TM 5-3895-368-14&P (53)  facing  up.    Using  a  3/8  inch  drift, drive the pin loose from the body (46) and the  block  (54).    Remove  old   load   chain (55) from block (54). (10) Rotate  the  lower  hook  body  (46)  until  the larger pin hole is facing up.  Slide last link of new load chain in slot of block (54) and position     block     into     lower     hook     body, ensuring  that  opening  of  the  pin  hole  is aligned   with   the   pin   hole   in   hook   body. Install  pin  (53),  small  end  first,  and  seat pin with hammer until flush with surface of hook body. c. Disassembly - Brake End (Figure 4-3). (1) Remove two screws (13) and lockwashers (14) and remove cover (11). (2) Tag    and    disconnect    leads    from    power cable (23), control cable (20), and contactor (36). NOTE It  is  not  necessary  to  disconnect  all jumper    leads    from    contactor    (36) unless replacement of leads or contactor is required. (3) Remove    screw    (16),    lockwasher    (17), washer (18), control cable (20), and power cable   ground   lead   from   anchor   boss   in frame assembly. (4) Remove screw (41) and contactor assembly (36) from gear housing. (5) If    necessary,    remove    screws    (35)    and separate     bracket     (38)     from     contactor assembly (36). (6) Remove two nuts (10), and carefully lift off the brake field (8) with coil (7), springs (6), brake armature (5), friction plate (2), brake disc  (3),  friction  plate  (4),  brake  disc  (3), friction plate (2) and brake plate (1). (7) If necessary, remove coil (7) and strap (9) from brake field (8). NOTE If rotor armature (5) or field (8) require replacement,     both     parts     must     be replaced. (8) Remove retaining ring (40) and brake hub (39). d. Disassembly  -  Gear  and  Hook  Section  (Figure 4-4). (1) Remove   hook   assembly   (42)   and   load chain  (55)  as  described  in  paragraph  b. above, and remove chain from hoist. (2) Drive  pin  (52)  from  castle  nut  (43),  and remove     the     nut,     thrust     bearing     (44), washer  (45)  and  body  (46)  from  the  hook (47). (3) If necessary, remove nut (51), screw (49), latch (48), and latch spring (50) from hook (47). (4) Remove the hoist brake section, paragraph c.  above. (5) Remove  three  machine  screws  (31)  and carefully   separate   frame   assembly   (25) from   gear   housing   (40).      Remove   and discard gasket (24). (6) Lift out shaft and pinion assembly (35). (7) Lift     out     intermediate     pinion     (39)     with protector   (38).      Pull   bearing   (36)   from intermediate pinion (39). Remove retaining ring (37) and protector (38) from the    intermediate    pinion    (39).        Do    not disassemble the protector (38), the unit  is considered non-repairable. (8) Remove retaining ring (34) and gear (33). (9) Remove  other  bearing  (36)  from  bore  in frame assembly (25). (10) If    necessary    for    replacement    of    frame assembly (25), remove screw (30), lockwasher   (29),   washer   (28)   and   plugs (27). (11) Loosen     screws     (7)     and     remove     four screws   (32)   and   carefully   separate   the gear  housing  (40)  and  the  motor  housing (56). (12) Remove    nut    (20)    from    slot    in    motor housing (56). Lift out upper hook assembly (2) with adapter (8). (13) Remove  bearing  (41)  from  gear  housing (40). (14) Remove  bearing  (23),  chain  guides  (22), and lift wheel (21). (15) If  necessary,  remove  two  screws  (7)  and nuts (9) from the upper hook assembly. 4-6