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 176 of 1275

TM9-2350-311-20-1

3-3 TROUBLESHOOTING CHART — CONTINUED

e. ENGINE—CONTINUED

(7) ENGINE HAS LOW OR NO OIL PRESSURE

Tools

General mechanic’s tool kit (item 64, Appx H)

Gage (item 23, Appx H)

References

TM 9-2350-311-10

Equipment Conditions

Transmission access doors open (TM 9-2350-311-10)

Air intake grille open (TM 9-2350-311-10)

CAUTION

If engine indicates low oil pressure (MASTER warning

light on) or no oil pressure, shut engine off immediately.

Failure to do so may result in serious damage to engine.

Check engine oil level. Level should be between

add and full marks (TM 9-2350-311-10).

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Is engine oil at proper level?

grade of oil (para 2-15).

Bring oil to proper level with proper

Check oil lines, oil filter housing and engine

. .

cover for oil leaks (para 5-4).

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Is engine oil system free of leaks?

Repair or replace faulty components

(para 5-4). If leak cannot be corrected,

notify support maintenance.

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CONTINUED ON NEXT PAGE

3-76

INITIAL SETUP