TM 5-6350-264-14&P-10
NAVELEX EE 181-AA-OMI-110/E121 C-9412
T.O. 31S9-2FSS9-1-10
Section III. GENERAL MAINTENANCE
5-5.
MAINTENANCE ACTION. The extent of
direction and general support maintenance is governed
by the Maintenance Allocation Chart (MAC), Appendix B.
The MAC authorizes on-site test and replacement of the
AC POWER indicator lamp, battery, power supply, fuse
F1, status processor, PC boards in status processor,
LATCH/ NON-LATCH toggle switch,
RESYNC pushbutton switch, connector receptacle, and
tamper alarm switch (TAS). The MAC also authorizes
on-site inspection and replacement of the mode switch,
battery, interconnecting wiring assembly in the status
processor, and the terminal board assembly. Periodic
testing of the Control Unit is not scheduled because the
J-SIIDS is maintained in continuous operation.
Section IV. REMOVAL AND REPLACEMENT OF MAJOR COMPONENTS AND ASSEMBLIES
5-6.
REMOVAL AND INSTALLATION
PROCEDURES.
a.
To remove AC POWER indicator lamp,
unscrew the plastic lens from the front side
of the door. Grasp the lamp, press in,
rotate to the left, and pull out.
b.
To install new AC POWER indicator lamp,
insert it in socket, press in, and rotate to the
right until it locks into place. Put plastic
lens over lamp and screw in place.
c.
To remove battery, turn off switch S1 on
power supply. Disconnect and insulate
wires from battery terminals. As battery is
heavy, carefully lift and turn it to remove
from bottom of CU enclosure.
d.
To install a new battery, position it outside
CU enclosure. Carefully insert battery, end
first, turn and lower into bottom of CU
enclosure. Connect wires to battery
terminals. Turn on switch S1 on power
supply.
e.
To remove power supply, turn off switch S1
on top of power supply. Pull main circuit
breaker to remove 120 vac from CU.
Disconnect wires from battery.
Carefully (battery is heavy) lift and turn
battery to remove it from bottom of CU
enclosure. Tag and disconnect wires from
TB2 and TB4. Remove screws that secure
cover, and remove cover. Tag and
disconnect wires from TB1. Carefully
remove screws that secure power supply to
side of CU enclosure. Be careful not to
drop power supply inside CU. Note cable
clamp under screw near TB4 (bottom front).
Support power supply and turn it so wires
can be tagged and disconnected from TB3
on the bottom of power supply. Remove
power supply.
f.
To install new power supply, remove cover,
and turn unit so TB3 is accessible. Support
power supply and connect wires to TB3.
Turn power supply upright and position it
over standoffs on side of CU enclosure.
Note that cable clamp goes under screw on
bottom front of power supply. Insert screws
and tighten to secure power supply.
Connect wires to TB1. Replace cover and
secure with screws. Connect wires to TB2
and TB4. Position battery outside CU
enclosure. Carefully insert battery end first,
turn, and lower it into bottom of CU
enclosure. Connect wires to battery
terminals. Switch on main circuit breaker.
Turn on switch S1 on top of power supply.
5-122
