Vocational Driving Modes

The DT12 transmission can be equipped with a number of vocational modes, including Off-Road, Paver, and Rock Free.

Off-Road Mode

Off-Road mode is for extreme road conditions and features fewer shifts for improved traction and better driver control, later upshifts on partial throttle to hold gears longer, and earlier downshifting during service braking.

If equipped, this mode can be accessed by short presses on the mode switch on the shifter stalk. See Fig..

The ICUC will display "offroad" on the Home screen when this option is selected. See Fig..

Creep mode is disabled in Off-Road mode to protect clutch life.

Paver Mode

When paving a road, the paving machine pushes the dump truck before it as the truck supplies asphalt to the machine. Paver Mode allows the dump truck to shift from Neutral to Drive without depressing the brake pedal; depressing the brake pedal causes the paver to stop and a bump to form in the road.

Paver mode can be accessed by either pushing down or pulling up on the shifter stalk and rotating the direction switch from N to D.

Rock Free Mode

Rock Free mode allows the driver to free a stuck vehicle by pressing and releasing the accelerator pedal and causing the vehicle to rock. Rock Free mode causes faster and more aggressive clutch opening and closure, which creates increased momentum and traction compared to moving from D to R. It also removes stress on the drive line caused by moving from D to R.

To operate Rock Free mode:

1. Stop the vehicle and press the Rock Free switch on the dash. See Fig..

2. Press the accelerator to engage the clutch and gain momentum.

3. Remove foot from the accelerator to disengage the clutch.

4. Repeat engaging and disengaging the clutch to cause a rocking motion.

Rock Free mode can be disengaged manually by pressing the Rock Free dashboard switch.