TM10-3930-660-34 16-12.1. INNER BOOK - REPLACE/REPAIR (Cont’d) 5.    DISCONNECT  BOOM  ELECTRICAL  CABLE  (25)  FROM SOCKET (26) ON VEHICLE FRAME. 6.    REMOVE  FOUR  BOLTS  (27),    FOUR  LOCKWASHERS (28),  AND COVER (29) FROM REAR OF OUTER BOOM (2)   DISCARD   LOCKWASHERS   (28).      IF   NECESSARY REMOVE RETAINER (66). 7.    SEPARATE  EXTEND  CHAIN  (3)  FROM  CLEVIS  (30)  AT REAR OF INNER BOOM (31). a.  Remove retaining ring (32) from pin (33). b.  Remove pin (33) from clevis (30) and separate extend chain (3) from clevis (30). 8.      TAG   AND   REMOVE   TWO   HOSES   (34)   FROM   BOOM EXTEND CYLINDER (35). 9. PLACE WOOD BLOCK UNDER BOOM EXTEND CYLINDER (35),  BETWEEN CYLINDER (35) AND INNER BOOM (31).  WOOD BLOCK WILL SUPPORT CYLINDER (35) WHEN PIN (36) IS REMOVED. 10.   DISCONNECT   PIN   (36)   SECURING   BASE   OF   BOOM EXTEND CYLINDER (35) TO ANCHOR (37). a.  Remove two retaining rings (38) from pin (36). b.    Slide  pin  (36)  right  or  left  through  hole  in  anchor  (37) until p: (36) touches outer boom (2). 11.  CAREFULLY  PULL  HOSES  (13,    14,    AND  15)  FROM UNDERSIDE  OF  HOSE  PULLEY  (39)  OUT  THE  REAR OF OUTER BOOM (2). 12.    REMOVE    BOOM    ELECTRICAL    CABLE    (25)    FROM OUTER BOOM (2). a.    Tie  one  end  of  a  rope  to  anchor  (37)  at  rear  of  outer boom (2). 16-60