TM-9-2320-272-10

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 252 of 481

TM 9-2320-272-10

2-151

(8)

Pull tailgate control lever (18) forward and down to unlock tailgate.

(9)

Raise and lower dump body as required. Refer to task b, steps 4 through 6.

(10)

Depress spring (14) to release safety latch (15), and pull dump body control

lever (16) back to raise dump body. When dump body lifts 2 or 3 ft (.6 or .9 m), move

dump control lever (16) back to neutral position to lock dump body.

(11)

Shift transfer case shift lever (13) up to low range.

(12)

Push brake pedal (10) and release parking brake lever (17).

(13)

Place transmission selector lever (11) in 1 (first).

(14)

Release brake pedal (10) and accelerate.

(15)

Raise dump body at intervals by pulling dump body control lever (16)

back to raise and then forward to neutral position as required.

CAUTION

Do not exceed 5 mph (8 km/h) in 1 (first). If more speed is required,

refer to caution data plate for correct transmission gear range.

(16)

After vehicle has been unloaded:

(a)

Stop vehicle and apply parking brake lever (17).

(b)

Place transmission selector lever (11) in N (neutral).

(c)

Shift transfer case shift lever (13) into desired position.

(d)

Pull dump body control lever (16) forward to lower position.

(e)

Return dump body control lever (16) to neutral position and secure

lever with safety latch (15).

(f)

Push power takeoff control lever (12) forward to DISENGAGE.

(g)

Unhook safety chain and push tailgate control lever (18) up and

back as far as it will go to lock tailgate (4) in closed position.

2-25. OPERATION OF DUMP TRUCKS (Contd)