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 308 of 1275

TM 9-2350-311 -20-1

3-3 TROUBLESHOOTING CHART — CONTINUED

p. TRANSMISSION OIL TEMPERATURE INDICATOR TRANSMISSION OIL TEMP INDICATOR NEEDLE FAILS

CIRCUIT — CONTINUED

TO MOVE OR IS UNSTEADY; ALL OTHER GAGES

OPERATE PROPERLY — CONTINUED

CONTINUED FROM STEP H

I

1. Reconnect bulkhead-to-headlights/bilge

pump wiring harness to driver’s bulkhead.

2. Disconnect engine disconnect bracket-to-

bulkhead wiring harness from engine

disconnect bracket.

3. Turn MASTER switch ON and check

TRANSMISSION OIL TEMP gage for a

reading.

4. If TRANSMISSION OIL TEMP gage shows a

maximum reading, place a jumper wire from

socket L (lead 324) to ground.

5. Check gage for reading.

6. Turn MASTER switch OFF.

Does TRANSMISSION OIL TEMP gage show

minimum when grounded, and maximum when not

grounded?

Repair or replace lead of powerplant

wiring harness (para 8-43, M109A2/

M109A3; 8-44, M109A4/M109A5).

END OF TASK

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