Differential Lock

RXA0141546-UN-12MAY14

CommandARM™ Differential Lock Controls

RXA0141542-UN-12MAY14

Corner Post Display

RXA0141548-UN-12MAY14

Differential Lock Floor Switch

A - Auto Lock Switch

B - Manual Lock Switch

C - Differential Lock Indicator

D - Differential Lock Floor Switch

IMPORTANT: Engage differential lock before entering situation where wheel slippage may occur or when all wheels appear to be turning at same speed. If engaged after wheels begin to spin, damage to differential could result.

NOTE: On tractors with front and rear differential locks, front axle differential lock engages when rear differential lock engages.

Differential Lock latches wheel axles together to provide best traction possible for slippery field conditions.

When one wheel begins to slip, differential lock can be engaged by selecting either of the two operating positions:

Auto Lock — Enter Auto mode by pressing Auto Lock switch (A) on armrest. When in auto mode, LED in Auto lock switch illuminates. Differential lock indicator (C) illuminates when differential lock is engaged. Auto Lock:

• Disengages when wheel speed is more than 23 km/h (14 mph), one or both brake pedals are depressed or steering angle greater than selected value. For more information on how to change differential lock steering angle see Adjust Steering Angle to Disengage Differential Lock in this section of this Operator’s Manual.
• Engages when wheel speed falls below 19 km/h (12 mph), steering angle less than selected value and brakes are released.

NOTE: When Auto lock switch is pressed, button is always lit until pressed again. Differential lock remains in Auto mode until operator selects Manual Lock (B), Differential Lock floor switch (D) or press Auto Lock switch again. Differential Lock indicator turns on and off depending on the state of differential lock.

Manual Lock — Enter Manual mode by pressing either Manual Lock switch on armrest or Differential Lock floor switch. When in Manual mode, LED in Manual Lock switch and Differential lock indicator illuminates. Press Manual Lock switch a second time or depress one or both brake pedals to disengage Manual mode.