225 pto hp • 930

10 11

Axles & Suspension

Comfort Begins at the front axle

A new front axle suspension system, with hydropneumatic suspension provides up to 12 inches

of travel — the longest of any standard tractor — while the fully automatic level control ensures

constant suspension travel up to the maximum front axle load.

The hydropneumatic independent wheel suspension is equipped with a double wishbone axle, which

optimises steering angle. The fully automatic level control ensures that suspension travel remains the

same on both sides (up to 17,636 lbs. of front axle load). Furthermore, the entire suspension travel

can be run through manually, the joints and bearings are maintenance- free and have no lubrication

points.

Rugged rear axle

The rear axle on all 900 Series tractors received an upgrade with bearings, gears and contact surfaces

designed to handle high horsepower. The rugged axle housing also incorporates two 10-inch, wet

multi-disc brakes that are housed internally for maximum protection from dirt and moisture. The

slow-running brakes, which are actuated via two pneumatic cylinders, provide smoother operation,

as well as more reliable braking action at high power and high transport speeds for greater safety.

As an added benefit, the rear axle incorporates a speed-controlled emergency steering pump in case

of engine failure.

Manual or automatic 4WD

Engage or disengage the differential lock and/or all-wheel-drive under full power in all conditions

with the touch of the keypad. Choose permanent 4WD or automatic mode, which deactivates the

4WD at speeds greater than 12.5 mph and/or a steering angle over 25 degrees.

ABS – for the highest level of braking performance

The ABS module measures the speed on each individual wheel using four speed

sensors. If the speed on one wheel is too slow, the ABS automatically opens the

corresponding brake to prevent the wheel from locking. Since the wheels on tractors

have a high inertia due to their size and weight, the ABS module also commu- nicates

with the tractor control unit. The control unit can then drive the affected wheel via

the Vario transmission, if opening the brake is not enough to maintain the required

speed. Both front wheels are controlled together to maintain the stability of the

900 Vario, even if there are different surfaces under each wheel. The rear wheels are

controlled individually by the ABS module.

1 ABS Module

2 Pressure limiting valve

3 Wheel brake

4 Speed sensor