Ford 2007 F-650 Owner's Manual page 213

Maintenance and Specifications
Load
Tire size
range
295/75R22.5 G
295/80R22.5 H
Tire inflation information
All tires with Steel Carcass Plies (if equipped):
This type of tire utilizes steel cords in the sidewalls. As such, they
cannot be treated like normal light truck tires. Tire service, including
adjusting the air pressure, must be performed by personnel trained,
supervised and equipped according to Federal Occupational Safety and
Health Administration (OSHA) regulations. For example, during any
procedure involving tire inflation, the technician or individual must
utilize a remote inflation device, and ensure that all persons are clear of
the trajectory area.
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.
212
2007 F-650/750 (f67)
Supplement
USA (fus)
Approved Front - lb.
rim widths
(kg)/psi
(kPa)
12350 (5602) /
8.25, 9.00
110 (758)
14400 (6531) /
8.25
120 (827)
14780 (6704) /
9.00
120 (827)
Axle capacity
Rear - lb.
(kg)/psi
(kPa)
23900 (10841)
/ 100 (690)
27760 (12591)
/ 120 (827)
27760 (12591)
/ 120 (827)