TM 9-2320-361-10 3-13. AIR CLEANER SERVICE If NBC exposure is suspected, all air filter media should be handled by personnel wearing protective equipment. Consult your unit NBC officer or NBC NCO for appropriate handling or disposal instructions. a. General. Air cleaner service is required whenever the red band is visible in window of air cleaner indicator (1). The operator will service the air cleaner in an emergency situation only. Notify your supervisor as soon as possible. CAUTION Do not operate engine without an air cleaner element. Doing this may result in internal engine component damage. b. Removal. (1) Open hood (refer to para. 2-22). (2) Loosen nut (2) and screw (3) on clamp (4). (3) Remove rain hood (8) from shell (5). 3-18 Change 2 WARNING