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 313 of 863
TM 9-2320-260-34-2
15-67. ELECTRIC HEATER (10 kW) WIRING HARNESS REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
APPLICABLE MODELS
REFERENCES (TM]
M820, M820A1, M820A2
TM 9-2320-260-10
TM 9-2320-260-20
TEST EQUIPMENT
TM 9-2320-260-34P-2
Multimeter (Appendix B, Item 115)
EQUIPMENT CONDITION
TOOLS
.
General mechanic’s tool kit
(Appendix B, Item 1)
Tool kit, electrical (Appendix B, Item 106)
MATERIALS/PARTS
Safety wire (Appendix D, Item 372)
Electrical tape (Appendix C, Item 51)
Three insulated wire splices
(Appendix C, Item 49)
External power source disconnected
(TM 9-2320-260-10).
Battery ground cable disconnected
(TM 9-2320-260-20).
Ceiling filler and side panels removed
(M820, M820A2) (para. 15-44).
Ceiling removed (M820A1) (para. 15-36).
CAUTION
Use care when replacing wiring harness. Excessive snagging or
pulling may damage wiring harness.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
NOTE
Tag wires, cables, and leads for installation.
Remove twelve screws (7) and clamps (6) from van ceiling (4).
Remove grommet (3) from van ceiling (4).
Disconnect wires (2) and (1) from electric heater (9).
Remove thermostat cover (16) from thermostat (14).
Remove two screws (15) from thermostat (14) and control center box (10).
Pull thermostat (14) forward, remove three insulated wire splices (12) from three wires (11) and
wires (13), and remove thermostat (14) from control center box (10). Discard insulated wire
splices (12).
Remove six screws (17) and cover (24) from load center (20).
Remove screw (18) and clamp (25) from mounting plate (19).
Remove setscrew (27) and wire (28) from neutral bar (26).
Remove three screws (22) and wires (23) from 30-amp circuit breaker (21).
NOTE
●
Safety wire will be used to install new wiring harness. Do not
cut safety wire from spool until wiring harness has been pulled
through and proper length has been obtained.
●
Safety wire must be attached to wires with electrical tape.
Remove electric heater wiring harness (5) from van body (8).
15-252
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