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 315 of 1275

TM

9-2350-311-20-1

CONTINUED FROM STEP B

G

1. Reconnect lead 321 to TRANSMISSION OIL

PRESSURE gage.

2. Disconnect battery ground leads.

3. Disconnect portable instrument panel wiring

harness from portable instrument panel

disconnect.

4. Place jumper wires from pin A to socket A

(lead 27) and from socket P (lead 459B) to

socket C (lead 459).

5. Reconnect battery ground leads.

6. Turn MASTER switch ON and check

TRANSMISSION OIL PRESSURE gage for a

reading.

7. If TRANSMISSION OIL PRESSURE gage

shows a maximum reading, place a jumper

wire from pin M (lead 321) to ground.

8. Check gage for reading.

9. Turn MASTER switch OFF.

Does TRANSMISSION OIL PRESSURE gage show

minimum when grounded and maximum when not

grounded?

Repair or replace lead 321 of portable

instrument panel wiring harness (para

8-57).

CONTINUED ON NEXT PAGE

3-215

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