TM 10-5410-221-14/1
anti electrical components of the power distribution box.
(2) Install terminal board cover (57, fig. 6-7, sheet 2
'he 6() Hertz wiring harness provides 60 Hertz power
of 5) on terminal board (60).
between terminal board and electrical components of the
(3) Place circuit breaker panel (123, fig. 6-7, sheet 5
power distribution box. The 60 Hertz wiring harness
of 5) in position and secure with screws.
consists of electrical wires terminating at 18 terminal
lugs. Refer to figure 6-7.
6-22. 400 Hertz Wiring Harness Assembly
b. Removal. Remove 60 Hertz wiring harness
assembly (19, fig. 6-7, sheet 1 of 5) as required to
a. General. The 400 Hertz wiring harness provides
replace damaged or defective components as follows.
400 Hertz power between four terminal boards and
(1) Open circuit breaker panel assembly cover (125.
electrical components of the power distribution box. The
400 Hertz wiring harness consists of electrical wires
(2) Remove screws which secure circuit breaker
terminating at 46 terminal lugs. Refer to figures 6-7 and
panel (123) to distribution box (124) and fold back
6-26.
exposing interior of distribution box.
b. Removal. Remove 400 Hertz wiring harness
(3) Remove terminal board cover (57, fig. 6-7, sheet
assembly (18, fig. 6-7, sheet 1 of 5) according to
2 of 5) and nuts (53), lockwashers (54) and washers (55)
sequence of index numbers assigned to figure 6-7 and
to disconnect electrical leads from terminals on terminal
observing the following.
board (60).
(1) Open circuit breaker panel cover (125, fig. 6-7,
(4) Remove screws (17, fig. 6-7, sheet 1 of 5) and
sheet 5 of 5).
disconnect electrical leads from circuit breakers (104 and
(2) Remove screws which secure circuit breaker
122, fig. 6-7, sheet 5 of 5).
panel (123) to distribution box (124) and fold back
(5) Remove 60 Hertz wiring harness assembly (19).
exposing interior of distribution box.
c. Disassembly. Disassemble 60 Hertz wiring
(3) Remove terminal board covers (49 and 57, fig. 6-
harness as required to replace damaged parts as follows
7, sheet 2 of 5) and remove nuts (53) lockwashers (54)
and washers (55) to disconnect electrical leads from
(1) Remove terminals (1, 2, 3 and 4).
terminals 1, 2, 3, 4 and 5 on terminal board (52) and
(2) Remove tie straps (5), identification strap (6) and
terminal 5 on board (60). Remove terminal board covers
remove damaged or defective wires.
(25 and 35) from terminal boards (38) and (28) and
d. Assembly. Using figure 6-25 as a guide,
remove nut (29), lockwasher (30) and washer (31) to
assemble the 60 Hertz wiring harness as follows:
disconnect terminal on board (28 and 38).
(1) Replace wires and straps.
(4) Remove screws to disconnect electrical leads
(2) Install terminals (1, 2, 3 and 4, fig. 6-25) and
from circuit breakers (101, 110, 113, 116, and 122, fig. 6-
crimp to secure.
7, sheet 5 of 5).
e. Test. Check continuity of wiring harness using a
(5) Remove 400 Hertz wiring harness (18, fig. 6-7,
continuity light, multimeter (para 11-2) or other continuity
sheet 1 of 5) from distribution box.
checking device. Continuity must exist between wire
c. Disassembly. Disassemble 400 Hertz wiring
ends. Replace applicable wire if continuity does not exist
harness as required to replace damaged parts as follows
between wire ends.
f. Repair. Repair 60 Hertz wiring harness assembly
(1) Remove terminals (1 through 8).
to return to a serviceable condition as follows.
(2) Remove identification strap (9) and tie straps (10)
(1) Inspect individual wires for cuts and abrasions of
from harness assembly.
insulation. Minor cuts and abrasions are acceptable and
(3) Remove any damaged or defective electrical
shall be repaired by wrapping damaged area with vinyl
leads.
tape or other suitable electrical wiring tape.
d. Assembly. Using figure 6-26 as a guide,
(2) Inspect tie straps (5, fig. 6-25) for tightness and
assemble the 400 Hertz wiring harness as follows:
fraying. Replace any loose or frayed tie straps.
(1) Install new wires, if required, and secure with tie
g .Installation. Using figure 6-7 as a guide, install the
straps (9, fig. 6-26).
60 Hertz wiring harness as follows: (1) Position harness
(2) Install terminals (1 through 8) and crimp to
assembly (19, fig. 6-7, sheet 1 of 5) in distribution box
secure.
and install applicable electrical leads on terminals 1, 2, 3
e. Test. Check continuity of wiring harness using a
and 4 respectively of terminal board (60, fig. 6-7, sheet 2
continuity light, multimeter (para 11-2). or other
of 5). Install applicable electrical leads on applicable
circuit breakers.
6-34
