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 196 of 352

INITIAL SETUP

Applicable Configurations

References

Equipment Conditions

Materials/Parts

a.

Removal

TM 9-2350-311-34-1

7-12 POWER LEAD WIRING HARNESS (M109A2)

This task covers:

a. Removal

b. Disassembly

c. Assembly

d. Installation

Lockwashers (4) (item 34, Appx F)

M109A2

Tools

TM 9-2350-311-20-1

General mechanic’s tool kit (item 14, Appx C)

Batteries disconnected (TM 9-2350-311-20-1)

Electrical tape — black (item 25, Appx B)

Driver’s instrument panel removed (TM 9-2350-311-20-1)

Gasket (item 63, Appx F)

Lockwashers (4) (item 30, Appx F)

NOTE

Vehicles with engine model 7083-7396 use connector 5 for flame heater system.

Vehicles with engine model 7083-7391 use connector 5 for glow plug system.

Connector

Wire

No.

Electrical Lead To:

No.

Connector

Wire

No.

Electrical Lead To:

No.

1

2

3

4

5

6

Connector bulkhead (to slave start receptacle) 49

Connector accessory control box

10

Connector slip ring segment board

47

Connector hull lighting wiring harness

(interconnects with wire 15)

10

Connector starter switch/flame heater

switch circuit breaker (to wire 15) (engine model

7083-7396) or connector starter switch/glow

plug switch (engine model 7083-7391)

10

Connector fuel pump circuit

breaker (to wire 76)

10

7

8

9

10

11

12

Connector fuel prime pump switch

circuit breaker (to wire 588)

10

Connector master warning light/

engine instrumentation circuit

breaker (to wire 27)

10

Connector bilge pump switch circuit

breaker (to wire 450)

10

Connector auxiliary outlet/dome

light circuit breaker (to wires 37 and 38)

10

Connector slave start receptacle

49

Ground

50

1 Disconnect six connectors (5 thru 10) from circuit breakers (13).

2 Disconnect connector (4) from wire 15 lead.

7-60