TM 5-1940-277-34
MAST WIRING HARNESS REPLACEMENT INSTRUCTIONS - LOWER
(Continued)
LOCATION
ITEM
ACTION
REMARKS
REMOVAL
1.
Lower mast (1)
a.
Light sockets
Remove.
Reference TM
(2) (naviga-
5-1940-277-20.
tion)
b.
Spiral wrap
Remove all that
Wraps around
(3) on wires
is exposed.
wire. Unwind
and retain.
c.
Socket (4)
Unscrew plug
Disconnects
and plug (5)
from socket.
upper mast
harness from
lower mast
harness.
d.
Socket
Remove screw
Use screwdriver.
retaining
from side of
Frees socket to
screw (6) and
socket housing
be pulled out of
washer (7)
(8).
housing.
e.
Socket core
Pull out of
(9)
socket housing
(8).
NOTE
Before next step check wire color leading to each pin. Pin numbers are on face of socket and
should be: 1 Blue, 2 Black, 3 Brown, 4 - Green. If not, make diagram of connections.
f.
4 wire
Loosen and pull
Use screwdriver.
retaining
wires out.
Lay core aside
screws (10)
for reuse.
NOTE
Next step applies to point where wires enter mast frame.
2-123
