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 329 of 1275

TM 9-2350-311-20-1

(1) FUEL LEVEL INDICATOR NEEDLE FAILS TO MOVE

OR IS UNSTEADY; ALL OTHER GAGES OPERATE

PROPERLY

INITIAL SETU P

Equipment Conditions

. .

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

Engine access door open (TM 9-2350-311-10)

Multimeters (item 36, A

PPX

H)

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

TA-1 probe kit (item 43, App

X

H)

Portable instrument panel cover removed (para 8-17)

(Long test leads may be needed for some tests;

Driver’s instrument panel cover removed (para 8-17)

16 AWG wire maybe used as an extension.)

Fuel tanks full (TM 9-2350-311-1 O)

A

1. Disconnect lead 29-31 from FUEL LEVEL

gage.

2. Turn MASTER switch ON and check

FUEL LEVEL gage for a reading.

3. If FUEL LEVEL gage shows a maximum

reading, use a jumper wire to ground FUEL

LEVEL gage.

4. Check FUEL LEVEL gage for a reading.

5. Turn MASTER switch OFF.

Does FUEL LEVEL gage show minimum when

grounded and maximum when not grounded?

Go to step F.

CONTINUED ON NEXT PAGE

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Tools