Ford 750 2009 Owner's Manual page 214

Maintenance and Specifications
WARNING: An inflated tire and rim can be very dangerous if
improperly used, serviced or maintained. To avoid serious injury,
never attempt to re-inflate a tire which has been run flat or seriously
under-inflated without first removing the tire from the wheel assembly
for inspection. Do not attempt to add air to tires or replace tires or
wheels without first taking precautions to protect persons and
property.
214
2009 F-650/750 (f67)
Supplement
USA (fus)