TM 5-3805-293-10
0005
TRANSMISSION OPERATION CONTINUED
Sequential Speed Shifting
0005
Sequential speed shifting allows the operator to change transmission gears while the machine is in motion. Activat-
ing Upshift and Downshift switches as desired will result in obtaining optimum ground speed for the operation
being performed (Figure 12). Speed shifting can be performed at any loading as shifts are automatically compen-
sated based on engine load.
Upshifts can occur at any engine speed but should be matched to load. Several shifts can be commanded at one
time, although there is a delay between shifts.
Downshifting requires engine speed to be less than full throttle to prevent engine overspeeding. Downshift control
requests are computer controlled. If engine speed is too high, engine speed is reduced to allow downshift to occur.
Upon shift completion, throttle control is returned to the operator.
Figure 12. Transmission Upshift and Downshift Buttons.
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