TM 9-2320-366-10-1
1-14. POWERTRAIN (CONT)
Figure 1-19. Powertrain (Cont)
(4) When the MODE button is pressed, MODE ON will illuminate in the LED display. If
the vehicle is stopped; the LED display will illuminate 5 MODE ON 2, indicating that the
transmission is in 2nd gear and there are five forward gears available. This off-road
mode is useful if road or load conditions require the use of a lower gear range for
maximum torque. The vehicle must be completely stopped and engine operating at idle
speed before the transmission will allow you to shift from a forward gear to Reverse (R)
gear.
(5) The transmission may include an electrically controlled Power Take-Off (PTO) (8).
The PTO provides power to a hydraulic pump, which powers the 15K Self-Recovery
Winch (SRW) (if equipped) and/or the MHC (M1084 and M1086). The transmission will
not shift from Neutral (N) if the PTO is engaged and the winch switch is in the on
position.
c. Transfer Case. The transfer case (3) contains the gears and clutches that provide the
transmission (2) with the seventh gear. The transfer case delivers power from the
transmission to the front driveshaft and rear driveshaft. In normal driving conditions, the
transfer case splits the output torque of the transmission, providing 70 percent of the
torque to the rear and 30 percent to the front. In 1st gear, or any time MODE ON is
illuminated in the LED display, the output torque of the transmission is split evenly between
front and rear.
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