TM 10-3930-659-20 17-36.    HYDRAULIC RESERVOIR REPLACEMENT (Con't). 5. Remove two hoses (16) from connectors (18). 6. Remove hose (15) from elbow (13). 7. Remove elbow (13) from hydraulic reservoir (1). 8. Remove two preformed packings (12 and 14) from elbow (13).  Discard preformed packings. 9. Remove two connectors (18) from hydraulic reservoir (1). 10. Remove four preformed packings (11 and 17) from two connectors (18).  Discard preformed packings. TA707688 17-110