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TM 9-2320-270-10
UNUSUAL TERRAIN - CONTINUED
Sand
1.
2.
3.
4.
Reduce tire pressure when driving on soft sand and over dunes.
Never release so much pressure that tires slip on rims.
Drive at low speeds when tire pressure is reduced.
Inflate tires to normal pressure when conditions improve. Inflate front and pusher axles
to 95 psi (650 kPa) and tandem axles to 85 psi (586 kPa).
Keep steady even movement with both transmissions in low range. Keep M911 Truck
Tractor rolling without straining the engine and power train.
CAUTION
Exercise caution when stuck, or when loss of traction is experienced, to prevent
bouncing. If bouncing is experienced, let up on the throttle and gradually increase
engine rpms to move the vehicle.
If M911 Truck Tractor bogs down, do not continue to work it until buried.
Shovel a path ahead of each tire.
Place boards, brush, channels, canvas, or similar material under and in front of drive
tires.
If M911 Truck Tractor cannot be freed under its own power, use winches if possible or
have it towed out.
When operating in muddy, sandy or dusty areas, do the following:
Make sure tire valve stem has a cap.
Check WATER TEMPerature gage (2), transmission OIL TEMPerature gage (3), and OIL
PRESSure gage (4) often.
If M911 Truck Tractor overheats, stop and find out why. Service, or if necessary, no-
tify organizational maintenance.
T A 2 2 0 8 9 0
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