TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - Page 158 of 352
TM 9-2350-311-34-1
7-7 DRIVER’S BULKHEAD-TO-MASTER
RELAY WIRING HARNESS (M109A4/M1O9A5)
(ENGINE MODEL 7083-7391) – CONTINUED
a. Removal
1
2
3
4
5
6
7
Remove two screws (28), two Iockwashers (29), two nuts (30), and two connectors (26) from batteries (31).
Discard Iockwashers.
Remove screw (32), washer (33), Iockwasher (34), nut (35), and strap (36). Discard Iockwasher.
Remove screw (37), lockwasher (38), washer (39), and two ground wires (18 and 22) from voltage regulator
mount (40). Discard Iockwasher.
Disconnect connector (23) at wire 503.
Disconnect two wiring harnesses (41) from driver’s compartment side of bulkhead (42).
Remove eight nuts (43), eight Iockwashers (44), eight washers (45), and eight screws (46). Remove two
connectors (24 and 25) from bulkhead (42). Discard Iockwashers.
Disconnect four electrical connectors (19, 20,21, and 27) and remove wiring harness.
b. Disassembly
1
Remove electrical tape only for sections being disassembled.
2 Separate/isolate wiring harness branches.
3 Disassemble wiring harness branches (TM 9-2350-311-20-1).
c. Assembly
1 Assemble wiring harness branches (TM 9-2350-311-20-1).
2 Apply electrical tape only for sections being assembled.
d. Installation
1
Install wiring harness and connect four electrical connectors (19, 20,21, and 27).
2 Install two connectors (24 and 25), eight screws (46), eight washers (45), eight new Iockwashers (44), and
eight nuts (43) to bulkhead (42).
3 Connect two wiring harnesses (41) to driver’s compartment side of bulkhead (42).
4 Connect connector (23) at wire 503.
5 Install two ground wires (18 and 22), washer (39), new Iockwasher (38), and screw (37) to voltage regulator
mount (40).
6 Install strap (36), nut (35), new Iockwasher (34), washer (33), and screw (32).
7-22
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