TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 357 of 863
15-82. LOAD CENTER MAINTENANCE
THIS TASK COVERS:
a. Removal
c. Assembly
b. Disassembly
d. Installation
INITIAL SETUP
APPLICABLE MODELS
M820, M820A1, M820A2
TEST EQUIPMENT
Multimeter (Appendix B, Item 115)
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Tool kit, electrical (Appendix B, Item 106)
Soldering gun (Appendix B, Item 117)
MATERIALS/PARTS
Two lockwashers (Appendix D, Item 248)
Gasket (Appendix D, Item 76)
Four lockwashers (Appendix D, Item 224)
Three lockwashers (Appendix D, Item 244)
MATERIALS/PARTS (Contd)
Safety wire (Appendix D, Item 372)
Electrical tape (Appendix C, Item 51)
Sealing compound (Appendix C, Item 43)
Solder (Appendix C, Item 47)
REFERENCES (TM)
TM 9-2320-260-10
TM 9-2320-260-20
TM 9-2320-260-34P-2
EQUIPMENT CONDITION
●
Battery ground cable disconnected
(TM 9-2320-260-20).
●
External power source disconnected
(TM 9-2320-260-10).
NOTE
Tag wires, cables, and leads for installation.
CAUTION
Use care when replacing load center. Excessive snagging and
pulling may damage wiring harness.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Remove six screws (1) and cover (2) from load center (4).
Remove three setscrews (12) and wires (13) from relay (5).
Remove setscrew (10) and wire (11) from neutral bar (6).
Remove three screws (8) and five wires (9) from three 20-amp circuit breakers (7).
Remove main wiring harness (3) from load center (4).
Remove setscrew (20) and three wires (21) from relay (5).
Remove setscrew (18) and wire (19) from neutral bar (6).
Remove three screws (16) and five wires (17) from three 20-amp circuit breakers (15).
Remove main wiring harness (14) from load center (4).
NOTE
Perform steps 10 through 12 for M820 and M820A2 vehicles.
Remove setscrew (27) and wires (28) and (26) from relay (5).
Remove screw (24) and wire (25) from 20-amp circuit breaker (23).
Remove blackout bypass wiring harness (22) from load center (4).
Remove nut (30), lockwasher (29), wires (31), (32), and (35), screw (34), and lockwasher (33) from
load center (4). Discard lockwashers (29) and (33).
Remove three screws (37) and wires (38) from 40-amp circuit breaker (36).
Remove air conditioner wiring harness (39) from load center (4).
15-296
TM 9-2320-260-34-2
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