TM-9-2320-338-10
TRUCK, CARGO, 8X8, M977A4
TECHNICAL MANUAL; OPERATOR'S MANUAL
OCTOBER 2008
TM-9-2320-338-10 - Page 595 of 1120
•
Positioning TRANSFER CASE shift lever to LO automatically
activates 8X8 drive.
a.
Set TRANSFER CASE shift lever (1) to LO for added traction. 8X8 DRIVE indicator
(2) will illuminate.
NOTE
Traction control switch should be set to INTER AXLE when transfer
case shift lever is set to LO range while driving on slippery surfaces.
b.
Set traction control switch (4) in INTER AXLE (when LO range is used -
recommended) or 8X8 (if HI range is required), as needed, when driving on slippery
surfaces. INTER-AXLE LOCK indicator (5) and/or 8X8 DRIVE indicator (2) will
illuminate as applicable.
c.
Press throttle pedal (6) slowly when changing speed.
d.
Keep throttle pedal (6) steady after vehicle reaches desired speed.
e.
Turn vehicle slowly when on slippery surfaces.
f.
Steer vehicle away from ruts and large snowbanks.
g.
Steer vehicle straight up and down hills if possible.
h.
Use gear range 2 (2nd) or 3 (3rd) to go down medium grades.
i.
Use gear range 1 (1st) to go down steep or very slippery grades.
j.
Drive at slower speeds and stay twice normal distance from vehicle ahead.
k.
Signal turns sooner than normal to give vehicles behind ample time to safely slow
down.
WARNING
Do not use engine brake when vehicle is on slippery surface. If engine
brake is used incorrectly, vehicle may skid out of control. Failure to
comply may result in injury or death to personnel.
NOTE
Pressing service brake pedal lightly will help keep vehicle from skid-
ding.
l.
Apply brakes sooner, and press service brake pedal (7) lightly to give early warning
that vehicle will slow or stop.
TM 9-2320-338-10
0093
0093-3
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