TM10-3930-660-20 5-5. AIR  CLEANER  ASSIMBLY  - REPLACE/REPAIR (Cont’ d) 7. INSTALL ELEMENTS (1) AND (2) TO HOUSING  (3)  . a. b. c. d. Position secondary filter element (2) in housing (3) and secure with wingnut  (7)  . Position primary filter element (1) in housing (3) and secure with wing nut (6) . Position access cover (5) on housing (3) and secure with clamp (4)  . Reset air intake restriction indicator, TM10-3930-660-10. 5-13