Figure 40. Fuel filter service.
Warning: If NBC expose is suspected, all engine air
cleaner air filter media should be handled by personnel
wearing protective equipment. Consult your NBC
Officer or NBC NCO for appropriate handling or disposal
Visually check the air filter restriction indicator, normally
green for correct filter condition (fig. 41). If indicator
flag is red, or element is missing, report it to
Figure 41. Air filter restriction indicator.