TM10-3930-660-20 18-29. HYDRAULIC OIL STRAINER -  SERVICE/REPLACE (Cont ‘d) c. Remove and discard gasket (8). 2. IF NECESSARY UNSCREW AND REMOVE STRAINERS (1) AND (2) FROM NIPPLES (9) AND (10) INSIDE TANK (6) . 3. IF NECESSARY, UNSCREW AND REMOVE NIPPLE (9) AND NIPPLE (10) FROM TANK  (6). INSTALLATION 1. IF NECESSARY, INSTALL NIPPLES (9) AND (10) BY SCREWING INTO TANK (6). 2. INSTALL STRAINERS (1) AND (2) BY SCREWING ONTO NIPPLES (9) AND (10). 3. INSTALL ACCESS COVER (3). a. Position new gasket (8) and cover (3) on studs (7). b. Secure cover (3) with fourteen new lockwashers (5) and fourteen nuts (4). 4. FILL FUEL/HYDRAULIC TANK WITH HYDRAULIC OIL, PARA. 5-10. 18-118