TM 9-2320-279-10-1
2-378
Change 8
Operation Under Unusual Conditions (Cont)
2-34. OPERATE VEHICLE IN SAND OR MUD (CONT).
NOTE
S
Principles of driving in sand can also be applied to
driving in mud.
S
Best time to drive on sand is at night or early
morning when sand is damp. Damp sand gives
better traction.
b.
Check air filter restriction indicator (1) often.
c.
Adjust tire pressure (para 3-9).
d.
Set transfer case shift lever (2) to LO.
CAUTION
Wheel hop condition should be avoided to prevent
possible damage to drivetrain. If wheel hop begins to
occur, ease up on throttle to allow tires to grip surface.
If wheel hop continues, release throttle and apply
brakes. Apply throttle slowly as traction permits.
e.
Start slowly. Do not spin wheels when starting to move vehicle.
f.
Set TRACTION CONTROL lever (3) to INTER-AXLE DIFF. LOCK for
added traction.
g.
Set transmission range selector (4 or 4.1) to 2 or 1, as needed, for added
traction.
h.
Do not straddle sand mounds or drive on sides of two sand mounds. Loose
sand will not support vehicle on steep slopes.
i.
Keep throttle treadle (5) steady after vehicle reaches desired speed.
