Transmission Controls
Detroit™ Automated Transmissions
Note: See Detroit™ Multifunction Control for complete Detroit automated transmission operating instructions.
Vehicles with Detroit transmissions use the multifunction control shown in Fig.. This control moves in two directions and has two switches. It is used to request manual shifts, change shift mode, set engine brake levels, and control specialty engine brake functions during cruise control operation.
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Front View
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Shift Requests
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Four positions for engine brake settings
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Engine Brake Symbol
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D/N/R Switch
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Mode Switch
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Gear Shift Symbol
Fig. 1, Detroit Multifunction Control
Manual Transmissions
Note: See Eaton® Fuller® Transmission Operation Tips for complete manual transmission operating instructions.
if equipped, the transmission range control and splitter valves are attached to the gear shift knob.
To operate a range-shift transmission, move the shift knob through all the low-range gear positions and then pull the range-preselection lever up to move into the high-range ratios. Use the same shift knob positions in both the low and high ranges.
Dependent on the transmission model, some ratios can be split using the splitter-control button (located on the side of the shift knob).