TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 313 of 1275

TM 9-2350-311-20-1

CONTINUED FROM STEP C

D

1, Reconnect lead 27 to TRANSMISSION OIL

PRESSURE gage,

2. Disconnect battery ground leads.

3. Disconnect portable instrument panel wiring

harness from portable instrument panel

disconnect.

4. Place a jumper wire from socket P (lead

459B) to socket C (lead 459).

5. Place red lead of multimeters in socket A (lead

27) and black lead to ground.

6. Reconnect battery ground leads.

7. Turn MASTER switch ON and check for

voltage.

8. Turn MASTER switch OFF.

Is voltage present?

Repair or replace lead 27 of portable

instrument panel wiring harness from

TRANSMISSION OIL PRESSURE gage

(para 8-57)

1. Reconnect portable instrument panel

E

wiring harness to portable instrument panel

bracket.

2. Disconnect lead 27 from circuit breaker

output.

3. Place red lead of multimeters in circuit

breaker output and black lead to ground.

4. Turn MASTER switch ON and check for

voltage.

5. Turn MASTER switch OFF.

Is voltage present?

Repair or replace lead 27 of bulkhead-

to-portable instrument panel wiring

harness (para 8-57).

CONTINUED ON NEXT PAGE

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