TM 9-2320-361-34 15-42. INTERMEDIATE CASE MAINTENANCE (Contd) 13. If checks and measurements obtained in steps 9 through 12 are correct, perform steps 14 through 16. 14. Install bearing retainer (15) on intermediate case (2) with six new lockwashers (14) and screws (13). 15. Install new gasket (19) and inspection plate (16) on boring case (5) with eight new lockwashers (18) and screws (17). 16. Proceed to follow-on tasks. 15-173