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 184 of 1275

TM9-2350-311-20-1

3-3 TROUBLESHOOTING CHART — CONTINUED

f.

TRANSMISSION AND DRIVING CONTROLS —

(1) TRANSMISSION OVERHEATS; TRANSMISSION OIL

CONTINUED

TEMPERATURE GAGE READS OVER 270°F

(132°C), MASTER WARNING LIGHT IS LIT –

CONTINUED

CONTINUED FROM STEP A

Bring transmission oil to proper level

(TM 9-2350-311-10).

NOTE

If oil level is low, check transmission

seals, plugs, gaskets, and lines for oil

leaks. Correct cause of leaks if within

scope of unit maintenance. If repairs

are beyond scope of unit maintenance,

notify support maintenance.

Check transmission oil cooler lines for leaks or

restrictions (para 9-4).

I

I

Are transmission oil cooler lines free of leaks and

restrictions?

I

Tighten lines that leak. If leak persists,

repair or replace restricted lines (para 9-4).

Troubleshoot transmission oil temperature

indicator circuit (para 3-3p).

I

Is transmission oil temperature indicator circuit

operating properly?

as required (para 8-12).

Repair or replace transmission oil

temperature indicator circuit components

CONTINUED ON NEXT PAGE

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