TM10-3930-660-20 16-3. ENGINE  COVERS   -  REPLACE  (Cont’d) 2. 3. REMOVE FRONT ENGINE COVER (l), AND REAR ENGINE COVER (2) FROM VEHICLE FRAME. IF NECESSARY, REMOVE FOURTEEN RETAINER NUTS (8) FROM VEHICLE FRAME AND REAR ENGINE COVER (7). INSTALLATION 1. 2. IF REMOVED, INSTALL FOURTEEN RETAINER NUTS (8) TO VEHICLE FRAME AND REAR ENGINE COVER (7). POSITION FRONT ENGINE COVER (1), AND REAR ENGINE COVER (2) ON VEHICLE FRAME  . NOTE Capscrews (3) are capscrews used to longer than other secure engine covers (1) and (2). Install capscrews (3) as noted during removal. NOTE Apply Loctite 242 to capscrews (3) as installed. a. Install two capscrews (3), two new lockwashers (4) and two flatwashers (5) on left- hand side of front engine cover  (7). NOTE Apply Loctite 242 to capscrews (6) as installed. b. Install remaining twelve capscrews (6), twelve new lockwashers (4), and twelve flatwashers (5), to secure front and rear engine covers (1) and (2) to each other, to vehicle frame, and to radiator cover (7). 3. INSTALL AIR CLEANER ASSEMBLY, PARA. 4. 5. 6. INSTALL AIR CLEANER RESTRICTION INDICATOR TUBE, PARA. 19-4. INSTALL AIR CLEANER INTAKE, PARA 5-6. INSTALL LOAD BACKREST IN STORAGE POSITION, IF NECESSARY. REFER TO TM10-3930-660-10. 16-3