Table 2-2. Operator/Crew Preventive Maintenance Checks and Services (Contd). ITEM NO. INTERVAL ITEM TO CHECK/ SERVICE PROCEDURE NOT FULLY MISSION CAPABLE IF: TM 9-2320-386-10 2-29 18 After Air Operation cleaner (Contd) WARNING • If NBC exposure is suspect- ed, all air filter media should be handled by personnel wearing protective equip- ment. Consult your unit NBC officer or NBC NCO for appropriate handling and disposal instructions. • NBC contaminated filters must be handled using ade- quate precautions (FM 21-40) and must be disposed of by trained personnel. CAUTION Do not service the air cleaner with the engine running, since this will allow dirt to enter the engine and may cause abnor- mal wear. a. Check air cleaner (8) and pre- a. Element or pre- cleaner (7) for clogging and accumula- cleaner is clogged tion of dust and debris. and cannot be cleared. b. Service air cleaner (8), if needed (para. 3-8). 7 8