TM10-3930-660-20 18-32. BOOM HOIST CYLINDERS - REPLACE (Cont'd) Apply anti-seize compound to lower pivot pin (7) as installed. 2. ALIGN CYLINDER BASE LOWER MOUNTING HOLES AND INSTALL LOWER PIVOT PIN (7), SCREW (9) AND NEW LOCKNUT (8). 3. CONNECT HYDRAULIC LINES (5 AND 6) AS TAGGED DURING CYLINDER (2) REMOVAL. 4. CAREFULLY  RAISE  CYLINDER LIFTING DEVICE UNTIL ROD CYLINDER (2) IS AIMED AT MOUNTING HOLE ON BOOM. (2) USING EYE OF PIVOT PIN Have assistant signal operator eye of cylinder (2) is aligned pivot pin hole. when rod with boom If installing both cylinders (2) at the same time, note that in step 5 one cylinder will extend, and the other will remain stationary. Cylinder (2) that extended must be aligned and then secured to boom with pivot  pin  (1). When cylinder (2) that extended is secured to boom, other cylinder (2) will respond to controls, and can be extended as 5. 6. 7. well. START ENGINE AND RUN AT FULL THROTTLE,  TM10-3930-660-10. EXTEND CYLINDER ROD UNTIL UPPER PIVOT PIN (1) CAN BE INSTALLED. REPOSITION CYLINDER (2), AS NECESSARY, USING LIFTING  DEVICE. STOP ENGINE, TM10-3930-660-10. Apply anti-seize compound to upper pivot pin (1) as installed. 18-130 8. 9. 10. 11. INSTALL UPPER PIVOT PIN (1), SCREW (4) AND NEW LOCKNUT (3). DISCONNECT LIFTING DEVICE FROM CYLINDER (2) AND BOOM. REMOVE BOARD FROM ACROSS VEHICLE DECK. BLEED AIR FROM HYDRAULIC SYSTEM. a. b. c. Start  engine,  TM10-3930-660-10. Operate boom hoist functions. Raise and lower boom five times. Stop engine and relieve hydraulic pressure by operating boom hoist functions of hydraulic joystick, TM10-3930-660-10. INSTALL TRANSMISSION COVER, PARA.  16-6.