Operation
Hydraulic system
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The two fan drives for the hydraulic fluid cooler and the engine radiator automatically
reverse direction at regular intervals. So that soiling is removed to a great extent inde-
pendently. The manual reversing is also possible. For this, call the "Reverse ventilator
drives" line in the menu "Special functions" and set the preset value at ON. After con-
firming the selection the ventilator drives will reverse for a cycle.
Hand steering articulation
Reverse ventilator drives
Programmable keys activation
B638 fuel pressure fine filter
The level should be kept in a range between 80% and 100%. Displayed values above
100% should be avoided. If the hydraulic fuel level is too low, then the R-Touch dis-
plays the warning icon: hydraulic fluid level too low. IMMEDIATELY shut off the
engine! If the driver ignores this warning the engine turns off automatically after a short
period. Refill hydraulic fluid and determine the cause for the lack of fluid. In case of a
burst hydraulic hose, in the most unfavourable case, the complete hydraulic fluid tank
becomes empty within 30 seconds.