Transmission Controls

108SD d 05.06.006

Manual Transmissions

Note:  See General Information, Eaton Fuller Splitter and Range-Shift Transmissions for complete manual transmission operating instructions.

If so equipped, the transmission range control and splitter valves are attached to the gear shift knob.

The range-preselection lever allows the selection of the low or high range for each transmission ratio. It is used once during an upshift sequence and once during a downshift sequence.

Dependent on the transmission model, some ratios can be split using the splitter-control button.

Eaton Automated Transmissions

Note:  See General Information, Allison Transmissions for complete automated transmission operating instructions.

The SmartShift electronic transmission control is installed with the Eaton® Fuller® UltraShift™, UltraShift PLUS, and AutoShift™ transmissions. The SmartShift control is operated by the fingers of the driver's right hand, allowing both hands to remain on the steering wheel.

A two-position driving mode slide switch is mounted on the body of the control lever just before the paddle widens out. The slide switch allows the driver to choose automatic (AUTO) or manual (MAN) mode. See Fig..

To upshift manually, pull the lever back (towards the driver). To downshift manually, push the lever forward (away from the driver).

  1. SmartShift Control Lever

  2. Slide Switch (forward driving mode switch)

  3. MAN Mode (of slide switch)

  4. AUTO Mode (of slide switch)

  5. Upshift Direction

  6. Reverse Position (of selector switch)

  7. Selector Switch

  8. Neutral Lock Button

  9. Neutral Position (of selector switch)

  10. Drive Position (of selector switch)

  11. Low Position (of selector switch)

  12. Downshift Direction

Fig. 1, SmartShift Control (Eaton Fuller UltraShift, UltraShift PLUS, and AutoShift transmissions)

Allison Automatic Transmissions

Note:  See General Information, Allison Transmissions for complete automatic transmission operating instructions.

Automatic transmissions have up to six forward speeds and one reverse speed. These transmissions have electronic shift controls that can be programmed to allow the use of different geared speeds. See Fig..

  1. Indicator Panel

  2. Mode ID

Fig. 2, Allison Push Button Shift Selector

Note:
Parent topic: Powertrain Controls
Document Number: 0000111030
Manual Publication Date: 2024-09-03
Topic Publication Date: 2024-05-02