TM10-3930-660-20 18-19. MLRS  ATTACHMENT -  REPLACE  (Cont’d) 3. DISCONNECT TWO HYDRAULIC HOSES (12) AT MLRS ATTACHMENT HOIST  CYLINDER (13)  AND  THREE  HYDRAULIC  HOSES  (14) AT BOOM FITTINGS (15). a. Remove bolt (16), lockwasher (17), clamp (18), and lockwasher (19) securing each hose (12) to each endplate (20). Discard lockwashers (17) and (19). b. Disconnect two hoses (12) from two elbows (21) on cylinder (13). c. Disconnect three hydraulic hoses (14) from boom fittings (15) at front of boom. Cap open boom fittings (15) with metal caps. Support rear of cylinder (13) with chain prior to removing pivot pin (22). Failure to do so may cause personal injury and damage to cylinder. Adjust lifting device as required to take weight off of pivot pin (22) during removal. 4. REMOVE LOCKNUT (23) CAPSCREW  (24) AND PIVOT PIN (22) SECURING MLRS ATTACHMENT HOIST CYLINDER (13) TO MLRS ATTACHMENT (11). DISCARD LOCKNUT (23). CAUTION Be certain that metal caps are installed on fittings (15) at front of boom as instructed in step 3c. Failure to do so could result in personal injury caused by pressurized hydraulic oil spraying out of open fittings (15) when engine is started. 18-76