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.
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