Engage Front-Wheel Drive

Front-wheel drive, manual engagement and disengagement

LX234587-UN-04MAR15

LX234542-UN-27FEB15

A - Disengage Front-Wheel Drive

B - Engage Front/Wheel Drive (Switch in Mid-Position)

C - Front-Wheel Drive, Selecting Automatic Mode

D - Indicator Light Comes On when Front-Wheel Drive is Engaged

Front-wheel drive can be engaged and disengaged in all gears (forward and reverse), on-the-go and under load without using the clutch.

NOTE: Disengage front-wheel drive before driving at high speed on public roads.

NOTE: Regardless of which front-wheel drive mode is selected, if ground speed is over 5 km/h (3.1 mph), front-wheel drive switches on automatically when the brakes are applied (both brake pedals must be depressed if the foot brake has a steering brake) and remains on until the tractor has come to a standstill. The front-wheel drive indicator light (D) comes on.

The front-wheel drive mode selected previously becomes active again once braking has been completed.

NOTE: When driving at less than 5 km/h (3.1 mph) with front-wheel drive off, front-wheel drive does not come on when the brakes are applied.

Front-wheel drive, enable and disable auto mode

Auto mode of front-wheel drive may be enabled at switch position (C). If the function is active, front-wheel drive is automatically switched on or off depending on the driving situation.

To disable the auto mode, select switch position (B) or (A).

NOTE: If the front-wheel drive activates due to the driving situation, indicator light (D) also lights up on the instrument panel.

The following driving situations cause front-wheel drive to switch on or off:
Driving situation	Front-Wheel Drive
• Ground speed below 19 km/h (11.8 mph) + Steering angle less than custom shut-off angle1 ..............	ON
• Ground speed is greater than 23 km/h (14.3 mph) ..............	OFF
• Repeatedly actuating the switch at positions (B) or (A) ..............	OFF
• Steering angle greater than custom shut-off angle1 ..............	OFF

Activate and deactivate automatic mode of front-wheel drive via custom shut-off angle (if equipped)

IMPORTANT: The maximum possible shut-off angle for front-wheel drive auto mode depends on tire type, tread width, and steering stop and may be set lower than the angle that can be selected in diagnostic address “CCU 000173”. See “CCU - Control Software” in the “Diagnostic Trouble Codes and Settings” section.

As a result of tolerances in the set steering angle stop, it is possible that the set shut-off angle for the automatic mode of the front-wheel drive is not reached on one or both of the steering sides. To ensure that shut-off occurs on both sides, the next smaller shut-off angle must be selected in the display in this case.

To change the custom shut-off angle, access diagnostic address “CCU 000173” and enter the relevant input value.

The following automatic custom shut-off angles are available:

Input value	Shut-off angle
1 ..............	15°
2 ..............	20°
3 ..............	25°
4 ..............	30°
5 ..............	OFF