TM 5-3805-260-10 Tire Inflation Information CONDITION MANUFACTURER PLY RATING PRESSURE FIRESTONE 12 35 PSI (2.5 kg/cm2) SHIPPING GENERAL 12 40 PSI (2.8 kg/cm2) FIRESTONE 16 45 PSI (3.2 kg/cm2) GENERAL 16 45 PSI (3.2 kg/cm2) FIRESTONE 12 35 PSI (2.5 kg/cm2) OPERATION GENERAL 12 40 PSI (2.8 kg/cm2) FIRESTONE 16 45 PSI (3.2 kg/cm2) GENERAL 16 45 PSI (3.2 kg/cm2) FIRESTONE 12 35 PSI (2.5 kg/cm2) ROADING GENERAL 12 40 PSI (2.8 kg/cm2) FIRESTONE 16 45 PSI (3.2 kg/cm2) GENERAL 16 45 PSI (3.2 kg/cm2) FIRESTONE 12 20 PSI (1.4 kg/cm2) STORAGE GENERAL 12 15 PSI (1.1 kg/cm2) FIRESTONE 16 25 PSI (1.8 kg/cm2) GENERAL 16 20 PSI (1.4 kg/cm2) Adjusted Inflation Pressures Use this chart when inflating tires indoors at 65ºF (18ºC) if the machine is to be operated at a cooler out-side temperature. Recommended Inflation Adjusted Inflation Pressure For Ambient Operating Temperature of: Pressure 30ºF (-1ºC) 0ºF (-18ºC) -20ºF (-29ºC) -40ºF (-40ºC) psi kPa psi kPa psi kPa psi kPa psi kPa 30 205 33 230 36 250 39 270 41 285 35 240 38 260 42 290 45 310 47 325 40 280 44 3005 48 330 51 350 54 370 45 310 49 340 53 365 57 395 660 4158 50 345 55 380 59 405 62 430 66 460 55 380 60 415 65 450 68 470 72 500 60 415 65 450 71 490 74 510 79 550 65 450 71 490 76 520 80 550 85 590 70 480 76 520 82 570 86 590 91 630 75 520 81 560 88 610 92 630 97 670 80 550 87 600 93 640 98 680 104 720 2-11