 13913.6-24 12 144 192 124 52 17614.9-24 13 178 237 153 65 21816.9-24 15 231 308 199 84 28314.9-26 13 188 251 162 69 23016.9-26 15 246 328 212 90 30118.4-26 16 299 399 257 109 36623.1-26 20 485 646 417 176 59328L 26 25 594 792 511 216 7279.5-28 8 72 96 62 26 8811.2-28 10 102 136 88 37 12512.4-28 11 133 177 114 48 16213.6-28 12 163 217 140 59 19914.9-28 13 201 268 173 73 24616.9-28 15 261 348 224 95 31914.9-30 13 216 288 186 79 26416.9-30 15 276 368 237 100 33818.4-30 16 337 449 290 123 41223.1-30 20 579 772 498 211 70924.5-32 21 644 858 553 234 78816.9-34 15 308 411 265 112 37718.4-34 16 362 482 311 132 44212.4-36 11 167 222 143 61 20413.6-36 12 205 273 176 75 25113.6-38 12 216 288 186 79 26415.5-38 14 250 333 215 91 30616.9-38 15 341 454 293 124 41718.4-38 16 386 515 332 141 47320.8-38 18 530 707 456 193 64918.4-42 16 435 580 374 158 53220.8-42 18 560 747 482 204 68614.9-46 13 303 404 261 110 37118.4-46 16 488 651 420 178 59812.4-54 10 200 267 172 73 245280/70R20 9 51 68 44 19 63300/70R20 9 65 86 55 23 79320/70R20 10 81 108 70 29 99360/70R20 11 113 151 97 41 139400/70R20 13 131 175 113 48 161250/85R24 8 65 86 55 23 79280/85R24 10 91 121 78 33 111320/70R24 10 95 127 82 35 117320/85R24 11 113 151 97 41 139340/85R24 12 144 192 124 52 176360/70R24 11 122 162 104 44 149380/70R24 12 146 194 125 53 178380/85R24 13 178 237 153 65 218400/80R24 13 200 267 172 73 245420/70R24 13 185 246 159 67 226420/85R24 15 231 308 199 84 283440/65R24 14 188 251 162 69 230460/70R24 15 213 284 183 78 261480/70R24 15 247 329 212 90 302Radial and crossply agricultural tyresRim(inches)Tyre volume75%(dm3)TOTAL(dm3)75% valve level fillSolution 0.42 kg (CaCl2) / l(Water)Water(Litres)Ca cl2(kg)Total(kg)480/65R24 15 224 298 192 81 274540/65R24 16 278 371 239 101 341250/85R28 8 72 96 62 26 88280/85R28 10 102 136 88 37 125320/85R28 11 133 177 114 48 162340/85R28 12 163 217 140 59 199360/70R28 11 136 181 117 49 166380/70R28 12 163 217 140 59 199380/85R28 13 201 268 173 73 246420/70R28 13 206 274 177 75 252420/85R28 15 261 348 224 95 319440/65R28 14 206 275 177 75 252440/80-28 14 272 363 234 99 333480/70R28 15 275 367 237 100 337480/65R28 15 248 330 213 90 303540/65R28 16 311 414 267 113 380600/65R28 18 405 540 348 147 496420/85R30 15 276 368 237 100 338480/70R30 15 290 386 249 105 354540/65R30 16 338 451 291 123 414600/70R30 20 450 600 387 164 551650/75R32 21 596 795 513 217 730800/65R32 27 848 1131 729 309 1038290/95R34 10 125 167 108 46 153320/85R34 10 133 177 114 48 162385/85R34 13 239 318 205 87 292420/85R34 15 308 411 265 112 377460/85R34 16 362 482 311 132 442480/70R34 15 307 409 264 112 375520/70R34 16 361 481 310 131 442540/65R34 16 382 509 328 139 467600/65R34 18 469 625 403 171 574710/75R34 23 875 1166 752 318 1070320/85R38 10 144 192 124 52 176420/85R38 15 341 454 293 124 417460/85R38 16 386 515 332 141 473480/70R38 15 335 446 288 122 409520/70R38 16 393 524 338 143 481520/85R38 16 530 707 456 193 649540/65R38 16 391 521 336 142 478580/70R38 18 578 770 497 210 707600/65R38 18 518 691 446 189 634650/65R38 20 631 841 542 230 772710/70R38 23 800 1067 688 291 980800/70R38 25 1079 1438 928 393 1320850/85R38 23 879 1172 756 321 1077320/90R42 10 166 221 143 60 203650/65R42 20 677 903 582 247 829620/70R42 20 613 817 527 223 750710/70R42 23 832 1109 715 303 1018900/50R42 27 875 1166 752 318 1070320/90R46 10 189 252 163 69 231380/90R46 12 284 379 244 103 348520/85R46 16 568 757 488 207 695230/95R48 8 95 126 81 34 116320/90R50 10 189 252 163 69 231320/90R54 10 200 267 172 73 24577
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2009www.firestone.euTECHNICAL DATAA
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ALL AGRICULTURALTYRES LISTED BY SIZ
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AGRICULTURALTYRESRadial Drive Tyres
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RADIAL TYRESMAXI TRACTIONThe Firest
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RADIAL TYRESRadial All Traction Dee
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adial tyresRadial Flotation 23° DT
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Load andinflation tables16440/65 R2
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Page 52 and 53: load andinflation tablesFLOTATION T
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Page 60 and 61: load andinflation tablesLIGHT INDUS
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Page 70 and 71: load andinflation tablesFORESTRY SP
Page 72 and 73: gEnEralinformationWARNING& SAFETY P
Page 74 and 75: MOUNTING, INFLATING AND DISMOUNTING
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