RIM ASSEM 3Y0455 - Caterpillar

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Manual Mode - To select the gear speed, turn transmission autoshift switch (1) to manual position (2) . Pressing transmission upshift switch (3) will cause the transmission to shift into the next highest gear.Pressing transmission downshift switch (4) will cause the transmission to shift into the next lowest gear.
Automatic Mode - The operator selects the highest desired operating speed from the options on transmission autoshift switch (1). The electronic transmission control selects the proper transmission gear according to the ground speed of the machine. Downshift switch (4) is active in all gears. Down shift switch (4) can cause transmission downshifts at machine speeds that are higher than normal.Pressing and releasing downshift switch (4) will cause a downshift of one gear. The downshift will only occur if the machine speed and the engine speed will not result in an engine overspeed condition.Pressing and holding downshift switch (4) will cause the transmission to continue to downshift as the machine speed decreases.The transmission will remain in the downshifted gear for three seconds after the downshift switch is released. Then, automatic shifting is resumed. Turn autoshift switch (1) to a selected gear speed in order to activate the autoshift function. The transmission will shift from first gear through to the selected gear automatically. The highest gear that will be used is determined by the selection on the switch.As the machine slows, the transmission will automatically downshift.