TM 5-3825-225-14&P
(11)
Remove screws (20), nut (15), lockwasher (16), washers (18 and 19), and resistors (21). Discard
lockwasher.
(12)
Remove screws (11) and brackets (17 and 25).
(13)
Remove screw (2), nuts (8), lockwashers (9), receptacles (3 and 5), gasket (30), and connector pin
(4). Discard lockwashers and gasket.
b.
Test and Repair.
(1)
Use a multimeter to test the resistors. Resistor (29) should read 0.9 ohms and resistor (21) should
read 4.5 ohms. Replace the resistors if the readings are incorrect.
(2)
Use a multimeter to test the circuit breakers' resistance. If the meter reads greater than 5 ohms,
replace the circuit breaker. If the meter reads zero, the circuit breakers are okay.
c.
Assembly and Installation (See Appendix F, Figure 3).
(1)
Attach fuse block (10), terminal block (13), and brackets (17 and 25) to enclosure (6).
(2)
Attach circuit breakers (12) to fuse block (10).
(3)
Attach resistor (29) to brackets (25) with washers (26 and 27), new lockwasher (24), nut (23), and
screw (28).
(4)
Attach resistor (21) to brackets (17) with washers (18 and 19), new lockwasher (16), nuts (15), and
screws (20).
(5)
Attach enclosure (6) to junction box with new lockwashers (9) and nuts (8).
(6)
Insert connector pin (4) into receptacle (5).
(7)
Attach receptacles (3 and 5) and new gasket (30) to junction box door with new lockwashers (9), nuts
(8), and screws (2).
(8)
Thread wires into junction box assembly. Install junction box assembly to mounting brackets with
new lockwashers (31), nuts (32), and screws (33).
(9)
Connect conduit (5, Appendix F, Figure 10) to junction box.
(10)
Connect wires to fuse block (10, Appendix F, Figure 3), terminal block (13), receptacles (3 and 5),
and resistors (21 and 29). Use wiring diagram to aid in connecting wires at proper terminals (see
Figures 4-2 and 4-3).
(11)
Install enclosure (6, Appendix F, Figure 3) to junction box with screws (7).
4-17.
JUNCTION BOX (LIGHTS) MAINTENANCE.
a.
Removal and Disassembly (See Appendix E Figure 8).
(1)
Pry junction box cover (7) from body (3) and remove preformed packing (6). Discard preformed
packing.
(2)
Disconnect wires from terminal board (4).
(3)
Remove screws (5) and terminal board (4) from body (3).
(4)
Remove nuts (10), lockwashers (9), screws (8), and body (3) from rear bumper. Discard
lockwashers.
(5)
Remove relief valve (2) from body (3).
b.
Assembly and Installation (See Appendix E Figure 8).
(1)
Attach relief valve (2) to body (3).
(2)
Attach body (3) to rear bumper with nuts (10), new lockwashers (9), and screws (8).
(3)
Thread wires from conduit into body (3) and attach conduit to body.
(4)
Attach terminal board (4) to body (3) with screws (5). Connect wires to terminal block.
(5)
Insert new preformed packing (6) and press junction box cover (7) into body (3).
4-17
