TM-9-2320-343-10
TRUCK, CARGO, 8X8 M985A4 W/WINCH AND M985A4 W/O WINCH
TECHNICAL MANUAL; OPERATOR'S MANUAL
OCTOBER 2008
TM-9-2320-343-10 - Page 351 of 1128
OPERATOR MAINTENANCE
OPERATE TRANSMISSION AND TRANSFER CASE
INITIAL SETUP:
Not Applicable
OPERATE TRANSMISSION
CAUTION
If transmission range selector flashes current range selection while op-
erating vehicle (shift selection is inhibited), DO NOT shut off engine or
attempt to change range selection. Shutting off engine may result in the
inability to select a drive range at startup, and diagnostic data may be
lost. Move vehicle to safe place and notify field level maintenance as soon
as possible (refer to limp home/transmission fault for more information).
(WP 0102)
NOTE
•
When transmission oil is below 19°F (-7 C), the only gears available
are R (reverse), N (Neutral), and 3 (third gear range) when D (drive)
is selected. The remaining gears in D (drive) will not be available until
transmission oil in sump warms above 19°F (-7 C).
•
The transmission range selector has six buttons and digital display
window. The six buttons are: R (reverse), N (neutral), D (drive), up
arrow, down arrow, and MODE. The transmission has five forward
gears.
•
The MODE button located on the transmission range selector does
not perform any operator function.
•
The digital display window on the transmission range selector will
display R (reverse), N (neutral), or the number 1 through 5,
depending on gear range selected.
•
The lowest gear of any gear range is always first gear.
•
When transmission is set to D (drive), 5 (fifth gear range) is
automatically chosen and displayed in the digital display window.
•
When engine brake is activated and vehicle is decelerating, 2
(second gear range) will be displayed in the digital display window.
TM 9-2320-343-10
0048
0048-1
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