Engage Differential Lock

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LX234589-UN-04MAR15

Foot Brake with Steering Brake (Two Brake Pedals) Shown

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A - Switching the Differential Lock On or Off Manually

B - Switching the Differential Lock On or Off Automatically

C - Button for Switching the Differential Lock On Manually¹

D - Differential Lock Indicator Light

CAUTION: Do not attempt to turn around with differential lock engaged!

Differential lock, manual switch-on and switch-off

If slippage varies greatly between rear wheels, engage differential lock at switch position (A) or button (C) (only if the difference in speed is not too high).

NOTE: When the differential lock is switched on, indicator light (D) on the instrument panel lights up.

The differential lock is switched off as follows:

• Repeatedly actuating the switch at position (A)

• By depressing one or both of the brake pedals

It is the responsibility of the operator to switch the differential lock back on again.

Differential lock, automatic switch-on and switch-off

The function for automatically switching the differential lock on and off can be enabled and disabled at switch position (B). If the function is active, the indicator light in switch (B) lights up and the differential lock is automatically switched on or off depending on the driving situation.

NOTE: If the differential lock activates due to the driving situation, indicator light (D) lights up on the instrument panel.

NOTE: Automatic differential lock activation and deactivation is only available on tractors with front-wheel drive axles.

The following driving situations cause the differential lock to switch on or off automatically:
Driving situation	Differential Lock
• Ground speed below 19 km/h (11.8 mph) + Steering angle less than custom shut-off angle + Neither brake pedal depressed..............	ON
• Travel speed is greater than 23 km/h (14.3 mph) ..............	OFF
• One or both brake pedals pressed ..............	OFF
• Actuating the switch at position (B) ..............	OFF
• Steering angle greater than custom shut-off angle2 ..............	OFF

Differential lock, automatic engagement and disengagement via custom shut-off angle (if equipped)

To change the shut-off angle of the automatic engagement and disengagement of the differential lock, access diagnostic address “CCU 000157” and select the relevant input value. See “CCU - Control Software” in the “Diagnostic Trouble Codes and Settings” section.

The following automatic custom shut-off angles are available:

Input value	Shut-off angle
1 ..............	6°
2 ..............	9°
3 ..............	12°
4 ..............	15°