New track-type tractors

Lever efforts for Caterpillar’s new D3K, D4K and D5K dozers are decreased by as much as 90 percent compared to conventional mechanical control levers. The left joystick incorporates a thumb wheel for on-the-go speed adjustments, plus a speed recall button that lets the operator quickly select a pre-programmed operating speed. The right joystick includes an automatic blade shake button for easy removal of excess material, as well as a thumb roller for low-effort blade angle adjustments.
A single floor pedal controls the deceleration and service brake functions. Pressing the pedal past the speed control detent activates the service brakes.
The D3K, D4K and D5K have 74-hp (55kW), 84-hp (63kW) and 96-hp (72kW) engines, respectively, and are available with extra long (XL) and low ground pressure (LGP) track frames.
A single floor pedal controls the deceleration and service brake functions. Pressing the pedal past the speed control detent activates the service brakes.
The D3K, D4K and D5K have 74-hp (55kW), 84-hp (63kW) and 96-hp (72kW) engines, respectively, and are available with extra long (XL) and low ground pressure (LGP) track frames.

