TM 10-3930-659-20 17-36.    HYDRAULIC RESERVOIR REPLACEMENT (Con't). 4. Install four new preformed packings (11 and 17) on two connectors (18). 5. Install two connectors (18) on hydraulic reservoir (1). 6. Install two new preformed packings (12 and 14) on elbow (13). 7. Install elbow (13) on hydraulic reservoir (1). 8. Install two hoses (16) on connectors (18). 9. Install hose (15) on elbow (13). 10. Install eight new preformed packings (3 and 5) on four connectors (4). 11. Install four connectors (4) on hydraulic reservoir (1). TA707690 17-112