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 144 of 352
TM9-2350-311-34-1
Applicable Configurations
Tools
References
Materials/Parts
Equipment Conditions
INITIAL SETUP
588
7-4 ENGINE DISCONNECT BRACKET-TO-BULKHEAD WIRING HARNESS (M109A2/M109A3)
(ENGINE MODEL 7083-7396)
This task covers:
a. Removal
b. Disassembly
c. Assembly
d. Installation
Lockwashers (2) (item 25, Appx F)
M109A2/M109A3
Iockwasher (item 42, Appx F)
General mechanic’s
tool kit (item 14, Appx C)
TM 9-2350-311-20-1
Electrical tape — black (item 25, Appx B)
Batteries disconnected (TM 9-2350-311-20-1)
Lockwasher (item 23, Appx F)
Connector
Wire
No.
Electrical Lead To:
No.
1
2
3
4
5
6
7
8
9
10
11
Battery assembly to master relay
Aeration detector-to-coolant indicator
Aeration detector-to-coolant indicator
Flame heater-to-flame heater switch
Engine oil pressure transmitter-to-engine
oil pressure gage switch
Engine coolant temperature transmitter-
to-engine water temperature gage
Transmission oil temperature transmitter-to-
transmission oil temperature gage
Transmission oil pressure transmitter-to-
transmission oil pressure switch
High/low temperature and pressure
switches/transmitters-to-master warning
light
Not used
Flame heater motor pump-to-flame heater
switch
81
352B
352A
466A
36
33A
324
321
509
466
Connector
Wire
No.
Electrical Lead To:
No.
12
13
14
15
16
17
18
19
20
21
22
23
24
25
In-tank fuel pumps and generator
system relay
76B
Regulator cutoff relay coil energizer
27B
Air cleaner blower motor circuit
415
Master switch voltage regulator lead
400-459B
Engine starter circuit (starter relay bilge
pump circuit breaker neutral safety
switch)
14/146
Voltage regulator-to-master relay lead
2
Ground wire
3
Engine bracket disconnect connector
Voltage regulator connector
Starter relay connector
Bilge pump circuit breaker lead
Driver’s bulkhead connector
Battery connectors
Master relay connectors
7-8
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