Braking
NOTE!
The service brake's and retarder's performance can be reduced if
the brake cooling oil temperature becomes too high.
If the machine generates a warning for high brake cooling oil
temperature, reduce speed or stop the machine until the oil
temperature is back to a normal value. Follow the instructions on
the retarder diagram.
The machine's brake system consists of:
Service brakes
Engine brake
Load and dump brake
Parking brake
Retarder
Service brake
When operating downhill, first use the engine brake to minimize
wear of the wheel brakes.
The service brakes are divided into two separate circuits. If a
problem occurs in one of the circuits, the machine can still be
braked with the intact circuit.
Warning appears in the information display if the pressure is
incorrect in any circuit.
Brake smoothly. This is especially important in icy and slippery
ground conditions.
NOTE!
In case of defective brakes, stop the machine immediately and
contact a qualified workshop for action.
NOTE!
If brake action is lost in both brake circuits, the engine brake and
the parking brake are applied automatically to stop the machine.
Engine retarding
NOTE!
The engine brake should not be activated in slippery road
conditions.
The engine brake is activated and deactivated with the switch on
the control panel. See page
126
.
Regardless of the position of the switch, the engine brake is active
when the retarder pedal is pressed.
1 Switch for engine brake
2 Button for load & dump brake
3 Switch for parking brake
4 Brake pedal
5 Retarder pedal
Switch for engine brake
190
Operating instructions
Braking
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