Description of the vehicle
5.2 Brief description of the vehicle
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Operator’s Manual | 4080T Basic Line | 1000408123 | 05/2019 | [en]
Steering hydraulics and working hydraulics
Steering hydraulics and working hydraulics are supplied with oil by a gear
pump. The diesel engine constantly drives the gear pump. The gear
pump is flanged to the variable displacement pump of the drive system.
The oil flow is led via a priority valve through the steering orbitrol to the
control valve of the working hydraulics. The priority valve ensures that the
steering system is primarily supplied with hydraulic oil. By turning the
steering wheel, the steering orbitrol controls the oil flow to the double-act-
ing hydraulic cylinders of the steering system.
The functions of the working hydraulics are controlled via the joystick with
the control valve. The control valve directs the oil flow to the correspond-
ing hydraulic cylinders of the loader unit and the plug couplings for con-
necting hydraulically operated attachment and back into the hydraulic oil
tank.
5.2.6
Brakes
The brake is activated with the brake/inching pedal. The first part of the
pedal travel reduces the drive system, and then the braking is engaged.
The brake is located on the differential gear of the front axle. The brake
acts on the front and rear wheels as it is mounted on the drive shaft.
The parking brake is actuated with the handbrake lever and also acts on
the brake on the drive shaft.
The brake is designed as a drum or disc brake.
5.2.7
Steering system
The steering system is designed as articulated pendulum steering. It is
operated hydraulically via a steering orbitrol and double-acting hydraulic
cylinders.
Emergency steering feature
The steering system is only operational when the engine is running nor-
mally.
The vehicle can still be steered if the diesel engine or the pump drive
breaks down. However, operating the steering system then requires
greater strength and the steering will only respond slowly. Take this into
account especially when towing the vehicle. Adjust the towing speed to
the changed steering behavior (walking pace)!
5.2.8
Electrical system
The electrical system operates at a voltage of 12 V. Consumers and their
supply circuits are protected with fuses.
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